Entries |
Document | Title | Date |
20080202757 | METHOD OF STIMULATING A COALBED METHANE WELL - A method of stimulating gas production from a coalbed methane well that involves injecting a foam forming liquid and an expandable fluid into a coal seam proximate the wellbore. When the wellbore pressure is reduced, at least a portion of the expandable fluid can vaporize, which can generate foam that aids in the formation and/or enlargement of a cavity in the coal seam proximate the wellbore. | 08-28-2008 |
20080230226 | METHOD AND APPARATUS FOR ISOLATING A WELLHEAD FOR FRACTURING - A welihead assembly to seal to a production casing including one or more pressure-containing wellhead body members defining a vertical bore, with the lowermost of the wellhead body members sealing to the production casing. A fracturing isolation tool is sealed in the vertical bore of the wellhead body members above the production casing, and forms a pressure barrier profile in its internal bore. A removable protector sleeve is located at least partially within the fracturing isolation tool to seal, protect, isolate and cover the pressure barrier profile against a fracturing pressure and a fracturing fluid. After fracturing the protector sleeve is removed and a pressure barrier is sealed in the pressure barrier profile of the fracturing isolation tool. The invention also extends to the method of isolating the wellhead body members and to the fracturing isolation tool assembly which includes the fracturing isolation tool and the protector sleeve. | 09-25-2008 |
20080264640 | WELL TREATMENT USING ELECTRIC SUBMERSIBLE PUMPING SYSTEM - A technique provides an electric submersible pumping system to facilitate a well treatment, such as a hydraulic fracturing well treatment. The electric submersible pumping system is positioned downhole and oriented to intake a fluid delivered downhole for use in the well treatment. Once the fluid is delivered downhole, the electric submersible pumping system pumps, pressurizes and discharges this fluid to perform the well treatment, e.g. the hydraulic fracturing treatment. The pumping system reduces the pressure at which the treatment fluid must be delivered downhole. | 10-30-2008 |
20080271894 | Method and apparatus for subterranean fracturing - A subterranean formation stimulation system, comprising a gas generator, a high pressure seal, and means to activate the generator. The high pressure may be a packer and or plug having an outer sealing surface on its outer periphery. The outer sealing surface is configured for metal to metal contact with the inner circumference of wellbore casing. The gas generator can be compressed gas or a propellant. The means to activate the generator includes a shaped charge. The system is disposable in a wellbore on wireline, slick line, or tubing. | 11-06-2008 |
20080277120 | Retrievable frac mandrel and well control stack to facilitate well completion, re-completion or workover and method of use - A retrievable frac mandrel and a well control adapter are used to efficiently accomplish well completion, re-completion or workover. The retrievable frac mandrel is inserted in a tubing head spool of a well to be completed, re-completed or re-worked. The well control adapter is mounted to a top of the tubing head spool and seals off against a top of the retrievable frac mandrel. After well completion, re-completion or workover is completed, the frac mandrel can be retrieved from the tubing head spool without killing or plugging the well. | 11-13-2008 |
20090032260 | INJECTION PLANE INITIATION IN A WELL - Initiation of injection planes in a well. A method of forming at least one generally planar inclusion in a subterranean formation includes the steps of: expanding a wellbore in the formation by injecting a material into an annulus positioned between the wellbore and a casing lining the wellbore; increasing compressive stress in the formation as a result of the expanding step; and then injecting a fluid into the formation, thereby forming the inclusion in a direction of the increased compressive stress. Another method includes the steps of: expanding a wellbore in the formation by injecting a material into an annulus positioned between the wellbore and a casing lining the wellbore; reducing stress in the formation in a tangential direction relative to the wellbore; and then injecting a fluid into the formation, thereby forming the inclusion in a direction normal to the reduced tangential stress. | 02-05-2009 |
20090044944 | Multi-Position Valve for Fracturing and Sand Control and Associated Completion Methods - A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves that can assume at least two configurations: wide open and open with a screen material juxtaposed in the flow passage. In a preferred embodiment the valve assembly has three positions, adding a fully closed position to the other two mentioned. After run in, the valves can be put in the wide open position in any order desired to fracture. After fracturing, the valves can be closed or selectively be put in filtration position for production from the fractured zones in any desired order. Various ways are described to actuate the valves. The tubular can have telescoping pistons through which the fracturing can take place if the application calls for a cemented tubular. Alternatively, the tubular can be in open hole and simply have openings for passage of fracture fluid and external isolators to allow fracturing in any desired order. | 02-19-2009 |
20090044945 | METHOD FOR HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATION - The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage that involves injection into a borehole of fracturing fluid containing thickeners to create a fracture in the formation; and a second stage that involves periodic introduction of proppant into the injected fracturing fluid to supply the proppant into a created fracture, to form proppant clusters within the fracture to prevent fracture closure and channels for flowing formation fluids between the clusters, wherein the second stage or its sub-stages involve additional introduction of either a reinforcing or consolidation material or both, thus increasing the strength of the proppant clusters formed into the fracture fluid. Another method comprises: a first stage that involves injection of said fracturing fluid into a borehole, and a second stage that involves introduction of proppant into the injected fracturing fluid and further, involving periodic introduction of an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids. Still another method comprises: a first stage that involves injection of a fracturing fluid into a borehole; a second stage that involves continuous introduction of a proppant into the injected fracturing fluid, and a third stage that involves injection of a lower-viscosity, in comparison with fracturing, fluid into the fracturing fluid, the lower-viscosity fluid, owing to the difference in viscosity compared to the fracturing fluid, penetrating into the fracturing fluid in the form of intrusions that divide the proppant into discrete clusters to form channels between them through which formation fluids to pass. | 02-19-2009 |
20090107680 | Apparatus and method for ratcheting stimulation tool - A method and apparatus for ratcheting a stimulation tool in a well is disclosed. The stimulation tool is movable from a first radial position to a second radial position without moving the tool string. | 04-30-2009 |
20090223670 | SYSTEMS, ASSEMBLIES AND PROCESSES FOR CONTROLLING TOOLS IN A WELL BORE - A dedicated hydraulic line for transmission of a signal device capable of generating one or more unique signals to one or more tools within a subterranean well. Each tool can be equipped with a reader device for receiving signals from and transmitting signals to the signal device. Each reader device can control operation of the tool associated therewith if the reader device is programmed to respond to signals received from the control device. Hydraulic fluid used to operate the tool can be conveyed via the dedicated hydraulic line or a separate hydraulic line. A separate hydraulic line can be used to reset the tool. Where the tools include sliding sleeves, the tools can be used to hydraulically fracture subterranean environs at spaced apart locations along a well bore in any desired sequence and without removing the tools from the well during the fracturing process. | 09-10-2009 |
20090242205 | METHOD AND APPARATUS FOR DETECTING ACOUSTIC ACTIVITY IN A SUBSURFACE FORMATION - A method of monitoring acoustic activity in a formation from a wellbore includes positioning a flow manipulation device into the wellbore, the flow manipulation device defining a flow path through which fluid may flow. Fluid is then pumped into the wellbore and through the manipulation device. A sensor disposed near the manipulation device is then coupled to the formation, the formation is fractured with fluid, and acoustic events in the formation are detected with the sensor. | 10-01-2009 |
20090266548 | Rock Stress Modification Technique - A technique involves facilitating fracturing operations along a wellbore extending through a subterranean formation. A stress device is deployed in a wellbore and activated to engage a surrounding wall. The stress device can then be manipulated to create a reduced stress region in the formation at a desired location along the wellbore. The reduced stress region facilitates the controlled formation of a fracture in the formation at the desired location. Furthermore, the stress device can be moved and the process repeated at multiple locations along the wellbore. | 10-29-2009 |
20090301725 | Proppant Addition Method and System - A method of injecting a fracturing fluid may include pressurizing a first fluid with clean high-pressure pumps, joining proppant with the pressurized first fluid to form a fracturing fluid, and moving the fracturing fluid to a wellhead and downhole into a formation for fracturing. A pump may pressurize the proppant without the proppant passing therethrough. | 12-10-2009 |
20090321076 | Completion Method with Telescoping Perforation & Fracturing Tool - An apparatus and method for perforating a liner, fracturing a formation, and injection or producing fluid, all in one trip with a single tool. The tool has a plurality of outwardly telescoping elements ( | 12-31-2009 |
20100044047 | Method for impulse stimulation of oil and gas well production - A method for fracturing an oil or gas formation. The method includes introducing a gas impulse device into a wellbore followed by pumping a pressurized liquid into a wellbore at a pressure equal to or lower than the estimated fracture pressure of the formation. Finally, the method includes firing the gas impulse device periodically so that the device releases high pressure compressed gas impulses. The impulses when expanding through the pumped pressurized liquid substantially instantaneously increases the fracturing liquid flow rate into the oil or gas formation. It causes the total pressure to exceed the actual fracturing pressure of the formation thereby initiating or extending fractures in the formation stimulating the flow of the oil or gas therefrom into the wellbore. Use of the method of the invention in waterflooding and preventing lost circulation is also described. | 02-25-2010 |
20100044048 | Non-toxic, green fracturing fluid compositions, methods of preparation and methods of use - The invention describes improved environmentally friendly, non-toxic, green fracturing compositions, methods of preparing fracturing compositions and methods of use. Importantly, the subject invention overcomes problems in the use of water-based mists as an effective fracturing composition particularly having regard to the ability of a mist to transport an effective volume of proppant into a formation. As a result, the subject technologies provide an effective economic solution to using high ratio gas fracturing compositions that can be produced in a continuous (i.e. non-batch) process without the attendant capital and operating costs of current pure gas fracturing equipment. | 02-25-2010 |
20100044049 | GREEN COAL BED METHANE FRACTURING FLUID COMPOSITIONS, METHODS OF PREPARATION AND METHODS OF USE - The invention describes improved environmentally friendly, non-toxic, CBM friendly, green fracturing compositions, methods of preparing fracturing compositions and methods of use. Importantly, the subject invention overcomes problems in the use of water-based mists as an effective fracturing composition particularly having regard to the ability of a mist to transport an effective volume of proppant into a formation. As a result, the subject technologies provide an effective economic solution to using high ratio gas fracturing compositions that can be produced in a continuous (i.e. non-batch) process without the attendant capital and operating costs of current pure gas fracturing equipment. | 02-25-2010 |
20100059226 | Method of Delivering Frac Fluid and Additives - A method for the controlled delivery of a fracturing fluid to a well bore comprises formulating an aqueous base fluid such that it meets or exhibits desired physical and chemical characteristics for an optimal fracturing fluid. The formulation of the aqueous base fluid max involve commingling one or more sources of waste water with a source of fresh water followed by controlled injection of one or more additives. This process is substantially completed prior to delivering the aqueous base fluid to the well site. This allows the delivery of an optimal volume of the aqueous base fluid with homogeneously blended additives to the well bore. | 03-11-2010 |
20100065276 | METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT - A tubing string assembly is disclosed for fluid treatment of a wellbore. The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off. The tubing string can also be used where a ported tubing string is required to be run in in a pressure tight condition and later is needed to be in an open-port condition. | 03-18-2010 |
20100096139 | Method for Intervention Operations in Subsurface Hydrocarbon Formations - Methods are provided for improved intervention processes in a well. Nanoparticles are added to a fluid containing a wetting agent to enhance wetting of solid surfaces in and around the well, leading to improved flow capacity of the well. | 04-22-2010 |
20100101795 | HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATIONS - Methods of hydraulically fracturing subterranean coal seams and formations resulting in improved permeability to stimulate Coalbed Methane. In one method, the coal seam is fractured using a proppant-containing fracturing fluid in alternating stages with an aqueous base solution that etches the fracture faces of the coal thereby creating channels for fluid flow. In another method, the coal seam is fractured using a fracturing fluid without propping agents in alternating stages with an aqueous base solution that is pumped at a pressure sufficient to maintain the fractures in an open position thereby etching the fracture faces to create channels for fluid flow. In yet another embodiment, a base solution is injected into the formation at a pressure sufficient to create fractures therein and simultaneously etch the faces of the open fractures to thereby form channels in the faces for increased fluid flow. | 04-29-2010 |
20100108319 | Reduced Waste Cleaning Methods for Oil Well Related Systems - A method for using an engineered fluid in a manner that reduces or minimizes waste includes applying the engineered fluid to a container having a settled component of a stored fluid, retrieving the applied engineered fluid and at least a portion of the settled component from the container, and using the applied engineered fluid at least once in the same manner as the stored fluid was used. In certain applications, the applied engineered fluid may be put to a different use. The engineered fluid may be processed prior to use. | 05-06-2010 |
20100116500 | Method of Fracturing a Subterranean Formation at Optimized and Pre-determined Conditions - Prior to a hydraulic fracturing treatment, the requisite injection rate for a desired propped fracture length of a fracture may be estimated with knowledge of certain physical properties of the proppant and transport fluid such as fluid viscosity, proppant size and specific gravity of the transport slurry as well as fracture geometry and the fracture length. The requisite injection rate may be determined for the desired propped fracture length of the fracture, D | 05-13-2010 |
20100122817 | Apparatus and method for servicing a wellbore - A wellbore servicing apparatus, comprising a housing comprising a plurality of housing ports, a sleeve being movable with respect to the housing, the sleeve comprising a plurality of sleeve ports to selectively provide a fluid flow path between the plurality of housing ports and the plurality of sleeve ports, and a sacrificial nozzle in fluid communication with at least one of the plurality of the housing ports and the plurality of sleeve ports. A method of servicing a wellbore, comprising placing a stimulation assembly in the wellbore, the stimulation assembly comprising a housing comprising a plurality of housing ports, a selectively adjustable sleeve comprising a plurality of sleeve ports, and a sacrificial nozzle in fluid communication with one of the plurality of the housing ports and the plurality of sleeve ports, the sacrificial nozzle comprising an aperture, a fluid interface, and a housing interface. | 05-20-2010 |
20100126728 | SINTERED SPHERICAL PELLETS - Sintered, spherical composite pellets or particles comprising alumina fines, at least one of clay and bauxite and optionally a sintering aid, are described, along with a process for their manufacture. The use of such pellets in hydraulic fracturing of subterranean formations and in grinding is also described. | 05-27-2010 |
20100132949 | PROCESS AND PROCESS LINE FOR THE PREPARATION OF HYDRAULIC FRACTURING FLUID - A process and process line is provided for preparing a friction-reduced hydraulic fracturing fluid at a central location which can be readily transported to an oil or gas well in a formation at a well site, comprising: preparing a mixture of polymer and water at the central location by shearing the polymer in the water in a high shear environment to create the friction-reduced hydraulic fracturing fluid; pumping the friction-reduced hydraulic fracturing fluid through a series of pumps and pipelines to the well site; and injecting the hydraulic fracturing fluid into the oil or gas well at a pressure sufficient to cause fracturing of the formation. | 06-03-2010 |
20100181073 | Method For Controlling Loss of Drilling Fluid - Methods for drilling and treating for lost returns continuously while drilling are provided. High fluid loss drilling fluid is used, along with particulate material that forms an immobile mass in hydraulic fractures to prevent their growth. The particulate material may be selected based on the predicted size of a hydraulic fracture, based on particle size to minimize fines, based on specific gravity to attain high solids content for a selected fluid density, and/or based on permeability of the particles to a high spurt loss. | 07-22-2010 |
20100206571 | METHOD AND APPARATUS FOR SETTING AN INFLATABLE PACKER IN A SUBHYDROSTATIC WELLBORE - An embodiment of an assembly for setting an inflatable packer within a wellbore comprises a coiled tubing, an inflatable packer to be set in a wellbore, a back pressure valve, and a drain valve operable to allow fluid flow therepast and prevent inadvertent inflation of the inflatable packer. | 08-19-2010 |
20100243255 | Apparatus and Method for Oilfield Material Delivery - In an embodiment, a method of operating at least one pressure vessel to inject a particulate slurry into a high-pressure line, comprises a first operating cycle comprising: isolating the at least one pressure vessel from the high-pressure line; introducing particulate solids into the pressure vessel through a particulate solids inlet aperture; a second operating cycle comprising: providing high-pressure flow into the pressure vessel; and providing a high-pressure slurry flow from the pressure vessel into the high-pressure line. The method further comprises operating the at least one pressure vessel in the second operating cycle to create a heterogeneous flow of slurry into the high-pressure line. | 09-30-2010 |
20100243256 | BORE-HOLE JET DEVICE FOR FORMATION HYDRAULIC FRACTURING AND HORIZONTAL WELL EXAMINATION AND A METHOD FOR THE OPERATION THEREOF - A jet pump and packer. The pump body comprises nozzle and mixing chamber with diffuser, coaxially arranged therein, and a stepped through channel therein, tapers from the top downward and is provided with a seat between steps. The channel is made coaxially with a pipe string and coupled thereto. Channels for supplying pumped from the well and active media is provided with return valve and restrictor for limiting locking member displacement of the return valve upward respective to the seat thereof. A sealing unit being a hollow stepped body with sealing element can be arranged in the through channel. An axial channel for passing a rigid logging cable with well-logging instrument is made in the sealing element. A guiding separation bush cantilever fitted by the top end thereof to the top part of the body of the pump mounts above the channel axially thereto in the pump body. Longitudinal slotted orifices are made in the separation bush wall. The invention makes it possible to improve the reliability of the device and to optimise the sequence of operations during the well test. | 09-30-2010 |
20100252268 | USE OF CALIBRATION INJECTIONS WITH MICROSEISMIC MONITORING - A method of treating a subterranean formation penetrated by a wellbore is carried out by performing a diagnostic operation wherein a fluid is introduced into the wellbore at a pressure sufficient to create at least one microseismic event within the formation. The at least one microseismic event is monitored. At least one property of the formation surrounding the well is determined based on the monitored at least one microseismic event. A well treatment is performed based upon the determined at least one property of the well wherein the well is modified by the well treatment. | 10-07-2010 |
20100263871 | Open Hole Frac System - A fracturing operation is done in open hole without annular space isolation. The annular space is spanned by telescoping members that are located behind isolation valves. A given bank of telescoping members can be uncovered and the telescoping members extended to span the annular space and engage the formation in a sealing manner. Pressurized fracturing fluid can be pumped through the telescoped passages and the portion of the desired formation fractured. In a proper formation, cementing is not needed to maintain wellbore integrity. The telescoping members can optionally have screens. Normally, the nature of the formation is such that gravel packing is also not required. A production string can be inserted into the string with the telescoping devices and the formation portions of interest can be produced through the selectively exposed telescoping members. | 10-21-2010 |
20100263872 | Erosion Resistant Flow Connector - A wellbore servicing apparatus, comprising an inlet space, a central space adjacent and in fluid communication with the inlet space along a central axis, a dome space adjacent and in fluid communication with the central space along the central axis, and a plurality of channels adjacent to and in fluid communication with the dome space, wherein the plurality of channels are radially spaced about the central axis, and wherein a channel axis of the at least one of the plurality of channels is incident the central axis by less than ninety degrees. | 10-21-2010 |
20100263873 | METHOD AND APPARATUS FOR USE IN SELECTIVELY FRACING A WELL - An apparatus for selectively fracing a well includes a tubular body having an exterior surface, and an interior surface that defines an interior bore. An annular flow area that has at least one fluid flow port extends radially through the tubular body to permit fluids from the interior bore to pass through the at least one fluid flow port into a surrounding earth formation. An external sealing sleeve selectively covers the annular flow area. There is a pressure actuated sleeve shifting mechanism, where increasing pressure tending to cause axial movement of the external sealing sleeve. The axial movement is resisted until a pre-selected pressure threshold is reached to permit movement of the external sealing sleeve to open the at least one fluid flow port. | 10-21-2010 |
20100263874 | METHOD AND APPARATUS FOR FREEZE-THAW WELL STIMULATION USING ORIFICED REFRIGERATION TUBING - A method and apparatus for introducing refrigerant into a wellbore, for freeze-fracturing a selected region of a subsurface formation, uses refrigerant diffuser pipe having multiple orifices in a selected pattern along a designated section of its length. The orificed supply tubing is disposed within a refrigerant return conduit, thereby forming a tubing annulus. A flow of liquid refrigerant is introduced into the diffuser pipe and flows through the orifices into the tubing annulus, with the orifices acting as expander means creating a pressure drop and causing vaporization of the refrigerant as it passes into the annulus. To facilitate use of the same diffuser pipe in different wells having different requirements, a helical orifice-isolation wrap may be disposed around the diffuser pipe, with the orifice-isolation wrap having orifice-plugging elements arrayed to effectively block fluid flow through selected orifices, while leaving other orifices open as required. In this way, it is possible to design diffuser pipes with particular orifice arrangements that will accommodate two or more different isolation wraps, with each different wrap plugging different patterns of orifices. | 10-21-2010 |
20100282469 | Fracturing with Telescoping Members and Sealing the Annular Space - A fracturing operation is done in open hole. The annular space is spanned by telescoping members that are located behind isolation valves. A given bank of telescoping members can be uncovered and the telescoping members extended to span the annular space and engage the formation in a sealing manner. Pressurized fracturing fluid can be pumped through the telescoped passages and the portion of the desired formation fractured. In a proper formation, cementing is not needed to maintain wellbore integrity. In formations that need annular space isolation, the string in a preferred embodiment can have an external material that grows to seal the annular space in lieu of a traditional cementing operation. | 11-11-2010 |
20100282470 | METHODS OF INCREASING FRACTURE RESISTANCE IN LOW PERMEABILITY FORMATIONS - A method of increasing the fracture resistance of a low permeability formation that includes emplacing a wellbore fluid in a wellbore through the low permeability formation, the wellbore fluid comprising: a settable carrier fluid; and a solid particulate bridging material; increasing the pressure in the wellbore such that fractures are formed in the formation; allowing the settable carrier fluid to enter the fractures; bridging and sealing the mouths of the fractures to form a substantially impermeable bridge proximate the mouth of the fractures thereby strengthening the formation; and holding the increased pressure for an amount of time sufficient for setting of the carrier fluid in the fractures is disclosed. | 11-11-2010 |
20100282471 | HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATIONS - Methods of hydraulically fracturing subterranean coal seams and formations resulting in improved permeability to stimulate Coalbed Methane. In one method, the coal seam is fractured using a proppant-containing fracturing fluid in alternating stages with an aqueous base solution that etches the fracture faces of the coal thereby creating channels for fluid flow. In another method, the coal seam is fractured using a fracturing fluid without propping agents in alternating stages with an aqueous oxidizing solution that is pumped at a pressure sufficient to maintain the fractures in an open position thereby etching the fracture faces to create channels for fluid flow. In yet another embodiment, the aqueous oxidizing agent solution is pumped into the formation at a pressure sufficient to create fractures therein and simultaneously etch the faces of the open fractures to thereby form channels in the faces for increased fluid flow. | 11-11-2010 |
20100288500 | FIBER AGGREGATE - Fiber aggregate comprising organic polymeric fibers, wherein the organic polymeric fibers have an average length in a range from 2 to 20 millimeters, an average diameter up to 100 micrometer, and comprise at least 75 percent by solid volume of the fiber aggregate, wherein the fiber aggregate has an unrestrained bulk density of at least 0.05 g/cm | 11-18-2010 |
20100300693 | Enzyme Surfactant Fluids Used in Non-Gel Hydraulic Fracturing of Oil Wells - The present application describes improved total recovery of oil, condensate and associated gas in a subterranean formation such that said hydrocarbons are released by a hydraulic fracturing process with a non-gel hydraulic fracturing fluid that comprises an enzyme surfactant fluid with at least one anionic surfactant thereby forming a non-gel hydraulic fracturing fluid enzyme surfactant composition which is injected at 1 to 3 percent of total frac fluid during fracturing. | 12-02-2010 |
20100307755 | METHOD AND APPARATUS FOR EFFICIENT REAL-TIME CHARACTERIZATION OF HYDRAULIC FRACTURES AND FRACTURING OPTIMIZATION BASED THEREON - Methods and systems for characterizing hydraulic fracturing of a subterranean formation based upon inputs from sensors measuring field data in conjunction with a fracture model. Such characterization can be generated in real-time to automatically manipulate surface and/or down-hole physical components supplying hydraulic fluids to the subterranean formation to adjust the hydraulic fracturing process as desired. The hydraulic fracture model as described herein can also be used as part of forward calculations to help in the design and planning stage of a hydraulic fracturing treatment. In a preferred embodiment, the fracture model constrains geometric and geomechanical properties of the hydraulic fractures of the subterranean formation using the field data in a manner that significantly reduce the complexity of the fracture model and thus significantly reduces the processing resources and time required to provide accurate characterization of the hydraulic fractures of the subterranean formation. | 12-09-2010 |
20100307756 | GEOTHERMAL CIRCULATION SYSTEM - The invention relates to a method for configuring a geothermal circulation system in a target underground region, comprising at least one injection wellbore ( | 12-09-2010 |
20100314118 | Liquid Crystals for Drilling, Completion and Production Fluids - Fluids containing liquid crystal-forming surfactants or polymeric surfactants, or polymers, or complex polymers or copolymers, or graphite nanotubes or Janus particles in a polar and/or non polar liquid, and optionally, co-surfactants, are useful in drilling, completion and production operations to give increased viscosity (solids suspension ability) and/or decreased fluid loss, as compared to otherwise identical fluids absent the liquid crystals. These liquid crystal compositions contain organized micelles. The liquid crystal-containing fluids are useful in completion fluids, fracturing fluids, formation damage remediation, waste management, lost circulation, drilling optimization, reducing trapped annular pressure during the hydrocarbon production process, well strengthening, friction and drag reducers, fluids introduced through an injection well, for geothermal wells, and the controlled release of additives into a wellbore, at a subterranean formation or at the oil production facilities. | 12-16-2010 |
20100319922 | Methods of Fracturing Subterranean Formations Using Sulfonated Gelling Agent Polymers - Methods of forming one or more fractures in a subterranean formation penetrated by a well bore including the steps of providing a high ionic strength treating fluid that comprises water and one or more sulfonated gelling agent polymers wherein the high ionic strength treating fluid comprises one or more water soluble salts in a concentration of greater than about 8% by weight of the treating fluid, and introducing the treating fluid into the subterranean formation at a rate and pressure sufficient to create or enhance one or more fractures therein. | 12-23-2010 |
20100319923 | MOBILE SYSTEMS AND METHODS OF SUFFICIENTLY TREATING WATER SO THAT THE TREATED WATER MAY BE UTILIZED IN WELL-TREATMENT OPERATIONS - A system is provided that includes: (a) a mobile platform; (b) an input pump operatively connected to be capable of pumping a treatment stream through the system; (c) a centrifugal separator operatively connected downstream of the input pump to centrifugally treat the treatment stream; (d) a borate filter operatively connected downstream of the centrifugal separator to filter the treatment stream capable of removing at least some of a borate when the treatment stream is at a pH of 8 or above; and (e) a chemical-additive subsystem operatively connected to be capable of: (i) selectively adding one or more chemical agents to the treatment stream upstream of the centrifugal separator, wherein the chemical agents can be selected to be capable of precipitating dissolved ions selected from the group consisting of: sulfate, calcium, strontium, or barium, magnesium, iron; and (ii) selectively adding a chemical agent to the treatment stream upstream of the borate filter to increase the pH of the treatment stream to 8 or above. | 12-23-2010 |
20110000672 | Clay Stabilization with Nanoparticles - A treating fluid may contain an effective amount of a particulate additive to stabilize clays, such as clays in a subterranean formation, by inhibiting or preventing them from swelling and/or migrating, where the particulate additive is an alkaline earth metal oxide, alkaline earth metal hydroxide, alkali metal oxide, alkali metal hydroxide, transition metal oxide, transition metal hydroxide, post-transition metal oxide, post-transition metal hydroxide, piezoelectric crystal, and/or pyroelectric crystal. The particle size of the magnesium oxide or other agent may be nanometer scale, which scale may provide unique particle charges that help stabilize the clays. These treating fluids may be used as treatment fluids for subterranean hydrocarbon formations, such as in hydraulic fracturing, completion fluids, gravel packing fluids and fluid loss pills. The carrier fluid used in the treating fluid may be aqueous, brine, alcoholic or hydrocarbon-based. | 01-06-2011 |
20110005759 | FRACTURING SYSTEM AND METHOD - A telescoping unit for a downhole tool including an innermost portion of the telescoping unit; a block defining a restriction disposed within the innermost portion of the telescoping unit; and an erodable coating on the block to segregate the block from downhole fluids and method. | 01-13-2011 |
20110005760 | SYSTEM AND METHOD FOR LOW DAMAGE FRACTURING - A method of fracturing a subterranean formation comprising at least in part shale formation, comprises providing a carrier fluid; providing a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 microns and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.75; combining the carrier fluid and the particulate blend into a fracturing slurry; fracturing the formation with the fracturing slurry to create at least a fracture; and removing the second amount of particulates from the fracture. | 01-13-2011 |
20110011592 | PULSE FRACTURING DEVICE AND METHOD - A method of inducing fracture in at least a portion of a geologic structure includes inducing acoustic waves into a fluid medium present in a borehole extending at least partially into the structure. Embodiments may include preheating or pressurizing the fluid medium prior to inducing the acoustic wave therein. A device for fracturing at least a portion of a geologic structure includes electrodes for producing a spark to generate ordinary acoustic waves in the fluid medium. Embodiments may include structures for preheating or pressurizing the fluid medium prior to inducing the acoustic wave therein. | 01-20-2011 |
20110017458 | Method for Inducing Fracture Complexity in Hydraulically Fractured Horizontal Well Completions - A method of inducing fracture complexity within a fracturing interval of a subterranean formation comprising characterizing the subterranean formation, defining a stress anisotropy-altering dimension, providing a wellbore servicing apparatus configured to alter the stress anisotropy of the fracturing interval of the subterranean formation, altering the stress anisotropy within the fracturing interval, and introducing a fracture in the fracturing interval in which the stress anisotropy has been altered. A method of servicing a subterranean formation comprising introducing a fracture into a first fracturing interval, and introducing a fracture into a third fracturing interval, wherein the first fracturing interval and the third fracturing interval are substantially adjacent to a second fracturing interval in which the stress anisotropy is to be altered. | 01-27-2011 |
20110024121 | METHOD AND APPARATUS FOR MULTILATERAL MULTISTAGE STIMULATION OF A WELL - A method enables stimulation of a well having a plurality of lateral wellbores. The method comprises deploying fracturing equipment downhole for isolated interaction with each lateral wellbore of the plurality of lateral wellbores. The method and the fracturing equipment are designed to enable fracturing of the plurality of lateral wellbores during a single mobilization. | 02-03-2011 |
20110036582 | Solid incorporated reversible emulsion for a fracturing fluid - Embodiments of this invention relate to an apparatus and a method for treating a subterranean formation permeated by a wellbore including forming a fluid comprising a reverse emulsion and a degradable material, introducing the fluid into a wellbore, and allowing the degradable material to degrade. Embodiments of this invention relate to an apparatus and a method for treating a subterranean formation permeated by a wellbore including forming a fluid comprising a reverse emulsion and a fluid loss additive, introducing the fluid into a wellbore, and allowing the fluid loss additive to degrade. | 02-17-2011 |
20110036583 | SLIP-LAYER FLUID PLACEMENT - A method of fluid placement in a hydraulic fracture created in a subterranean formation penetrated by a wellbore that comprises the use of one or more reactants that form a low friction layer between the fluids that penetrate the fracture in consecutive treatment stages. Reactants can be added to the fluid that is the carrier or other fluid to be placed in a specific region of the fracture, namely as an upper or lower boundary of the fracture, or added to both the stage that requires placement in a specific section of the fracture and in the stage preceding it, especially the pad and carrier fluids used in consecutive stages. | 02-17-2011 |
20110036584 | DETERMINING FLUID RHEOLOGICAL PROPERTIES - Controlling a well injection operation, such as a well fracturing operation, includes identifying a flow characteristic of a fracturing fluid, identifying a flow characteristic of a base fluid used for forming the fracturing fluid, determining an amount of friction reduction change of the fracturing fluid, and adjusting the amount of friction reduction of the fracturing fluid to coincide with a selected friction reduction amount. Identifying a flow characteristic may be performed by a rheology measuring device including a measurement tube, a first pressure sensor disposed at a first position on the measurement tube, a second pressure sensor disposed at a second position on the measurement tube, a flow meter disposed at a third position along the measurement tube, a temperature sensor disposed at a fourth location along the measurement tube, and a control unit interconnected to the first and second pressure sensors, the flow meter, and the temperature sensor. | 02-17-2011 |
20110061869 | Formation of Fractures Within Horizontal Well - Producing transverse fractures in a horizontal well may be achieved at a relatively lower fracturing pressure by forming one or more tunnels extending from the horizontal wellbore. One or more tunnels may be formed at each location along the horizontal wellbore where a transverse fracture is desired. The tunnel(s) may be formed mechanically, optically, or hydraulically. Further, fracturing may be formed at a lower pressure than would otherwise be required to form transverse fractures from a horizontal wellbore. According to some implementations, the transverse fractures may be formed without isolating a portion of the horizontal wellbore. | 03-17-2011 |
20110083852 | FRAC ADAPTER FOR WELLHEAD - There is provided a frac adapter configured to couple a frac tree to a wellhead component. The frac adapter may couple the frac tree to a casing head without a tubing head, thereby enabling the well to be fractured before the tubing head is installed. As a result, the tubing head used in well production may be pressure-rated for production pressures rather than for fracing pressures. The frac adapter may be coupled to or integral with the frac tree. In addition, a union-nut coupling may be employed to quickly and easily assemble and disassemble the frac adapter from the wellhead component, such as the casing head. The union-nut coupling may further enable the components to be pressure-tested before the fracturing process is initiated. | 04-14-2011 |
20110088905 | METHOD FOR IMPULSE STIMULATION OF OIL AND GAS WELL PRODUCTION - A method for improving liquid injection into a rock formation. The method includes the steps of introducing a gas impulse device into a wellbore in the formation and pumping a pressurized liquid into the wellbore. The method also includes firing the gas impulse device periodically so that the device generates impulses of high pressure compressed gas. The gas expands through the pumped pressurized liquid substantially instantaneously increasing the liquid flow rate into the rock formation, and creates rapid cyclical injected liquid surges into the rock formation with liquid oscillation occurring inside the fractures and/or pores of the formation. The method may be used in regular oil production applications, waterflooding of wells that have ceased to be productive, in preventing lost circulation in oil wells, and in injecting hazardous wastes into rock formations. | 04-21-2011 |
20110094745 | DOWNHOLE PERFORATION TOOL - A propellant assembly for subsurface fracturing and method for using the same are provided. The assembly can include a first tubular member having an annulus formed therethrough; a second tubular member at least partially disposed within the annulus of the first tubular member; one or more tubular propellants housed within the first tubular member, between an inner diameter of the first tubular member and an outer diameter of the second tubular member; and one or more detonating cords housed within the second tubular member, wherein the second tubular member has one or more portions thereof having a reduced wall thickness. | 04-28-2011 |
20110108275 | WELLHEAD ISOLATION PROTECTION SLEEVE - An isolation sleeve extends from an adapter into the bore of a tubing head to isolate high pressure frac fluid from the body of the tubing head. The isolation sleeve may be installed by a running tool that can screw the sleeve onto a packoff bushing located within the tubing head. The running tool can also retrieve the isolation sleeve by unscrewing it from the packoff bushing. | 05-12-2011 |
20110108276 | APPARATUS AND METHOD FOR CREATING PRESSURE PULSES IN A WELLBORE - In accordance with a broad aspect of the present invention there is provided an apparatus for wellbore fluid treatment, comprising: a body with a lower end, an upper end, an exterior surface and an interior surface defining a long bore open at the upper end; an outlet port spaced from the upper end, the outlet port permitting the communication of fluids between the long bore and the exterior surface; and, a die in the long bore between the upper end and the outlet port, the die being substantially immovable within the long bore and having an inner open diameter in which a plug can land to create a seal in the long bore before passing through the inner open diameter. | 05-12-2011 |
20110108277 | Formation Treatment Using Electromagnetic Radiation - A method of treating a subterranean formation includes injecting a magnetically permeable material into the formation and energizing the magnetically permeable material using electromagnetic radiation. The magnetically permeable material reacts to the electromagnetic radiation by producing heat. In some embodiments, a fracturing fluid is made magnetically permeable, injected into the formation to fracture the formation, and heated in response to electromagnetic radiation applied to the magnetically permeable material. In some embodiments, electromagnetically heated material is caused to explode. In some embodiments, the magnetically permeable material is tracked or monitored for fluid or fracture propagation. A system includes a fluid treatment tool ( | 05-12-2011 |
20110114319 | OPEN HOLE STIMULATION WITH JET TOOL - A fracturing method for preferably open hole uses fluid velocity impinging on the wellbore wall to initiate fractures. Telescoping members that extend using nozzles inside them but come out to a distance from the wellbore wall can be used. Fixed nozzles that do not extend are also another option. The nozzles can be eroded or corroded as the fracturing takes place or they can be made of sufficiently durable materials or have coatings to withstand the erosive effects of high velocity slurries pumped to impinge the wellbore wall to initiate fractures. | 05-19-2011 |
20110114320 | STAND-ALONE FRAC LINER SYSTEM - A stand-alone frac liner that allows for fracturing of multiple lateral legs of a multilateral well on a single call out and rig-up of fracturing equipment. Tools and techniques are provided that include setting multiple stand-alone frac liners in multiple lateral legs of the multilateral well. The liners may rest in the legs physically untethered to surface equipment. Thus, a single call out of a frac string tubular and associated equipment may be used to frac the lateral legs in sequence from one leg to the next. This may be achieved without the requirement of removal of the tubular from the well or disconnect of surface fracturing equipment between the lateral fracture applications. Thus, a considerable amount of expenses associated with time and manpower may be saved. | 05-19-2011 |
20110114321 | Open/Close Outlet Internal Hydraulic Device - A fluid-driven adapter for a mineral extraction system is provided. The adapter includes a sleeve (e.g., annular piston) that engages a mandrel disposed in a wellhead component and moves in an axial direction in response to fluid pressure. The adapter moves the mandrel between a first position and a second position to open or close passages in the wellhead component. The adapter includes a lock ring that moves in response to fluid pressure and that locks the adapter to a wellhead assembly to prevent axial movement of the adapter. Methods of operation are also provided. | 05-19-2011 |
20110120718 | Simulating Subterranean Fracture Propagation - Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to simulating subterranean fracture propagation. A subterranean formation model representing rock blocks of a subterranean formation is received. The subterranean formation model is used to predict a response of each rock block to one or more forces acting on the rock block during an injection treatment for the subterranean formation. The predicted responses of the rock blocks may include, for example, a fracture, a rotation, a displacement, a dilation of an existing fracture, and/or another type of response. In some implementations, an injection treatment may be designed for a subterranean formation based on the predicted response of the rock blocks. | 05-26-2011 |
20110120719 | PROPPANTS FOR HYDRAULIC FRACTURING TECHNOLOGIES - The invention is directed to systems and methods for forming and using proppant particles having desirable attributes. | 05-26-2011 |
20110127038 | METHOD OF HYDRAULICALLY FRACTURING A FORMATION - A method of hydraulically fracturing a formation comprises controlling a pump rate during hydraulic fracturing of the first section of the horizontal well bore during a first period to break down the formation while reducing pick up of sand positioned in the well bore; during a subsequent second period to pick up the sand positioned in the well bore generally at a rate at which the formation will accept the sand; and, during a subsequent third period to fracture the formation. | 06-02-2011 |
20110127039 | SYSTEM, METHOD, AND APPARATUS FOR ACID FRACTURING WITH SCALE INHIBITOR PROTECTION - A method for treating a subterranean formation includes forming a treatment fluid including a carrier fluid, a solid acid-precursor, and a solid scale inhibitor. The solid acid-precursor includes a material that forms an acid at downhole conditions in the subterranean formation. The method further includes adding a solid acid-responsive material into the treatment fluid, where the solid acid-responsive material enhances formation of acid from the solid acid-precursor in acidic conditions. The method includes performing an acid fracture treatment and inhibiting scale formation within the subterranean formation. The solid scale inhibitor allows for long-term scale inhibition after the treatment. | 06-02-2011 |
20110139456 | Controlled Fracture Initiation Stress Packer - A method for selective placement, initiation and propagation of a hydraulically induced fracture in an open wellbore. | 06-16-2011 |
20110146994 | Methods of Fracturing An Openhole Well Using Venturi Section - Methods of fracturing a well can include the steps of: (A) obtaining a fracturing job design having at least one treatment interval; (B) running a tubular string into the treatment interval; (C) before or after the step of running, forming one or more tubular string openings in the tubular string, wherein after the step of running, the one or more tubular string openings are positioned in the treatment interval; (D) except for the axial passageway of the tubular string, blocking at least 86% of the nominal cross-sectional area of the treatment interval that is between one of the ends of the treatment interval and the axially closest of the one or more tubular string openings, and, except for the axial passageway of the tubular string, leaving unblocked at least 4% of the nominal cross-sectional area of the treatment interval; and (E) pumping a fracturing fluid through the one or more tubular string openings at a rate and pressure sufficient to initiate at least one fracture in the subterranean formation surrounding the treatment interval. | 06-23-2011 |
20110146995 | METHODS OF FRACTURING A WELL USING VENTURI SECTION - Methods of fracturing a well can include the steps of: (A) obtaining a fracturing job design having at least one treatment interval; (B) running a tubular string into the treatment interval; (C) before or after the step of running, forming one or more tubular string openings in the tubular string, wherein after the step of running, the one or more tubular string openings are positioned in the treatment interval; (D) except for the axial passageway of the tubular string, blocking at least 86% of the nominal cross-sectional area of the treatment interval that is between one of the ends of the treatment interval and the axially closest of the one or more tubular string openings, and, except for the axial passageway of the tubular string, leaving unblocked at least 4% of the nominal cross-sectional area of the treatment interval; and (E) pumping a fracturing fluid through the one or more tubular string openings at a rate and pressure sufficient to initiate at least one fracture in the subterranean formation surrounding the treatment interval. | 06-23-2011 |
20110155377 | JOINT OR COUPLING DEVICE INCORPORATING A MECHANICALLY-INDUCED WEAK POINT AND METHOD OF USE - A system and method using liner joints, pup joints, couplings, or similar components incorporating a mechanically-induced weak point to access targeted subterranean rock formations. More particularly, the mechanically-induced weak point may comprise a machined weakness, blow-out plug, burst disc, soluble plug, or the like. The mechanically-induced weak point may be adapted to burst at a predetermined blow-out pressure differential. Alternatively, the soluble plug may be manufactured of soluble material adapted to selectively dissolve in certain solutions. | 06-30-2011 |
20110162849 | Method and System for Determining Formation Properties Based on Fracture Treatment - A method and system for determining formation properties based on a fracture treatment that may include collecting data from a fracture treatment for a well. A flow regime of the fracture treatment is determined based on the data. Formation properties may be determined based on the flow regime and the data. | 07-07-2011 |
20110174490 | SYSTEM AND METHOD FOR PERFORMING A FRACTURE OPERATION ON A SUBTERRANEAN FORMATION - A system and method for performing a fracture operation on a well site having a subterranean formation with a reservoir therein is provided. The method involves measuring at least one seismic wave before and after stimulating the subterranean formation, comparing the seismic waves measured before the stimulation of the subterranean formation to the seismic waves measured after stimulation of the subterranean formation, and determining at least one fracture parameter of the subterranean formation from the compared seismic waves. | 07-21-2011 |
20110174491 | BOTTOM HOLE ASSEMBLY WITH PORTED COMPLETION AND METHODS OF FRACTURING THEREWITH - A ported completion and method for use in fracturing multi-zone wells. A casing assembly having a plurality of casing lengths and one or more collars positioned so as to couple together the casing lengths. The collars may be a tubular body having an inner flow path, one or more fracture ports configured to provide fluid communication between an outer surface of the collar and the inner flow path, one or more valve holes intersecting the fracture ports, one or more valve vent holes positioned to provide fluid communication between the valve holes and the inner flow path, and one or more valves positioned in the valve holes for opening and closing the fracture ports. The valves are configured to open when a pressure differential is created between the fracture ports and the valve vent holes. The valve vent hole may be an annulus around the perimeter of the tubular body. | 07-21-2011 |
20110186297 | APPLICATIONS OF SMART FLUIDS IN WELL SERVICE OPERATIONS - Smart fluid compositions and methods of use in the well service operations. | 08-04-2011 |
20110192605 | Degradable Polymers for Hydrocarbon Extraction - The present disclosure is directed degradable polymers. The polymers are solid when maintained under substantially dry conditions at a temperature of up to about 90 degrees C. When contacted with water at a temperature of up to about 90 degrees C., however, the polymers initially remain solid for a period of up to about 6 to about 24 hours, then depolymerize to provide a liquid having a viscosity of from about 1 to about 200,000 centipoise after a period of time from about 8 hours to about 3 days and then further depolymerizes to water-soluble components after a period of time at least about 3 days. Also disclosed are sand screen coatings made with the polymers and hydraulic and acid fracturing methods using the polymers. | 08-11-2011 |
20110192606 | Degradable Polymers for Hydrocarbon Extraction - The present disclosure is directed degradable polymers. The polymers are solid when maintained under substantially dry conditions at a temperature of up to about 90 degrees C. When contacted with water at a temperature of up to about 90 degrees C., however, the polymers initially remain solid for a period of up to about 6 to about 24 hours, then depolymerize to provide a liquid having a viscosity of from about 1 to about 200,000 centipoise after a period of time from about 8 hours to about 3 days and then further depolymerizes to water-soluble components after a period of time at least about 3 days. Also disclosed are sand screen coatings made with the polymers and hydraulic and acid fracturing methods using the polymers. | 08-11-2011 |
20110198087 | Blasting Lateral Holes From Existing Well Bores - A system for blasting lateral holes in the formation around a well bore, the well bore containing production casing and production tubing inside the producting casing. The system includes: a coiled tubing system including a first pump for pumping under pressure cutting fluid; coiled tubing for inserting into the production tubing; a flexible hose having a first end attached to the bottom end of the coiled tubing; a jetting nozzle attached to a second end of the flexible hose; and a deflection shoe adapted for attaching to the bottom of the production tubing. The system further comprises a centering system for centering the coiled tubing within the production tubing; a fluid transport system comprising a second pump and tubing adapted for pumping circulating fluid through the production casing; and a flow-back system comprising tubing adapted for receiving spent cutting fluid out of the production casing. | 08-18-2011 |
20110198088 | TECHNIQUE OF FRACTURING WITH SELECTIVE STREAM INJECTION - A technique facilitates enhanced hydrocarbon recovery through selective stream injection. The technique employs a system and methodology for combining a fracturing technique and application of selective injection streams. The selective injection streams are delivered to select, individual subterranean layers until a plurality of unique subterranean layers are fractured to enhance hydrocarbon recovery. | 08-18-2011 |
20110198089 | METHODS TO REDUCE SETTLING RATE OF SOLIDS IN A TREATMENT FLUID - The invention discloses a method of treating a subterranean formation of a well bore, comprising: providing a treatment fluid comprising a carrier fluid, proppant, a viscosifying agent and a viscosifier material, wherein the viscosifier material is inactive in a first state and is able to increase viscosity of the treatment fluid when in a second state; introducing the treatment fluid into the wellbore; and, allowing the treatment fluid to interact with a trigger able to activate the viscosifier material from first state to second state. | 08-18-2011 |
20110203799 | Open Hole Fracing System - A method of producing petroleum from at least one open hole in at least one petroleum production zone of a hydrocarbon well comprising the steps of locating a plurality of sliding valves along at least one production tubing; inserting the plurality of sliding valves and the production tubing into the at least one open hole; cementing the plurality of sliding valves in the at least one open hole; opening at least one of the cemented sliding valves; removing at least some of the cement adjacent the opened sliding valves without using jetting tools or cutting tools to establish at least one communication path between the interior of the production tubing and the at least one petroleum production zone; directing a fracing material radially through the at least one sliding valve radially toward the at least one production zone; producing hydrocarbons from the at least one petroleum production zone through the plurality of the sliding valves the cement adjacent to which has been removed. | 08-25-2011 |
20110214868 | Clean Viscosified Treatment Fluids and Associated Methods - Treatment fluids comprising an aqueous base fluid, a viscosifying agent, and a compliant dual-functional additive are provided. The present invention provides methods of using the treatment fluids in subterranean formations. One example of a suitable method includes providing a fracturing fluid comprising an aqueous base fluid, a viscosifying agent, and a compliant dual-functional additive that acts as a fluid loss control agent and a breaker and introducing the fracturing fluid into at least a portion of a subterranean formation at a rate and pressure sufficient to create or enhance at least one or more fractures in the subterranean formation. | 09-08-2011 |
20110214869 | Active Seismic Monitoring of Fracturing Operations - A method for managing a fracturing operation. In one implementation, the method may include positioning a seismic source and at least one seismic receiver near a hydrocarbon reservoir; pumping a fracturing fluid into a well bore of the hydrocarbon reservoir such that the fracturing fluid may include an additive that enhances acoustic impedance between the fracturing fluid and subsurface formations in which the hydrocarbon reservoir is located; performing a seismic survey with the seismic source and the at least one seismic receiver during the fracturing operation; and identifying locations of the fracturing fluid within subsurface formations in which the hydrocarbon reservoir is located. | 09-08-2011 |
20110220361 | Method and Materials for Proppant Fracturing With Telescoping Flow Conduit Technology - Acid-soluble plugs may be employed within telescoping devices to connect a reservoir face to a production liner without perforating. Such technology eliminates formation damage and debris removal associated with perforating, as well as reducing risk and time. The plugs may provide enough resistance to enable the telescoping devices to extend out from the production liner under hydraulic pressure. The plugs may then be dissolved in an acidic solution, which may also be used as the hydraulic extension fluid. After the plugs are substantially removed from the telescoping devices, the reservoir may be hydraulically fractured using standard fracturing processes. | 09-15-2011 |
20110220362 | Method and Materials for Proppant Flow Control With Telescoping Flow Conduit Technology - Porous objects, such as porous balls, may be employed within telescoping devices to control proppant flowback through a completed well during production. The telescoping devices may connect a reservoir face to a production liner without perforating. Acid-soluble plugs initially disposed within the telescoping devices may provide enough resistance to enable the telescoping devices to extend out from the production liner under hydraulic pressure. The plugs may then be dissolved in an acidic solution, which may also be used as the hydraulic extension fluid. After the plugs are substantially removed from the telescoping devices, the reservoir may be hydraulically fractured using standard fracturing processes. The porous balls may then be inserted into the telescoping devices to block proppant used in the fracturing process from flowing out of the reservoir with the production fluids. | 09-15-2011 |
20110240295 | CONVERTIBLE DOWNHOLE ISOLATION PLUG - A downhole tool that is capable of isolating communication pressure from below the set downhole tool, and is capable of being converted to a frac plug is provided. The downhole tool includes a packer with a ball seat defined therein. A plug is disposed at a lower end of the downhole tool to isolate the upper well from the lower well. A sealing ball is carried with the packer into the well by a setting tool. The movement of the sealing ball away from the ball seat is limited by isolation of the sealing ball from the lower well. A rod is disposed through the downhole tool contacting the plug. The rod is partially disposed in the ball seat, preventing the sealing ball from sealing. When the packer is set, flow within the well is isolated, thereby allowing treatment of the well above the packer. With the application of sufficient pressure, the sealing ball applies force to the rod which shears the plug from within the tool. The tool is converted to a standard frac plug. | 10-06-2011 |
20110240296 | Methods Relating to Improved Stimulation Treatments and Strengthening Fractures in Subterranean Formations - Of the many methods provided herein, one method comprises: providing at least one fracture in a subterranean formation that comprises tight gas, a shale, a clay, and/or a coal bed; providing a plasticity modification fluid that comprises an aqueous fluid and an alkaline embrittlement modification agent; placing the plasticity modification fluid into the fracture in the subterranean formation; and embrittling at least one fracture face of the fracture to form an embrittled fracture face. | 10-06-2011 |
20110247824 | AUTOMATIC STAGE DESIGN OF HYDRAULIC FRACTURE TREATMENTS USING FRACTURE HEIGHT AND IN-SITU STRESS - A method for treating a subterranean formation comprising measuring mechanical properties of a formation comprising Young's modulus, Poisson's ratio, and in-situ stress; determining formation fracture height based on the mechanical properties; estimating number and location of hydraulic fractures based on the determining; identifying hydraulic fracturing treatment stages based on the estimating; and performing hydraulic fracturing treatments in the stages. A method for treating a subterranean formation comprising measuring mechanical properties of a formation comprising Young's modulus, Poisson's ratio, and in-situ stress; determining a target zone based on the mechanical properties; estimating number and location of hydraulic fractures based on the determining; identifying hydraulic fracturing treatment stages based on the estimating; and performing hydraulic fracturing treatments in the stages. | 10-13-2011 |
20110259593 | Method of over-pressured well fracturing with periodic shock waves - Fractures are initiated or extended into earth formations from a well by providing pressured fluid in said wellbore at pressures exceeding the fracture gradient pressure of said formation and by generating a cyclic shock waves. Periodic shock waves applied simultaneously with a high pressured fluid on a formation increases the length of fractures/cracks in the formation. | 10-27-2011 |
20110265998 | METHOD FOR HYDRAULIC FRACTURING OF A LOW PERMEABILITY SUBTERRANEAN FORMATION - A fracturing fluid containing proppant particles is injected into a fracture made in a low-permeability subterranean formation, providing a turbulent flow of the fluid in the fracture during injection. This allow to increase a fracture conductivity after its closure by means of preventing transverse migration of proppant particles within the fracture and the reduction of their setting rate. | 11-03-2011 |
20110272159 | HYDRAULIC FRACTURE HEIGHT GROWTH CONTROL - A method is given for creating a fracture, in a subterranean formation, that has a fluid flow barrier at the top, at the bottom, or at both the top and the bottom. The method is applied before or during a conventional hydraulic fracturing treatment and is used to limit undesired vertical growth of a fracture out of the productive zone. A lower-viscosity pad fluid is used to initiate the fracture; a higher-viscosity fluid containing barrier particles is then injected; a lower-viscosity particle-free fluid is then injected to promote settling (or rising) of the barrier particles and to finger through the slug of barrier particles and cut it into an upper and lower portion. If the barrier is to be at the bottom of the fracture, the barrier particles are denser than the fluids; if the barrier is to be at the top of the fracture, the barrier particles are less dense than the fluids. Optionally, between the barrier transport stage and the subsequent lower-viscosity stage, there may be a stage of a higher viscosity particle-free fluid that pushes the barrier particles farther into the fracture. To provide both upper and lower particles in one treatment, the pad stage may be of higher-viscosity, or the barrier particles may include particles less dense than, and more dense than, the fluid. | 11-10-2011 |
20110278010 | METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT - A tubing string assembly is disclosed for fluid treatment of a wellbore. The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off. The tubing string can also be used where a ported tubing string is required to be run in a pressure tight condition and later is needed to be in an open-port condition. | 11-17-2011 |
20110284228 | Increasing the Viscosity of Viscoelastic Fluids - In hydrocarbon recovery applications, viscoelastic surfactant (VES) gelled fluids may be preheated to a temperature that will increase viscosity of the VES gelled fluid. The preheated VES gelled fluid retains at least a portion of its preheated viscosity when cooled such as by introduction into a low temperature condition. In an embodiment, the VES gelled fluid may be a drilling fluid, completion fluid, or fracturing fluid, and the low temperature condition may be an offshore operation, an operation in a locality having a cold climate, and/or a shallow oil, gas, or both land-based operation where the formation temperature is 120° F. or less. The surfactant in the VES gelled fluid may be one or more of an amine, amine salt, quaternary ammonium salt, betaine, amidoamine oxide, amine oxide, and combinations thereof. | 11-24-2011 |
20110284229 | SYSTEM, METHOD AND APPARATUS FOR FRACTURE OF WELLS HAVING A LINER - A process for fracturing a lined well uses a packer assembly in a liner string that provides a cement-free segment and interface with the formation. The device has multiple packers with inflatable elements that are run as an integral assembly. After the liner assembly is positioned, cement is circulated into the assembly and wiped from the interior of the liner string into the annulus. Pressure within the liner string is elevated to initiate time delays for the radial inflation of the packer elements. The inflation radially and axially displaces the cement surrounding the elements before the cement sets. Each packer is subsequently opened to expose the frac ports in the packer directly to the formation for frac operations. | 11-24-2011 |
20110284230 | LIQUIFIED PETROLEUM GAS FRACTURING METHODS - Methods of tailoring a hydrocarbon fracturing fluid for a subterranean formation are disclosed. Fluid in the subterranean formation has a fluid temperature. A first critical temperature of a hydrocarbon fluid is adjusted to a critical temperature above the fluid temperature by adding a liquefied petroleum gas component to the hydrocarbon fluid to produce the hydrocarbon fracturing fluid. The liquefied petroleum gas component has a second critical temperature, and the hydrocarbon fluid comprises liquefied petroleum gas. A hydrocarbon fracturing fluid made by these methods are also disclosed. Methods of treating a subterranean formation are also disclosed. A hydrocarbon fracturing fluid is introduced into the subterranean formation, the hydrocarbon fracturing fluid having a critical temperature that is above a fluid temperature of the hydrocarbon fracturing fluid when the hydrocarbon fracturing fluid is in the subterranean formation. The hydrocarbon fracturing fluid is subjected to pressures above the formation pressure. | 11-24-2011 |
20110297382 | PROCESS FOR TRANSPORTING FRACTURE ("FRAC") FLUID ADDITIVES TO OIL AND GAS WELLS UTILIZING ION EXCHANGE RESIN - There is disclosed a process for transporting fracture fluid additives underground to oil and gas wells by attaching a fracture fluid additive to an ion exchange resin and flowing the ion exchange resin underground and thereafter releasing the frac fluid additives from the ion exchange resins and also there is provided the use of an ion exchange resin as a proppant and a frac fluid lubricant. | 12-08-2011 |
20110297383 | Proppant - A proppant comprises a particle and a polycarbodiimide coating disposed on the particle. The polycarbodiimide coating comprises the reaction product of a polymeric isocyanate and a monomeric isocyanate, in the presence of a catalyst. A method of forming the proppant comprises the steps of providing the particle, providing the polymeric isocyanate, providing the monomeric isocyanate, providing the catalyst, reacting the polymeric isocyanate and the monomeric isocyanate in the presence of the catalyst to form the polycarbodiimide coating, and coating the particle with the polycarbodiimide coating. | 12-08-2011 |
20110308803 | Fracturing Method to Reduce Tortuosity - A series of jet nozzles have a telescoping structure designed to impact the borehole wall and initiate a fracture. The nozzles can be extended through fluid pumped through them or with some mechanical force from within the bottom hole assembly. The leading ends of the telescoping assembly can be sharp and hardened to facilitate the initiation of a formation fracture in an open hole. The telescoping structures can be disposed in a single or multiple rows with the circumferential spacing being such that each telescoping structure is designed to cover a target circumferential distance of 45 degrees or less so that jetted fluid from at least one jet will be within 22.5 degrees of a location of maximum formation stresses to reduce the tortuosity of the created fractures from jetting through the nozzles with possible enhancement of the fracturing from added annulus pressure. | 12-22-2011 |
20120000660 | Low temperature hydrocarbon gel - A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (−)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition. | 01-05-2012 |
20120000661 | Low temperature hydrocarbon gel II - A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (−)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition. | 01-05-2012 |
20120000662 | VISCOSITY DIFFERENTIAL FRACTURING FOR ENHANCED APPLICATION OF AMENDMENTS TO GROUND AND GROUNDWATER - Viscosity Differential Fracturing uses pneumatic and hydraulic fracturing techniques and a viscosity differential to achieve greater networking, higher amendment loading rates and more controlled propagation. Pneumatic fracturing is applied first in order to create a dense network of small fractures. This is followed by a hydraulic component using a viscosity adjusted fluid. This material can be injected into these fractures at a significant flow rate and extend/expand these fractures while filling them with the fluid. The significant advantage of VDF versus traditional hydraulic fracturing is that the density of fractures created by the initial gas process leads to an overall greater density of fractures emplaced within the subsurface coupled with the ability to emplace a greater mass of material (e.g. proppants, sand, reactants). | 01-05-2012 |
20120012322 | Auto-production frac tool - Fracturing tools for use in oil and gas wells comprise an inner sleeve, an outer sleeve, a run-in position, and two operational positions. The inner sleeve comprises two ports and two positions. The first port is aligned with a first port of the housing when the tool and sleeve are in the first operational position and is closed when the tool and sleeve are in the run-in position. After performing the first operation, the inner sleeve is returned to its initial position and the outer sleeve is moved placing the tool in the second operational position in which the second port in the inner sleeve is in fluid communication with a second port in the housing. Movement of the tool from the first operational position to the second operational position so that a second operation can be performed is done without the need for an additional well intervention step. | 01-19-2012 |
20120012323 | METHOD OF FRACTURING A SUBTERRANEAN FORMATION AT OPTIMIZED AND PRE-DETERMINED CONDITIONS - Prior to a hydraulic fracturing treatment, ΔSG | 01-19-2012 |
20120012324 | METHOD OF FRACTURING A SUBTERRANEAN FORMATION AT OPTIMIZED AND PRE-DETERMINED CONDITIONS - Prior to a hydraulic fracturing treatment, the requisite median diameter of a proppant, d | 01-19-2012 |
20120018162 | PROPPANT - A proppant comprises a particle and a polyamide imide coating disposed on the particle. A method of forming the proppant comprises the steps of providing the particle, providing the polyamide imide coating, and coating the particle with the polyamide imide coating. | 01-26-2012 |
20120024530 | Increasing Fracture Complexity in Ultra-Low Permeable Subterranean Formation Using Degradable Particulate - A method of increasing the fracture complexity in a treatment zone of a subterranean formation is provided. The subterranean formation is characterized by having a matrix permeability less than 1.0 microDarcy. The method includes the step of pumping one or more fracturing fluids into a far-field region of a treatment zone of the subterranean formation at a rate and pressure above the fracture pressure of the treatment zone. A first fracturing fluid of the one or more fracturing fluids includes a first solid particulate, wherein: (a) the first solid particulate includes a particle size distribution for bridging the pore throats of a proppant pack previously formed or to be formed in the treatment zone; and (b) the first solid particulate comprises a degradable material. In an embodiment, the first solid particulate is in an insufficient amount in the first fracturing fluid to increase the packed volume fraction of any region of the proppant pack to greater than 73%. Similar methods using stepwise fracturing fluids and remedial fracturing treatments are provided. | 02-02-2012 |
20120037373 | DOWNHOLE FRACTURE SYSTEM AND METHOD - A system for fracturing a subterranean formation includes a housing having one or more radially directed ports therein. A valve disposed within the housing proximate the one or more ports. A seat member interactive with the valve to rapidly prevent or substantially retard fluid flow therethrough. A method for initiating a fracture in a subterranean formation is included. | 02-16-2012 |
20120043085 | WELLBORE SERVICE FLUID AND METHODS OF USE - A method is described to predict the composition of favorable bridging agents for a particular situation in which the solution thermodynamics of the chemicals used in the composition of the bridging material is carefully evaluated. Wellbore service fluids are also described that contain materials such as sodium bicarbonate, a material such as a salt containing water in a crystal structure, a material containing at least one boron-oxygen bond, or a non-polymer material having low solubility at low temperatures and high solubility at temperatures close to an expected long-term static bottom hole temperature. The material is provided in aqueous medium in sufficient concentration in the aqueous medium so as to act as a diverting agent during a hydraulic fracturing procedure using the fluid. The wellbore service fluid is pumped through the wellbore and the flow of the fluid is diverted using a plug that subsequently substantially dissolves due to changes in temperature and/or pressure. | 02-23-2012 |
20120055676 | Fluid Loss Control in Viscoelastic Surfactant Fracturing Fluids Using Water Soluble Polymers - Water soluble uncrosslinked polysaccharides may be fluid loss control agents for viscoelastic surfactant (VES) fluids used for stimulation (e.g. fracturing) or well completion in hydrocarbon recovery operations. The VES fluid may further include proppant or gravel, if it is intended for use as a fracturing fluid or a gravel packing fluid, although such uses do not require that the fluid contain proppant or gravel. The water soluble uncrosslinked polysaccharide fluid loss control agents may include, but not be limited to guar gum and derivatives thereof; cellulose and derivatives thereof; propylene glycol alginate; salts (e.g. sodium, potassium, and calcium salts) of iota, kappa, and lambda carrageenan; agar-agar; xanthan gum; and the like; and/or mixtures thereof. The fluid loss control agent may be added to the aqueous viscoelastic treating fluid prior to VES addition, and/or at the same time and/or after the VES is added. | 03-08-2012 |
20120067581 | MECHANISM FOR TREATING SUBTERANEAN FORMATIONS WITH EMBEDDED ADDITIVES - The subject disclosure discloses mechanisms for embedding and controlling multifunctional additives within a polymer matrix for use in oilfield applications. More particularly, the subject disclosure discloses methods of treating a subterranean formation with a polymer matrix comprising one or a plurality of polymers and one or a plurality of functional additives embedded into this polymer matrix. | 03-22-2012 |
20120067582 | APPARATUS AND METHOD FOR FRACTURING PORTIONS OF AN EARTH FORMATION - A method of fracturing an earth formation is disclosed. The method includes: isolating a section of a borehole in the earth formation; introducing a fluid into the isolated section and pressurizing the isolated section from a first pressure to a second pressure; introducing a stress concentration to a borehole wall at least one location in the isolated section when the fluid is at the selected pressure or during the pressurization; and initiating a hydraulic fracture in the earth formation at the at least one location. | 03-22-2012 |
20120067583 | SYSTEM AND METHOD FOR STIMULATING MULTIPLE PRODUCTION ZONES IN A WELLBORE WITH A TUBING DEPLOYED BALL SEAT - A system and method for selectively stimulating a plurality of producing zones in a wellbore in oil and gas wells. The system includes a plurality of modules connected in a string that may be selectively actuated to stimulate a producing zone. Each module may be adapted to engage a tubing run ball seat. After installation of the string within the wellbore, a ball seat may be run into the well and positioned to selectively engage a desired module. The ball seat may be used to open a sleeve of the module permitting the stimulation of the producing zone. After stimulation of the producing zone, the ball seat may be removed from the wellbore rather than needing to drill out the ball seat. The sleeve may include a profile adapted to engage a shifting tool permitting the selective closure of the sleeve after stimulation of the producing zone. | 03-22-2012 |
20120067584 | HYDROCARBON-BASED FLUID COMPOSITIONS AND METHODS OF USING SAME - The present invention provides hydrocarbon-based fracturing fluid compositions comprising a hydrocarbon fluid, proppant, and a small amount of water, and methods of using same. The small amount of water, preferably present at a concentration ranging from about 0.1% to about 5%, causes water bridging between the proppant particulates, causing the proppant particles to agglomerate. The compositions are useful in mitigating proppant flowback in hydraulic fracturing operations and are useful in isolating one or more zones in vertical as well as horizontal wells having multiple pay zones. | 03-22-2012 |
20120067585 | TREATMENT OF SUBTERRANEAN FORMATIONS - A method of preparing and using a subterranean formation stabilization agent. The stabilization agent includes a guanidyl copolymer and may be admixed with a fracturing fluid and optionally brine. The stabilization agent is effective in preventing and/or reducing, for example, clay swelling and fines migration from a subterranean formation contacted with the stabilization agent. | 03-22-2012 |
20120073819 | METHOD AND SYSTEM FOR HYDRAULIC FRACTURING - A fracturing operation is done in open hole without annular space isolation. The annular space is spanned by extendable members that are located behind isolation valves. The extendable members can comprise a biodegradable plug that allows extension of the extendable members by application of pressure. With the plug remained in place, additional pressure can be delivered until at least a portion of the degradable material is pushed onto the surface of the formation. At least a portion of the pushed degradable material provides a seal between the end of the extendable members and the surface of the formation to allow pressure to build until the formation frac gradient is exceeded and the formation is fraced. | 03-29-2012 |
20120080191 | Apparatus and methods for separating sand from well fracturing return water - Apparatus and methods for removing sand or other particulate from well fracturing return water are disclosed. In a sand separator box, a barrier element divides the tank into an upper compartment and a lower compartment. Particulate-laden return water flows through a gas separator and then into the upper compartment of the box. The barrier element allows the water in the upper compartment to pass into the lower compartment while keeping the sand or particulate in the upper compartment. As water accumulates in the lower compartment, it is pumped out to storage tanks or back to the well for reuse. | 04-05-2012 |
20120080192 | HYDRAULIC FRACTURE COMPOSITION AND METHOD - A method for improving the performance of fracturing processes in oil production fields may rely on polymer coated particles carried in the fracturing fluid. The particles may include heavy substrates, such as sand, ceramic sand, or the like coated with polymers selected to absorb water, increasing the area and volume to travel more readily with the flow of fluid without settling out, or allowing the substrate to settle out. Ultimately, the substrate may become lodged in the fissures formed by the pressure or hydraulic fracturing, resulting in propping open of the fissures for improved productivity. | 04-05-2012 |
20120085541 | Method and Apparatus for Hydraulically Fracturing Wells - A mobile plant for supplying hydraulic fracturing service to a well is provided. The plant is particularly useful for wells that require multi-stage fracturing treatments, where the surface equipment may not be moved for longer times than when supplying conventional treatments. Skid-mounted equipment is used, so that the transport vehicle for the equipment can be released after delivery of the equipment to a well site. A method for marketing and executing fracturing treatments is also provided, wherein a customer is provided price data for each item included in the total cost of a fracturing treatment, along with software for calculating the total cost of a treatment to be purchased. The customer may calculate the cost of a treatment from computer-readable storage or over the internet. The customer may also monitor the fracturing treatment remotely and obtain a post-treatment report. | 04-12-2012 |
20120097396 | Bottom hole assembly - A bottom hole assembly is provided. The bottom hole assembly comprises an upper component, a lower component and a telescoping assembly disposed between the upper component and the lower component. | 04-26-2012 |
20120097397 | Fracturing System and Method - A system and method for fracturing a stage of a multiple stage hydrocarbon production well. One embodiment of the system comprises at least one ported sleeve assembly and a flapper assembly positioned downwell of the ported sleeve assembly. Each ported sleeve assembly comprises a ported housing having a plurality of ports disposed radially therethrough; a first sleeve at least partially within the ported housing and moveable between a first position and a second position, wherein in the first position the first sleeve is radially positioned between the plurality of ports and the flowpath. The first sleeve has an exterior surface, a first slot formed in the first exterior surface, and a first engagement surface having a first inner diameter. A first guiding member is fixed relative to the ported housing and positionable within the first slot. A first compression spring positioned between the a upper end of the first sleeve and the ported housing, the first compression spring being under compression when the first sleeve is in the first position. The flapper assembly comprises a flapper seal; a flapper plate rotatable between an opened position and a closed position, wherein in the opened position fluid flow in the downwell direction through the flapper seal is at least substantially unimpeded, and wherein in the closed position the flapper plate is engaged against the flapper seal to at least substantially prevent fluid flow through the flapper seal in the downwell direction; a second sleeve moveable between a first position and a second position, wherein in the first position at least a portion of the second sleeve is radially positioned between the flapper plate and the flowpath, the second sleeve having a second exterior surface, a second slot formed in the second exterior surface, and a second engagement surface having a second inner diameter; a second guiding member fixed relative to the flapper seal and positionable within the second walking jay slot; and a second compression spring positioned between an upper end of the second sleeve and the flapper seal, the second compression spring being under compression when the second sleeve is in the second position. | 04-26-2012 |
20120097398 | Multi-Zone Fracturing Completion - A wellbore completion is disclosed. The wellbore completion comprises a casing assembly comprising a plurality of casing lengths. At least one collar is positioned so as to couple the casing lengths. The at least one collar comprises a tubular body having an inner flow path and at least one fracture port configured to provide fluid communication between an outer surface of the collar and the inner flow path. A length of coiled tubing can be positioned in the casing assembly. The coiled tubing comprises an inner flow path, wherein an annulus is formed between the coiled tubing and the casing assembly. A bottom hole assembly is coupled to the coiled tubing. The bottom hole assembly comprises a fracturing aperture configured to provide fluid communication between the inner flow path of the coiled tubing and the annulus. A packer can be positioned to allow contact with the at least one collar when the packer is expanded. The packer is capable of isolating the annulus above the packer from the annulus below the packer so that fluid flowing down the coiled tubing can cause a pressure differential across the packer to thereby open the fracture port. | 04-26-2012 |
20120103615 | VISCOUS WELLBORE FLUIDS - A wellbore fluid contains a viscosifying polymer in which portions of the polymer are connected through formation of an inclusion complex involving cucurbituril 8 (i.e. CB[8]) as host molecule. The fluid contains guest molecules with first and second guest groups covalently attached wherein at least one of the guest molecules comprises a polymer chain. The CB [8] host and the guest molecules attach together through reception of first and second guest groups within CB[8] host cavities, thereby connecting polymer chains together as a larger, supramolecular polymer and enhancing viscosity of the fluid. Polymer molecules may be synthetic polymers and guest groups may be attached to monomers before polymerization. Alternatively guest groups may be attached to existing polymers which may be polysaccharide. | 05-03-2012 |
20120103616 | Methods of Fracturing Subterranean Formations Using Sulfonated Synthetic Gelling Agent Polymers - Methods of forming one or more fractures in a subterranean formation penetrated by a well bore. The methods generally include providing a treating fluid that comprises water and one or more sulfonated gelling agent polymers, wherein the one or more sulfonated gelling agent polymers comprise a sulfonated synthetic polymer selected from the group consisting of sulfonated polyvinyl alcohol, sulfonated polyacrylate, sulfonated polyacrylamide/acrylic acid copolymers, and any combination thereof; and introducing the treating fluid into the subterranean formation. The treating fluid may be placed at a pressure sufficient to create or extend fractures within the subterranean formation. | 05-03-2012 |
20120118572 | METHODS OF LIMITING LEAK OFF AND DAMAGE IN HYDRAULIC FRACTURES - A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant and a channelant through a wellbore into the fracture, heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands spaced apart by the channelant, and removing the channelant filler material to form open channels around the pillars for fluid flow from the formation through the fracture toward the wellbore. The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include fibers to provide reinforcement and consolidation of the proppant and/or to inhibit settling of the proppant in the treatment fluid. | 05-17-2012 |
20120118573 | Fracturing with Telescoping Members and Sealing the Annular Space - A fracturing operation is done in open hole. The annular space is spanned by telescoping members that are located behind isolation valves. A given bank of telescoping members can be uncovered and the telescoping members extended to span the annular space and engage the formation in a sealing manner. Pressurized fracturing fluid can be pumped through the telescoped passages and the portion of the desired formation fractured. In a proper formation, cementing is not needed to maintain wellbore integrity. In formations that need annular space isolation, the string in a preferred embodiment can have an external material that grows to seal the annular space in lieu of a traditional cementing operation. | 05-17-2012 |
20120118574 | COMPOSITION AND METHOD FOR PRODUCING AN ULTRA-LIGHTWEIGHT CERAMIC PROPPANT - An ultra-lightweight, high strength ceramic proppant made from mixture of naturally occurring clays, preferably porcelain clay, kaolin and/or flint-clay, earthenware clay or other naturally occurring clays having an alumina content between about 5.5% and about 35%. The proppant has an apparent specific gravity from about 2.10 to about 2.55 g/cc, and a bulk density of from about 1.30 to about 1.50 g/cc. This ultra-lightweight proppant is useful in hydraulic fracturing of oil and gas wells, and has greater conductivity than sand at pressures up to 8,000 psi as measured by Stim-Lab after 50 hours and 275° F. on Ohio Sandstone, in the presence of deoxygenated aqueous 2% solution of KCI. | 05-17-2012 |
20120125617 | METHODS TO CREATE HIGH CONDUCTIVITY FRACTURES THAT CONNECT HYDRAULIC FRACTURE NETWORKS IN A WELL - The invention discloses a method of treating a subterranean formation of a well bore, that provides a first treatment fluid; subsequently, pumps the first treatment fluid to initiate a network of low conductivity fractures in the subterranean formation; provides a second treatment fluid comprising a second carrier fluid, a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 μm and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.74; and subsequently, pumps the second treatment fluid to initiate at least one high conductivity fracture in the subterranean formation, wherein the high conductivity fracture has a conductivity higher than the average of the conductivity of the low conductivity fractures and connects the network of the low conductivity fractures. | 05-24-2012 |
20120125618 | METHOD FOR HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATION - The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage comprising injection of fracturing fluid into a borehole, the fluid containing thickeners to create a fracture in the formation; and a second stage comprising introduction of proppant into the injected fracturing fluid to prevent closure of the created fracture, and further, comprising introducing an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids. | 05-24-2012 |
20120125619 | ACTIVE EXTERNAL CASING PACKER (ECP) FOR FRAC OPERATIONS IN OIL AND GAS WELLS - A zonal isolation device ( | 05-24-2012 |
20120132426 | FORMATION TREATMENT SYSTEM AND METHOD - A formation treatment system includes an annulus spanning member having one or more openings therein, the one or more openings incorporating a degradable material. A tubular having one or more ports therein in fluid communication with the one or more openings. A sleeve capable of isolating or communicating the one or more ports with an ID of the tubular. A method for effecting precision formation treatment is included. | 05-31-2012 |
20120152549 | METHOD OF A FORMATION HYDRAULIC FRACTURING - Method of a formation hydraulic fracturing provides injection of a hydraulic fracturing fluid into a borehole with the increase of a fluid flow rate to a working value. During the injection a power consumption of a pump used for the injection is measured continuously. A pump power consumption jump indicates the fracturing fluid flow turbulization in the borehole. | 06-21-2012 |
20120152550 | Method for Inducing Fracture Complexity in Hydraulically Fractured Horizontal Well Completions - A formation servicing system comprising a casing string, a first sleeve system and a second sleeve system, each of the first and second sleeve system being incorporated within the casing string and each comprising a body defining an axial flowbore and comprising one or more ports, a sliding sleeve being movable between (a) a first position in which the sliding sleeve obstructs fluid communication via the one or more ports and (b) a second position in which the sliding sleeve does not obstruct fluid communication via the one or more ports, and a shifting tool operable to shift the first or second sliding sleeves between their first and second positions. | 06-21-2012 |
20120160498 | Concentrated Polymer Systems Having Increased Polymer Loadings and Enhanced Methods of Use - One method described includes the steps of: providing an HPG concentrate having a polymer load of about 2 to about 25% w/v and being present in a worse-than-theta aqueous solvent, the HPG concentrate comprising HPG polymer and an aqueous based solvent that comprises water and a non-solvent for the HPG that is soluble in the aqueous based solvent; and diluting the HPG concentrate with an aqueous fluid to form a subterranean treatment fluid. | 06-28-2012 |
20120160499 | PROCESS FOR TRANSPORTING FRACTURE ("FRAC") FLUID ADDITIVES TO OIL AND GAS WELLS UTILIZING ION EXCHANGE RESIN - There is disclosed a process for transporting fracture fluid additives underground to oil and gas wells by attaching a fracture fluid additive to an ion exchange resin and flowing the ion exchange resin underground and thereafter releasing the frac fluid additives from the ion exchange resins and also there is provided the use of an ion exchange resin as a proppant and a frac fluid lubricant. | 06-28-2012 |
20120160500 | METHODS FOR USING NON-VOLATILE PHOSPHORUS HYDROCARBON GELLING AGENTS - New fluids are disclosed for use in servicing subterranean formations containing oil and gas. In particular, an improved chemical gelling additive for hydrocarbon based fracturing fluids is disclosed having reduce, negligible or no volatile phosphorus at temperatures below about 250° C. | 06-28-2012 |
20120160501 | Zirconium-Based Cross-Linking Composition for Use with High pH Polymer Solutions - A cross-linking composition comprising (a) an aqueous liquid; (b) a pH buffer; (c) a cross-linkable organic polymer; and (d) a solution of a zirconium cross-linking agent comprising the product of contacting a zirconium complex with an alkanolamine and ethylene glycol wherein the mole ratio of alkanolamine to zirconium is 2:1 to 4:1 and the mole ratio of ethylene glycol to zirconium is 1:1 to 10:1. Optionally, water, hydroxyalkylated ethylenediamine, or both are added to the zirconium complex. The cross-linking composition of this invention is useful in oil field applications, for example, for hydraulically fracturing a subterranean formation and for plugging permeable zones or leaks in a subterranean formation. | 06-28-2012 |
20120175121 | Method for Increasing Productivity of Hydraulically Fractured Wells - Method is provided for increase production rate and improving economics of hydraulic fracturing of a well where a fracture can be formed extending a greater distance than the thickness of the pay zone in the well. A settling fluid containing proppant is injected to form a bank or pile of proppant that extends beyond the pay zone. | 07-12-2012 |
20120181030 | GOAT HEAD TYPE INJECTION BLOCK FOR FRACTURING TREES IN OILFIELD APPLICATIONS - The disclosure provides a goat head, as a mixing block, for multiple fluids in oilfield applications, the goat head having a reversing directional flow, mixing portion, wear reduction surfaces, and restricted outlet bore. The goat head provides an underneath approach for piping, reducing the overall height, and mixes the fluids dynamically within the goat head from angled flow paths. The goat head then reverses at least a component of the fluid flow direction that enters the wellbore below the goat head and exits the goat head into the well therebelow. The goat head to contains hardened wear surfaces, including surfaces in specific zones, to resist erosion caused by the reversing directional flow. A restricted outlet bore has a cross-sectional area that is less than the sum of cross-sectional areas of the inlets to assist in creating higher velocity and streamlined flow as the fluid exits the goat head. | 07-19-2012 |
20120181031 | STIMULATING AND SURGING AN EARTH FORMATION - A method of enhancing communication between a wellbore and an earth formation intersected by the wellbore can include forming a fracture in the formation, and permitting communication between the wellbore and a low pressure volume in response to a desired characteristic of the fracture being maximized. Another method of enhancing communication between a wellbore and an earth formation can include forming a fracture in the formation, and then, while pressure in the formation proximate the wellbore is at least about a closure pressure of the fracture, decreasing pressure in the wellbore by exposing the wellbore to a low pressure volume. | 07-19-2012 |
20120181032 | DISINTEGRATING BALL FOR SEALING FRAC PLUG SEAT - A composition for a ball that disintegrates, dissolves, delaminates or otherwise experiences a significant degradation of its physical properties over time in the presence of hydrocarbons and formation heat. The ball may be used in methods and apparatus for hydraulically fracturing a subterranean zone in a wellbore. | 07-19-2012 |
20120181033 | NANOHYBRID PHASE INTERFACES FOR FOAMING IN OIL FIELD APPLICATIONS - Methods of using nanohybrid-containing fluids in a well are provided. The methods include the steps of: (a) forming or providing a well fluid comprising a nanohybrid; and (b) introducing the well fluid into a well. The methods can be used in various applications, such as in drilling, completion, or intervention operations. | 07-19-2012 |
20120199356 | Equipment For Quick Dispersion Of Polyacrylamide Powder For Fracturing Operations - A compact and transportable installation, which is quick to start up and is independent, which allows for dissolution of at high concentration, in very short periods of time, substantial quantities of polyacrylamide powder and which is designed to be used in fracturing operations on gas or oil fields, is provided. The installation successively includes a polymer storage area, a vertical polymer transfer hopper, a supply overflow pipe, a polymer dosing system fed by the pipe, a polymer slicing unit (PSU) type polymer dispersion device, a tank for storage and degassing of polymer in solution, and a volumetric pump to inject and dose the solution of polymer obtained at a suction of a high pressure pump enabling the fracturing operations. | 08-09-2012 |
20120205111 | REINFORCED FRAC TUBING HEAD - A reinforced wellhead member for use during fracing operations. The wellhead member is preloaded at a flange section by creating compressive stresses via a ring that interacts with a tightening nut on a bolt. The bolt is rigidly attached to an adapter which may also be modified to create stresses on the flange of the wellhead member. The induced stresses counter the tensile stresses experienced by the flange during fracing operations, allowing a standard wellhead member to be utilized. | 08-16-2012 |
20120205112 | High Pressure Multistage Centrifugal Pump For Fracturing Hydrocarbon Reserves - The present invention relates to a multistage centrifugal pump design, which has the diffusers, impellors, and a shaft, inserted within a high pressure housing, such that this assembly is fully enclosed within the housing, and the housing is of sufficient strength to be suitable for safe pressure containment of the fluids being pumped. This invention describes the technical details used to reconfigure the multistage centrifugal pump design to increase the discharge pressure capabilities higher than the 6,000 prig of current designs. | 08-16-2012 |
20120217013 | HYDRAULIC FRACTURE DIVERTER APPARATUS AND METHOD THEREOF - A downhole apparatus positionable along a pipe string in a wellbore. The apparatus including a tubular structure having an outermost diameter greater than an outer diameter of an adjacent portion of the pipe string. A first end face facing a flow path in the wellbore, and at least one indentation or protuberance provided on an outer surface of the tubular structure. The at least one indentation or protuberance arranged to cause particulates in slurry within the flow path to collect and remain in a vicinity of the tubular structure. A method of diverting fracturing treatments in a wellbore is also included. | 08-30-2012 |
20120217014 | Wellbore tool for fracturing hydrocarbon formations, and method for fracturing hydrocarbon formations using said tool - A wellbore tool for adapted for insertion into a wellbore extending into a hydrocarbon-containing formation, for fracturing said formation, comprising an elongate, substantially cylindrical tubular member. The tubular member has at a first end external thread means adapted for threadable connection to internal thread means disposed on an end of a wellbore piping member, and at an opposite end having internal thread means. At least a pair of longitudinally-spaced apart radially-outwardly protruding annular rib members are located on an exterior periphery of said tubular member, each of an outer diameter greater than an outer diameter of said wellbore piping member to which said tool is adapted to be threadably coupled. A method for fracturing a hydrocarbon formation using such wellbore tool is further disclosed. | 08-30-2012 |
20120222863 | ALKANESULFONIC ACID MICROCAPSULES AND USE THEREOF IN DEEP WELLS - Alkanesulfonic acid microcapsules and the use thereof as an additive for acidizing applications in carbonatic rock formations, especially for increasing the permeability of underground carbonatic mineral oil- and/or natural gas-bearing and/or hydrothermal rock formations and for dissolving carbonatic and/or carbonate-containing impurities in the production of mineral oil and/or natural gas or geothermal power generation are described. Additionally described is an acidic formulation comprising the inventive microcapsules and the use thereof for the aforementioned purpose, and a corresponding process. | 09-06-2012 |
20120227971 | Sulfates and Phosphates as Allosteric Effectors in Mannanohydrolase Enzyme Breakers - The allosteric effectors, sulfate and phosphate, can be used with mannanohydrolase enzymes to better control the break of gelled fracturing fluids in wellbore operations. | 09-13-2012 |
20120234545 | VALVING SYSTEM, METHOD OF ADJUSTING A VALVE AND METHOD OF FRACING A WELLBORE - A valving system includes a tubular and a sleeve slidably engaged with the tubular having a seat thereon. The sleeve is configured to occlude flow from an inside of the tubular to an outside of the tubular when in a first position, allow flow between an inside of the tubular and an outside of the tubular at a first location upstream of the seat and a second location downstream of the seat when in a second position, and allow flow between an inside of the tubular and an outside at the tubular at the first location and not the second location when in a third position. The valving system also includes a disappearing member in operable communication with the tubular and the sleeve configured to prevent movement of the sleeve to the third position until disappearance thereof. | 09-20-2012 |
20120234546 | SYSTEM AND METHOD FOR FRACTURING A FORMATION AND A METHOD OF INCREASING DEPTH OF FRACTURING A FORMATION - A system for fracturing a formation includes a tubular positionable within a formation borehole having at least one port therethrough configured to provide fluidic communication from inside the tubular to the formation borehole. The system also includes a seal sealably attachable to both the tubular and walls of the formation borehole, a seat in operable communication with the tubular and a member in operable communication with the seat such that movement of the seat relative to the tubular causes the member to engage the walls and provide stress thereto. | 09-20-2012 |
20120234547 | HYDRAULIC FRACTURE DIVERTER APPARATUS AND METHOD THEREOF - An apparatus positionable along a downhole string. The apparatus includes a flexible structure retained on a surface of the string in a first condition. The flexible structure movable by a flow to substantially fill an annular space between the string and a radially positioned structure in a second condition. A method of diverting fracturing treatments in a wellbore is also included. | 09-20-2012 |
20120241157 | SINTERED PARTICLES AND METHODS FOR PRODUCING SINTERED PARTICLES FROM A SLURRY OF AN ALUMINA-CONTAINING RAW MATERIAL - Sintered, substantially round and spherical particles and methods for producing such sintered, substantially round and spherical particles from an alumina-containing raw material and a metal oxide sintering aid. The alumina-containing raw material contains from about 40% to about 55% alumina. Methods for using such sintered, substantially round and spherical particles in hydraulic fracturing operations. | 09-27-2012 |
20120241158 | RADICAL TRAP IN OIL AND GAS STIMULATION OPERATIONS - A method for using a fracture fluid in forming subterranean fractures includes delaying degradation of a polymer in a fracture fluid when the fracture fluid comprises a breaker by combining at least one radical scavenger with the fracture fluid. The mixture for use in a fracture fluid comprises a radical scavenger and a breaker. A method of fracturing a subterranean formation may include providing a fracture fluid comprising a proppant, a polymer, and a breaker and adding a radical scavenger to the fracture fluid. The fracture fluid is supplied to a desired location in the subterranean formation to form at least one fracture where the viscosity of the fracture fluid is maintained. The breaker is then allowed to degrade the polymer and reduce the viscosity of the fracture fluid at a specific time or temperature. | 09-27-2012 |
20120247775 | DOWNHOLE TOOL WITH PUMPABLE SECTION - A downhole tool for use in a well. The tool has a packer assembly and a pumpable plug associated with the packer assembly. The pumpable plug has a diameter greater than the maximum outer diameter of the packer assembly. The pumpable plug may be pumped through a casing having a diameter larger than that for which the packer assembly is designed and will urge the packer assembly through the large diameter casing into a smaller diameter casing for which the packer assembly is designed. | 10-04-2012 |
20120247776 | Hydrocarbon-Based Fracturing Fluid Compositions, Methods Of Preparation And Methods Of Use - The invention describes improved fracturing compositions, methods of preparing fracturing compositions and methods of use. Importantly, the subject invention overcomes problems in the use of mists as an effective fracturing composition particularly having regard to the ability of a mist to transport an effective volume of proppant into a formation. As a result, the subject technologies provide an effective economic solution to using high ratio gas fracturing compositions that can be produced in a continuous (i.e. non-batch) process without the attendant capital and operating costs of current pure gas fracturing equipment. | 10-04-2012 |
20120255735 | WATER HEATING APPARATUS FOR CONTINUOUS HEATED WATER FLOW AND METHOD FOR USE IN HYDRAULIC FRACTURING - A method of hydraulic fracturing of an oil producing formation includes the provision of a heating apparatus which is transportable and that has a vessel for containing water. A water stream of cool or cold water is transmitted from a source to a mixer, the cool or cold water stream being at ambient temperature. The mixer has an inlet that receives cool or cold water from the source and an outlet that enables a discharge of a mix of cool or cold water and the hot water. After mixing in the mixer, the water assumes a temperature that is suitable for mixing with chemicals that are used in the fracturing process, such as a temperature of about 40°-120° F.+ (4.4-48.9° C.+). An outlet discharges a mix of the cool and hot water to surge tanks or to mixing tanks. In the mixing tanks, a proppant and an optional selected chemical or chemicals are added to the water which has been warmed. From the mixing tanks, the water with proppant and optional chemicals is injected into the well for part of the hydraulic fracturing operation. | 10-11-2012 |
20120267112 | WELL SERVICE COMPOSITIONS AND METHODS - A composition for isolating a zone in a wellbore comprising: an aqueous liquid hydrophobic solid particles, and an oil. | 10-25-2012 |
20120273206 | DRY POLYMER MIXING PROCESS FOR FORMING GELLED FLUIDS - Apparatus, methods and systems for preparing a polymer concentrate for treating a formation with slick water systems viscous fluid or a gelled viscous fluid are disclosed. The method includes directing a powdered gel into a vortex mixing chamber, while directing a first portion of a base fluid into the vortex mixing chamber to form partially hydrated fluid concentrate. The partially hydrated fluid concentrate is then sucked or sweep into a main portion of base fluid for form the slick water systems viscous fluid or gelled viscous fluid. | 11-01-2012 |
20120273207 | CHITOSAN AS BIOCIDE IN OILFIELD FLUIDS - The current application discloses fluids and methods for treating a subterranean formation penetrated by a wellbore, such as hydraulic fracturing. In one aspect, there is provided an oilfield fluid comprising chitosan at an amount sufficient to inhibit the growth of bacterial in the oilfield fluid. In another aspect, there is provided a method of preserving an oilfield fluid containing adding chitosan at a concentration that is sufficient to inhibit the growth of bacteria in the oilfield fluid. In a further aspect, there is provided a method of treating a subterranean formation penetrated by a wellbore, comprising preparing a treatment fluid, adding chitosan at a concentration sufficient to inhibit the growth of bacteria in the treatment fluid, introducing the mixture to the subterranean formation, and treating the subterranean formation with the mixture. | 11-01-2012 |
20120279714 | CHEMICAL LINE FLUSH SYSTEMS - A method for performing an oil field service including forming a fluid comprising ammonium salt and exposing an equipment surface to the fluid, wherein the surface retains less residue than if no exposing occurred. A method for preparing for an additional oil field service including forming a fluid comprising ammonium salt, exposing an equipment surface to the fluid wherein the surface retains less residue than if no exposing occurred, and performing an oil field service. | 11-08-2012 |
20120285692 | METHODS OF ZONAL ISOLATION AND TREATMENT DIVERSION - Methods of treating a subterranean formation penetrated by a well bore, by providing a treatment fluid comprising a blend including a first amount of particulates having a first average particle size between about 3 mm and 2 cm and a second amount of particulates having a second average size between about 1.6 and 20 times smaller than the first average particle size or a second amount of flakes having a second average size up to 10 times smaller than the first average particle size; by introducing the treatment fluid into the well bore; and by creating a plug with the treatment fluid. | 11-15-2012 |
20120285693 | CONTROLLED RELEASE BIOCIDES IN OILFIELD APPLICATIONS - Described is a method for treating a subterranean formation penetrated by a wellbore, the method including the introduction of a well treatment fluid containing at least an encapsulated biocide. Once the encapsulated biocide is introduced and after a predetermined period of time, a biocide is released from an encapsulation material and treats the wellbore and the subterranean formation. | 11-15-2012 |
20120292030 | SYSTEM AND METHOD FOR PINPOINT FRACTURING INITIATION USING ACIDS IN OPEN HOLE WELLBORES - Downhole tools for pumping an acid into a wellbore prior to pumping a fracturing fluid comprise a housing and an actuator member disposed therein. The housing comprises a port that is initially placed in fluid communication with an acid so the acid can be pumped into the wellbore and is then placed in fluid communication with a fracturing fluid so the fracturing fluid can be pumped into the same location within the wellbore. The downhole tool may comprise a chamber having the acid disposed therein. Alternatively, the acid can be part of an acid slug disposed at a leading edge of a fracturing fluid being pumped through the downhole tool. | 11-22-2012 |
20120292031 | HYDRAULIC FRACTURING METHODS AND WELL CASING PLUGS - A hydraulic fracturing method includes injecting a fluid containing a transitory binder and filler into a substantially horizontal well casing without any placement apparatus present in the substantially horizontal well casing, the filler containing particles of a solid material. The transitory binder and filler are placed over first perforations in the well casing. The method includes opening second perforations through the well casing, injecting additional fracturing fluid through the substantially horizontal well casing, and forming a plug over and through the first perforations with the transitory binder and filler. | 11-22-2012 |
20120305255 | Method of Treating the Near-Wellbore Zone of the Reservoir - The invention describes a method for treating near-wellbore zones involving the steps of injecting a magnesium metal with a catalyst into the desired area of the formation to be treated. Subsequently, combustive-oxidizing solution (COS) is injected into the zone of the formation to be treated. The COS initially reacts with the magnesium, which in turn initiates a vigorous oxidation reaction of the COS. The reaction gases and heat produced by the COS oxidation reaction are harnessed to enhance the productivity of the well by creating fractures in the treatment zone and by melting of paraffin and resin deposits in the treatment zone. As a final step, acid is injected into the formation to react with the formation thereby further enhancing the porosity of the fractures. In one embodiment, the COS uses ammonium nitrate as the oxidizer, and in another, urea or ethylene glycol may be added as a reaction fuel. | 12-06-2012 |
20130000914 | Through Tubing Expandable Frac Sleeve with Removable Barrier - Thin wall sleeves are inserted into a well and expanded into sealing position to a surrounding tubular. Each sleeve has a ball seat. A zone is perforated after a sleeve is secured in position below the perforations. The ball is dropped onto the seat and pressure is built up to complete the fracturing. After all zones are perforated and fractured, the balls are removed, preferably by dissolving them and the thin walled sleeves are left in the tubular against which they have been expanded. Production can then begin from a selected zone. The objects can be of the same size for each sleeve. The sleeves can be run through tubing and into casing. Acid can be pumped to dissolve the objects. | 01-03-2013 |
20130014952 | TREATMENT OF HYDROCARBON CONTAINING RESERVOIRS WITH ELECTROLYZED WATER - Systems and methods for using one or more electrolyzed aqueous solutions to treat subterranean reservoirs containing hydrocarbons are disclosed herein. In some cases, the methods include using an electrochemical cell to produce electrolyzed acidic water and electrolyzed alkaline water. In such cases, the electrolyzed acidic water or the electrolyzed alkaline water is introduced to the well. While the electrolyzed acidic or alkaline water can be used for a variety of purposes, in some cases, it is used to improve hydraulic fracturing, water flooding, and well stimulation techniques. In some cases, the electrolyzed acidic or alkaline water is mixed with one or more other materials, such as a proppant, a hydraulic fracturing fluid, a polymer, or another additive. Additional implementations are disclosed. | 01-17-2013 |
20130025867 | METHOD OF SLICKWATER FRACTURING - The present invention relates to a method of slickwater hydraulic fracturing of a subterranean formation comprising introducing into a wellbore an aqueous fracturing fluid comprising a nonionic polymer and polyethylene oxide. | 01-31-2013 |
20130025868 | Downhole Actuating Apparatus - A mechanical counting device for actuating a plurality of output devices, the device comprising: linear indexing means adapted to count a plurality of actuating signals and to cause actuation of the output devices when a predetermined number of actuating signals for each output device has been received, wherein the mechanical counting device is adapted to cause actuation of a particular output device when a different predetermined number of actuating signals has been received such that the output devices are sequentially actuable. | 01-31-2013 |
20130032349 | Method Of Fracturing Multiple Zones Within A Well Using Propellant Pre-Fracturing - A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the wellbore. The flow-through passages are arranged into clusters, where the directions of all flow-through passages, which belong to the same cluster, are aligned within a single plane (cluster plane). At least one cluster of flow-through passages is formed in each zone. The clusters within each zone have characteristics different from those of other zones provided by orienting the cluster planes at different angles relative to principal in-situ stresses and by placing them into different locations along the wellbore in each of the two or more zones. A propellant pre-fracturing treatment is then performed in the two or more zones to create initial fractures (pre-fractures) in each of the two or more zones. The fracturing fluid in the fracturing treatment is provided at a pressure that is above the pre-fracture propagation pressure of one of the two or more zones to facilitate fracturing of said one of the two or more zones. The pressure of the fracturing fluid is below the pre-fracture propagation pressure of any other non-treated zones of the two or more zones. The isolating of the treated zone is then performed. The fracturing process is then repeated for at least one or more non-treated zones of the two or more zones. | 02-07-2013 |
20130032350 | Method Of Fracturing Multiple Zones Within A Well - A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the length of a portion of the wellbore. The flow-through passages within each zone have different characteristics provided by orienting the flow-through passages in directions in each of the two or more zones relative to a selected direction to provide differences in fracture initiation pressures within each of the two or more zones. A fracturing fluid is introduced into the wellbore in a fracturing treatment. The fracturing fluid in the fracturing treatment is provided at a pressure that is above the fracture initiation pressure of one of the two or more zones to facilitate fracturing of said one of two or more zones while remaining below the fracture initiation pressure of any other non-fractured zones of the two or more zones. The process is repeated for at least one or more non-fractured zones of the two or more zones. | 02-07-2013 |
20130043030 | PROCESSES FOR FRACTURING A WELL - Processes and systems for fracturing a formation are disclosed. Tools that may be selectively opened and closed are positioned on a tubular liner that in turn is positioned within a subterranean well bore. Separate pairs of packers are also attached to and positioned along the tubular liner so as to straddle each tool. Fracturing fluid is pumped from the surface through the tubular and open tool and past a pair of packers at a temperature and injection rate which causes contraction of the tubular liner. Thereafter, the velocity of the fracturing fluid is sufficient to set the pair of packers adjacent the open tool. Continued pumping of fracturing fluid is directed by the set packers into the adjacent subterranean environs at a pressure sufficient to fracture the subterranean environs. | 02-21-2013 |
20130056212 | PERFORATING STIMULATING BULLET - A method and device for fracturing a subterranean formation by projecting a bullet assembly into the formation and then reacting energetic material within the bullet assembly. The bullet assembly can be part of a charge device that is in a perforating gun. A delay fuse can be included so the energetic material reaction begins after the bullet assembly reaches the end of its travel in the formation. | 03-07-2013 |
20130075099 | Pulse Fracturing Devices and Methods - A pulse fracturing device includes a normally open first valve and a normally closed second valve in a housing. The first valve is configured to close at a predetermined level of hydrodynamic force exerted on the first valve and to open when the force drops below the predetermined level. The first valve, when open, is configured to allow fluid flow out from the housing. The second valve is configured to open at a predetermined pressure within the housing and to close when pressure drops below the predetermined pressure. The second valve, when open, is configured to allow fluid flow out from the housing. | 03-28-2013 |
20130081819 | Breaking pumpable hydrocarbon gels - Where the loss of volatile organics during storage of high gravity oil is minimized by forming a flowable or pumpable gel in the high gravity oil, (and/or condensates and distillates), as they are introduced to a storage vessel, the gel is broken by the addition of a small amount of an amine/formaldehyde reaction product, which may be either a triazine or a mixture of non-triazine reaction products. The previously gelled hydrocarbon may then by more readily moved by draining or pumping into a pipeline. | 04-04-2013 |
20130081820 | HOSTILE ENVIRONMENT STABLE COMPOSITIONS AND DRILLING AND FRACTURING FLUIDS CONTAINING SAME - Foam systems including a surfactant subsystem including one alpha-olefin sulfonic acid or a plurality of alkali metal alpha-olefin sulfonic acid salts and optionally, one ethoxylated alcohol sulfonate or a plurality of ethoxylated alcohol sulfonates, optionally, a pour point depressant subsystem including one glyme or a plurality of glymes and optionally, a corrosion inhibiting subsystem including one corrosion inhibitor or a plurality of corrosion inhibitors, where the system is thermally or heat stable up to 450° F., the system is environmentally benign, the system is capable of producing a foam in an aqueous medium including high amounts of crude oil, the system is efficient at low usage levels and the system is capable of reuse or at least on foam-defoam cycle. Methods for making and using including preparation of the foam systems, drilling, fracturing, completion and producing using the systems in conjunction with a gas. | 04-04-2013 |
20130098621 | FRACTURING SYSTEM - The present invention relates to a fracturing system for fracturing a formation surrounding a well tubular structure, comprising a tubular part to be mounted as a part of the well tubular structure, the tubular part being made of metal, an expandable sleeve made of metal, the sleeve having a wall thickness and surrounding the tubular part, a fastening means for connecting the sleeve with the tubular part, and an aperture in the tubular part or the fastening means. Furthermore, the invention relates to a fracturing method for fracturing a formation surrounding a well tubular structure. | 04-25-2013 |
20130105166 | Methods for Providing Proppant Slugs in Fracturing Treatments | 05-02-2013 |
20130112419 | PROCESS AND PROCESS LINE FOR THE PREPARATION OF HYDRAULIC FRACTURING FLUID - A process and process line is provided for preparing a friction-reduced hydraulic fracturing fluid at a central location which can be readily transported to an oil or gas well in a formation at a well site, comprising: preparing a mixture of polymer and water at the central location by shearing the polymer in the water in a high shear environment to create the friction-reduced hydraulic fracturing fluid; pumping the friction-reduced hydraulic fracturing fluid through a series of pumps and pipelines to the well site; and injecting the hydraulic fracturing fluid into the oil or gas well at a pressure sufficient to cause fracturing of the formation, | 05-09-2013 |
20130118750 | System And Method For Performing Treatments To Provide Multiple Fractures - A method includes initiating a first hydraulic fracture with a first fracture initiation fluid at a first position in a wellbore. The method further includes positioning a high-solids content fluid (HSCF) in the first hydraulic fracture. The method further includes initiating a second hydraulic fracture with a second fracture initiation fluid at a second position in the wellbore, where the second position is not hydraulically isolated from the first position. The method further includes positioning the HSCF in the second hydraulic fracture. | 05-16-2013 |
20130118751 | FORMATION FRACTURING - A method described herein involves lowering a tool into a wellbore adjacent a subterranean formation; inflating a first packer on the tool to initiate a fracture of the formation; inflating second and third packers on the tool to seal an interval of the wellbore containing the fracture, the first packer being between the second and third packers; and pumping fluid into the interval to increase a pressure in the interval to propagate the fracture. | 05-16-2013 |
20130126174 | WATER CONVERSION SYSTEM - A mobile water conversion system including an electro-coagulation stage, a microfiltration stage, a cooling stage, a nanofiltration stage, and a reverse osmosis stage. The electro-coagulation stage receives heated input water, such as geothermal brackish water, and reduces total suspended solids. The microfiltration stage removes suspended solids and dissolved solids. The cooling stage provides cooled brine water. The nanofiltration stage removes hardness from the cooled brine water to provide sodium brine water. A portion of sodium brine water is provided to circulating water in the cooling stage. The reverse osmosis stage reduces sodium content and provides fresh water suitable for a specified purpose, such as fracking. | 05-23-2013 |
20130126175 | Synthetic Sweet Spots in Tight Formations by Injection of Nano Encapsulated Reactants - Provided is a method and composition for the in-situ generation of synthetic sweet spots in tight-gas formations. The composition can include gas generating compounds, which upon activation, exothermically react to generate heat and gas. The method of using the composition includes injecting the composition into a tight-gas formation such that upon activation, the heat and gas are generated, resulting in the formation of fractures and microfractures within the formation. | 05-23-2013 |
20130133891 | Equalization Valve - An equalization valve that allows for continuous equalization of pressure above and below a sealing element is disclosed. The equalization valve includes a housing having a fluid passageway therethrough. The fluid passageway is fluidically continuous across a sealing element disposed on a mandrel. The mandrel is part of a sealing assembly that contains the sealing element. The equalization valve includes a valve plug moveable from an open position in which the valve plug is not engaged with the sealing mandrel to a seated position in which the valve plug is seated against the sealing mandrel. The valve plug defines a conduit, the conduit that provides for a minimal fluid flow across the sealing element, when the valve plug is seated against the sealing mandrel. The sealing element remains sealingly engaged against the wellbore while the plug is in the seated position and while minimal fluid flow is occurring. The conduit may be provided as part of an insert, the insert being positionable within the valve plug. The equalization valve further includes an outer port for permitting lateral flow of fluid from the tubing string to the annulus defined between the tubing string and the wellbore. The equalization valve may be part of a downhole tool assembly which includes the equalization valve and a sealing assembly. | 05-30-2013 |
20130140031 | SYSTEM AND METHOD FOR PERFORMING OPTIMIZED DOWNHOLE STIMULATION OPERATIONS - A method of performing a stimulation operation for an unconventional wellsite having natural fractures and hydraulic fractures. The method involves providing at least one treatment parameter with a corresponding objective function value and performing a fracture operation based on the treatment parameter. The fracture operation involves defining a treatment schedule, conducting a hydraulic fracture operation, and estimating production. The objective function value is based on an objective function. The method also involves modifying the treatment parameter and performing the fracture operation based on the modified treatment parameter. The modified treatment parameter has a corresponding modified objective function value based on the objective function. The method continues with optimizing the treatment operation by comparing the objective function value with the modified objective function value, and repeating the modifying and optimizing for new modified treatment parameters until convergence about a desired outcome whereby an optimized parameter is defined at convergence. | 06-06-2013 |
20130146291 | Ball Seat Milling and Re-fracturing Method - A well that has a plurality of sliding sleeves used to originally fracture multiple zones with balls of increasing size dropped on balls seats to sequentially open ports for fracturing in a direction toward the well surface is refractured. The method involves using a bottom hole assembly (BHA) that has a fluid motor driven mill that mills out ball seats and has with it a ported sub and a resettable packer. Once the lowermost ball seat is milled out a ball is dropped into the BHA to isolate the fluid motor and open a ported sub below a resettable packer. The dropped ball also enables a collet to latch an open sleeve to give a surface signal that the BHA is located properly for packer deployment so that the refracturing can begin through the coiled tubing string that can support the BHA or in a surrounding annular space. | 06-13-2013 |
20130146292 | HETEROGENEOUS PROPPANT PLACEMENT IN A FRACTURE WITH REMOVABLE EXTRAMETRICAL MATERIAL FILL - A method of injecting well treatment fluid including proppant and proppant-spacing filler material through a wellbore into the fracture, heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands spaced apart by the material, and removing the filler material to form open channels around the pillars for fluid flow from the formation through the fracture toward the wellbore. The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The filler material can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include extrametrical materials to provide reinforcement and consolidation of the proppant and/or to inhibit settling of the proppant. | 06-13-2013 |
20130146293 | Methods for Unconventional Gas Reservoir Stimulation With Stress Unloading For Enhancing Fracture Network Connectivity - The invention discloses a method for use in a wellbore in a tight gas shale formation, comprising: providing a hydraulic fracturing fluid to initiate at least a fracture in the shale; injecting a treatment fluid in the fracture to at least partially destabilize and remove the shale; and repeating the step of fracturing the shale. | 06-13-2013 |
20130146294 | Method for Controlling Loss of Drilling Fluid - Methods for drilling and treating for lost returns continuously while drilling are provided. High fluid loss drilling fluid is used, along with particulate material that forms an immobile mass in hydraulic fractures to prevent their growth. The particulate material may be selected based on the predicted size of a hydraulic fracture, based on particle size to minimize fines, based on specific gravity to attain high solids content for a selected fluid density, and/or based on permeability of the particles to attain a high spurt loss. | 06-13-2013 |
20130153233 | METHOD OF FRACTURING SUBTERRANEAN FORMATIONS WITH CROSSLINKED FLUID - Subterranean formations, such as tight gas formations, may be subjected to hydraulic fracturing by introducing into the formation a fracturing fluid of an aqueous fluid, a hydratable polymer, a crosslinking agent and proppant. The fracturing fluid is prepared in a blender and then pumped from the blender into the wellbore which penetrates the formation. The fluid enters the reservoir through an entrance site. The apparent viscosity of the fluid decreases distally from the entrance site such that at least one of the following conditions prevails at in situ conditions: | 06-20-2013 |
20130161013 | Corrosion Resistant Fluid End for Well Service Pumps - The present invention relates to the use of corrosion resistant alloys in fluid ends to prolong the life of a well service pump. One embodiment of the present invention provides a method of providing a fluid end that has a corrosion resistant alloy having a fatigue limit greater than or equal to the tensile stress on the fluid end at maximum working pressure in the fluid end for an aqueous-based fluid; installing the fluid end in a well service pump; and pumping the aqueous-based fluid through the fluid end. | 06-27-2013 |
20130161014 | AMINE ADDUCTS, DERIVATIVES THEREOF, METHODS FOR MAKING SUCH ADDUCTS AND DERIVATIVES, AND METHODS FOR USING SUCH ADDUCTS AND DERIVATIVES - An amine adduct is made by (1) forming an addition intermediate by heating a mixture comprising at least one diene and at least one unsaturated fatty acyl compound, and reacting the addition intermediate with a diamine to form the amine adduct, or by (2) reacting at least one unsaturated fatty acyl compound with at least one diamine to form an amine intermediate, and heating a mixture of the amidoamine intermediate and at least one diene to form the amine adduct, or by (3) reacting at least one unsaturated fatty tertiary amine compound with at least at least one diene to form the amine adduct. A surfactant composition is derived from the amine adduct and is particularly useful in a method for enhancing the recovery of oil from a reservoir having a production wellbore, comprising introducing an aqueous flooding fluid into the reservoir at one or more locations different from the location of the production wellbore, said fluid comprising the surfactant composition and recovering the oil through the production wellbore. | 06-27-2013 |
20130161015 | APPARATUS AND METHOD FOR FRACTURING A WELL - Apparatus and methods are provided for fracturing a well in a hydrocarbon bearing formation. The apparatus can include one or more valve sub-assemblies assembled into a tubing string inserted into an unlined well. The valve sub-assembly can include a sliding piston initially pinned in place to seal off ports that provide communication between the interior of the tubing string and a production zone of the formation. A ball can be inserted into a tubing string and moved along the tubing string by injected pressurized fracturing fluid until the ball sits on a valve seat of a valve sub-assembly coupled to the sliding piston to close off the tubing string below the valve. The force of the fluid forces the piston downwards to shear off the pins and open the ports. Fracturing fluid can then exit the ports to fracture the production zone of the formation. | 06-27-2013 |
20130168098 | Apparatus and Method for Fracturing a Well - An apparatus and method is provided for fracturing a well in a a hydrocarbon bearing formation. The apparatus can include a valve subassembly that is assembled with sections of casing pipe to form a well casing for the well. The valve subassembly includes a sliding piston that is pinned in place to seal off ports that provide communication between the interior of the well casing and a production zone of the formation. A dart can be inserted into the well casing and propelled by pressurized fracturing fluid until the dart reaches the valve subassembly to plug off the well casing below the valve subassembly. The force of the fracturing fluid against the dart forces the piston downwards to shear off the pins and open the ports. The fracturing fluid can then exit the ports to fracture the production zone of the formation. | 07-04-2013 |
20130168099 | WELLBORE FRAC TOOL WITH INFLOW CONTROL - An apparatus for fluid treatment of a borehole, the apparatus allowing initial outflow injection of fluids into a wellbore in which it is installed and then is actuable to allow fluid inflow control. The apparatus includes: a tubular body, a first port and a second port opened through the wall of the tubular body, the second port having a fluid inflow controller positioned to control the flow of fluid into the tubular body through the port, a sliding sleeve valve in the tubular body moveable from (i) a first position closing the first port and the second port to (ii) a second position closing the second port and permitting fluid flow through the first port and to (iii) a third position closing the first port and permitting fluid flow through the second port; a sleeve actuator for actuating the sliding sleeve valve to move from the first position to the second position in response to a force applied thereto; a releasable lock for locking the sliding sleeve valve in the first position and selected to maintain the sliding sleeve valve in the first position after the force is removed; and a lock release mechanism configured to actuate the releasable lock to release the sliding sleeve valve to move into the third position. | 07-04-2013 |
20130175038 | INTEGRAL FRACTURING MANIFOLD - A fracturing system with an integral fracturing manifold is provided. In one embodiment, the system includes a plurality of fracturing trees and an integral fracturing manifold may be directly coupled to each of the plurality of fracturing trees. In some embodiments, the integral fracturing manifold may accommodate spacing and elevation differences between the fracturing trees. Additional systems, devices, and methods are also disclosed. | 07-11-2013 |
20130175039 | ADJUSTABLE FRACTURING SYSTEM - An adjustable fracturing system is provided. In one embodiment, the system includes a fracturing manifold and a fracturing tree. A fluid conduit is coupled between the fracturing manifold and the fracturing tree to enable receipt of fracturing fluid by the fracturing tree from the fracturing manifold. Further, the fluid conduit is an adjustable fluid conduit that allows an operator to vary a dimension of the fluid conduit to facilitate coupling of the fluid conduit between the fracturing manifold and the fracturing tree. Additional systems, devices, and methods are also disclosed. | 07-11-2013 |
20130180721 | Downhole Fluid Treatment Tool - A treatment device and method for use in delivering fluid treatment to a wellbore is described. The device includes a first treatment housing and a second treatment housing, mounted along a tubing string, each of the first and second housing defining a fluid pathway which is continuous with the tubing string and each of the first and second treatment housing defining a port for fluid communication between the tubing string and the wellbore. Fluid flow through the first housing may be selectively blocked by delivery of a deformable ball to the tubing string to seal against a ball seat disposed between the first and second housing. While the first pathway is blocked, fluid may be selectively delivered to the wellbore through the port on the second treatment housing. The ball may be removed from the ball seat by application of hydraulic pressure in excess of the deformation threshold of the ball, forcing the ball to deform and pass through the seat, re-opening the fluid flow through the first treatment housing and allowing for treatment through port defined in the first housing. | 07-18-2013 |
20130180722 | TECHNIQUE OF FRACTURING WITH SELECTIVE STREAM INJECTION - A technique facilitates enhanced hydrocarbon recovery through selective stream injection. The technique employs a system and methodology for combining a fracturing technique and application of selective injection streams. The selective injection streams are delivered to select, individual subterranean layers until a plurality of unique subterranean layers are fractured to enhance hydrocarbon recovery. | 07-18-2013 |
20130192837 | METHOD OF INCREASING EFFICIENCY IN A HYDRAULIC FRACTURING OPERATION - Multiple zones of a subterranean formation penetrated by a multi-zoned completed well may be fractured by pumping into one or more zones an acidizing solution at or above the fracturing pressure of the subterranean formation. After fractures are created or enhanced in the formation, a displacement fluid is pumped into the formation to farther advance the acidizing solution into the fractures. | 08-01-2013 |
20130192838 | NON-HYDRAULIC FRACTURING SYSTEMS, METHODS, AND PROCESSES - Methods and systems of fracturing subterranean formations to are provided comprising pumping metacritical phase natural gas into a subterranean formation to create or extend one or more fissures in the formation. Methods and systems may further comprise maintaining or increasing pressure of the metacritical phase natural gas in the formation by pumping more metacritical phase natural gas into the fissures to hold the fissures open. Methods and systems may further comprise delivering a proppant into the subterranean formation. Disclosed methods and systems may be used to extract hydrocarbons from subterranean formations without the use of liquids. | 08-01-2013 |
20130206415 | Method and Apparatus for Modifying a Cargo Container to Deliver Sand to a Frac Site - A cargo container is modified to carry a fracing proppant such as sand from a quarry or source to the frac site. Openings are cut in the top and bottom of a cargo container and hydraulically operated sliding doors are placed there under. A hopper module with the walls being inclined to approximately the angle of repose for the proppant is installed inside the cargo container. The hopper module is sealed inside the cargo container so that a proppant enters through the top opening at the quarry and flows out through the bottom opening at the fracing site. | 08-15-2013 |
20130220618 | METHOD AND SYSTEM FOR CLEANING FRACTURE PORTS - A method of stimulating or cleaning a fracture port and the proximate well bore area, includes the steps of inserting a downhole assembly on coiled tubing into a production tubing string comprising a fracture port. The downhole assembly includes a fluid pulse generator and jetting tool which is positioned adjacent the fracture port, and fluid is pumped through the tool to create fluid pressure pulses and jet streams of fluid. The method and apparatus does not require isolating the fracture port to be cleaned with packers or seals. | 08-29-2013 |
20130220619 | Methods For High Solid Content Fluids in Oilfield Applications - The invention discloses a method for use in a wellbore, comprising: providing a first fluid comprising at least a first type of particulate material having a first average particle size and a second type of particulate material having a second average particle size, wherein first average particle size is smaller than second average particle size; providing a second fluid comprising at least a third type of particulate material having a third average particle size and a fourth type of particulate material having a fourth average particle size, wherein third average particle size is smaller than fourth average particle size; and introducing the first fluid into the wellbore subsequently followed by introducing the second fluid into the wellbore, wherein the third average particle size is substantially equal to the second average particle size. | 08-29-2013 |
20130228337 | FLUID INJECTION IN LIGHT TIGHT OIL RESERVOIRS - A method of producing hydrocarbons from a tight formation includes injecting a fluid, such as a miscible gas, and retrieving the hydrocarbons. The fluid may be injected into an injection fracture via and retrieved from a recovery fracture. The injection fracture and recovery fractures may be in the same wellbore, the injection fracture may be in a first wellbore and the recovery fracture in a second wellbore, or the injection fracture and recovery fracture may be in a first wellbore and additional injection or recovery fractures may be in a second wellbore. | 09-05-2013 |
20130233559 | Surfactant Additives for Stimulating Subterranean Formation During Fracturing Operations - The present invention relates to surfactant additives useful for restoring permeability of a subterranean formation and methods of use thereof. One embodiment of the present invention provides a method that includes providing a fracturing fluid having an aqueous fluid, and a microemulsion surfactant, wherein the fracturing fluid is substantially free of an organic solvent; and placing the fracturing fluid into a subterranean formation at a rate sufficient to create or enhance at least one fracture in the subterranean formation. | 09-12-2013 |
20130233560 | REMOTELY OPERATED SYSTEM FOR USE IN HYDRAULIC FRACTURING OF GROUND FORMATIONS, AND METHOD OF USING SAME - The purpose of this invention is to improve on the safety and to allow more efficient production of subterranean formation during fracturing operations with a reduced down-time, minimal supervision and maintenance expense by utilizing remotely operated ground valves having metal-to-metal, gate and seat seal design operable to maintain a dual sided flow and pressure control. Use of a new 45-degree flow-T connector of a Zipper Manifold in combination with the system described is particularly useful for reducing erosion with proppant-laden fracturing fluid. | 09-12-2013 |
20130233561 | METHOD OF FRACING A WELLBORE - A method of fracing a wellbore includes sealing a tubular within a wellbore at two locations defining an annular space thereby, opening at least two ports providing fluidic communication between an inside of the tubular and the annular space, flowing fluid from inside the tubular to the annular space through a first of the at least two ports, flowing fluid from the annular space to inside of the tubular through a second of the at least two ports, closing the second of the at least two ports, and pressuring the annular space through the first of the at least two ports. | 09-12-2013 |
20130240211 | Method for Inducing Fracture Complexity in Hydraulically Fratured Horizontal Well Completions - A method of inducing fracture complexity within a fracturing interval of a subterranean formation comprising characterizing the subterranean formation, defining a stress anisotropy-altering dimension, providing a wellbore servicing apparatus configured to alter the stress anisotropy of the fracturing interval of the subterranean formation, altering the stress anisotropy within the fracturing interval, and introducing a fracture in the fracturing interval in which the stress anisotropy has been altered. A method of servicing a subterranean formation comprising introducing a fracture into a first fracturing interval, and introducing a fracture into a third fracturing interval, wherein the first fracturing interval and the third fracturing interval are substantially adjacent to a second fracturing interval in which the stress anisotropy is to be altered. | 09-19-2013 |
20130248189 | System and Method for Fracturing of Oil and Gas Wells - This disclosure relates to an improved system and method for fracturing a well. In one embodiment, the system can comprise a base pipe comprising an insert port capable of housing a stop ball partially within the chamber of it, and a sliding sleeve. The sliding sleeve can comprise a first sleeve with an in inner surface. That inner surface can comprise a void. The first sleeve can be maneuverable into two positions. In the first position, the void can rest on a surface of the base pipe not comprising an insert port. Such positioning can prevent a stop ball from exiting the chamber of the base pipe. In the second position, the void can rest over an insert port. Such positioning can allow the stop ball to the chamber of said base pipe and to enter the void. | 09-26-2013 |
20130248190 | System and Method for Controlling Flow through a Pipe using a Finger Valve - Described herein is a system and method for controlling flow in a pipe string using a finger valve. Specifically, the disclosure describes a finger valve comprising a base pipe and a sliding sleeve. The base pipe can comprise a finger port, one or more fingers; and one or more hinges, each of the hinges connecting one of the fingers to the base pipe. The sliding sleeve can comprise a sliding sleeve having a first sleeve with in inner surface comprising a void and a depressor. The first sleeve can be positionable in a first position and a second position. In the first position, the depressor can push the one or more fingers into a closed position. In the second position, the void can rest at least one of the one or more fingers, allowing the at least one of the one or more fingers to move into an open position. | 09-26-2013 |
20130248191 | METHODS OF FORMING HIGH-POROSITY FRACTURES IN WEAKLY CONSOLIDATED OR UNCONSOLIDATED FORMATIONS - Methods of fracturing a subterranean formation penetrated by a well bore, that include the steps of placing a fracturing fluid comprising a first stabilizing substance into the subterranean formation at or above a pressure sufficient to create or enhance at least one fracture in the subterranean formation; placing a treatment fluid comprising a gel carrier fluid, degradable solid-free gel bodies, and solids-laden gel bodies into the fracture such that the solids-free gel bodies and the solids-laden gel bodies form multiple packs within the fracture; and, breaking the gel carrier fluid and allowing the solid-free gel bodies to degrade to create a high porosity propped fracture formed of the solids-laden gel bodies wherein the propped fracture has a porosity of at least about 40%. | 09-26-2013 |
20130248192 | MULTIZONE AND ZONE-BY-ZONE ABRASIVE JETTING TOOLS AND METHODS FOR FRACTURING SUBTERRANEAN FORMATIONS - One or more fluid-jetting subs having jet ports and a packer element are incorporated into a completion string for deployment into a wellbore for perforation and treatment operations. The packer element, being either an inflatable packer element or a compressible packer element, is downhole of the jet ports and is fluid pressure actuated. Pressure in the completion string is maintained at a pressure higher than in the annulus thereabout to keep the packer set for sealing the annulus therebelow while fluid is delivered through the jet ports for perforating or treatment such as fracturing. | 09-26-2013 |
20130255953 | METHOD AND APPARATUS FOR PREPARING FRACTURING FLUIDS - A method and system are provided for preparing a fracturing fluid for a fracture treatment in a subterranean formation using different types of fluids. A first mixture, formed with a consistent quality fluid and proppant, is combined with a second mixture, formed with an inconsistent quality fluid, to create a combined fracturing fluid. Each of the first and second mixtures may be pressurized and combined for use in one or more stages of a fracture treatment. The consistent quality fluid may comprise a new or high quality fluid and the inconsistent quality fluid may comprise a low quality fluid, such as fluid recovered or recycled from a previous fracturing treatment. Chemicals may be added to one or both mixtures. Quality measurements may be obtained for the second mixture. Independent monitoring and control of system allow for the preparation of a fracturing fluid with predetermined qualities. | 10-03-2013 |
20130292122 | Polymer Dissolution Equipment Suitable For Large Fracturing Operations - Compact and transportable equipment that can be used for fracturing operations on gas or oil fields, includes, successively, a silo for storing polymer in powder form, a feed hopper of a polymer metering device, a device for metering out the powder polymer, a device for dispersing and grinding the polymer, and at least two volumetric pumps enabling the injection and metering of the polymer solution obtained in the mixer used for supplying at least one high-pressure fracturing pump. | 11-07-2013 |
20130292123 | Degradable Balls for Use in Subterranean Applications - Degradable balls for downhole use may include an incompliant degradable polymer and a compliant filler material, the incompliant degradable polymer having an elastic modulus of about 2 GPa or greater, and the compliant filler material having an elastic modulus of less than about 2 GPa. Such degradable balls may be useful in sealing segments of a wellbore and actuating wellbore tools. | 11-07-2013 |
20130292124 | HYDRAULIC FRACTURING - Method and apparatus for forecasting curving of an hydraulic fracture to be initiated in the vicinity of one or more previously placed fractures along a bore hole. Physical parameters that will affect the growth of the hydraulic fracture are received by a dimensionless parameter deriver which derives a series of dimensionless parameters as groupings of the physical parameters that are selected as similarity parameters with respect to the shape of the hydraulic fracture path. The dimensionless parameters may comprise a dimensionless viscosity parameter, a dimensionless confining stress parameter, a coefficient of friction parameter and a dimensionless deviatoric stress parameter. A comparator sequentially compares the determined dimensionless parameters with predetermined threshold values to provide an indication as to possible curving of the hydraulic fracture. | 11-07-2013 |
20130299174 | METHOD AND SYSTEM FOR FRACKING AND COMPLETING WELLS - A method for fracking and completing a well having a well bore through a formation includes packer jack fracking the formation using a packer to form a packer fractured formation moving the packer to seal the packer fractured formation, and hydraulically fracturing the packer fractured formation by injecting a fracking fluid through the packer. These steps can then be repeated through successive intervals of the formation. To complete a new well, a perforated liner can be placed in the well bore to direct the fracking fluid into the packer fractured formation. To complete an existing or a new well having a cemented liner the packer jack fracking step can also be used to break apart the liner and form at least one opening to provide a flow path for the fracking fluid. A system includes a perforated liner and a packer configured to fracture and seal successive intervals. | 11-14-2013 |
20130306321 | LIQUEFIED INDUSTRIAL GAS BASED SOLUTION IN HYDRAULIC FRACTURING - The present invention is a cryogenic subterranean fracturing fluid, comprising a liquefied industrial gas and a first additive. The liquefied industrial gas may be liquefied carbon dioxide, liquefied nitrogen, or a blend of the two. The liquefied industrial gas mixture should be substantially free of water. In this context, substantially free of water means less than 10% water by volume, or preferably less than 5% water by volume. In addition to the first additive, a proppant may be added to the fracturing fluid. In addition to the biocide and/or proppant additional additives may be added to the liquefied industrial gas as required. Non-limiting examples of such additives include ozone, a friction reducer, an acid, a gelling agent, a breaker, a scale inhibitor, a clay stabilizer, a corrosion inhibitor, an iron controller, an oxygen scavenger, a surfactant, a cross-linker, a non-emulsifier, a Ph Adjusting agent, or any combination thereof. | 11-21-2013 |
20130306322 | SYSTEM AND PROCESS FOR EXTRACTING OIL AND GAS BY HYDRAULIC FRACTURING - A fracturing system is described. The system includes an electric motor-driven pumping sub-system, configured to pump a pressurized fracturing fluid into at least one wellbore, under high pressure conditions sufficient to increase the downhole pressure of the wellbore, to exceed that of the fracture gradient of the solid matter surrounding the wellbore. The system also includes an electric power generation sub-system that provides energy to the pumping sub-system. The electric power generation sub-system includes a multitude of electric motors that are powered by a single electrical feed source. A related process for extracting hydrocarbons from a reservoir rock formation by the fracturing operation is also described. | 11-21-2013 |
20130312972 | System To Heat Water For Hydraulic Fracturing - Generally, a system for hydraulic fracturing of a geologic formation. Specifically, a transportable heating apparatus and method for the production of heated water for use in hydraulic fracturing of a geologic formation. | 11-28-2013 |
20130312973 | Methods for Drilling and Stimulating Subterranean Formations for Recovering Hydrocarbon and Natural Gas Resources - A method of drilling and stimulating subterranean formations is provided that allows a well operator to determine in real time if a fracture treatment has been successful, and whether the fracture treatment composition is sufficient for subsequent fracking. The method involves placing fracture treatments into a wellbore while the drilling operation is still under way. The fracture treatment is bounded in the open hole on one side by the current end of the hole and on the other side by a temporary pack off isolation fluid that has been introduced to the well by way of pumping down the existing drill string or by pumping down a separate frac string. The objective is to place the frac in the reservoir and flow it back very quickly after placement, thus increasing the chances of flowing back harmful formation damaging materials and increasing the relative productivity of the newly placed fracture treatment. | 11-28-2013 |
20130312974 | Controlling hydrogen sulfide production in oilfield operations - Fluids (e.g., fracturing fluids or stimulation fluids) with inhibition material for inhibiting bacteria from producing hydrogen sulfide and, in one aspect, wherein such fluid is a fracturing fluid, and methods of the use of such fluids. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b). | 11-28-2013 |
20130319677 | WELL COMPLETION - The present invention relates to a completion assembly for running into a borehole in a formation through a well head or blowout preventer, comprising a casing string having a first end and a second end, and a drill pipe having a first end and a second end and extending through the well head or the blowout preventer and being releasably connected at the first end with the casing string. Furthermore, the invention relates to a completion method for completing a casing string. Moreover, the invention relates to a completion kit for making a completion assembly according to the present invention. | 12-05-2013 |
20130327529 | FAR FIELD FRACTURING OF SUBTERRANEAN FORMATIONS - A method of fracturing a subterranean formation includes providing a fracture field with multiple fractures. An explosive is injected into a selected fracture and detonated to increase permeability of the subterranean formation surrounding the selected fracture. The explosive is configured to detonate at a quench distance of less than a thickness of the selected fracture. | 12-12-2013 |
20130327530 | Composition and Method to Replace Polysacharides in Hydraulic Fracturing - A method to reduce the amount of gelling agent utilized in hydraulic fracturing fluids in the presence of a relatively high concentration of brine. | 12-12-2013 |
20130341029 | HIGH STRAIN RATE METHOD OF PRODUCING OPTIMIZED FRACTURE NETWORKS IN RESERVOIRS - A system of fracturing a geological formation penetrated by a borehole. At least one borehole is drilled into or proximate the geological formation. An energetic charge is placed in the borehole. The energetic charge is detonated fracturing the geological formation. | 12-26-2013 |
20140000899 | Fracturing System and Method for an Underground Formation Using Natural Gas and an Inert Purging Fluid | 01-02-2014 |
20140008071 | Wellbore Servicing Assemblies and Methods of Using the Same - An apparatus for servicing a wellbore comprising a housing defining an axial flowbore and comprising high-pressure ports, high-volume ports, and a mandrel slidably positioned within the housing, the mandrel defining a mandrel axial flowbore and being alternatingly movable from a first position to a second position and to a third position, wherein, when the mandrel is in the second position, a route of fluid communication via the high-pressure ports is provided and a route of fluid communication via the high-volume ports is obstructed, wherein, when the mandrel is in the third, position, a route of fluid communication via the high-volume ports is provided, and wherein the apparatus is transitionable from the second position to the third position without communicating an obturating member to the apparatus, without removing an obturating member from the apparatus, or combinations thereof. | 01-09-2014 |
20140008072 | ELECTRICAL FRACTURING OF A RESERVOIR - A device is provided for fracturing a geological hydrocarbon reservoir including two packers defining between them a confined space in a well drilled in the reservoir; a pump for increasing the pressure of a fluid in the confined space; an apparatus for heating the fluid; at least one pair of two electrodes arranged in the confined space; and an electric circuit for generating an electric arc between the two electrodes, the circuit including at least one voltage source connected to the electrodes and an inductance between the voltage source and one of the two electrodes. The device permits improved fracturing of the reservoir. | 01-09-2014 |
20140008073 | ELECTRICAL AND STATIC FRACTURING OF A RESERVOIR - A method is provided for fracturing a geological hydrocarbon reservoir, including the static fracturing of the reservoir by hydraulic pressure, and the electrical fracturing of the reservoir by generating an electric arc in a well drilled into the reservoir. This enables the improved fracturing of the reservoir. | 01-09-2014 |
20140014347 | FORMATION TREATMENT SYSTEM - A treatment system including a first tubular having at least one port therein. A valve member is disposed with the first tubular and operatively arranged to control fluid flow through the at least one port. A second tubular is disposed radially within the first tubular and terminates at an end opening into an interior passage of the first tubular for enabling a treatment media to be supplied through the second tubular into the first tubular, and through the at least one port when the at least one port is open. A seal assembly is disposed between the first and second tubulars for fluidly sealing an annulus formed between the first and second tubulars from the end of the second tubular. A tool is disposed with the second tubular for controlling operation of the valve member. | 01-16-2014 |
20140020900 | ADJUSTABLE ISOLATION SLEEVE ASSEMBLY FOR WELL STIMULATION THROUGH PRODUCTION TUBING - A fracturing system includes a fracturing spool that mounts onto a wellhead assembly for injecting fracturing fluid into a well beneath the wellhead assembly. An isolation sleeve is included with the fracturing system that couples to the fracturing spool and extends into the wellhead to isolate and protect portions of the wellhead assembly from the fracturing fluid. A seal is between the isolation sleeve and bore of the wellhead assembly, which is threaded to the isolation sleeve. Manipulating the threaded connection between the isolation sleeve and seal selectively positions the isolation sleeve to designated axial positions within the wellhead assembly. | 01-23-2014 |
20140020901 | HIGH PRESSURE ISOLATION SYSTEM FOR WELL STIMULATION THROUGH PRODUCTION TUBING - A fracturing system includes a fracturing spool that mounts onto a wellhead assembly for injecting fracturing fluid into a well beneath the wellhead assembly. The fracturing system includes an isolation sleeve and fracturing spool. The isolation sleeve inserts in an axial bore of the fracturing spool, and has a lower end that extends into the wellhead to isolate and protect portions of the wellhead assembly from the fracturing fluid. A groove in an inner surface of the fracturing spool receives an annular seal for sealing between the isolation sleeve and fracturing spool. Injecting a viscous fluid into the groove energizes the seal, and blocks high pressure fracturing fluid from flowing between the isolation sleeve and fracturing spool. | 01-23-2014 |
20140027120 | METHOD AND APPARATUS FOR HYDRAULIC FRACTURING - A method of treating a consolidated formation having a wellbore therein. Tubing including a stress relieving tool is provided in the wellbore. An interval in the wellbore wherein the stress relieving tool is located is isolated. The stress relieving tool is actuated to apply mechanical force radially to an uncased inner diameter surface of the wellbore for providing a reduced stress zone of the formation. Fluid pressure is increased in the wellbore to fracture the formation within the reduced stress zone. | 01-30-2014 |
20140041877 | Well Treatment Fluids Containing An Ylide Or A Vitamin B And Methods Of Using The Same - Viscosifying polymers are effectively degraded during a well treatment operation with an ylide breaker or a vitamin B cofactor. The vitamin B cofactor is an ylide, vitamin B | 02-13-2014 |
20140048270 | Methods and Devices for Hydraulic Fracturing Design and Optimization: A Modification to Zipper Frac - The present invention provides a method of optimizing the placement of fractures along deviated wellbores by identifying at least two parallel lateral wellbores in a subterranean formation comprising at least a first wellbore and a second wellbore; introducing a first fracture and a second fracture in the first wellbore; introducing a third fracture in the second wellbore between the first fracture and the second fracture, wherein the third fracture extends to an intermediate area between the first two fractures and alters the stress field in that region; and forming one or more complex fractures extending from the first fracture, the second fracture, the third fracture or a combination thereof to form a complex fracture network. | 02-20-2014 |
20140048271 | SLIDING SLEEVE VALVE AND METHOD FOR FLUID TREATING A SUBTERRANEAN FORMATION - A sliding sleeve valve for wellbore operations includes: a tubular body including a tubular wall including an outer surface and an inner surface defining an inner bore; a fluid port extending through the tubular wall and providing fluidic communication between the outer surface and the inner bore; a sliding sleeve in the inner bore slidably moveable between a port closed position and a port open position, the sliding sleeve including a ball seat on which a plug is landed to move the sleeve from the port closed position to the port open position; an initial sleeve holding mechanism for holding the sliding sleeve in the port closed position, the initial sleeve holding mechanism selected to be overcome by landing a plug on the ball seat to move the sliding sleeve; and a second sleeve holding mechanism for holding the sliding sleeve in the port closed position after the sliding sleeve is reclosed from the port open position to the port closed position, the second sleeve holding mechanism selected to be overcome by landing a plug on the ball seat to move the sliding sleeve. | 02-20-2014 |
20140054041 | APPARATUS FOR CREATING BIDIRECTIONAL ROTARY FORCE OR MOTION IN A DOWNHOLE DEVICE AND METHOD OF USING SAME - A method for fracturing a wellbore in a formation, including positioning one or more bidirectional rotary sleeves on tubular members into the wellbore; engaging a unidirectional rotary source in a first position with a first bidirectional rotary sleeve of the one or more bidirectional rotary sleeves; operating the unidirectional rotary source to rotate the first bidirectional rotary sleeve in a first rotational direction to open at least one port in the first bidirectional rotary sleeve for providing an open fluid pathway between the first bidirectional rotary sleeve and the formation; pumping fluid through the tubular members and through the opened port to fracture the formation; engaging the unidirectional rotary source in a second position with the first bidirectional rotary sleeve; and operating the unidirectional rotary source to rotate first bidirectional rotary sleeve in a second rotational direction to close the at least one port in the first bidirectional rotary sleeve. | 02-27-2014 |
20140060842 | ELECTROSTATIC PARTICULATE COATING METHODS AND APPARATUS FOR FRACTURING FLUIDS - Disclosed is a method and apparatus for making up fracturing fluid with coated proppant. The method applies opposed electrical charges to the proppant and its coating to create a uniform coating without extensive mechanical mixing, and additionally, the method applies opposed electrical charges to the coated proppant and fracturing fluid to enhance mixing. | 03-06-2014 |
20140069652 | Well Treatment Device, Method, and System - A down-hole treatment tool including a tool body having a bore therethrough, a treatment port orifice disposed on the body, a sliding sleeve within the bore of the body. A constant-volume annular chamber, in isolation from the inner bore and the environment outside the body, provides a debris-free environment for locking the sleeve. A dissolvable treatment port cover provides protection of the treatment port until operation of the treatment port is needed. The treatment port cover and lubrication ports enable lubrication of the sleeve and inner bore of the body without risk of contamination by debris. | 03-13-2014 |
20140069653 | METHOD FOR TRANSVERSE FRACTURING OF A SUBTERRANEAN FORMATION - Techniques for fracturing a subterranean formation penetrated by a wellbore are provided. The subterranean formation has vertical and horizontal stresses applied thereto. The wellbore has a near wellbore stress zone thereabout. The method involves drilling the wellbore along a drilling path (the wellbore having a vertical portion and a horizontal portion), creating at least one 360-degree perforation in the subterranean formation about the horizontal portions of the wellbore, and fracturing the formation by injecting a fluid into the 360-degree perforations. The 360-degree perforations extend about the wellbore a distance beyond the near wellbore stress zone and at least twice a diameter of the wellbore starting from an axis of the wellbore. A direction of the 360-degree perforation is transverse to the wellbore axis. | 03-13-2014 |
20140069654 | Downhole Tool Incorporating Flapper Assembly - A downhole tool incorporating a sleeve assembly with an actuatable element, such as the seat of a plug-and-seat combination, and a seal assembly, such as a flapper seal assembly. The sleeve assembly is movable between a first position, in which the seal assembly is opened and inhibited from closing by contact with the sleeve assembly, and a second position in which the seal assembly is closed. Upon closing of the flapper assembly, the downhole tool may withstand higher pressures with reduced risk of failure to maintain a pressure differential across the tool. | 03-13-2014 |
20140076571 | DOWNHOLE TOOLS HAVING NON-TOXIC DEGRADABLE ELEMENTS - Downhole tools for use in oil and gas production which degrade into non-toxic materials, a method of making them and methods of using them. A frac ball and a bridge plug comprised of polyglycolic acid which can be used in fracking a well and then left in the well bore to predictably, quickly, and safely disintegrate into environmentally friendly products without needing to be milled out or retrieved. | 03-20-2014 |
20140083708 | Systems and Methods for Reclosing a Sliding Side Door - Disclosed are systems and methods for mechanically reclosing a hydraulically actuated sliding side door of a sleeve assembly. One sleeve assembly includes a housing defining one or more flow ports, a sliding sleeve arranged within the housing and movable between a closed position and an open position and back to the closed position, wherein, when in the closed position, the outer sleeve occludes the one or more flow ports, and, when in the open position, the one or more flow ports are exposed. A piston is movably arranged within a piston bore defined in the housing, and a locking mechanism is arranged within the piston bore and configured to engage the piston with the sliding sleeve, thereby allowing the piston to move the sliding sleeve to the open position. | 03-27-2014 |
20140090848 | COMPOSITIONS AND METHODS FOR TREATING A WELL PENETRATING A SUBTERRANEAN FORMATION - A method for treating a well penetrating subterranean formations comprising injecting into the well a composition comprising a high temperature stabilizer composition which comprises at least one mineral-reactive compound; wherein at least a part of the well is at a temperature of at least 120° C. is provided. Also provided is a composition for treating a well comprising a mineral-reactive compound. | 04-03-2014 |
20140096969 | COMPOSITIONS AND METHODS FOR PREVENTING EMULSION FORMATION - A method is described for treating a formation adjacent a subterranean well with a treatment fluid composition imparted with emulsion formation prevention properties. A microemulsion additive is mixed into a treatment fluid component to form a volume of a treatment fluid composition having emulsion formation prevention properties. The microemulsion additive is composed of a mixture solvent, a co-solvent, a mutual solvent, a non-emulsifier, a non-ionic surfactant, a non-ionic co-surfactant, alcohol, an emulsifying surfactant, and an aqueous fluid. The volume of the fluid composition is then injected into the subterranean well and contacts the formation, whereby the microemulsion additive in the treatment fluid volume acts to prevent emulsion formation in the formation. | 04-10-2014 |
20140096970 | MULTI-ZONE FRACTURING AND SAND CONTROL COMPLETION SYSTEM AND METHOD THEREOF - A multi-zone fracturing and sand control completion system employable in a borehole. The system includes a casing. A fracturing assembly including a fracturing telescoping unit extendable from the casing to the borehole and a frac sleeve movable within the casing to access or block the fracturing telescoping unit; and, an opening in the casing. The opening including a dissolvable plugging material capable of maintaining frac pressure in the casing during a fracturing operation through the telescoping unit. Also included is a method of operating within a borehole. | 04-10-2014 |
20140102708 | Selective Fracturing System - A method of fracturing a formation surrounding a wellbore comprises the steps of:
| 04-17-2014 |
20140102709 | Tool and Method for Fracturing a Wellbore - A fracturing tool is used for hydraulically fracturing multiple stages of a well bore with treatment fluid. The tool includes a tubular housing retaining a longitudinally sliding sleeve which moves between a first position concealing fluid ports in the tubular housing and a second position in which the ports are uncovered. A deformable seat disposed in the sliding sleeve cooperates with an actuating member which is directed downwardly through a fracturing string locating a plurality of tools therein associated with respective stages of an isolated zone to sequentially uncover the fluid ports. Disposed in the fluid ports are burst plugs arranged to open when exposed to a threshold pressure. All uncovered burst plugs of the tools within the isolated zone can thus be sequentially uncovered and then opened when exposed to the threshold pressure to permit the treatment fluid to exit from the housing into the surrounding well bore. | 04-17-2014 |
20140124207 | Production Enhancement Method for Fractured Wellbores - Wellbores are fractured by setting open hole packers on a string with access through valves on the string between the set packers. Setting the packers creates wellbore stress so that fractures tend to preferentially form near the packers regardless of the orientation of the borehole. When the fracturing is done and the well is put on production some of the proppant comes back into the wellbore and packs around the packers with solids that can be produced from the formation carried by flowing fluids. An annular passage is created near the packer to allow produced fluids to bypass the packed proppant and other solids to get into the production string. A screen protects the passage from clogging so that production is enhanced. | 05-08-2014 |
20140124208 | LIQUIFIED PETROLEUM GAS FRACTURING SYSTEM - A fracturing system for a well, in which a stream of LPG, a mixture of propane and butane, is injected into the well at frac pressure. Proppant is supplied into the LPG stream, and carried by the LPG mix into the formation. Inert gas such as nitrogen is used for purging system components of LPG, and to help protect against risk of explosion. Nitrogen may also be added to the LPG mix during a frac of shale gas or coal gas formations. | 05-08-2014 |
20140144642 | Downhole Valve Assembly and Methods of Using the Same - A wellbore servicing system including a work string and a valve tool defining an flowbore, wherein the valve tool is transitionable from a first mode to a second mode, from the second mode to a third mode, and from the third mode to a fourth mode, wherein the valve tool transitions from the first mode to the second mode upon an application of pressure to the flowbore of at least a threshold pressure, wherein the valve tool transitions from the second mode to the third mode upon a dissipation of pressure from the flowbore to not more than the threshold pressure, wherein, in the first mode, the valve tool allows fluid communication via the flowbore in a first direction and disallows fluid communication in a second direction, and wherein, in the second, and third modes, the valve tool allows fluid communication in both the first and second directions. | 05-29-2014 |
20140151051 | CO2 FRACTURING SYSTEM AND METHOD OF USE - An apparatus and method for delivering a thickened fluid mixture, including a CO | 06-05-2014 |
20140151052 | KOBE SUB WITH INFLOW CONTROL, WELLBORE TUBING STRING AND METHOD - A kobe sub includes a kobe installed in a port of the sub, the kobe includes a cap portion accessible in the inner bore, a base mounted in the port and connected to the cap portion, a channel extending through the base and closed by the cap portion; and an inflow controller positioned to control fluid flowing through the channel toward the inner bore when the cap portion is opened; and a port opening tool for opening the cap portion. The kobe may be employed with a frac port. | 06-05-2014 |
20140158361 | PRESSURE CONTROLLED MULTI-SHIFT FRAC SLEEVE SYSTEM - A frac sleeve system includes an outer sleeve with openings, an inner sleeve with ports, a pressure seat, a bottom locking device and a spring device. In a closed configuration of the inner sleeve, the openings and ports are not aligned for any fluid connection. In an opened configuration, at least one opening is aligned with at least one port for a fluid connection through the system. The inner sleeve shifts back and forth between configurations according to the pressure seat and the spring. The interaction of a guide pin on the outer sleeve and the guide slot on the inner sleeve controls the rotational and longitudinal movement of the inner sleeve along the common axis of the inner sleeve and outer sleeve so that there is unlimited shifting between configurations. The locking devices and spring device are also reuseable for the multiple shifting. | 06-12-2014 |
20140166292 | Sliding Sleeve Having Deformable Ball Seat - A sliding sleeve opens with a deployed ball. The sleeve has a seat disposed in the housing, and the seat has segments biased outward from one another with a C-ring or other biasing element. Initially, the seat has an expanded state in the sliding sleeve so that the seats segments expand outward against the housing's bore. When an appropriately sized ball is deployed downhole, the ball engages the expanded seat. Fluid pressure applied against the seated ball moves the seat into the inner sleeve's bore. As this occurs, the seat contracts, which increases the engagement area of the seat with the ball. Eventually, the seat reaches the shoulder in the inner sleeve so that pressure applied against the seated ball now moves the inner sleeve in the housing to open the sliding sleeve's flow port. | 06-19-2014 |
20140166293 | METHOD FOR EXTENDING A NETWORK OF EXISTING FRACTURES - The present invention relates to a method for extending a network of existing fractures in a subterranean formation. This method comprises pumping a first fluid into a pressurized volume to pressurize a compressible fluid in said pressurized volume to a predetermined pressure and releasing a second fluid out of the pressurized volume in a confined volume connected to the existing fractures, the second fluid being released due to a relaxation of the pressurized compressible fluid in the pressurized volume. Moreover, the release of second fluid exerts pressures in the existing fractures exceeding a fracturing threshold of the subterranean formation. | 06-19-2014 |
20140174746 | SLEEVE VALVE - An sleeve valve for a well assembly includes at least one set of passages extending through a tubular body between the central passage and an exterior of the tubular body and a sleeve slidably located within the central passage of the valve body adapted to selectably sealably cover or uncover the at least one sets of passages. A shifting tool for actuating the sleeve valve is connectable to a tool string and includes a shifting bore with an actuating piston extending from a central bore through the shifting tool and first and second key bores extending radially inwards from the outer surface each having a piston keys located therein. Each of the first and second piston keys is operably connected to the actuating piston so as to be extended from the outer surface when the central bore is supplied with a pressurized fluid. | 06-26-2014 |
20140209312 | Use of Ionized Water in Hydraulic Fracturing - A method and system for generating an ionized fluid, injecting the ionized fluid into fissures in a subterranean formation, pressurizing the ionized fluid, whereby the crystalline structure of a portion of the shale deposits located at the fissures are changed into suspended particles, whereby the depressurization of the ionized fluid forces the suspended particles out of the fissures, increasing the flow of hydrocarbons from those fissures. | 07-31-2014 |
20140216749 | ELECTROCOAGULATION REDUCTION OF MAGNESIUM FROM SEAWATER FOR HIGH-pH or HIGH-TEMPERATURE TREATMENT - A method of treating a well including the steps of: (A) treating a first aqueous fluid comprising seawater with electrocoagulation to obtain a second aqueous fluid, wherein the second aqueous fluid has a reduced concentration of magnesium ions relative to the original concentration of magnesium ions in the first aqueous fluid; (B) forming a treatment fluid comprising: (i) an aqueous phase, wherein the aqueous phase comprises the second aqueous fluid, and (ii) a viscosity-increasing agent in the aqueous phase; and (C) introducing the treatment fluid into a well. The aqueous phase can have a pH of at least about 9 or the treatment fluid can be introduced into a well at a design temperature of at least about 93° C. (200° F.). | 08-07-2014 |
20140238683 | Integrated Arctic Fracking Apparatus and Methods - An apparatus includes a frame structure and one or more fracking fluid tanks carried by the frame structure. The one or more fracking fluid tanks arranged to contain a fracking fluid usable during a fracking procedure. One or more fracking pumps may be carried by the frame structure, the one or more fracking pumps being configured to pump the fracking fluid to a wellhead of a wellbore at high pressure. An integrated piping system connects with the one or more fracking pumps to carry fracking fluid that was contained in the one or more fracking fluid tanks toward the one or more fracking pumps. Mobility-enabling structure supports the frame structure, the one or more fracking fluid tanks, the one or more fracking pumps, and the integrated piping system, the mobility enabling-structure being configured to enable conveyance of the apparatus to a fracking site. | 08-28-2014 |
20140262290 | METHOD AND SYSTEM FOR TREATING A BOREHOLE - A method for treating an open borehole including running a tool having axially spaced isolation band assemblies disposed thereon. The isolation band assemblies are deployed by pressuring on the tool. Fluid is applied to the open borehole between the isolation band assemblies. The tool is continuously moved through the borehole along a length of the borehole while treating. Further methods and a system for fracturing a borehole are also included. | 09-18-2014 |
20140262291 | SYSTEM AND METHOD FOR COMPLEX FRACTURE GENERATION - A system includes a first fluid comprising a viscosified fluid composed to generate an initial fracture geometry, a first spacer fluid, a second fluid being a high solids content fluid (HSCF) having a fine particle formulation, a third fluid being an HSCF having a coarse particle formulation, a second spacer fluid, a conventional proppant slurry fluid, and a flush fluid. The system includes a positive displacement pump fluidly coupled to a wellbore, the wellbore intersecting a formation of interest, and a controller that executes functions to perform complex fracture generation in the formation of interest. The controller provides pump commands to deliver a number of stage groupings to the formation of interest, each stage grouping including the first fluid, the first spacer fluid, the second fluid, the third fluid, and the second spacer fluid. | 09-18-2014 |
20140262292 | Stimulation with Natural Gas - Apparatus, systems, and methods in which a fracturing fluid source is in fluid communication with a wellbore extending into a subterranean formation. A compressor has an input in fluid communication with a natural gas source, and has an output in fluid communication with the wellbore. The compressor is operable to compress natural gas received at the input for delivery at the output. A liquefied gas source is also in fluid communication with the wellbore. | 09-18-2014 |
20140284058 | PRESSURE RESPONSE FRACTURE PORT TOOL FOR USE IN HYDRAULIC FRACTURING APPLICATIONS - A pressure response fracture port tool and method for its use reliably provides a noticeable indication at surface to an operator as to when the flow port is opened. The tool includes an outer housing and a sliding sleeve which resides within the outer housing. The outer housing has a first and second set of flow ports. The inner mandrel moves between a first position and a third position to expose the flow ports to the wellbore. The first set of flow ports, with its smaller area relative to the second set of flow ports, creates a noticeable pressure increase or spike that can be observed at surface when exposed to the wellbore. The second set of flow ports creates a noticeable pressure drop when it is exposed to the wellbore. | 09-25-2014 |
20140290956 | HIGH PRESSURE PUMP - A pump assembly including a plunger in communication with a pumpable media, a plurality of combustion chambers and a plurality of pistons. Each piston is associated with one of the combustion chambers. The pistons are in communication with the plunger and operatively arranged to together collectively urge the plunger in a pumping direction when the combustion chambers are triggered for displacing the pumpable media with the plunger. Also included is a method of pumping a media. | 10-02-2014 |
20140290957 | Reactor Tank - Disclosed is an improved water treatment cavitation reactor cone. The tank operates on a continuous flow of fluids which are subjected to ultrasonic waves in combination with a high level of injected ozone. The treatment tank includes a tangential inlet that induces a rotating flow into the tank thereby increasing the mixing of the ozone within the effluent. The effluent is further treated with DC current. The treatment tank provides a cost efficient and environmentally friendly process and apparatus for cleaning and recycling fluids as contaminated as frac water, used to stimulate gas production from shale formations, as well as other types of fluids having various levels of contaminants such as aerobic and anaerobic bacteria and suspended solids. The calcium carbonate scaling tendency is reduced to an acceptable level without the use of acids, ion exchange materials, or anti scaling chemicals which is of economical and environmental significance and benefit. | 10-02-2014 |
20140299326 | Method to Generate Diversion and Distribution For Unconventional Fracturing in Shale - Relatively high viscosity materials and methods for introducing them as discrete bodies or masses into relatively low viscosity fluids, such as brine, give fracturing fluids that help control the diversion and distribution of fluids as they are pumped downhole against a subterranean formation, particularly shale, to fracture it. A wide range of relatively viscous materials may be used, including polymers, crosslinked polymers and/or surfactant gels, for instance gels created with viscoelastic surfactants (VESs). Once the fracturing fluids containing these bodies or masses are within the hydraulic fracture, the processes of paths of least resistance, flow deviation, viscous material flow displacement, total fluid diversion, in situ fluid viscosity generation and distribution of delayed release treatment additives may be deployed. | 10-09-2014 |
20140305648 | TOOLS AND METHODS FOR USE IN COMPLETION OF A WELLBORE - A ported tubular is provided for use in casing a wellbore, to permit selective access to the adjacent formation during completion operations. A system and method for completing a wellbore using the ported tubular are also provided. Ports within the wellbore casing may be opened, isolated, or otherwise accessed to deliver treatment to the formation through the ports. | 10-16-2014 |
20140318794 | Generation of Hydrocarbon Fuels Having a Reduced Environmental Impact - The Fischer-Tropsch (FT) process can be controlled to create water that has desirable characteristics for use in secondary processes such as fracking or irrigation. | 10-30-2014 |
20140352968 | MULTI-WELL SIMULTANEOUS FRACTURING SYSTEM - A system for simultaneously fracturing multiple wells is provided. In one embodiment, the system includes fracturing trees installed at multiple wells. A fracturing manifold is connected to the fracturing trees and includes output valves to independently control flow of fracturing fluid from the manifold to each of multiple wells. The system may also include a controller connected to the output valves so that the controller can remotely operate the output valves to simultaneously fracture the multiple wells and independently control the volume of fracturing fluid entering each of the wells from the fracturing manifold. Additional systems, devices, and methods are also disclosed. | 12-04-2014 |
20140367109 | On-Site Generation of a Fracturing Fluid Stream and Systems and Methods Utilizing the Same - On-site generation of a fracturing fluid stream system includes a fracturing fluid generation assembly and a fracturing fluid supply assembly. The fracturing fluid generation assembly is configured to receive a hydrocarbon stream and to generate a fracturing fluid stream from the hydrocarbon stream. The fracturing fluid stream has an oxygen concentration, which is less than a limiting oxygen concentration for supporting combustion of a combustible fluid that is present within a subterranean formation. The fracturing fluid stream also has a combustible portion, which defines a concentration that is below a lower flammability limit of the combustible portion in the fracturing fluid stream. The fracturing fluid supply assembly is configured to receive the fracturing fluid stream and to convey the fracturing fluid stream to the subterranean formation to fracture the subterranean formation. | 12-18-2014 |
20150007996 | Method for Producing Oil From Induced Fractures Using a Single Wellbore and Multiple-Channel Tubing - A method for sweeping a subterranean petroleum reservoir and recovering hydrocarbons therefrom. Such method utilizes a plurality of spaced hydraulic fractures extending radially outwardly from, and spaced laterally along, a length of a single horizontal wellbore drilled through the reservoir. The hydraulic fractures are each in fluid communication with the drilled wellbore. A multi-channel tubing having a plurality of individual discrete channels therein extending along substantially a length thereof is placed in the horizontal wellbore, and at least one packer element situated along a length of said tubing is employed. The plurality of channels in the multi-channel tubing comprise, at a minimum, a fluid injection channel for transmitting a driving fluid to hydraulic fractures in the reservoir, and a separate hydrocarbon recovery channel for collecting hydrocarbons which drain into the reservoir and producing them to surface. | 01-08-2015 |
20150007997 | WELL FRACTURING SYSTEMS AND METHODS - A fracturing system can include a fracturing manifold coupled to a plurality of fracturing trees. The fracturing manifold may include adjustment joints that enable adjustment of the length of the fracturing manifold. The fracturing manifold can also include pivot joints that allow angular displacement of portions of the fracturing manifold with respect to other portions. The adjustment and pivot joints can accommodate spacing and elevation differences between the fracturing trees. | 01-08-2015 |
20150007998 | INTEGRAL FRACTURING MANIFOLD - A fracturing system can include an integral fracturing manifold. More particularly, a fracturing system can include a plurality of fracturing trees and an integral fracturing manifold may be directly coupled to each of the plurality of fracturing trees. The integral fracturing manifold may also include adjustment and pivot joints that accommodate spacing and elevation differences between the fracturing trees. | 01-08-2015 |
20150021032 | METHOD FOR FRACKING WELLS USING A PACKER TO FORM PRIMARY AND SECONDARY FRACS AND SEAL INTERVALS FOR HYDRUALIC FRACTURING - A method for fracking and completing a well ( | 01-22-2015 |
20150034324 | VALVE ASSEMBLY - A system that is usable with a well includes a string and valve assemblies that are disposed on the string. The valve assembly includes at least one control port and at least one radial fluid communication port. The valve assembly is adapted to serially receive an untethered object deployed in the string such that receipt of the object by a valve assembly of the plurality of valve assemblies creates a fluid obstruction to cause the valve assembly to expose the at least one control port of the valve assembly; serially release the untethered object; and jointly respond to pressurization of the string to open the radial fluid communication ports. | 02-05-2015 |
20150053408 | Wellbore Completion - The present application relates to systems and methods for use in wellbore completion. Embodiments of the invention relate to a method and system for operating a downhole tool, such as a downhole tool associated with well fracturing. | 02-26-2015 |
20150060076 | PROFILE SELECTIVE SYSTEM FOR DOWNHOLE TOOLS - A method and apparatus for selectively actuating a downhole tool in a tubular conduit. An actuator tool has an actuator mandrel having an actuator bore through and a bypass and a profile key to selectively engage the downhole tool. The downhole tool has one or more profile receivers adapted to actuate the downhole tool. The actuator tool is conveyed into the tubular conduit and the actuator tool and the downhole tool are engaged if the profile key and the profile receiver match, and the actuator tool and the downhole tool are non-engaged if the profile key and the profile receiver do not match. Fluid may be circulated through the actuator bore to flush or wash ahead of the actuator tool. | 03-05-2015 |
20150068752 | Flow Bypass Device and Method - Devices, systems and methods are disclosed for re-directing fluid flow from the interior of tubing placed in a well to the exterior of the tubing by use of selectively actuatable valves operable by engagement of a plug on a plug seat. The devices, systems, and methods disclosed may provide a flowback bypass for the flow of fluids around obstructions in the tubing when those obstructions occur at a predicted location within the tubing. The systems, devices and methods may also include a locking system operable by, among other things, plug and plug seat valves, and such locking system may be used to prevent opening of the flowback bypass until after a predetermined event has occurred. | 03-12-2015 |
20150068753 | APPARATUS AND METHOD FOR SOLUTION MINING USING CYCLING PROCESS - Provided are an apparatus and method for solution mining using cycling process in which a solvent is injected into underground useful ores to dissolve the useful ores and then collected again to obtain the useful ores. The cycling solution mining method includes a boring process for excavating the underground up to an ore deposit, a fracturing process to generate cracks in the ore deposit, an injection process for inserting a mining apparatus including an insertion rod having a pipe shape up to a lower portion of the well to inject a solvent that dissolves the useful ores into the ore deposit through the insertion rod, wherein a rotation force is applied to the solvent discharged from the insertion rod to increase a diffusion force of the solvent, and a production process for collecting the solvent, in which the useful ores are dissolved, again. | 03-12-2015 |
20150068754 | MOBILE, MODULAR, ELECTRICALLY POWERED SYSTEM FOR USE IN FRACTURING UNDERGROUND FORMATIONS - The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems. | 03-12-2015 |
20150083426 | SOLIDS DELIVERY APPARATUS AND METHOD FOR A WELL - A method that is usable with a well includes introducing solids into a pneumatic stream to produce a solids-containing pneumatic stream; communicating the solids-containing pneumatic stream to a blender assembly to mix the solids with at least one other material to produce a flow; and pumping the flow into the well. | 03-26-2015 |
20150083427 | HIGH PRESSURE MULTISTAGE CENTRIFUGAL PUMP FOR FRACTURING HYDROCARBON RESERVES - The present invention relates to a multistage centrifugal pump design, which has the diffusers, impellors, and a shaft, inserted within a high pressure housing, such that this assembly is fully enclosed within the housing, and the housing is of sufficient strength to be suitable for safe pressure containment of the fluids being pumped. This invention describes the technical details used to reconfigure the multistage centrifugal pump design to increase the discharge pressure capabilities higher than the 6,000 psig of current designs. | 03-26-2015 |
20150101817 | Sub-surface formation boundary detection using an electric-field borehole telemetry apparatus - The method of maintaining drill bit advancement in an underground formation that contains shale, including providing an electrical signal from an insulated gap location in a drill string substantially directly behind the bit in the formation, detecting substantial change in a signal as the bit advances, and changing the direction of drilling of the bit as a function of a signal change, to thereby maintain the direction of bit advancement in the formation. | 04-16-2015 |
20150107843 | Completing Long, Deviated Wells - A buoyancy fluid is sealed in an interior central bore of a completion liner with a plug assembly in the interior central bore. The buoyancy fluid has a lower density than the fluid contained in the wellbore. The buoyancy fluid reduces the force, and thus friction, at the interface between the liner and the bottom of the wellbore while the completion liner is being run to final depth. When the buoyancy fluid is no longer needed, the plug assembly can be withdrawn uphole from the completion liner and to the surface. | 04-23-2015 |
20150114651 | DOWNHOLE FRACTURING SYSTEM AND TECHNIQUE - A system that is usable with a well includes a first tubing string and a plurality of tubing segments. The first tubing string is deployed in the well and includes a plurality of valve assemblies, which span a segment of the first tubing string. The tubing segments are adapted to be deployed in the well inside the first tubing string and attach together in the segment of the first tubing string in a sequence to form a second tubing string in a manner that allows sequential operation of the valve assemblies of the first tubing string. | 04-30-2015 |
20150114652 | FRACTURING SYSTEMS AND METHODS FOR A WELLBORE - The disclosure contained herein describes systems, units, and methods usable to stimulate a formation including a pump usable to pressurize fluid, an electric-powered driver in communication with and actuating the pump, and an electrical power source in communication with and powering the electric-powered driver. The electrical power source can include on-site generators and/or grid power sources, and transformers can be used to alter the voltage received to a voltage suitable for powering the electric-powered driver. Air moving devices associated with the electric-powered driver can be used to provide air proximate to the pump to disperse gasses. In combination with fluid supply and/or proppant addition subsystems, the pump can be used to fracture a formation. | 04-30-2015 |
20150129229 | FRACKING APPARATUS AND METHOD - A downhole tool for treating a zone adjacent a wellbore, comprising a body having at least two separable portions, the portions operable to open and close a fluid path through the tool, and at least one manipulator, like a spring-loaded finger, to establish a fluid path between an interior and exterior of the wellbore, thereby permitting a zone adjacent the wellbore to be treated. In another embodiment a method is disclosed for treating a zone of interest adjacent a wellbore. | 05-14-2015 |
20150129230 | Pneumatic System And Process For Fracturing Rock In Geological Formations - A tunable pneumatic fracturing system and process useable in some instances to extract oil and gas. Some embodiments provide a pneumatic fracturing tool with an elongated body that (a) contains (i) a propellant supply source intermediate opposed propellant gas discharge assemblies, (ii) a control system, and (iii) a communications port, and (b) has roller assemblies at opposed ends of the body. The tool can be tuned to provide gas pulse amplitudes and frequencies that react with the resonant frequency or other aspect of an adjacent earth formation. Some tool embodiments can variably sweep a rock formation and adjust the pressure pulse amplitude and frequency to disrupt the formation in a more productive manner. Some tools can penetrate vertical bore wells as well non-vertical bore wells. In some systems, the tool is transported and operated by a control truck and can be commanded to download operational data during or after use. | 05-14-2015 |
20150136403 | BALL SEAT SYSTEM - The system and method for hydraulic fracturing includes a downhole tool with a sub, a sleeve, a ball seat support, and a ball seat holder. A ball dropped through the wellbore sits on the ball interface of the ball seat holder. Fluid flowing through the system pushes the ball against the ball interface, causing the ball seat holder to slide through the ball seat support and the ball interface to clamp the ball. A ball matches only a particular ball interface. Additional pressure forms a seal of the ball, the ball seat holder, and the ball seat support and moves the sleeve to slide through the sub and expose the throughbore to the annulus for the fracturing. Contact distributed between the ball, ball interface of the ball seat holder, and ball seat support withstands the temperature and pressure of the fracturing without deformation or failure of the ball. | 05-21-2015 |
20150144347 | System and Method for Re-fracturing Multizone Horizontal Wellbores - A packer on a tubing string and diverting material pumped down the tubing string may be used isolate a fracture cluster in a multizone horizontal wellbore that has been previously hydraulically fractured. Once hydraulically isolated, fluid may be pumped down the tubing string to re-fracture the previously fractured fracture cluster in an effort to increase hydrocarbon production from the horizontal wellbore. The tubing string may include a testing device used to determine whether a specific fracture cluster within the horizontal wellbore should be re-fractured. Diverting material may be pumped down the tubing string and positioned adjacent a fracture cluster to hydraulically isolate the fracture cluster during the re-fracturing process. The diverting material may be cleaned out of the horizontal wellbore after all desired fracture clusters along the horizontal wellbore have been individually re-fractured. | 05-28-2015 |
20150144348 | BALL SEALER FOR HYDROCARBON RESOURCE COLLECTION AS WELL AS PRODUCTION METHOD THEREFOR AND DOWNHOLE TREATMENT METHOD USING SAME - A ball sealer for hydrocarbon resource recovery, comprising: a generally spherical entire structure including at least two layers of a spherical core and a surface resin layer covering the spherical core, of which at least the surface resin layer comprises a polyglycolic acid resin; and having a diameter of at least about 25 mm (1 inch). The ball sealer is produced through a process comprising the steps of: disposing a spherical core by a support pin at a substantially central position within a mold cavity, injecting a surface resin comprising a polyglycolic acid resin into the cavity surrounding the spherical core, causing the support pin to retreat up to a wall surface of mold cavity in synchronism with a completion of the injection of the surface resin, and then hardening the surface resin. As a result, it is possible to produce a large-diameter ball sealer suitable for use in the hydraulic fracturing process (hydraulic fracturing) widely used for recovery of hydrocarbon resources by using a polyglycolic acid resin which is a biodegradable resin having good mechanical strengths and a good size designability at least as a surface-forming resin, through relatively simple steps and with good dimensional accuracy. | 05-28-2015 |
20150300145 | MOBILE, MODULAR, ELECTRICALLY POWERED SYSTEM FOR USE IN FRACTURING UNDERGROUND FORMATIONS USING LIQUID PETROLEUM GAS - The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems. The treatment fluid can comprise a water-based fracturing fluid or a waterless liquefied petroleum gas (LPG) fracturing fluid. | 10-22-2015 |
20150322760 | MECHANICALLY ASSISTED FRACTURE INITIATION - Systems and methods are described for controlling the location where a fracture initiates and the fracture direction at the initiation point. A mechanical device is positioned in a main wellbore or partially or fully in a side hole off of the main wellbore. The mechanical device is actuated so as to contact the formation walls and induce stress in the formation. According to some embodiments, fractures are also initiated using the mechanical device. A hydraulic fracturing process is then carried out to fracture and/or propagate fractures in locations and/or directions according to the actuation of the mechanical device. | 11-12-2015 |
20150322761 | APPARATUS AND METHOD FOR SERVICING A WELL - A blender apparatus is disclosed having a chassis, a mixer positioned on the chassis, and a transfer pump positioned on the chassis. The mixer has a mixer housing defining a first mixer inlet, a second mixer inlet, and a mixer outlet. The first mixer inlet receives a liquid component, and the second mixer inlet receives a dry component. The mixer pressurizes at least the liquid component within the housing and discharges the liquid component through the mixer outlet at a first pressure above hydrostatic pressure. The transfer pump has a pump housing defining a pump inlet, a pump outlet and is devoid of an inlet configured to receive a dry component through a gravity feed. The transfer pump receives the liquid component through the pump inlet, pressurizes the liquid component within the pump housing, and discharges the liquid component through the pump outlet at a second pressure above hydrostatic pressure. | 11-12-2015 |
20150330187 | FLOW CONTROL SYSTEM - A system and methodology facilitate flow control through actuation of valves individually along a plurality of zones. The system and methodology may be used in a variety of applications, including fracturing operations in which the valves are selectively actuated to control flow of fracturing fluid to specific zones of a formation. In fracturing applications, a well string is provided with a plurality of stages positioned sequentially along a plurality of surrounding zones, e.g. well zones. Each stage may be uniquely actuated relative to other stages by dropping a ball or balls down to the desired stage and actuating the valve via application of pressure. | 11-19-2015 |
20150354314 | METHOD AND APPARATUS FOR HYDRAULIC FRACTURING - A method of treating a consolidated formation having a wellbore therein. Tubing including a stress relieving tool is provided in the wellbore. An interval in the wellbore wherein the stress relieving tool is located is isolated. The stress relieving tool is actuated to apply mechanical force radially to an uncased inner diameter surface of the wellbore for providing a reduced stress zone of the formation. Fluid pressure is increased in the wellbore to fracture the formation within the reduced stress zone. | 12-10-2015 |
20160017697 | COMPLETION TOOL, STRING COMPLETION SYSTEM, AND METHOD OF COMPLETING A WELL - A completion system includes, a tool string having, a plurality of packers configured to isolate a plurality of zones along a borehole that the tool string is positioned within. A plurality of ports along the tool string are configured to be selectively opened and a plurality of screens in operable communication with the plurality of ports are configured to filter fluid flowing between the zones and an inside of the tool string through the plurality of ports. The tool string is also configured to be run into the borehole, the plurality of packers set, the plurality of ports selectively opened, and fluid to flow between the plurality of zones and an inside of the tool string without intervention. | 01-21-2016 |
20160024619 | CORRODIBLE DOWNHOLE ARTICLE - A magnesium alloy suitable for use as a corrodible downhole article. The alloy has a corrosion rate of at least 50 mg/cm | 01-28-2016 |
20160024857 | ADJUSTABLE FRACTURING SYSTEM - An adjustable fracturing system is provided. In one embodiment, the system includes a fracturing manifold and a fracturing tree. A fluid conduit is coupled between the fracturing manifold and the fracturing tree to enable receipt of fracturing fluid by the fracturing tree from the fracturing manifold. Further, the fluid conduit is an adjustable fluid conduit that allows an operator to vary a dimension of the fluid conduit to facilitate coupling of the fluid conduit between the fracturing manifold and the fracturing tree. Additional systems, devices, and methods are also disclosed. | 01-28-2016 |
20160032683 | DOWNHOLE COMMUNICATION AND CONTROL SYSTEM AND METHOD FOR NON-SEQUENTIAL DOWNHOLE OPERATIONS - A downhole communication and control system configured for use in a non-sequential order of treating a borehole, the system includes a string having at least three ports including first, second, and third longitudinally spaced ports arranged sequentially in a downhole to uphole manner in the string; at least three frac sleeve systems including first, second, and third frac sleeve systems arranged sequentially in a downhole to uphole manner in the string and arranged to open and close the first, second, and third ports, respectively, each frac sleeve system having self-powered, electronically triggered first and second sleeves; and, communication signals to trigger the first, second, and third frac sleeve systems into moving the first and second sleeves to open and close the ports. Also included is a method of completing downhole operations in a non-sequential order. | 02-04-2016 |
20160034818 | OILFIELD DATA ANALYTICS AND DECISION WORKFLOW SOLUTION - A method for presenting oilfield data to a user includes: searching a plurality of oilfield data sources for raw oilfield data; applying an algorithm as needed to the raw oilfield data; providing a quality control check on the oilfield data; deleting any oilfield data that does not pass the quality control check; tagging oilfield data that passes the quality control check with one or more searchable identifiers; storing any oilfield data that passes the quality control check and associated one or more identifiers in a storage medium; receiving a request for specified oilfield data from a user; searching identifiers in the storage medium to identify the specified oilfield data; and sending the identified specified oilfield data in the storage medium to the user. The method may also include planning an oilfield action using the specified oilfield data and implementing the planned oilfield action using oilfield equipment. | 02-04-2016 |
20160040518 | WELL TREATMENT FLUIDS - In-line electrolysis of well treatment fluid in a method and system to supply a treatment fluid downhole in the well. In the method, a treatment fluid is electrolyzed in a flow path to a downhole location to form one or more electrolysis products. In the system, an electrolysis cell has at least one electrode integrated in the flow path. Also disclosed is a method to treat a subterranean formation by modulating amperage to an electrolysis cell in the flow path to form a heterogeneous concentration of one or more electrolysis products to transform a self-agglomerating solid composition in the fracture into a channelized solids pack comprising clusters having a high concentration of solids, wherein the clusters are separated by open voids having a substantially reduced concentration of solids between the clusters. | 02-11-2016 |
20160040520 | METHODS FOR MULTI-ZONE FRACTURE STIMULATION OF A WELL - A completion assembly designed to perforate a section of casing along a wellbore, comprises a perforating gun, a canister, and a locator device. The canister contains ball sealers that are dimensioned to seal perforations, while the locator device is a casing collar locator that senses the location of the assembly within the wellbore based on the spacing of casing collars. The completion assembly also includes an on-board controller configured to send an actuation signal to the perforating gun to cause one or more detonators to fire when the locator has recognized a selected location of the completion assembly, thereby perforating the casing, and to release the ball sealers from the canister. Methods for seamlessly perforating and fracturing multiple zones along a wellbore are also provided, using a select-fire perforating gun. | 02-11-2016 |
20160047179 | INCREASING HYDROCARBON RECOVERY FROM RESERVOIRS - A method, system and apparatus for producing hydrocarbons from a low permeability reservoir formation. A wellbore ( | 02-18-2016 |
20160047197 | Downhole Tool Device and Method for Using the Same - A downhole tool is arranged for connection to a fluid-carrying string. The downhole tool includes: a first reversibly expandable sealing element; a second reversibly expandable sealing element placed at an axial distance from the first reversibly expandable sealing element; one or more fluid ports positioned between the two reversibly expandable sealing elements and arranged to be put in fluid communication with the fluid-carrying string; a first anchoring device arranged to engage a pipe body in a well; and one or more electromotors arranged at least to operate the two reversibly expandable sealing elements and the first anchoring device. The downhole tool further includes a first mechanically activatable release mechanism arranged at least to disengage the first anchoring device from the pipe body. A method is for utilizing a downhole tool. | 02-18-2016 |
20160047198 | Wellbore Plug Isolation System and Method - A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The RPE includes a first composition and a second composition that changes phase or strength under wellbore conditions. After a stage is perforated, RPEs are deployed to isolate toe ward pressure communication. The second composition changes phase to create flow channels in the RPE during production. In an alternate system/method, the second composition changes phase or strength thereby deforming the RPE to reduce size and pass through the RSM's. The RPEs are removed or left behind prior to initiating well production without the need for a milling procedure. | 02-18-2016 |
20160053598 | Method and Apparatus for Wellbore Fluid Treatment - A method for fracturing a hydrocarbon-containing formation includes running a tubing string into an open hole and uncased, non-vertical section of the wellbore, and expanding first, second, and third solid body packers until each sets and seals against the wellbore wall. The method also includes applying a first pressure within the tubing string inner bore such that the hydraulically actuated sliding sleeve moves from a closed port position to an open port position without engaging any fluid conveyed sealing device. The method also includes conveying a sealing device through the tubing string, passing through a first sliding sleeve and landing in and sealing against a second sliding sleeve's seat moving the second sliding sleeve to an open port position permitting fluid flow through a second port. And the method includes pumping fracturing fluid through the second port and into an annular wellbore segment to fracture the hydrocarbon-containing formation. | 02-25-2016 |
20160061016 | HYDRAULIC FRACTURING SYSTEM AND METHOD - A hydraulic fracturing system and method for enhancing effective permeability of earth formations to increase hydrocarbon production, enhance operation efficiency by reducing fluid entry friction due to tortuosity and perforation, and to open perforations that are either unopened or not effective using traditional techniques, by varying a pump rate and/or a flow rate to a wellbore. | 03-03-2016 |
20160069145 | Utilizing Dissolvable Metal for Activating Expansion and Contraction Joints - A system, tool and method of providing the tool downhole is disclosed. The tool is conveyed downhole on a tool string. The tool includes a first member and a second member locked in a first configuration by a locking member. The locking member is dissolvable upon introduction of a dissolving agent to the locking member. Dissolving the locking member allows motion between the second member and the first member. | 03-10-2016 |
20160084057 | CONCENTRIC COIL TUBING DEPLOYMENT FOR HYDRAULIC FRACTURE APPLICATION - A method and system for treating a portion of a wellbore. The system includes a coiled tubing string having two fluid flow areas and a valve configured to control the fluid flow out of both flow areas. The system may include at least one isolation element used to isolate a portion of a wellbore. The isolated portion of the wellbore may be treated by pumping fluid down one or both of the flow areas. The valve may be actuated to permit fluid to be pumped down one flow area while fluid is pumped up the other flow area, which may be used to clean out a screen out, treatment, proppant, and/or solids in the wellbore. The coiled tubing string with two fluid flow areas may be used to treat, stimulate, and/or fracture a portion of a wellbore and provide cleanout capabilities, if required. | 03-24-2016 |
20160084058 | Fracturing System and Method for an Underground Formation Using Natural Gas and an Inert Purging Fluid - A method for fracturing a downhole formation, includes: preparing an energized fracturing fluid including mixing gaseous natural gas and a fracturing base fluid in a mixer; injecting the energized fracturing fluid through a wellhead and into a well; and continuing to inject the energized fracturing fluid until the formation is fractured. An apparatus for generating an energized fracturing fluid for use to fracture a downhole formation, the apparatus includes: a fracturing base fluid source; a natural gas source; and a mixer for accepting natural gas from the natural gas source and fracturing base fluid from the fracturing base fluid source and mixing the natural gas and the fracturing base fluid to generate the energized fracturing fluid. | 03-24-2016 |
20160097247 | METHODS OF FILTERING A FLUID USING A PORTABLE FLUID FILTRATION APPARATUS - A recovered fluid may be flowed through a portable fluid filtration apparatus for filtering the recovered fluid and forming a filtered fluid. The portable fluid filtration apparatus may have or include a fluid filtration platform in fluid communication with at least one self-cleaning filter component. The fluid filtration platform may have at least two segments where a first segment is configured to be attachable to a second segment. Each segment may include at least one inlet, at least one outlet, and at least one valve. In a non-limiting embodiment, the portable filtration apparatus may be in fluid communication with an oilfield fluid filtration system. | 04-07-2016 |
20160097255 | SEAT ARRANGEMENT, METHOD FOR CREATING A SEAT AND METHOD FOR FRACTURING A BOREHOLE - A degradable seat arrangement consisting of a pusher; a cone having a tapered face; and a seal having a seal deformation face configured to contact the tapered face. A method for creating a seat in a borehole. | 04-07-2016 |
20160102243 | EXPANDABLE PROPPANT - A method of treating a subterranean formation includes injecting an expandable proppant fluid into a wellbore, wherein the expandable proppant fluid comprises an expandable material; introducing the expandable proppant fluid into the subterranean formation through the wellbore; and increasing the diameter of the expandable material in the expandable proppant fluid from a first diameter to a second diameter after introduction into the subterranean formation. | 04-14-2016 |
20160102540 | PARTICLE DUST CONTROL WITH LIQUID BINDING AGENTS - Methods including placing particles that are substantially dry in a hopper; conveying the particles from the hopper via a conveyance to an open-air gap; adding a fluid to the particles in the hopper, the particles in the conveyance, or both, thereby reducing an amount of a dust produced at the open-air gap. The particles may be sand, silica, gravel, bauxite, ceramic materials, glass materials, polymer materials, polytetrafluoroethylene materials, nut shell pieces, cured resinous particulates comprising nut shell pieces, seed shell pieces, cured resinous particulates comprising seed shell pieces, fruit pit pieces, cured resinous particulates comprising fruit pit pieces, wood, composite particulates, and combinations thereof. | 04-14-2016 |
20160108712 | HYDRAULIC FRACTURING SYSTEM AND METHOD - A hydraulic fracturing system and method are disclosed. The system can include a manifold having a first fluid outlet, a second fluid outlet, and a plurality of fluid inlets. The system can also include primary pumps, which are fluidically coupled to one of the fluid inlets, wherein the primary pumps are configured to deliver a first fluid stream to the first fluid outlet and a second fluid stream to the second fluid outlet. The system can further include a supplemental pump fluidically coupled to the second fluid outlet, wherein the supplemental pump is configured to deliver pulses of fluid to the first fluid stream. | 04-21-2016 |
20160115773 | MODULAR FRACTURING SYSTEM - A modular fracturing system is provided. In one embodiment, a fracturing manifold system includes a fracturing fluid manifold and a skid apparatus coupled in fluid communication with the fracturing fluid manifold and only one fracturing tree. The skid apparatus can include an inlet coupled to the fracturing fluid manifold, a single outlet coupled to the one fracturing tree via a fluid conduit, and a valve between the inlet and the single outlet to control flow of fracturing fluid from the fracturing fluid manifold through the skid apparatus to the one fracturing tree. Additional systems, devices, and methods are also disclosed. | 04-28-2016 |
20160123113 | Flow-Activated Flow Control Device and Method of Using Same in Wellbore Completion Assemblies - A completion assembly for use in a wellbore is disclosed that in one non-limiting embodiment includes a tubular member having at least one packer to isolate a zone between the completion assembly and the wellbore, and a flow control device for closing flow of fluid through the tubular member, the flow control device including a valve that includes a fluid flow path and a seal member configured to close the fluid flow path, and a fluid-activated device that cycles each time a pressure differential is created across the flow path and moves the seal member to close the valve after completion of a selected number of cycles. | 05-05-2016 |
20160138370 | MECHANICAL DIVERTER - An apparatus for performing a wellbore operation includes a retrievable tubular defining an axial flowbore and having at least one opening providing fluid communication between the flowbore and a formation, and a degradable diverter disposed at least partially in an annulus between a wellbore and the retrievable tubular, and adjacent to the at least one opening. The degradable diverter comprises a material that structurally degrades over an engineered time interval in response to an applied stimulus. The degradable diverter also directs a stimulation fluid exiting through the at least one opening towards the formation. The degradable diverter is connected to the retrievable tubular, a stimulation fluid is pumped through the flowbore. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the general subject matter of the technical disclosure. | 05-19-2016 |
20160145963 | Thermal Memory Spacing System - A packer having a thermal memory spacing system that includes a portion of the system that that selectively changes an outer diameter due. The packer may include upper and lower sealing elements, and at least one thermal memory shape material sub positioned between the sealing elements. The thermal memory shape material sub may have a first outer diameter at a first temperature and a second larger outer diameter at a second temperature. The first temperature may be greater than the second temperature. The outer diameter of the sub may be selectively increased to temporarily decrease the annular area in which debris and/or materials may collect and potentially cause the packer to become stuck within the wellbore. Prior to moving the packer to a different location, the outer diameter of the sub may be decreased to increase the annular area potentially decreasing the likelihood that the packer becomes stuck. | 05-26-2016 |
20160160600 | USE OF SEGMENTED BALL SEAT AND ROTATIONAL LOCKING COLLET FOR FRAC BALL COUNTER - An apparatus for performing a wellbore operation with a plug includes a plug seat assembly that has a plug seat having a plurality of seat segments, at least one seat segment having a plug seat rack, and each plug seat segment having an inner surface contacting the plug. The plug seat assembly also has a collet having a collet rack and a locking ratchet, the collet rack incrementally radially disengaging from the plug seat rack during relative rotation between the collet and the plug seat, and a mandrel having a mandrel rack complementary to the locking ratchet. The plug seat assembly is positioned in a wellbore and a plug radially displaces the at least one plug seat segment of the plug seat assembly. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the general subject matter of the technical disclosure. | 06-09-2016 |
20160160608 | SINGLE TRIP - THROUGH DRILL PIPE PROPPANT FRACTURING METHOD FOR MULTIPLE CEMENTED-IN FRAC SLEEVES - The present invention relates to a method, a system ( | 06-09-2016 |
20160160625 | Method for developing oil or natural gas shale or tight rock formations in two step process - A method for developing oil or natural gas shale or tight rock formations by constructing wells in a two step process. The method includes an algorithm for determining under what conditions this two step process is the preferred option for developing a shale or tight rock resource. Step one is to drill a multilateral well with a profusion of unstimulated open-hole laterals from a main wellbore, after which the well is produced for a period of time. Step two is to re-enter the well and install a multistage hydraulic fracture completion. The method includes drilling the main bore and laterals in a specific sequence and geometry to facilitate running a frac liner in the future when the multistage fracturing step is carried out. | 06-09-2016 |
20160161188 | SYSTEM AND METHOD USING BUFFER TANK FOR HEAT EXCHANGE - A technique facilitates removal of heat. The technique involves moving a process fluid through a buffer tank which is combined with a heat exchange system. The heat exchange system includes a conduit carrying a coolant fluid which removes excess heat from a heat source. The conduit is routed to the buffer tank so that the cooler process fluid moving through the buffer tank is able to remove heat from the coolant fluid before it is routed back to the heat source for continued heat removal. In a well application, for example, a heat source, e.g. an electric motor, may be located on a transport vehicle and cooled by the coolant fluid. The heat transferred to the coolant fluid from the heat source is removed by routing the coolant fluid through the conduit associated with the buffer tank. This enables the cooler process fluid in the buffer tank to be used in lowering the temperature of the coolant fluid. | 06-09-2016 |
20160177657 | HIGH-STRENGTH, LOW SPECIFIC GRAVITY, FRACTURING BALLS | 06-23-2016 |
20160177670 | METHOD AND APPARATUS FOR STIMULATING MULTIPLE INTERVALS | 06-23-2016 |
20160177675 | MOBILE ELECTRIC POWER GENERATION FOR HYDRAULIC FRACTURING OF SUBSURFACE GEOLOGICAL FORMATIONS | 06-23-2016 |
20160186529 | Damping Pressure Pulses in a Well System - A damper is provided for a well system. The well system utilizes a pressure pulse generator in the wellbore to generate a pressure pulse through fluid, such as treatment fluid, in the wellbore. The damper is received in the wellbore to damp transmission of the pressure pulse through the fluid while also allowing fluid to flow through the wellbore between a terranean surface and a location adjacent the pressure pulse generator. In certain instances, the damper allows flow of fluid past the damper while damping transmission of the pressure pulse through the fluid. | 06-30-2016 |
20160376864 | APPARATUS AND METHOD FOR DISTRIBUTING FLUIDS TO A WELLBORE - An apparatus for distributing fluids to a well. In one embodiment, the apparatus includes a well stimulation fluid delivery system having an intake connection for receiving well stimulation fluid and a first conduit configured to route the well stimulation fluid from the intake connection to multiple outlet connections configured to be coupled to pumps for increasing the pressure of the well stimulation fluid. A second conduit of the apparatus is configured to receive the well stimulation fluid from the pumps, via multiple inlet connections configured to be coupled to the pumps, and to route the well stimulation fluid to a discharge connection. The apparatus also includes individual skids including platforms on which fluid conduit segments are mounted. The individual skids are coupled to one another via their mounted fluid conduit segments to form the first conduit and the second conduit. Additional systems, devices, and methods are also disclosed. | 12-29-2016 |
20180023351 | INCREASING HYDROCARBON RECOVERY FROM RESERVOIRS | 01-25-2018 |
20180023375 | VERTICAL DRILLING AND FRACTURING METHODOLOGY | 01-25-2018 |