| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166276000 | Providing porous mass of adhered filter material in well | 57 |
| 20080236823 | Degradable Fiber Systems for Stimulation - A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids otherwise having insufficient viscosity to prevent particulate settling. Fibers are given that have properties optimized for proppant transport but degrade after the treatment into degradation products that do not precipitate in the presence of ions in the water such as calcium and magnesium. Crosslinked polymer carrier fluids are identified that are not damaged by contaminants present in the fibers or by degradation products released by premature degradation of the fibers. | 10-02-2008 |
| 20080283243 | Reducing flow-back in well treating materials - A composite proppant having a proppant substrate such as a porous ceramic or silica sand coated with magnetic particles and a method of propping a subterranean formation using a composition consisting essentially of the composite proppant. | 11-20-2008 |
| 20090065206 | WELLBORE FLUID TREATMENT TUBULAR AND METHOD - A wellbore tubular including: an inner tubular wall; an opening through the inner tubular wall; an outer tubular wall positioned about the inner tubular, the outer tubular wall including an opening therethrough; a chamber between the inner tubular wall and the outer tubular wall; and a chemical treatment material in the chamber and positioned between the opening of the inner tubular wall and the opening of the outer tubular wall. The wellbore tubular may be used in downhole fluid treatment process. | 03-12-2009 |
| 20090101342 | Permeable Medium Flow Control Devices for Use in Hydrocarbon Production - An in-flow control device controls fluid flow into a wellbore tubular using a permeable medium positioned in a flow space. The permeable medium induces a predetermined pressure differential in the flow space. The permeable medium may include separate elements having interstitial spaces and/or solid porous members. In arrangements, a filtration element may be positioned upstream of the flow space. In arrangements, the flow space may be formed in a plug member associated with the housing. In certain embodiments, a flow restriction element, such as a check valve, in the housing may provide parallel fluid communication with the bore of the wellbore tubular. Additionally, an occlusion body may be positioned in the flow space and configured to disintegrate upon exposure to a preset condition. The occlusion body temporarily seals the flow space so that a bore of the tubular may be pressurized. | 04-23-2009 |
| 20090173497 | Sand control screen assembly and associated methods - Methods are provided including a method comprising: placing a sand control screen in the wellbore penetrating the subterranean formation, wherein the sand control screen comprises: a base pipe having at least one opening in a sidewall portion thereof; a swellable material layer disposed exteriorly of the base pipe and having at least one opening corresponding to the at least one opening of the base pipe; a telescoping perforation operably associated with the at least one opening of the base pipe and at least partially disposed within the at least one opening of the swellable material layer; and a filter medium disposed within the telescoping perforation; and introducing a consolidating agent into at least a portion of a subterranean formation. Additional methods are also provided. | 07-09-2009 |
| 20090260814 | System and Method to Facilitate Treatement and Sand Control in a Wellbore - A technique provides a multi-stage well treatment system having a plurality of packers and a plurality of flow valves. The multi-stage well treatment system can be moved downhole in a wellbore and actuated to isolate a plurality of sections along the wellbore for treatment. The system and methodology enable treatment, e.g. fracturing, of select sections via the flow valves, while also enabling use of the flow valves to establish a permeable, stabilized pack surrounding each flow valve. | 10-22-2009 |
| 20100018707 | METHOD OF FRACTURING USING ULTRA LIGHTWEIGHT PROPPANT SUSPENSIONS AND GASEOUS STREAMS - In a method of hydraulically fracturing a hydrocarbon-bearing subterranean formation, a proppant stage is introduced into the fracture which contains a gaseous fluid and an ultra lightweight proppant suspended in a viscosified aqueous fluid. The gaseous fluid of the proppant stage contains at least about 90 volume percent of the combination of gaseous fluid and aqueous fluid. A pad fluid may first be introduced into the formation, the pad fluid containing a gaseous fluid and, optionally, an aqueous fluid. The gaseous fluid of the pad fluid mixture typically contains at least 70 volume percent of the mixture. | 01-28-2010 |
| 20100044040 | METHOD OF INSTALLING SAND CONTROL SCREENS IN WELLBORES CONTAINING SYNTHETIC OR OIL-BASED DRILLING FLUIDS - A method of installing a sand control screen assembly in a wellbore penetrating a subterranean formation is carried out in a wellbore having a cased section and an uncased section. The wellbore contains synthetic or oil-based drilling fluids containing drilled solids. A first water-based displacement fluid that contains a shale inhibitor is introduced into the wellbore to displace the synthetic or oil-based drilling fluids from the uncased section of the wellbore. A second water-based displacement fluid is introduced into the wellbore to displace fluids within the cased section of the wellbore. The sand control screen assembly is then run to a selected depth within the uncased section of the wellbore to facilitate a gravel packing operation. | 02-25-2010 |
| 20100059223 | SHROUDED TUBULAR - Disclosed herein is a shrouded tubular device that includes but is not limited to a tubular member, such as a screen joint; a shroud surrounding at least a portion of the tubular, the shroud is at least a two-piece shroud; and a shim in the annulus between the tubular member and the shroud. By way of example only, the shroud may be located directly radially inward from the joint of two of the shroud pieces. Also disclosed herein is a method for making a shrouded tubular device. | 03-11-2010 |
| 20100065270 | FILTERING DEVICE, ESPECIALLY FOR USE AS A WELL SCREEN FILTER - The present invention relates to filtering device which is especially designed for use as a well screen filter. The filtering device comprises a tubular supporting element ( | 03-18-2010 |
| 20100116495 | POROUS TUBULAR STRUCTURES - An expandable tubular to be used within geologic structures and a method of manufacturing thereof are disclosed. The expandable tubular has a substantially tubular shaped member with an axis extending therethrough. The tubular member has one or more helical members formed within a wall of the tubular member, and the helical member may be defined about the axis of the tubular shaped member. Further, a plurality of elongated perforations are formed within the wall of tubular member, and the tubular member is compressible from a larger diameter to a smaller diameter. When compressed, the tubular member stores expansive energy within the wall, in which the tubular member may then expand back to a larger diameter when the expansive energy is released. | 05-13-2010 |
| 20100139916 | FORMATION TREATMENT - Sand in unconsolidated subterranean formations causes problems in oil recovery, which can be overcome by a method of consolidating sand in a subterranean formation, which method comprises: (i) contacting said sand in a first location in the presence of water with a slurry in a liquid medium of cement of average particle size less than 10 microns to produce in said medium a mixture comprising sand, water and some of the cement, and a remainder comprising the rest of the cement, (ii) preferably separating from said location said remainder from said mixture, (iii) which mixture is allowed to set to give permeable consolidated sand. | 06-10-2010 |
| 20100163233 | SYSTEM, METHOD AND TREATMENT FLUID FOR CONTROLLING FINES MIGRATION - A method includes providing a treatment fluid that is a viscous fluid. The viscous fluid may be greater than 0.01 Pa-s, greater than 0.1 Pa-s, and/or a cross-linked polymer based fluid. The method further includes determining a fines migration composition soluble in an aqueous phase of the treatment fluid that is compatible with the treatment fluid, and that interacts to secure fines in an earth formation intersecting a wellbore within a fines reaction time. The method further includes adding an amount of the fines migration composition to the treatment fluid, and treating the earth formation with the treatment fluid. The method includes leaking off a portion of the treatment fluid into the earth formation, and providing a residence time of the leaked off portion of the treatment fluid in the earth formation, where the residence time meets or exceeds the fines reaction time. | 07-01-2010 |
| 20100200233 | Fluid Control Apparatus and Methods For Production And Injection Wells - Flow control systems and methods for use in injection wells and in the production of hydrocarbons utilize a particulate material disposed in an external flow area of a flow control chamber having an internal flow channel and an external flow area separated at least by a permeable region. The particulate material transitions from a first accumulated condition to a free or released condition when a triggering condition is satisfied without requiring user or operator intervention. The released particles accumulate without user or operator intervention, to control the flow of production fluids through a flow control chamber by at least substantially blocking the permeable region between the external flow area and the internal flow channel. | 08-12-2010 |
| 20100307747 | ENGINEERED FIBERS FOR WELL TREATMENTS - Mixtures of fibers and solid particles are effective for curing fluid losses and lost circulation in a subterranean well. Stiff fibers are more effective than flexible ones; however, mixtures of stiff and flexible fibers have a synergistic effect. The quantity and particle-size distribution of the solids are optimized according to the stiffness, dimensions and concentrations of fibers. | 12-09-2010 |
| 20100319914 | WELL SCREEN - A well screen ( | 12-23-2010 |
| 20110005752 | Water Sensitive Porous Medium to Control Downhole Water Production and Method Therefor - Water production produced from a subterranean formation is inhibited or controlled by consolidated water sensitive porous medium (WSPM) packed within the flow path of the wellbore device container. The WSPM includes solid particles having a water hydrolyzable polymer at least partially coating the particles. The WSPM is packed under pressure within the flow path of the wellbore device container to consolidate it. The WSPM increases resistance to flow as water content increases in the fluid flowing through the flow path and decreases resistance to flow as water content decreases in the fluid flowing through the flow path. | 01-13-2011 |
| 20110030948 | Methods for Forming a Permeable and Stable Mass in a Subterranean Formation - Certain emulsions and masses produced using those emulsions exhibiting improved permeability and stability, and methods of preparation and use in subterranean operations, are provided. In one embodiment, the methods comprise: providing a composition that comprise a plurality of inorganic particulates, an aqueous component, and an organic component comprising at least one polymerizable monomer and at least one surface active agent in an amount of up to about 10% by volume of the organic component; permitting the composition to form an emulsion that comprises an internal aqueous phase in an amount of at least about 50% by volume of the emulsion and a continuous organic phase; introducing the composition into at least a portion of a subterranean formation; and permitting the composition to form a porous polymer mass in at least a portion of the subterranean formation. | 02-10-2011 |
| 20110030949 | Methods for Maintaining Conductivity of Proppant Pack - Methods suitable for use in a subterranean formation utilizing particulates coated with both a tackifier and a resin. | 02-10-2011 |
| 20110030950 | Methods for Controlling Particulate Flowback and Migration in a Subterranean Formation - Of the methods provided herein to control particulate migration, one method comprises: providing a portion of a subterranean formation comprising unconsolidated particulates; providing a tacky-consolidate treatment fluid comprising a tackifying compound, a curable resin, and a silane coupling agent; and placing the tacky-consolidate treatment fluid in the subterranean formation so as to form a tacky consolidate that comprises at least a portion of the unconsolidated particulates. | 02-10-2011 |
| 20110056683 | Wellbore fluid comprising a base fluid and a particulate bridging agent - A wellbore fluid comprising a base fluid and a particulate bridging agent comprised of a sparingly water-soluble material selected from the group consisting of melamine (2,4,5-triamino-1,3,5-triazine), lithium carbonate, lithium phosphate (Li | 03-10-2011 |
| 20110056684 | DEGRADABLE FIBER SYSTEMS FOR STIMULATION - A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids otherwise having insufficient viscosity to prevent particulate settling. Fibers are given that have properties optimized for proppant transport but degrade after the treatment into degradation products that do not precipitate in the presence of ions in the water such as calcium and magnesium. Crosslinked polymer carrier fluids are identified that are not damaged by contaminants present in the fibers or by degradation products released by premature degradation of the fibers. | 03-10-2011 |
| 20110132604 | METHOD OF USING LIGHTWEIGHT POLYAMIDES IN HYDRAULIC FRACTURING AND SAND CONTROL OPERATIONS - Lightweight polyamide particulates may be used in treatment of subterranean formations, including hydraulic fracturing and sand control methods, such as gravel packing. The polyamide particulates typically have an apparent specific gravity (ASG) between from about 1.05 to about 2.0 and are stable at temperatures up to 500° C. The polyamide particulates may be used in combination with a filler which further serves to increase the strength and temperature stability of the resulting composite. Fracture conductivity may be increased by the placement of the low density polyamide particulates as a partial monolayer. | 06-09-2011 |
| 20110146983 | METHOD OF CARRYING OUT A WLLBORE OPERATION - The invention relates to a wellbore operation, which includes the steps of: (a) introducing into a wellbore a wellbore fluid in the form of a water-in-oil emulsion comprising a dispersed brine phase and comprising as an emulsifier at least one polymer which contains both hydrophilic units and hydrophobic units, at least some of said hydrophilic units containing sulfonate groups, and at least some of said hydrophobic units containing pendant alkyl groups having at least 8 carbon atoms, wherein the sulfonate groups have been introduced into said polymer by first preparing a precursor polymer containing units derived from at least one unsaturated carboxylic acid and/or unsaturated anhydride and then reacting at least a portion of the carboxylic acid and/or anhydride groups of the precursor polymer with a compound of general formula R | 06-23-2011 |
| 20110180257 | SYSTEM AND METHOD FOR FILTERING SAND IN A WELLBORE - A technique enables long-lasting filtering of fluid flow in a wellbore. The technique employs a base pipe and a sand control screen surrounding the base pipe. The sand control screen has a support layer, a filter media surrounding the support layer, and a protective shroud. At least one of the support layer and the protective shroud layer utilizes longitudinal ribs held in place by a transverse wire. The components of the sand control screen cooperate to provide a simple but durable system for long term filtering of sand from fluid flow in a wellbore. | 07-28-2011 |
| 20110186293 | USE OF REACTIVE SOLIDS AND FIBERS IN WELLBORE CLEAN-OUT AND STIMULATION APPLICATIONS - A method and apparatus to treat a subterranean formation including introducing a fluid comprising degradable material into a wellbore, contacting a surface of the wellbore with the fluid, and stimulating a surface of a subterranean formation, wherein the contacting the wellbore surface and stimulating the formation occur over a time period that is tailored by the properties of the degradable material. In some embodiments, the properties of the degradable material include a chemical composition, a surface area, a geometric shape of a particle of the material, a concentration of the material in the fluid, a density of the material, a dimension of a particle of the material, or a combination thereof. | 08-04-2011 |
| 20110192602 | Well Flow Control Systems and Methods - Flow control systems and methods for use in hydrocarbon well operations include a tubular and a flow control apparatus. The tubular defines a well annulus and includes an outer member defining a flow conduit. Fluid communication between the well annulus and the flow conduit is provided by permeable portion(s) of the outer member. The flow control apparatus is disposed within the flow conduit and comprises conduit-defining and chamber-defining structural members. The conduit-defining structural member(s) is configured to divide the flow conduit into at least two flow control conduits. The chamber-defining structural member(s) is configured to divide at least one of the at least two flow control conduits into at least two flow control chambers. Each of the flow control chambers has at least one inlet and one outlet, each of which is adapted to allow fluid flow therethrough and to retain particles larger than a predetermined size. | 08-11-2011 |
| 20110297375 | COMPOSTION FOR BOREHOLE TREATMENT - The invention is a composition, for use in treating oil wells, comprising fibres, hot melt adhesives and particulate solids. This composition has a wide range of applications including preventing or lessening lost circulation, wellbore strengthening or consolidation, controlling fluid loss, producing a “stress cage” effect, gravel packing, acting as an aid to cementing, and for proppant backflow control. | 12-08-2011 |
| 20120111563 | METHODS TO DELIVER FLUIDS ON A WELL SITE WITH VARIABLE SOLIDS CONCENTRATION FROM SOLID SLURRIES - The invention discloses a storable composition for oilfield application including a slurry of a carrier fluid and a particulate blend made of proppant; the particulate blend comprising at least a first amount of particulates having a first average particle size between about 100 and 5000 μm and at least 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 the particulate blend volume is sufficient to substantially avoid settling of the particulate in the carrier fluid. | 05-10-2012 |
| 20120181023 | APPARATUS AND METHOD FOR SAND CONSOLIDATION - An apparatus and method for preventing the migration of unconsolidated and/or loosely consolidated material into the wellbore. Such prevention is accomplished by introducing a well treatment comprising an expandable deployable structure into an uncosolidated zone proximate the wellbore. These deployable structures are inserted into the voids of the geological formation and using stored mechanical energy convert from an unexpanded or undeployed state to an expanded or deployed state. These deployable structures can exert forces, pressure or a combination of both in multiple directions on the surrounding media. | 07-19-2012 |
| 20120273196 | SEGMENTED CURRENT CONTROLLING METHOD OF CURRENT CONTROLLING FILTER PIPE COLUMN FOR OIL-GAS WELL AND STRUCTURE OF OIL-GAS WELL - An oil-gas well structure and a segmental flow-control method for a flow-control filter string ( | 11-01-2012 |
| 20120318505 | METHOD AND SYSTEM FOR SEGMENTAL FLOW CONTROL IN OIL-GAS WELL - A method and a system for segmental flow control in an oil-gas well are disclosed. The oil-gas well includes a first annular space ( | 12-20-2012 |
| 20130032342 | Cascading Liquid Air Removal Filter System and Method - A cascading liquid air removal filter system is disclosed. Said system comprising a filter system having a bristles element. Said bristle element comprises a plurality of bristles each having a first end and a second end. Said bristles element comprises a plurality of fluid passages between said bristles. Said filter system is attached to a column of a well having one or more sections, between said column and a casing of said well. Said filter system comprises a filter outside diameter. Said casing comprises a casing internal diameter. Said filter outside diameter is equal to or larger than said casing internal diameter. Said fluid passages comprise a plurality of non-linear paths through said bristles element for a liquid passing through said filter system. Said filter system provides only said non-linear paths for said liquid to travel from a first end to a second end of said filter system. | 02-07-2013 |
| 20130043025 | HARVESTING RESOURCE FROM VARIABLE PAY INTERVALS - A method is provided for drilling a well in a reservoir. The method includes planning a well trajectory for a serpentine well pair. The production well is drilled using lateral displacements and vertical displacements to follow a base of a pay interval in the reservoir. The production well is completed with perforations in regions comprising a hydrocarbon. At least a portion of the production well includes a liner with no perforations. | 02-21-2013 |
| 20130292116 | Methods for Controlling Formation Fines Migration - Generally, a consolidating treatment fluid includes at least an aqueous base fluid and an ultra-dilute water-based curable resin. The consolidating treatment fluid may be used in a plurality of subterranean operations to consolidate the unconsolidated particles within the subterranean formation. | 11-07-2013 |
| 20130319664 | Inflow Control Device Having Externally Configurable Flow Ports - A completion joint | 12-05-2013 |
| 20140102702 | Produced Sand Gravel Pack Process - A borehole completion method treats a formation surrounding a borehole with a chemical treatment that alters how formation particulates interact. A standalone screen deploys downhole in the borehole (either before or after the treatment) on a downhole string. When fluid is produced, formation particulates treated with the chemical treatment agglomerate in the annulus surrounding the screen in permeable structures. This can be especially when the standalone screen is useful in a cased hole having perforations. The chemical treatment includes an inner salt adapted to neutralize the zeta potential (i.e., electrokinetic potential) of the formation particulates so they aggregate into one or more permeable structures in the annulus. | 04-17-2014 |
| 20140116691 | CHEMICAL TREATMENT METHOD AND ADDITIVE USED TO TREAT FINES MIGRATION AND FLOW THROUGH POROUS MEDIA - Methods for reducing fines migration in a porous subterranean reservoir are disclosed. In certain aspects, the methods include introducing a composition comprising a water-soluble or dispersible branched polyhydroxyetheramine into the porous subterranean reservoir, maintaining a sufficient temperature in the porous subterranean reservoir for a period of time, adsorbing the composition onto a surface of the porous subterranean reservoir, and stabilizing at least a portion of the fines present in the porous subterranean reservoir. Methods for enhancing an effective permeability of a porous subterranean reservoir are also disclosed. In connection with the disclosed methods, a treatment composition can be used and in certain aspects, the treatment composition can be a reaction product of bisphenol A, an ethanol amine, diethanol amine, and a monofunctionalized polyoxyalkyleneamine. | 05-01-2014 |
| 20140116692 | Well Treatment - The present invention provides a method for the treatment of a subterranean formation which contains sand particles, said method comprising contacting said formation with a material capable of increasing the residual matrix strength of said particulate fine whereby to reduce or prevent their migration whilst minimizing any decrease in their permeability. Preferred materials include organosilanes and enzyme systems. | 05-01-2014 |
| 20140202694 | Produced Sand Gravel Pack Process - A borehole completion method treats a formation surrounding a borehole with a chemical treatment that alters how formation particulates interact. A standalone screen deploys downhole in the borehole (either before or after the treatment) on a downhole string. When fluid is produced, formation particulates treated with the chemical treatment agglomerate in the annulus surrounding the screen in permeable structures. This can be especially when the standalone screen is useful in a cased hole having perforations. The chemical treatment includes an inner salt adapted to neutralize the zeta potential (i.e., electrokinetic potential) of the formation particulates so they aggregate into one or more permeable structures in the annulus. | 07-24-2014 |
| 20140311740 | Stabilizing Unconsolidated Formation for Fines Control - A method for treating a zone of a subterranean formation penetrated by a wellbore, the method including the steps of: (A) introducing a treatment fluid through the wellbore into the zone of the subterranean formation, wherein the treatment fluid comprises an alkoxysilane having at least two alkoxy groups; (B) shutting in the zone to allow the alkoxysilane to hydrolyze in the formation under the design conditions; and (C) before or after introducing the treatment fluid into the zone, installing a mechanical sand control device in the wellbore of the zone. | 10-23-2014 |
| 20140318774 | High Pressure, High Temperature Gravel Pack Carrier Fluid with Extended Dynamic Stability for Alternate Flow Path - Fluids with high carrying capacity for particulates in high pressure environments that may also be high temperature environments may include a viscosified base fluid having a density of about 14 ppg to about 20 ppg and comprises an aqueous fluid, a salt, a gelling agent, and an oxygen scavenger. Such fluids may be utilized in methods that involve providing a sand control screen assembly disposed within a wellbore penetrating a subterranean formation; and forming a gravel pack proximal to the sand control screen assembly with a treatment fluid, wherein the treatment fluid comprises the viscosified base fluid and a plurality of particulates. | 10-30-2014 |
| 20140318775 | COMPOSITIONS AND METHODS FOR USE OF PROPPANT SURFACE CHEMISTRY TO IMPROVE PROPPANT CONSOLIDATION AND FLOWBACK CONTROL - The present invention relates to methods for hydraulically fracturing a subterranean formation to improve the production rates and ultimate recovery by contacting unconsolidated resin-coated proppant particulates residing in a propped fracture with a reactive crosslinker in order to form a consolidated proppant pack. The present invention also relates to methods for use in water injection wells to consolidate the resin-coated proppant particulates in a gravel packed or frac packed region of a wellbore. | 10-30-2014 |
| 20140352959 | DIVERTING SYSTEMS FOR USE IN LOW TEMPERATURE WELL TREATMENT OPERATIONS - The flow of a fluid may be diverted from a high permeability zone to a low permeability portion of a subterranean formation by use of particulates comprising a mixture of (i) at least one aliphatic polyester having the general formula of repeating units: | 12-04-2014 |
| 20140367099 | Degradation of Polylactide in a Well Treatment - Methods of treating a portion of a well include the steps of: (A) depositing a solid particulate into the portion of the well, wherein the solid particulate comprises an aliphatic polyester, preferably a polylactide; and (B) contacting the particulate deposited in the portion of the well with a treatment fluid comprising: (i) water; (ii) a source of a strong alkali; and (iii) a source of a strong oxidizer. The steps of depositing and contacting can be with a single treatment fluid or separate treatment fluids. | 12-18-2014 |
| 20150013980 | Flow Control Devices Including a Sand Screen and an Inflow Control Device for Use in Wellbores - A flow control device is disclosed. The device includes a tubular member having a plurality adjacent wraps, wherein each wrap has an outer surface and an inner surface. Some of the wraps include one or more flow control paths, wherein each such flow control path includes a tortuous path to control flow of a fluid from the outer surface to the inner surface. | 01-15-2015 |
| 20150021022 | ENERGIZED SLURRIES AND METHODS - Energized slurries (including foams) comprising an Apollonian particle mixture and at least one additive selected from the group consisting of viscosifiers, gelling agents and rheological agents. Also, methods, fluids, equipment and/or systems for treating a subterranean formation penetrated by a wellbore, relating to treatment fluids based on the energized slurries. | 01-22-2015 |
| 20150034314 | COATED PARTICLES AND METHODS FOR THEIR MANUFACTURE AND USE - Disclosed are coated particles, such as proppants, processes for their preparation and methods for using such particles, such as in a hydraulic fracturing process. The coated particles include a coating that includes a crystalline or semicrystalline polyester/polyurethane having a decrystallization temperature of at least 35° C. | 02-05-2015 |
| 20150041130 | System and Method for Actuating Downhole Packers - A downhole tool includes an outer tubular member and an inner tubular member. The outer tubular member may have one or more screens coupled thereto, a packer coupled thereto, and a shunt tube isolation valve coupled thereto. A first sleeve may be coupled to the packer and move from a first position to a second position. The packer may actuate into a set state when the first sleeve is moved to the second position, and the packer may isolate first and second portions of an annulus from one another when in the set state. A shunt tube may be coupled to the packer and provide a path of fluid communication from the first portion of the annulus, through the packer, and to the second portion of the annulus when the packer is in the set state. | 02-12-2015 |
| 20150047841 | Conformable Materials Containing Heat Transfer Nanoparticles and Devices Made Using Same - In one aspect, a method of forming a shape conforming material is disclosed that in one non-limiting embodiment may include: providing a base shape memory material having a glass transition temperature; and adding a selected amount of heat transfer nanoparticles to the base shape conforming material to provide the shape conforming material. In one aspect, the heat transfer nanoparticles include a core and a shell, wherein the core has a melting point below the glass transition temperature of the base shape memory material and the melting point of the shell. | 02-19-2015 |
| 20150068742 | Wellbore Completion for Methane Hydrate Production - In a completion for producing methane the bottom hole assembly has a base pipe with porous media surrounding it for equalizing flow along the base pipe. A shape memory polymer foam surrounds the porous media. The borehole can be reamed to reduce produced methane velocities. Surrounding the shape memory polymer is an exterior layer of consolidated proppant or sand that can self-adhere and/or stick to the polymer foam. The proppant or sand can be circulated or squeezed into position although, circulation is preferred. The borehole may enlarge due to shifting sands in an unconsolidated formation as the methane is produced. The bottom hole assembly helps in fluid flow equalization and protects the foam and layers below from high fluid velocities during production. | 03-12-2015 |
| 20150083414 | ORGANOPHOSPHORUS CONTAINING COMPOSITES FOR USE IN WELL TREATMENT OPERATIONS - A composite having a solid particulate and a surface modifying treatment agent on the solid particulate wherein the surface modifying treatment agent has a hydrophobic tail and an anchor for adhering the hydrophobic tail onto the solid particulate. The anchor is an organophosphorus acid derivative. The composite may be used as a proppant in a hydraulic fracturing operation as well as a sand control particulate in a gravel packing operation. The presence of the surface modifying treatment agent on the surface of the solid particulate reduces the generation of fines and dust as well as the migration of sand during a hydraulic fracturing operation or a sand control operation. The presence of the surface modifying treatment agent on the surface of the solid particulate further enhances the crush resistance of the solid particulate. | 03-26-2015 |
| 20150083415 | COMPOSITES FOR USE IN STIMULATION AND SAND CONTROL OPERATIONS - A composite having a solid particulate and a surface modifying treatment agent on the solid particulate wherein the surface modifying treatment agent has a hydrophobic tail and an anchor for adhering the hydrophobic tail onto the solid particulate. The anchor may be metal and the hydrophobic tail may be an organo-silicon material, a fluorinated hydrocarbon or both an organo-silicon material and a fluorinated hydrocarbon. The composite may be used as a proppant in a hydraulic fracturing operation as well as a sand control particulate in a gravel packing operation. The presence of the surface modifying treatment agent on the surface of the solid particulate reduces the generation of fines and dust as well as the migration of sand during a hydraulic fracturing operation or a sand control operation. The presence of the surface modifying treatment agent on the surface of the solid particulate further enhances the crush resistance of the solid particulate. | 03-26-2015 |
| 20150101803 | METHOD AND SYSTEM FOR SEALING AN ANNULUS ENCLOSING A TUBULAR ELEMENT - The invention provides a method and system for sealing an annulus enclosing a tubular element in a wellbore. The method comprises the steps of: i) introducing a first drilling fluid in the wellbore; ii) drilling an open hole section of the wellbore using a drilling tool suspended at the end of a tool string; iii) pumping a second drilling fluid comprising particles into the wellbore; iv) filtering the particles out of the second drilling fluid near a downhole end of the tubular element; v) extending the tubular element into the open hole section of the wellbore while directing at least part of the filtered particles to an annulus between the tubular element and a wellbore wall. Steps i) to v) may be repeated as often as required. | 04-16-2015 |
| 20150300132 | TUBULAR FLOW CONTROL APPARATUS AND METHOD OF PACKING PARTICULATES USING A SLURRY - A tubular flow control apparatus includes, a first screen surrounding a first tubular defining a first annular space therebetween, a second screen surrounding a second tubular defining a second annular space therebetween, and a third tubular positioned longitudinally between the first tubular and the second tubular having at least one passageway fluidically connecting the first annular space with the second annular space, the third tubular having at least one opening fluidically connecting the at least one passageway to a third space located radially outwardly of the third tubular. | 10-22-2015 |
| 20150300133 | SCREEN PACKER ASSEMBLY - Disclosed is a screen packer assembly for use in filtering hydrocarbons in a wellbore at a subterranean location. The screen-packer assembly connects in a production tubing string and packs off the wellbore and provides an axial filter path for hydrocarbons through the assembly and into the productions tubing. | 10-22-2015 |
| 20150337633 | DOWNHOLE SYSTEM WITH FILTERING AND METHOD - A downhole system includes a tubular having a plurality of spaced apertures radially extending through a wall of the tubular. A section of the tubular blocking radial fluid flow through the wall between an interior and exterior of the tubular. The section arranged from a first end to a second end of the tubular. A plurality of filter pucks respectively inserted into at least some of the plurality of apertures. The filter pucks each including a body configured for insertion in one of the apertures and a filtering element within each body; and, at least one control or monitoring line arranged on the section. Further is a method of controlling sand in a downhole system. | 11-26-2015 |
