| Entries |
| Document | Title | Date |
|---|
| 20080202758 | Method for using and transporting a non-emulsified organic peroxide-containing composition - A method of using an organic peroxide containing composition as a gel breaker and a method of transporting the composition is disclosed, wherein the composition has a freeze point less than or equal to −10° C. and a diluent which contains water and an organic solvent selected from ethylene glycol, methanol, ethanol and 1-propanol. During shipment, the amount of available oxygen in the composition is less than or equal to 1 weight percent. | 08-28-2008 |
| 20080236832 | Method for Treating Subterranean Formation - A method is for treating a subterranean formation penetrated by a wellbore is given which comprises injecting into the subterranean formation a well treatment fluid having a high pH. The well treatment fluid comprises a viscoelastic surfactant having a degradable linkage, a hydrolysable fiber and a pH control material | 10-02-2008 |
| 20080264641 | Blending Fracturing Gel - The present disclosure relates to a system and method for producing a well-fracturing gel using a gel concentrate such that the method and system are capable of timely adjusting the properties of the gel on the fly just prior to introducing the gel into the well. Further, the present disclosure provides for producing a gel with an overall shorter production time as well as adjusting the properties of the gel just prior to injecting the gel into the well. | 10-30-2008 |
| 20080314595 | Well Jet Device and the Operating Method Thereof - The device comprises a body provided with bypass ports embodied therein and an insert with a jet pump and sealing elements. The insert comprises a pass channel, a channel for supplying an active medium to the pump nozzle, a channel which is used for supplying a pumped-out medium to the pump and which communicates with the pass channel and an output channel connected to an annular space. A mounting seat for a sealing unit is embodied in the pass channel above the channel for supplying the pumped-out medium. Said mounting seat is provided with an axial channel for passing a cable, which is used for moving instruments along the well bore, therethrough and through the pass channel. An axially movable spring-loaded steady bush provided with bypass holes in the wall thereof is arranged in the body. The insert provided with the pump is placed on the mounting seat embodied in the bush. An annular recess limiting the bush displacement is embodied in the body. The output channel is connected to a body surrounding space when the bush is in the lower position thereof and the bypass ports are closed by the steady bush wall when the bush is in the top position. Said invention makes it possible to reduce a time for a well examination and development. | 12-25-2008 |
| 20100006293 | FRACTURING METHOD FOR SUBTERRANEAN RESERVOIRS - A method of creating multiple fractures in a well traversing a formation is described using pressurized fluids in a highly deviated or horizontal section of the well at a pressure above the fracturing pressure of the formation, wherein for creating a fracture the pressurized fluid is alternated between an acid fracturing fluid and a proppant loaded fluid, such that the proppant blocks the flow of pressurized fluid into a fracture created during a previous step of the method and the subsequently pressurized acid fracturing fluid creates a new fracture at a location along the highly deviated or horizontal section different from the location of the previously created fracture. | 01-14-2010 |
| 20100059227 | STIMULATED OIL PRODUCTION USING REACTIVE FLUIDS - This invention relates to methods for stimulating oil production from well by pumping reactive stimulation fluids from the well into the formation. The methods are particularly relevant to cold heavy oil production. This invention provides methods of stimulating production from a formation surrounding a well, comprising pumping a fluid from the well into the formation so as to create a hydraulic fracture, wherein the fluid contains one or more reactive species that destabilise cohesive forces in the formation matrix, and allowing the fluid to leak of into the formation and react with the formation matrix so as to produce a destabilised zone in the formation around the location of the fracture such that formation fluids and sand particles can be produced from the formation through the zone and into the well. The methods preferably comprise selecting the fluid so as to produce an at least partially unconsolidated formation matrix in the destabilised zone. It is particularly preferred to produce fluids from the formation so as to cause worm-holing in the destabilised zone. The fluid can contain additives in liquid form, solid or granular form. It is also preferred that the fluid acts as a diluent for heavy oil and can also modify formation fluid rheology. | 03-11-2010 |
| 20100101796 | 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. | 04-29-2010 |
| 20100200239 | FRICTION REDUCING COMPOSITIONS FOR WELL TREATMENT FLUIDS AND METHODS OF USE - Friction reducing compositions for use in well treatment fluids generally include an aqueous fluid; a polymeric friction reducer; and 3,5-dimethyl-1,3,5-thiadiazinane-2-thione. It has been found that the combination of the polymeric friction reducer; and 3,5-dimethyl-1,3,5-thiadiazinane-2-thione unexpectedly and synergistically increases friction reduction and inversion behavior, where applicable. Also disclosed are methods for the fracturing of a subterranean hydrocarbon bearing formation to stimulate the production of the hydrocarbons by injecting the friction reducing composition. | 08-12-2010 |
| 20100212905 | METHOD AND SYSTEM USING ZETA POTENTIAL ALTERING COMPOSITIONS AS AGGREGATING REAGENTS FOR SAND CONTROL - Methods and systems are disclosed for well completion and/or production, where an aggregating, agglomerating or conglomerating composition is injected into a producible formation, zone or interval thereof to alter an aggregation or zeta potential of formation surfaces and particulate to increase a maximum sand free production rate. | 08-26-2010 |
| 20100276151 | Dual Functional Components and Associated Methods - Many methods and compositions are provided. One of the methods provided comprises the steps of: providing an aqueous treatment fluid that comprises a polysaccharide and a dual functional component, the aqueous treatment fluid having a first viscosity; allowing the dual functional component to interact with the polysaccharide such that the viscosity of the aqueous treatment fluid increases to a second viscosity, the second viscosity being greater than the first viscosity; placing the aqueous treatment fluid into a subterranean formation; and allowing the dual functional component to interact with the polysaccharide so as to reduce the second viscosity of the aqueous treatment fluid to a third viscosity, the third viscosity being less than the second viscosity. An example of a composition is a viscosified treatment fluid for treating subterranean formations comprising: an aqueous base fluid and an apparent cross linked reaction product of a polysaccharide and a dual functional component. | 11-04-2010 |
| 20100276152 | ACIDIC AQUEOUS SOLUTION CONTAINING A CHELATING AGENT AND THE USE THEREOF - The present invention relates to an acidic aqueous solution containing a chelating agent and an acid, wherein the chelating agent is glutamic acid N,N-diacetic acid (GLDA) or a salt thereof and wherein the amount of GLDA or the salt thereof is at least 10 wt %, based on the weight of the aqueous solution, and to the use thereof as an oilfield chemical, in descaling processes, or in processes in which highly concentrated aqueous acids are used, such as cleaning processes or plating processes. | 11-04-2010 |
| 20100294500 | METHOD OF IMPROVING THE CONDUCTIVITY OF A FRACTURE IN THE SPACE BETWEEN PROPPANT PILLARS - The invention relates to the area of oil-and-gas production, based on hydraulic fracturing method and can be used for enhancement of the well production. The method for enhancement of fracture conductivity comprises the chemical treatment of the fracture surface and the space between the proppant pillars over the protective mask formed by material precipitated out from the said proppant pillar. | 11-25-2010 |
| 20100307757 | AQUEOUS SOLUTION FOR CONTROLLING BACTERIA IN THE WATER USED FOR FRACTURING - Methods and apparatus of embodiments of the invention relate to a system for treating a subterranean formation including mixing equipment to form a fluid comprising sodium hypochlorite and sodium diacetate; and pumps and a tubular to introduce the fluid into the subterranean formation, wherein a surface of the subterranean formation contains at least 15 percent less microorganisms than if no sodium hypochlorite were in the fluid. Methods and apparatus of embodiments of the invention relate to a method of producing a petroleum product from a wellbore including using a well treatment system comprising mixing equipment, pumps, and a tubular, forming a fluid comprising sodium hypochlorite and sodium diacetate; and introducing the fluid to the well treatment system to achieve a reduced population of microorganisms in the system. Methods and apparatus of embodiments of the invention relate to a system, comprising: a subterranean formation, a well treatment apparatus comprising mixing equipment, pumps, and a tubular, and a fluid comprising sodium hypochlorite and sodium diacetate to achieve a reduced population of microorganisms in the system. Methods and apparatus of embodiments of the invention relate to a method for treating a subterranean formation, comprising forming a fluid comprising sodium hypochlorite, a buffer, and a polymer; introducing the fluid to a surface of a subterranean formation; and decreasing a population of microorganisms, wherein the surface of the subterranean formation contains at least 15 percent less microorganisms than if no sodium hypochlorite were in the fluid, and wherein the fluid exhibits a pH of about 4.0 to about 7.5. Methods and apparatus of embodiments of the invention relate to a method for treating a subterranean formation, comprising forming a fluid comprising sodium hypochlorite and sodium diacetate; and introducing the fluid to a subterranean formation, wherein forming the fluid does not include introducing an acid, and wherein forming the fluid does not include forming a precipitate. | 12-09-2010 |
| 20110005761 | Degradable Diverting Agents and Associated Methods - Methods and compositions that include a method comprising: providing a treatment fluid comprising at least a plurality of degradable diverting agents that comprise at least one degradable material selected from the group consisting of a fatty alcohol, a fatty acid salt, a fatty ester, a proteinous material, and a combination thereof; and introducing the treatment fluid into a subterranean formation during a subterranean operation via a well bore. | 01-13-2011 |
| 20110168396 | 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. | 07-14-2011 |
| 20110174492 | Surfactants and Friction Reducing Polymers for the Reduction of Water Blocks and Gas Condensates and Associated Methods - Improved treatment fluids and methods for use in subterranean operations including the treatment of low permeability shale formations. In one embodiment the methods comprise: providing a treatment fluid comprising an aqueous base fluid and a controlled wetting system that comprises: a water soluble polymer having a charge, a surfactant having an opposite charge, and a compatibilizer; and introducing the treatment fluid into a subterranean formation. | 07-21-2011 |
| 20110220363 | Method of Treating a Wellbore Having Annular Isolation System - A well treatment fluid containing borated galactomannan may be used to isolate a productive zone in a well having multiple productive zones. The fluid is particularly useful in treatment of wells containing a mechanical zonal isolation system in the productive zone of interest. The fluid is pumped into the well in a substantially non-hydrated form. The well treatment fluid is therefore highly effective in preferentially sealing or blocking productive zones in the formation since delayed hydration of the fluid may be controlled for up to several hours. | 09-15-2011 |
| 20110303415 | FAR FIELD DIVERSION TECHNIQUE FOR TREATING SUBTERRANEAN FORMATION - This invention relates to an aqueous-swellable and degradable diverting system and the use of the system in treating a subterranean formation penetrated by a wellbore. The diverting system comprises a carrier fluid and a partially dehydrated or anhydrous borate source material that does not swell or does not swell substantially when placed in contact with the carrier fluid. The carrier fluid is capable of carrying and placing the borate source material into a stimulation network substantially distanced from a wellbore. The carrier fluid may be a non-aqueous fluid, or when the average size of the borate source material is sufficient large, the carrier fluid may also be an aqueous fluid. Exposure of the diverting composition to sufficient amount of aqueous fluid swells the borate source material, bridges a desired portion of the stimulation network and then dissolves at least a portion of the diverting composition. The diverting techniques of the invention allow for treatment in a subterranean formation to be diverted to a previously untreated portion of the formation, in particular a portion of the formation that is significantly distanced from the wellbore. | 12-15-2011 |
| 20120012325 | HIGH TEMPERATURE STABILIZER FOR WELL TREATMENT FLUIDS AND METHODS OF USING SAME - A method of fracturing a subterranean formation by introducing into the formation a high temperature well treatment fluid containing a polymeric gel and an electron donating compound comprising phenothiazine or a phenothiazine derivative. The high temperature well treatment fluid may further contain a crosslinking agent or the polymeric gel may be crosslinked. The electron donating compound performs as a stabilizer in the treatment of wells having a subterranean formation temperature of up to about 500° F. (260° C.). | 01-19-2012 |
| 20120090848 | MODIFICATION OF SOLID POLYSACCHARIDE WITH TRANSESTERIFICATION AGENT - Polysaccharides are reacted with transesterification agents forming modified products that: (1) have increased viscosifying efficiency, i.e., higher viscosities at reduced concentrations compared to the unmodified polysaccharide; or (2) are insolubilized at temperature ranges for which the unmodified polysaccharide would hydrate fully; or (3) both properties. In some cases, the insolubilized polysaccharides can be activated to dissolve and viscosify at specific temperature ranges by using pH modifiers. A method of treating a well is provided, including the steps of: (a) forming a treatment fluid comprising water and a modified polysaccharide, wherein the modified polysaccharide is characterized by having been made by the process of combining: (i) a water-soluble polysaccharide, wherein the polysaccharide is in a solid form during the combining step; and (ii) a transesterification agent, wherein the transesterification agent is in liquid form; wherein the step of combining is in the presence of less than 10% by weight water relative to the water-soluble polysaccharide and wherein any water present is at a pH of 8 or less; and (b) introducing the treatment fluid into the well. | 04-19-2012 |
| 20120325484 | INTEGRATED ZONAL CONTACT AND INTELLIGENT COMPLETION SYSTEM - Systems and methods for producing from multiple zones in a subterranean formation are provided. The system can include a liner including a first frac valve, a second frac valve, and a formation isolation valve. The second frac valve can be positioned above the first frac valve, and the formation isolation valve can be positioned above the second frac valve. A completion assembly can be disposed at least partially within the liner. The completion assembly can include a valve shifting tool adapted to actuate the formation isolation valve between an open position and a closed position. The completion assembly can also include a first flow control valve in fluid communication with the first frac valve and a second flow control valve in fluid communication with the second frac valve. | 12-27-2012 |
| 20130014953 | Multi-Zone Screened Frac System - A multi-zone screened frac system combines screens with integrated check valves, frac valves, and optional shunt tubes for slurry dehydration. The system can also include fiber optic technology. In particular, the system uses sliding sleeves and flow devices for each section. The sliding sleeves open with dropped balls or a service tool, and the flow devices have screens and act as check valves. Dehydration tubes can also be used. The system does not require a crossover tool, and in some implementations, the system does not even require a complete service tool. | 01-17-2013 |
| 20130105167 | Novel Method for Enhancing Fracture Conductivity | 05-02-2013 |
| 20130126176 | Dual-Phase Acid-Based Fracturing Composition With Corrosion Inhibitors and Method of Use Thereof - A dual-phase acid-based fracturing composition with corrosion inhibitors and method for use in acid-based matrix and fracturing operations in oil and gas wells is provided. The composition includes an acid, a hydrocarbon, a hydrocarbon-soluble corrosion inhibitor, an acid-soluble corrosion inhibitor, and an acid-soluble inhibitor aid. | 05-23-2013 |
| 20130153234 | SLICKWATER FRACTURING FLUID - Described is a slickwater fracturing fluid containing base water having up to 300,000 ppm total dissolved solids; a viscosifier; a scale inhibitor; and a surfactant composition. The surfactant composition contains at least one dibasic ester, at least one non-ionic surfactant, at least one terpene or terpene derivative and optionally at least one polyalkylene glycol. | 06-20-2013 |
| 20130180723 | FRACTURING FLUIDS INCLUDING AMINE OXIDES AS FLOWBACK AIDS - An aqueous fracturing fluid comprises an environmentally friendly flowback aid. The flowback aid includes an amine oxide having the formula (CH | 07-18-2013 |
| 20130192839 | SELECTIVE FRACTURE FACE DISSOLUTION - A method is given for acid fracturing a subterranean formation for improving the flow of fluids. The principal source, optionally the sole source, of the acid is a solid acid-precursor, optionally injected with an additional solid that is inert and that masks a portion of the newly created fracture faces so that the fracture face etching by the acid is not uniform. The method ensures a good flow path for fluids between the fracture tip and the wellbore. | 08-01-2013 |
| 20130206416 | Earth Metal Peroxide Fluidized Compositions - Disclosed is an alkaline earth metal peroxide concentrate, or fluidized suspension, for addition to aqueous hydraulic fracturing fluids to efficiently decrease the viscosity of the hydrated, hydrophilic polysaccharide polymer in the system. The concentrate comprises a hydrophobic, water insoluble liquid, an organophilic clay suspension agent, a polar activator, a sparingly-soluble alkaline earth metal peroxide, and an anionic surfactant. Advantageously, these concentrations, or suspensions, exhibit high flash points, making them easier to transport using commercial transportation means. | 08-15-2013 |
| 20130255954 | NOVEL AQUEOUS FRACTURING FLUID COMPOSITION AND FRACTURING PROCESS USING THE COMPOSITION - Fracturing fluid comprising, in solution in water, a proppant and an associative amphoteric polymer, the said polymer having a molecular weight of at least 1 000 000 g/mol and comprising:
| 10-03-2013 |
| 20130264061 | METHOD FOR TREATING HYDROCARBON-BEARING FORMATIONS WITH FLUORINATED AMINE - A method of modifying a surface of a hydrocarbon-bearing formation is disclosed. The method includes contacting the surface of the hydrocarbon-bearing formation with a fluorinated amine, and the surface of the hydrocarbon-bearing formation includes a carbonate. The method can typically include introducing a treatment composition comprising solvent and at least one of the fluorinated amine or a salt thereof into the carbonate hydrocarbon-bearing formation. Hydrocarbon-bearing formations treated according to the method are also disclosed. Certain fluorinated amines useful for treating carbonate hydrocarbon-bearing formations and methods of making them are also disclosed. | 10-10-2013 |
| 20130312975 | Process for Water Wetting Oil-Wet Surfaces - Process for water-wetting oil-wet surfaces by applying an aqueous formulation comprising at least one wettability modifier which is a water-soluble ester of an alkoxylated saccharide to the oil-wet surface. The oil-wet surfaces may be any hydrophobic surfaces such as the rocks of subterranean oil-bearing formations. | 11-28-2013 |
| 20130341030 | METHODS OF IMPROVING HYDRAULIC FRACTURE NETWORK - The complexity of a fracture network may be enhanced during a hydraulic fracturing operation by monitoring operational parameters of the fracturing job and altering stress conditions in the well in response to the monitoring of the operational parameters. The operational parameters monitored may include the injection rate of the pumped fluid, the density of the pumped fluid or the bottomhole pressure of the well after the fluid is pumped. The method provides an increase to the stimulated reservoir volume (SRV). | 12-26-2013 |
| 20140014348 | SELF-SUSPENDING PROPPANTS FOR HYDRAULIC FRACTURING - The invention provides for modified proppants, comprising a proppant particle and a hydrogel coating, wherein the hydrogel coating localizes on the surface of the proppant particle to produce the modified proppant, methods of manufacturing such proppants and methods of use. | 01-16-2014 |
| 20140014349 | FRACTURING OPERATIONS EMPLOYING CHLORINE DIOXIDE - A method includes introducing a treatment fluid into a wellbore penetrating a subterranean formation, the treatment fluid including a polymer gel having a water-soluble polymer, a proppant, and a polymer gel-preserving amount of chlorine dioxide, the placing step includes applying the treatment fluid at a sufficient pressure and at a sufficient rate to fracture the subterranean formation. | 01-16-2014 |
| 20140027121 | METHOD FOR HYDRAULICALLY FRACTURING A SUBTERRANEAN RESERVOIR - A method for hydraulically fracturing a subterranean reservoir. A fracturing fluid comprising a clay stabilizer is provided at an uphole temperature. The uphole temperature allows the fracturing fluid to be for provided at a downhole temperature in the reservoir greater than a cloud point of hydrocarbons in the reservoir. The fracturing fluid is injected into the reservoir at a controlled injection rate to propagate a fracture in the reservoir and mitigate vertical height growth of the fracture. Proppant is introduced into the fracturing fluid to provide a fracturing slurry. The fracturing slurry is injected into the reservoir at the controlled injection rate to prop the fracture. | 01-30-2014 |
| 20140054042 | Centre For The Preparation Of Additives For Hydraulic Fracturing Operations And Hydraulic Fracturing Process Employing The Preparation Centre - Compact and transportable preparation centre which can be used for fracturing operations on gas or oil fields, capable of metering out and dissolving two different polymers in the powder form, and including: two pneumatic means respectively supplying two storage hoppers for two separate polymers; two means for supplying and metering the polymer originating respectively from the two storage hoppers to a device for dispersing by grinding, also denoted PSU; two series of tanks for hydration and dissolution of the polymers connected to the dispersing and grinding device; two positive displacement vacuum pumps for metering the two solutions each originating from the two series of hydration and dissolution tanks and intended to supply a mixer itself connected to a high-pressure injection pump. Fracturing process employing the preparation centre. | 02-27-2014 |
| 20140090849 | Methods and Compositions for In Situ Microemulsions - A plurality of first VES micelles may be converted into second VES micelles for subsequent formation of an in situ microemulsion downhole. The in situ microemulsion may include at least a portion of second VES micelles, e.g. spherical micelles, and a first oil-based internal breaker to initially aid in breaking the VES gelled aqueous fluid. The in situ microemulsion may increase the rate of flowback of an internally broken VES treatment fluid, increase the volume of treatment fluid recovered, increase the relative permeability or decrease water saturation of a hydrocarbon stream, e.g. oil, gas, and the like; reduce capillary pressure and water-block in the reservoir; enhance the solubilization and dispersion of VES molecules, internal breakers, and/or internal breaker by-products produced when breaking a VES gel; reduce the interfacial tension and/or the contact angle at the fluid-rock interface, reduce the water/oil interfacial tension, keep the reservoir surfaces water-wet, etc. | 04-03-2014 |
| 20140090850 | SHALE OIL AND GAS FRACTURING FLUIDS CONTAINING ADDITIVES OF LOW ENVIRONMENTAL IMPACT - The present invention relates to improved chemical additives for use in hydraulic fracturing fluids for the recovery of oil or natural gas entrained in deep-layer shale formations. Many chemical agents currently in use in such water/sand (or other proppants) mixtures could pose human and animal health risks if these chemicals migrate from the shale beds into the environment contaminating the water table, rivers, streams and lakes. The fracturing fluid chemical additives of this invention are designed to be retained or anchored in or near the deep shale layers and are prevented, or greatly delayed from upward migration. Specifically, many chemical additives required for proper fracturing fluid performance can be chemically bonded to inert particulate materials before incorporation into said fluids. The fracturing fluid chemical additives are able to perform their function in the shale fracturing process, and then become nearly permanently trapped in the shale layers protecting the environment above. | 04-03-2014 |
| 20140096971 | NEW METHOD AND ARRANGEMENT FOR FEEDING CHEMICALS INTO A HYDROFRACTURING PROCESS AND OIL AND GAS APPLICATIONS - A method of rapidly and essentially simultaneously creating and feeding a dispersion into a hydrocarbon process stream. This method allows for the effective use of chemical additives in a hydrocarbon process line that are highly unstable or that are very difficult to disperse. This is especially helpful in hydrofracturing operations as the very rapid flow rates require very fast dispersion formations. As a result the method allows greater fracking pressures which can be obtained with lower energy inputs and by using lessor amounts of chemical additives. As a result hydrocarbon extraction can be accomplished in a manner which is both more environmentally friendly as well as less expensive. | 04-10-2014 |
| 20140166294 | CYSTINE PROTEASES FOR BACTERIAL CONTROL - The current application generally relates to the use of cysteine proteases in water pretreatment that reduce or eliminate premature enzymatic breakage of polysaccharide injection fluids. Plant enzymes can be used as a control method to interrupt bacterium capabilities to interact and destroy polysaccharidases and other enzymes that may prematurely break frack fluids and other biological thickening agents. Possible enzymes come from a group of proteins known as cystine endopeptidases such as bromelain, papain, calpain, and ficain, and the like. | 06-19-2014 |
| 20140174747 | System and Apparatus for Creating a Liquid Carbon Dioxide Fracturing Fluid - A method, system, and apparatus required for creating a mixture of dry proppant and liquid carbon dioxide (LCO | 06-26-2014 |
| 20140246199 | METHOD OF FRACTURING WITH LIQUEFIED NATURAL GAS - The production of hydrocarbons from a hydrocarbon bearing formation is enhanced by introduction into the formation a non-aqueous fluid containing a liquefied natural gas. | 09-04-2014 |
| 20140251623 | FRACTURING SYSTEMS AND METHODS FOR A WELLBORE - Systems, units, and methods usable to stimulate a formation include a first supply subsystem adapted to provide a first medium to the formation and a pressure subsystem that includes a pump in communication with the first medium to pressurize the first medium to a pressure sufficient to stimulate the formation. Usable media can include non-gelled liquid alkanes, halogenated hydrocarbons, foamed hydrocarbons, propylene carbonate, a fluidized solid proppant material that behaves as a liquid under threshold conditions, or a liquid material adapted to solidify under threshold conditions. A proppant can be supplied in addition to the first medium when performing fracturing operations. Usable proppant can include materials having a size or density adapted to facilitate buoyancy, hollow materials, composite materials, porous materials, or crystalline materials. | 09-11-2014 |
| 20140262293 | TEMPERATURE SENSITIVE VISCOELASTIC WELL-TREATMENT FLUIDS - The present invention is directed to fracturing fluids having temperature-sensitive viscosities. The fracturing fluids may include a mixture of a hydrophobically associative polymer (HAP) and a surfactant in an aqueous medium, wherein the surfactant imparts a critical solution temperature (CST) to the fluid. The fluid is more viscous at temperatures lower than the CST as compared to temperatures above the CST. | 09-18-2014 |
| 20140262294 | Methods of Treating a Subterranean Formation with One-Step Furan Resin Compositions - Methods including providing at least one target interval in a wellbore, wherein the at least one target interval has a temperature of at least about 70° F. to at least about 290° F.; providing a pad fluid; providing a treatment fluid comprising proppant particulates coated with a one-step furan resin composition, wherein the one-step furan resin composition comprises a furan polymer, a hydrolyzable ester, a silane coupling agent, a surfactant, and a solvent; introducing the pad fluid into the wellbore at a rate and pressure sufficient to create or enhance at least one fracture within the target interval; introducing the treatment fluid into the wellbore so as to deposit the proppant particulates coated with the one-step furan resin composition into the at least one fracture; and setting the one-step furan resin composition so as to form at least a partially consolidated permeable proppant pack in the at least one fracture. | 09-18-2014 |
| 20140262295 | ENCAPSULATED PROPPANTS - A capsule for carrying a proppant for emplaced in a formation containing formation fluid by a hydraulic fracture operation using a fracturing fluid. The capsule includes a capsule body. The capsule body includes a proppant. There is a surface layer on the capsule body that is permeable to the formation fluid or the fracturing fluid or is permeable to both the formation fluid and the fracturing fluid. The proppant material is dry cement that interacts with the formation fluid or the fracturing fluid or both the formation fluid and the fracturing fluid that migrate through the surface layer and is taken up by the dry cement causing the dry cement to harden. | 09-18-2014 |
| 20140284059 | AMIDE BRANCHED AROMATIC GELLING AGENTS - A downhole fluid comprises a base fluid, for example a hydrocarbon base fluid, and a gelling agent. The gelling agent has an aromatic core of one or more aromatic rings, the gelling agent having two or more amide branches distributed about the aromatic core, each of the two or more amide branches having one or more organic groups. An example gelling agent is a pyromellitamide gelling agent. The pyromellitamide gelling agent may have the general formula of: | 09-25-2014 |
| 20140305649 | Submicron particles surfactant method for improved oil recovery from subterranean reservoirs - Methods of stimulating a well comprising providing a stimulation fluid comprising at least one surfactant and submicron particles, the submicron particles having a particle size between about 200 nm and about 800 nm and a specific surface area greater than about 5 square meters per gram; and introducing the stimulation fluid into a wellbore. Additional methods to enhance oil recovery from subterranean reservoirs accessible via a well are described. | 10-16-2014 |
| 20140367110 | GEOMECHANICAL WEAKENING WITH SURFACE ACTING AGENTS - A method of hydraulic fracturing of a reservoir to improve drainage. | 12-18-2014 |
| 20140374108 | METHOD FOR FRACTURING SUBTERRANEAN ROCK - A method of hydraulically fracturing a subterranean formation is provided. The method comprises generating a primary fracture using a fracturing fluid. The method further comprises extending the primary fracture and/or creating micro fractures about the primary fracture by initiating a chemical reaction such as an exothermic reaction at about the primary fracture. In one embodiment, the fracturing fluid is used to convey one of the reactive components participating in the chemical reaction. | 12-25-2014 |
| 20150041138 | NOVEL AGENT FOR INHIBITING THE SWELLING OF CLAYS, COMPOSITIONS COMPRISING SAID AGENT AND METHODS IMPLEMENTING SAID AGENT - The present invention concerns the use of a novel additive as an agent for inhibiting the swelling of clays, in particular in the field of boreholes. More specifically, the present invention concerns the use of a specific diamine and diacid salt as an agent for inhibiting the swelling of clays in an aqueous medium, and a drilling or hydraulic fracturing fluid composition comprising the salt according to the invention and methods for drilling or hydraulic fracturing implementing said salt. | 02-12-2015 |
| 20150047849 | FLOW BACK AIDS - The present invention discloses liquid quaternary ammonium salts that can be used to treat and coat the surfaces of the proppant sand or inorganic particles that are used in down-hole oil well fracturing operations as well as the containment structure and that these treated surfaces will cause water and oils to flow faster through the porous structure. These liquid quaternary ammonium salts can be chosen from a list that includes but is not limited to cocobis(2-hydroxyethyl)ethylammonium ethyl sulfate, benzylcocobis(hydroxyethyl)ammonium 2-ethyl-hexylsulfate, dibenzylcocobishydroxyethyl ammonium phenolsulfonate, didecyldimethyl-ammonium dodecylbenzenesulfonate and tallow-bis(2-hydroxyethyl)ethylammonium ethyl sulfate. | 02-19-2015 |
| 20150068755 | METHODS AND COMPOSITIONS FOR USE IN OIL AND/OR GAS WELLS - Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives. | 03-12-2015 |
| 20150090457 | Selective Removal of Silica From Silica Containing Brines - This invention relates to a method for selective removal of silica and silicon containing compounds from solutions that include silica and silicon containing compounds, including geothermal brines. | 04-02-2015 |
| 20150107844 | WELL TREATMENT FLUIDS CONTAINING BIODEGRADABLE ZIRCONIUM CROSSLINKER AND METHODS OF USING THE SAME - A fracturing fluid containing a hydratable viscosifying polymer and a zirconium acetylacetonate crosslinker provides a green alternative to conventional systems. The zirconium aceylacetonate is dissolved in benzyl alcohol or in a mixture of benzyl alcohol and 2,2-dimethyl-1,3-dioxolan-4(yl)-methanol. The pH of the fracturing fluid may be between from about 3.5 to about 11.5. The fracturing fluid may contain an acidic buffering agent or a basic buffering agent. The fracturing fluid may be pumped into a well in order to initiate or enlarge a fracture within a subterranean formation penetrated by the well. | 04-23-2015 |
| 20150114653 | METHOD FOR REMEDIATION OF SUBTERRANEAN-FORMED METAL-POLYMER COMPLEXES USING A METAL COMPLEXING AGENT - This disclosure describes formulations and methods for remediating subterranean-formed metal-polymer complexes in wells in subterranean formations. In one embodiment, the method includes injecting a metal-polymer complex remediation mixture containing a metal complexing agent into a subterranean formation adjacent to a well at a pressure below the fracture pressure of the formation. A sufficient contact time is allowed and then the metal-polymer complex remediation mixture is pumped from the subsurface. This has been shown to remediate polymer-containing, subterranean-formed metal-polymer complexes in shale formations. Without being held to a particular theory it appears that the metal complexing agent is forming metal complexes with the metals in the complexes, and particularly divalent metal ions. This removal of naturally occurring metals may be un-crosslinking and causing the metal-polymer complexes to go into solution, thereby removing the blockages caused by the metal-polymer complexes. | 04-30-2015 |
| 20150307769 | PERMEABILITY OF SUBTERRANEAN RESERVOIRS USING ACID DIVERSION - Methods for acid diversion in a hydrocarbon-containing subterranean formation are disclosed. The methods include injecting an acid diversion agent comprising a water-soluble or dispersible branched polyhydroxyetheramine and injecting an acidic solution into a well which is in contact with the hydrocarbon-containing subterranean formation. Preferably, the acid solution is diverted toward a zone of the formation that has a lower permeability to fluid than an adjacent zone. This process improves the permeability of the hydrocarbon-containing subterranean formation to hydrocarbons, while decreasing the permeability of the formation to water or brine. | 10-29-2015 |
| 20150308250 | APPARATUS, SYSTEMS, AND METHODS FOR FRACTURING A GEOLOGICAL FORMATION - The present disclosure relates, according to some embodiments, to apparatus, systems, and methods of fracturing a geological structure including the application of kinetic energy (e.g., from high velocity frack fluid) to a subterranean structure. In some embodiments, the present disclosure relates to apparatus, systems, and methods for delivery of high velocity fluid to a well using a down hole valve and/or throttling system. The present disclosure relates to apparatus, systems, and methods of generating pressure using accumulators (e.g., high pressure accumulators) at the surface of a well. | 10-29-2015 |
| 20150353814 | DUAL-PHASE ACID-BASED FRACTURING COMPOSITION WITH CORROSION INHIBITORS AND METHOD OF USE THEREOF - A dual-phase acid-based fracturing composition with corrosion inhibitors and method for use in acid-based matrix and fracturing operations in oil and gas wells is provided. The composition includes an acid, a hydrocarbon, a hydrocarbon-soluble corrosion inhibitor, an acid-soluble corrosion inhibitor, and an acid-soluble inhibitor aid. | 12-10-2015 |
| 20150353815 | METHOD OF FRACTURING SUBTERRANEAN FORMATIONS - Method of fracturing subterranean formations using aqueous compositions comprising at least an aqueous base fluid, proppants, a viscosifier, at least one flowback aid and removing at least a portion of the aqueous fracturing fluid from the formation after fracturing. The flowback aid is selected from the group of alkyl or alkenyl polyglucosides, carboxylated alkyl or alkenyl polyglucosides and alkoxylated branched alcohols. | 12-10-2015 |
| 20150353816 | FRACTURING SYSTEMS AND METHODS INCORPORATING HUMAN INGESTIBLE PRODUCTS - The disclosure contained herein provides fracturing systems and methods including human ingestible materials. | 12-10-2015 |
| 20150377002 | ENVIRONMENTALLY FRIENDLY BASE FLUIDS AND METHODS FOR MAKING AND USING SAME - Non-toxic, biodegradable base fluids are disclosed for use in making downhole fluids, where the base fluids include blends of paraffins, olefins, naphthenes, esters, and oxygenates, having low viscosities, having a pale-yellow color, having a flashpoint of >80° C. (175° F.) and have a pour point of about 19° F. Methods for making and using fluids include the base fluids of this invention are also disclosed | 12-31-2015 |
| 20160017210 | Synergistic Effect of Cosurfactants on the Rheological Performance of Drilling, Completion and Fracturing Fluids - The invention relates to the viscoelastic surfactant based fluids and methods for utilizing same in oilfield applications including, but not limited to gravel packing, cleanup, drilling, acidizing, fracturing and the like in a subterranean formation. The viscoelastic fluid of the invention comprises at least one amphoteric surfactant and at least one synergistic cosurfactant that increases the gel strength and extends the brine tolerance of said viscoelastic-based fluid. | 01-21-2016 |
| 20160024367 | VISCOSIFIER POLYMER FOR TREATMENT OF A SUBTERRANEAN FORMATION - Various embodiments disclosed relate to a viscosifier polymer for treatment of a subterranean formation, and methods and systems including the same. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a viscosifier polymer. The method can also include placing the composition in a subterranean formation. | 01-28-2016 |
| 20160053164 | HYDRAULIC FRACTURING APPLICATIONS EMPLOYING MICROENERGETIC PARTICLES - Microenergetic particles can be employed in hydraulic fracturing of oil or gas wells. By exciting the microenergetic particles, an operator performing a fracture job can better map the fracture process and/or increase the extent of fracturing over what can be accomplished using only pumps. By deploying microenergetic particles during the fracturing of an oil or gas well, but not exciting the microenergetic particles until there is a reduction of production, an operator can extend the time periods between well stimulations. | 02-25-2016 |
| 20160083639 | MULTI-FUNCTIONAL SURFACTANT COMPLEXES FOR USE IN SUBTERRANEAN FORMATIONS - Systems and methods for creating and/or using multi-functional surfactant complexes that may enhance surfactant treatments in subterranean formations are provided. In some embodiments, the methods comprise: providing a treatment fluid comprising an aqueous base fluid and one or more multi-functional surfactant complexes that comprise at least one surfactant and at least one polymeric additive, wherein the surfactant and the polymeric additive carry opposite charges; and introducing the treatment fluid into a well bore at a well site penetrating at least a portion of a subterranean formation. | 03-24-2016 |
| 20160102246 | Stabilization of High Molecular Weight Polysaccharide Solutions at High Temperatures - A fluid mixture containing a high molecular weight polysaccharide composition with improved viscosity stability at high downhole temperatures and pressures encountered in common oil field applications, including hydraulic fracturing stimulation, drilling, cementing, and coil-tubing. The composition includes a salicylic acid solution, which, being a free-radical scavenger, prevents free-radical reactions within the high molecular weight polysaccharide that would otherwise adversely affect viscosity. The composition may also include an ascorbic acid solution, which reduces at least a portion of the oxidized salicylic acid to restore its function as a free-radical scavenger to prevent additional free-radical reactions with the high molecular weight polysaccharide. An alcohol solvent may also be utilized to increase the solution loading of salicylic acid. | 04-14-2016 |
| 20160102538 | THREE-PHASE METHOD FOR INJECTING CARBON DIOXIDE INTO OIL RESERVOIRS - The disclosed method comprises a first injection phase that comprises injecting a first gas-based fluid into a subterranean formation at a first pressure that exceeds a fracture pressure of the subterranean formation. A second injection phase occurs that comprises injecting a second gas-based fracturing fluid into the subterranean formation at a second pressure that exceeds a minimum miscibility pressure of the second gas-based fluid, followed by a shut in period. A third injection phase is performed that comprises injecting the first gas-based fluid or a third gas-based fluid into the subterranean formation at the first fracture pressure or at a third pressure exceeding the fracture pressure of the subterranean formation. In one embodiment, the first gas-based fluid, second gas-based fluid, and third gas-based fluid comprise carbon dioxide (CO | 04-14-2016 |
| 20160115374 | FRACTURING FLUID VISCOSITY-CONTROLLING AGENT TO BE USED IN HYDRAULIC FRACTURING - A fracturing fluid viscosity-controlling agent is described. The fracturing fluid viscosity-controlling agent is capable of maintaining the high viscosity of the fracturing fluid during fracture formation in hydraulic fracturing and of reducing the viscosity during recovery of the fracturing fluid. A fracturing fluid which includes the viscosity-controlling agent is provided as well as a crude oil or natural gas drilling method using the fracturing fluid with the viscosity-controlling agent. This viscosity-controlling agent contains polyalkylene oxide and a viscosity-reducing agent and is in the form of a tablet. | 04-28-2016 |
| 20160137901 | CLAY INHIBITORS FOR DRILLING, FRACTURING, AND OTHER PROCEDURES - Reaction products produced by reacting a maleated tall oil fatty acid and/or a maleated soy oil fatty acid with an ethylene amine material are used as clay inhibitors in drilling fluids and in hydraulic fracturing fluids for drilling wells and for fracturing subterranean formations, and are also used as clay inhibitors in other treatment fluids for treating wells or subterranean formations. | 05-19-2016 |
| 20160145483 | WELL TREATMENT - Methods of treating a subterranean formation penetrated by a well bore, by providing a treatment fluid providing a treatment fluid comprising non-bridging fibers and particles comprising a degradable material,; by introducing the treatment fluid into the well bore; and by creating a plug with the treatment fluid. | 05-26-2016 |
| 20160160117 | TREATMENT FLUIDS CONTAINING POLYSACCHARIDES WITH FRICTION REDUCING GRAFTS THEREON - Method of treating a portion of a subterranean formation comprising: providing an aqueous-based treatment fluid comprising a friction-reducing grafted polymer wherein the friction-reducing grafted polymer comprises a friction-reducing polymer grafted to the polymer backbone; and, placing the aqueous-based treatment fluid into a portion of a subterranean formation. The treatment fluid may be (a) a fracturing fluid that is placed within the subterranean formation at a pressure sufficient to create or extend at least one fracture within the portion of the subterranean formation; (b) a gravel packing fluid, further including particulates, placed into a wellbore annulus within the subterranean formation to form a particulate pack therein; or (c) a frac-packing fluid, further including particulates, placed within the formation to pack a fracture within the formation with particulates and to fill a wellbore annulus within the subterranean formation adjacent to the fracture with a gravel pack. | 06-09-2016 |
| 20160168955 | Equipment And Method Enabling To Directly Use Powder Polymer In Hydraulic Fracturing | 06-16-2016 |
| 20160186045 | COMPOSITION INCLUDING FUNCTIONALIZED POLYSACCHARIDE FOR TREATMENT OF SUBTERRANEAN FORMATIONS - Various embodiments disclosed relate to compositions including functionalized polysaccharide for treatment of subterranean formations and methods and systems including the same. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in a subterranean formation a composition including a functionalized polysaccharide that includes a hydroxy(C | 06-30-2016 |
| 20160194549 | METHOD FOR RECOVERY OF GASEOUS HYDROCARBONS AND/OR LIQUID HYDROCARBONS FROM UNDERGROUND | 07-07-2016 |
| 20160251565 | METHOD FOR PRODUCING HYDROCARBON FLUID FROM HYDROCARBON FLUID-RICH SHALE | 09-01-2016 |
| 20160251569 | Constraining Pyrite Activity in Shale | 09-01-2016 |
| 20170233629 | DRILLING MUD COMPOSITION WITH ALOE VERA PARTICLES AND A FRACKING PROCESS USING THE SAME | 08-17-2017 |
