| Entries |
| Document | Title | Date |
|---|
| 20080196892 | Enzyme enhanced oil recovery (EEOR) for waterflooding operations - The present disclosure involves the release or recovery of subterranean hydrocarbon deposits and, more specifically, to a system and method for secondary and/or enhanced oil recovery (EOR), by utilizing waterflooding compositions that include enzymes as well as methods for injecting waterflooding compositions into subterranean formations for oil recovery operations. | 08-21-2008 |
| 20080308273 | System for Separating a Waste Material from a Produced Gas and Injecting the Waste Material into a Well - Produced natural gas containing carbon dioxide is dehydrated and chilled to liquefy the carbon dioxide and then fractionated to produce a waste stream of liquid carbon dioxide and hydrogen sulfide. Natural gas liquids may be first separated and removed before fractionation. After fractionation, the waste stream is pressurized and transmitted to a remote injection well for injection either for disposal of the waste stream and preferably to urge hydrocarbons toward the producing well. A hydrocarbon stream proceeds from fractionation to a methanol absorber system which removes carbon dioxide gas. The hydrocarbon stream is thereafter separated into at least hydrocarbon gas, nitrogen and helium. Some of the nitrogen is reintroduced into a fractionation tower to enhance the recovery of hydrocarbons. A methanol recovery system is provided to recover and reuse the methanol. The hydrocarbons are sold as natural gas and the helium is recovered and sold. Excess nitrogen is vented. | 12-18-2008 |
| 20090056941 | METHODS FOR PRODUCING OIL AND/OR GAS - A method for producing oil and/or gas comprising a method for producing oil from an underground formation comprising injecting an enhanced oil recovery formulation and a gas into a first well in the formation; forming a mixture comprising the enhanced oil recovery formulation and the oil in the formation; forming a gas cap with the injected gas; forcing the formulation and oil mixture towards a second well in the formation; and producing the formulation and oil mixture from the second well. | 03-05-2009 |
| 20090200026 | METHOD FOR RECOVERY OF NATURAL GAS FROM A GROUP OF SUBTERRANEAN ZONES - A method for recovering natural gas from a group of subterranean zones containing natural gas, including injecting an amount of a displacing gas into a first subterranean zone, producing a first produced gas from the first subterranean zone, collecting an amount of the first produced gas wherein the quality of the collected first produced gas is higher than or equal to a threshold production quality for the first produced gas, injecting an amount of the first produced gas into a second subterranean zone wherein the quality of the injected first produced gas is higher than or equal to a threshold injection quality for the first produced gas, producing a second produced gas from the second subterranean zone, and collecting an amount of the second produced gas wherein the quality of the collected second produced gas is higher than or equal to a threshold production quality for the second produced gas. | 08-13-2009 |
| 20090211757 | UTILIZATION OF GEOTHERMAL ENERGY - Fluid is introduced to one or more underground fluid passages in thermal contact with a hot rock formation. Kinetic energy of the fluid being introduced is converted into electrical energy. The introduced fluid absorbs heat from the hot rock formation. That absorbed heat is extracted from the heated fluid for use in connection with a domestic or industrial application. | 08-27-2009 |
| 20090236093 | Apparatus and Method for Extracting Petroleum from Underground Sites Using Reformed Gases - Provided herein are methods and apparatus for removing oil or natural gas from the ground. In one example, the method may include reforming a fuel source by reaction with water to generate driver gas, and injecting the driver gas into the oil well. The reforming operation may include causing the combustion of a combustible material with ambient oxygen for the release of energy; and heating a reforming reaction fuel and water sources, with the energy released from the combustion of the combustible material, to a temperature above that required for the reforming reaction wherein the fuel and water sources are reformed into driver gas. In one example, the amount of the combustible material combusted is sufficient to result in the release of enough energy to heat an amount of the reforming reaction fuel and water sources to the temperature above that required for the reforming reaction to proceed. The driver gas may be used to help extract oil from the ground and especially oil from depleted oil wells. It may also be used to drive natural gas trapped underground or in coal beds to the surface. | 09-24-2009 |
| 20090272532 | METHOD FOR INCREASING THE RECOVERY OF HYDROCARBONS - The invention relates to methods for increasing the recovery of hydrocarbons from a subterranean reservoir. A method may include the steps of injecting a first fluid into a first horizontal well in the reservoir by a first device; producing hydrocarbons from a second horizontal well disposed below the first well; injecting a second fluid into a third well laterally offset from each of the first and second wells while continuing to produce hydrocarbons from the second well; and selectively ceasing injection into the first well when the second well is in fluid communication with the third well. The first and second fluid may comprise steam, carbon dioxide, oxygen, or combinations thereof. Injection into the first well selectively may be ceased when pressure in the first well is increased to a first injection pressure. | 11-05-2009 |
| 20090301717 | METHOD AND A DEVICE FOR DESTRUCTING ORGANIC MATERIAL IN INJECTION WATER AND USE OF INJECTION WATER FOR GENERATION OF DESTRUCTIVE HYDROXYL RADICALS - A method and a device ( | 12-10-2009 |
| 20100000732 | Method for optimizing IN-SITU bioconversion of carbon-bearing formations - Processes relating to the production of methane, carbon dioxide, gaseous and liquid hydrocarbons, and other valuable products from subterranean carbon bearing formations, in-situ, are disclosed. In a preferred embodiment, such production utilizes indigenous and/or non-indigenous microbial consortia that are capable of converting a carbon bearing material such as shale or coal to desired products. In a particularly preferred embodiment there is provided a process for bioconverting a carbon-bearing subterranean formation, wherein the process comprises injecting fluid into a carbon bearing deposit with at least one injection well and removing injected fluid and product from the deposit through at least one production well, and controlling fluid pressure within at least a portion of the deposit by use of the injected fluid, the pressure being controlled such that the fluid pressure within at least a portion of the deposit exceeds the fluid pressure that normally exists in that portion. | 01-07-2010 |
| 20100006285 | SUSTAINABLE METHOD FOR RECOVERY OF PETROLEUM - The present invention comprises a method of Enhanced Petroleum Recovery (EPR) combining technical, economic, environmental and social effectiveness to increase the recovery factor of onshore or offshore fields having a high degree of exploitation, more precisely through the use of a substance miscible with the diverse types of petroleum of low fluidity found in various regions. More specifically, the present invention refers to the use of solvents such as light liquid fractions of petroleum, for example diesel oil and gas oil, a light petroleum, and the essential oils derived from renewable sources such as for example biodiesel, used pure or mutually admixed in any proportion, for injection into a geological formation through an injection well, there resulting a final mixture (petroleum/injected solvent) presenting much lower viscosity and much greater fluidity than the original petroleum, having an impact throughout the petroleum production chain. The present patent presents real gains in all phases of the production chain. | 01-14-2010 |
| 20100038082 | PORTABLE RENEWABLE ENERGY SYSTEM FOR ENHANCED OIL RECOVERY (PRESEOR) USING BIOMASS HAVING NET NEGATIVE CO2 EMISSIONS AND FOR GENERATING ELECTRICITY HAVING ZERO CO2 EMISSIONS - The Portable Renewable Energy System for Enhanced Oil Recovery (“PRESEOR”) is a truck mobile system that reforms biomass into CO | 02-18-2010 |
| 20100059222 | Power Lift Generator - The present invention relates to device for increasing the production flow in a production tubing, comprising at least one inlet for adding a fluid medium and means to provide the added fluid at an angle α between 90 and zero degrees with a longitudinal axis of the tubing. This effect is further enhanced by means for rotating the added fluid medium. A method for increasing the production flow in a production tubing is also disclosed. | 03-11-2010 |
| 20100065268 | IN SITU HEAVY OIL AND BITUMEN RECOVERY PROCESS - The present invention is directed to an in situ reservoir recovery process that uses a horizontal well located near the top of a reservoir and an inclined production well to extract bitumen or heavy oil from a reservoir. In a first stage, the top well is used for cold production of reservoir fluids to the surface, in which, reservoir fluids are pumped to the surface in the absence of stimulation by steam or other thermal and/or solvent injection. A lower production well is drilled into the formation below the top well. The top well is converted to an injection well or, if no cold production then a top well is drilled as an injector well. A portion of the bottom well is inclined so that one end of the incline is closer to the injector well than the other end of the incline. In the process, steam circulation creates a heated zone at the point of the two wells that are closest together in the reservoir. | 03-18-2010 |
| 20100071899 | Wellsite Surface Equipment Systems - A system for powering wellsite surface equipment comprises at least one prime mover in communication with a fuel source for powering the prime mover and having at least one heat source, at least one pump arranged to be driven by the prime mover, the at least one pump in fluid communication with at least one wellbore and at least one fluid for use in the wellbore, and at least one auxiliary system in communication with the heat source from the at least one prime mover. | 03-25-2010 |
| 20100101788 | Multi-Point Chemical Injection System - A technique enables injection of treatment chemicals at a plurality of desired locations along a well. A multi-point chemical injection system is connected and deployed into a wellbore. The multi-point chemical injection system delivers one or more treatment chemicals along the wellbore to the desired locations at a plurality of injection zones. A single control line is run from a surface location down through the wellbore to the plurality of injection zones. The single control line is used to deliver the treatment chemical to each of the injection zones. | 04-29-2010 |
| 20100108315 | Method for reducing the H2S content of an H2S-containing subterranean formation - A process to reduce the hydrogen sulfide content of a hydrogen sulfide-containing subterranean formation and of products recovered from the subterranean formation by injecting sulfur dioxide into the subterranean formation. | 05-06-2010 |
| 20100126720 | METHOD FOR PROVIDING A PREFERENTIAL SPECIFIC INJECTION DISTRIBUTION FROM A HORIZONTAL INJECTION WELL - A method for distributing injection fluid in a horizontal well bore in fluid communication with hydrocarbon bearing formation begins by determining flow resistance characteristics of the formation along at least a portion of the length of the horizontal well bore. An injection tubing string having a sidewall defining a tubing bore is injected into the horizontal well bore. The tubing string is provided with ports having a selected distribution and geometry. The annulus geometry is selectively controlled along the length of the tubing string through at least one of axial distribution of eccentricity and flow area of the annulus, so as to provide selected flow restriction characteristics along the annulus, such that when injection fluid is pumped into the tubing, a resulting flow resistance network is formed by the tubing bore, the ports, the annulus and the formation, resulting in a desired distribution of the fluid into the formation. | 05-27-2010 |
| 20100132942 | HYDROCARBON RESERVOIR TREATMENT METHOD WITH HYDROCARBONS - A hydrocarbon well treatment fluid is made recyclable by introducing a laminar flow enhancer into the fluid, resulting in a formulation called Slick Oil™ hydrocarbon fluid. A method of using a fluid in the treatment of a hydrocarbon reservoir is disclosed. A hydrocarbon fluid is injected into the hydrocarbon reservoir, the hydrocarbon fluid comprising hydrocarbons and a hydrophobic laminar flow enhancer. The hydrocarbon fluid is recovered from the hydrocarbon reservoir. The recovered hydrocarbon fluid is then cleaned by removing contaminants from the recovered hydrocarbon fluid that have been introduced into the hydrocarbon fluid from the hydrocarbon reservoir. The hydrocarbon fluid is then re-used by injecting the cleaned and recovered hydrocarbon fluid into at least one subsequent hydrocarbon reservoir. Proppant carrying abilities of a hydrocarbon fracturing fluid are enhanced by introducing a laminar flow enhancer into the fluid, resulting in a formulation called Slick Oil™ hydrocarbon fluid. | 06-03-2010 |
| 20100163226 | SUPERCRITICAL FLUID RECOVERY AND REFINING OF HYDROCARBONS FROM HYDROCARBON-BEARING FORMATIONS APPLYING FUEL CELL GAS IN SITU - A plume of combined gases are infused into hydrocarbon-bearing formations, “inert” as the major gas and “reactive” as the minor gas, where the minor gas reacts with hydrocarbons to fully saturate hydrocarbons with supercritical fluid, which migrate hydrocarbons out of formations, even at great distances from the regulated fuel cell source. Coal, tar sands, petroleum-contaminated soil, and/or oil wells that have lost gas pressure can also be desorbed by this in-situ method. | 07-01-2010 |
| 20110005747 | METHOD AND SYSTEM FOR ENHANCED OIL RECOVERY - A system and method for gas injection enhanced oil recovery is disclosed herein. The method includes the step of burning solid fuel and an oxygen-bearing gas in a combustion chamber. The method also includes the step directing an output stream of the burning step through a fluid pathway extending from the combustion chamber and underground to push oil toward a well. The method includes the step maintaining the pressure in the combustion chamber above ambient during the burning step. | 01-13-2011 |
| 20110073307 | Forming Structures in a Well In-Situ - Structures can be formed downhole by accumulating already existing materials and/or materials introduced into a well to perform a specified function. The formed structures may be used to obstruct fluid flow of production or injection fluids, carry mechanical loads, control electrical or magnetic properties of components, mechanically actuate a component, as well as others. The materials may be induced to form the specified structure, such as by application of a potential downhole. For example, electrical, magnetic, sonic, biological potentials, or a combination thereof may be established downhole to form specified structures in specified locations to perform specified functions. | 03-31-2011 |
| 20110088898 | PRODUCING GASEOUS HYDROCARBONS FROM HYDRATE CAPPED RESERVOIRS - A method for recovering gas from a subterranean formation having a hydrate deposit located therein and a gas reservoir located under the hydrate deposit that includes injecting a hydrate-forming fluid into an upper region of the gas reservoir neighboring the hydrate deposit; and producing gaseous hydrocarbons from a lower region of the gas reservoir is disclosed. | 04-21-2011 |
| 20110094737 | SHEAR-ACTIVATED VISCOELASTIC SURFACTANT FLUID AND METHOD - A well treatment composition is formed from a fluid mixture of a viscoelastic surfactant and a liquid carrier fluid. The fluid mixture has rheological properties wherein the mixture exhibits shear-thickening behavior when the shear rate is increased from a first shear rate to a second higher shear rate. The fluid mixture may further include a shear activation additive that interacts with the viscoelastic surfactant to facilitate the shear-thickening behavior. The method is accomplished by introducing the fluid mixture into a wellbore formed in a subterranean formation. In certain applications, the fluid mixture may be recycled by bringing the fluid mixture to the surface and reintroducing the fluid into the same or a different wellbore. | 04-28-2011 |
| 20110162839 | RETROFIT WELLBORE FLUID INJECTION SYSTEM - A fluid injection system for a wellbore includes an adapter configured to be retained in a safety valve landing nipple. The landing nipple is disposed in a production tubing inserted in the wellbore. The adapter includes a first sealed fluid passage between a part of the tubing disposed above the adapter and a first fluid injection line disposed in a part of the tubing below the adapter. The adapter includes a second sealed fluid passage between a part of the tubing below the adapter and a second fluid injection line disposed inside the tubing above the adapter. The second fluid injection line extends to a wellhead at an upper end of the wellbore. | 07-07-2011 |
| 20110272151 | SYSTEMS AND METHODS FOR PRODUCING OIL AND/OR GAS - A method comprising recovering a carbon source from a formation; converting at least a portion of the carbon source to a synthesis gas; converting at least a portion of the synthesis gas to an ether; and injecting at least a portion of the ether into the formation. | 11-10-2011 |
| 20110272152 | Operating Wells In Groups In Solvent-Dominated Recovery Processes - To recover oil, including viscous oil, from an underground reservoir, a cyclic solvent-dominated recovery process may be used. A viscosity reducing solvent is injected, and oil and solvent are produced. Unlike steam-dominated recovery processes, solvent-dominated recovery processes cause viscous fingering which should be controlled. To control viscous fingering, operational synchronization is used within groups and not between adjacent groups. | 11-10-2011 |
| 20110303410 | SYSTEMS AND METHODS FOR PRODUCING OIL AND/OR GAS - A system for producing oil and/or gas from an underground formation comprising a first well above the formation; a second well above the formation; the first well comprises a mechanism to inject a miscible enhanced oil recovery formulation into the formation; the first well comprises a seal comprising a fluorinated polymer, the seal adapted to contain the miscible enhanced oil recovery formulation within a tubular; and the second well comprises a mechanism to produce oil and/or gas from the formation. | 12-15-2011 |
| 20120152534 | Systems and Methods For Dual Reinjection - Methods for hydrocarbon recovery from a subsurface formation include removing a mixture comprising hydrocarbons and particulate solids from a first formation. At least a portion of the hydrocarbons are separated from the particulate solids. The particulate solids are separated into a plurality of streams. A mixed slurry comprising a first portion of the plurality of streams is injected through a first pipe into the first formation. A waste stream comprising a second portion of the plurality of streams is injected through a second pipe into a second formation. The first formation and the second formation lie in a substantially vertical line. | 06-21-2012 |
| 20120267097 | MULTI-STEP SOLVENT EXTRACTION PROCESS FOR HEAVY OIL RESERVOIRS - There is disclosed a multi-step in situ extraction process for heavy oil reservoirs using a solvent having various steps, including, removing, from areas in contact with said heavy oil, solvent blockers to create voids and to increase an interfacial area of unextracted heavy oil contactable by said solvent and injecting solvent in vapour form into the voids to raise the reservoir pressure until sufficient solvent is present in a liquid form to fill the voids and to contact said increased interfacial area of said heavy oil. Next the reservoir is shut in for a period of time to permit said solvent to diffuse into said unextracted oil across said interfacial area from the solvent filled voids in a ripening step to create a reduced viscosity blend of solvent and oil and one or more reservoir characteristics is measured to confirm the extent of solvent dilution that has occurred of the unextracted oil in the reservoir. Then gravity drainage based production is started from the reservoir once the blend has a viscosity low enough to permit the blend to drain through said reservoir to a production well. | 10-25-2012 |
| 20120285681 | Method for Optimizing In-Situ Bioconversion of Carbon-Bearing Formations - Processes relating to the production of methane, carbon dioxide, gaseous and liquid hydrocarbons, and other valuable products from subterranean carbon bearing formations, in-situ, are disclosed. In a preferred embodiment, such production utilizes indigenous and/or non-indigenous microbial consortia that are capable of converting a carbon bearing material such as shale or coal to desired products. In a particularly preferred embodiment there is provided a process for bioconverting a carbon-bearing subterranean formation, wherein the process comprises injecting fluid into a carbon bearing deposit with at least one injection well and removing injected fluid and product from the deposit through at least one production well, and controlling fluid pressure within at least a portion of the deposit by use of the injected fluid, the pressure being controlled such that the fluid pressure within at least a portion of the deposit exceeds the fluid pressure that normally exists in that portion. | 11-15-2012 |
| 20130000895 | SIMULATING INJECTION TREATMENTS FROM MULTIPLE WELLS - Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to simulating injection treatments applied to a subterranean formation from multiple well bores in the subterranean formation. A subterranean formation model representing rock blocks of a subterranean formation is received. Information on multiple injection treatments for multiple well bores in the subterranean formation is received. The subterranean formation model and the information on the injection treatments is used to predict a response of each of the rock blocks to forces acting on the rock block during the injection treatments. The injection treatments may include, for example, multiple fracture treatments for simultaneous application to the subterranean formation. In some implementations, injection treatments may be designed for a multiple-well bore system based on the predicted response of the rock blocks. | 01-03-2013 |
| 20130020079 | TREATMENT OF SUBTERRANEAN WELLS 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, electrolyzed alkaline water, and/or stabilized acidic water. In such cases, the electrolyzed acidic water, the electrolyzed alkaline water, and/or the stabilized acidic water is introduced to the well. While the electrolyzed 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 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. | 01-24-2013 |
| 20130025858 | SOLVENT AND GAS INJECTION RECOVERY PROCESS - A process for the recovery of hydrocarbon such as bitumen/EHO from a hydrocarbon bearing formation in which are situated an upper injection well and a lower production well, the method comprising the steps: preheating an area around and between the wells by circulating hot solvent through the completed interval of each of the wells until sufficient hydraulic communication between both wells is achieved; injecting one of more hydrocarbon solvents into the upper injection well at or above critical temperature of the solvent or solvent mixture, thereby causing a mixture of hydrocarbon and solvent to flow by gravity drainage to the lower production well; and producing the hydrocarbon to the surface through the lower production well. A non-condensable gas may be injected into the solvent chamber created by the hydrocarbon solvent. | 01-31-2013 |
| 20130105153 | SYSTEM AND METHOD FOR CONVERTING CLASS II HYDRATE RESERVOIRS | 05-02-2013 |
| 20130118736 | Methods and Systems For Machine - Learning Based Simulation of Flow - There is provided a method for modeling a hydrocarbon reservoir that includes generating a reservoir model that has a plurality of coarse grid cells. A plurality of fine grid models is generated, wherein each fine grid model corresponds to one of the plurality of coarse grid cells that surround a flux interface. The method also includes simulating the plurality of fine grid models using a training simulation to obtain a set of training parameters, including a potential at each coarse grid cell surrounding the flux interface and a flux across the flux interface. A machine learning algorithm is used to generate a constitutive relationship that provides a solution to fluid flow through the flux interface. The method also includes simulating the hydrocarbon reservoir using the constitutive relationship and generating a data representation of a physical hydrocarbon reservoir in a non-transitory, computer-readable medium based on the results of the simulation. | 05-16-2013 |
| 20130140021 | IN-SITU UPGRADING OF BITUMEN OR HEAVY OIL - A method is disclosed for in-situ upgrading bitumen or heavy oils during thermal recovery operations. In one embodiment, steam injection for thermal recovery of bitumen in a dolomitic or limestone reservoir matrix material can be carried out at a higher temperature, a higher pressure, a longer dwell time or a combination of all three to allow the mobilized bitumen to remain in contact with the catalytic materials in the dolomitic or limestone reservoir matrix material for longer times at higher temperatures and pressures. In another embodiment, catalytic materials such as for example, oxides or carbonates of calcium, magnesium, potassium, nickel and/or iron can be injected into the reservoir along with steam to further enhance catalytic activity during the heating, mobilization and recovery phases of a thermal recovery operation. | 06-06-2013 |
| 20130146285 | PROCESS AND WELL ARRANGEMENT FOR HYDROCARBON RECOVERY FROM BYPASSED PAY OR A REGION NEAR THE RESERVOIR BASE - Hydrocarbons may be produced from a well which comprises a contour section that follows a contour of a depression on a contoured base above which the reservoir is formed. Hydrocarbons may also be produced from a first well in a gravity-controlled recovery process and a second well which extends under and across the first well. For recovery of hydrocarbons from a reservoir, a pair of injection and production wells may be positioned and configured to optimize an initial rate of production from a pay region in the reservoir, and another well for producing hydrocarbons may be located below the production well and be positioned and configured to optimize an amount of hydrocarbon recovery from the pay region. | 06-13-2013 |
| 20130199779 | ENHANCING THE START-UP OF RESOURCE RECOVERY PROCESSES - A method and systems are provided for the enhancement of a start-up of a resource recovery process. The system includes a well pair including a production well at a first elevation and an injection well at a higher elevation. The well pair is configured to force an initial fluid communication between the production well and the injection well to occur at a selected region along a completion of the production well and a completion of the injection well. | 08-08-2013 |
| 20130199780 | RECOVERY FROM A HYDROCARBON RESERVOIR - A method and systems for using a non-volatile solvent to recover heavy oils are provided. In a method a solvent that includes a non-volatile component is injected into the reservoir. A mobilizing fluid is injected into the reservoir. Fluid is produced from the reservoir, wherein the fluid comprises the solvent, the mobilizing fluid, and the hydrocarbons from the reservoir. | 08-08-2013 |
| 20130199781 | Method and System for Fracture Stimulation by Formation Displacement - The present techniques provide methods and systems for fracturing reservoirs without directly treating them. For example, an embodiment provides a method for fracturing a subterranean formation. The method includes causing a volumetric increase in a zone proximate to the subterranean formation so as to apply a mechanical stress to the subterranean formation, creating a fracture network in the subterranean formation to improve permeability therein. | 08-08-2013 |
| 20130206405 | METHODS AND SYSTEMS FOR IN-SITU EXTRACTION OF BITUMEN - Methods and systems for in situ extraction of bitumen from deposits of bitumen-containing material are described. The methods and systems can generally include establishing freeze walls within the deposit of bitumen-containing material to establish a confined zone into which solvents can be injected in order to extract bitumen from the bitumen-containing deposits. Different types of solvents can be sequentially injected in order to extract bitumen and also help reduce the amount of solvent left behind in the deposit. | 08-15-2013 |
| 20130213650 | OPTIMIZED CHEMICAL ENHANCED RECOVERY METHOD - The invention relates to an enhanced recovery method that optimizes the stages of pumping, transport and surface treatment of the production effluent. The method of the invention comprises the following stages:
| 08-22-2013 |
| 20130228332 | DERIVATIVES OF TRIS(2-HYDROXYPHENYL)METHANES, PREPARATION THEREOF AND USE THEREOF FOR MINERAL OIL PRODUCTION - Novel derivatives of tris(2-hydroxyphenyl)methanes which have, as functional groups, polyalkoxy groups unmodified or modified with terminal hydrophilic groups, preparation of such compounds and use thereof, especially for mineral oil production. | 09-05-2013 |
| 20130327523 | METHOD OF RECOVERING OIL FROM A SUBTERRANEAN FORMATION - Method of recovering oil from a subterranean formation which comprises a step of injecting an aqueous composition comprising alkyl and/or alk(en)yl oligolucoside (ether) carboxylates into the subterranean formation and method of alkali-surfactant flooding and alkali-surfactant-polymer-flooding using such alkyl and/or alk(en)yl oligolucoside (ether) carboxylates. | 12-12-2013 |
| 20130341018 | Recovery From A Subsurface Hydrocarbon Reservoir - Methods and systems for improving recovery from a subsurface hydrocarbon reservoir are described. A method includes drilling a horizontal well in a zone proximate to a contiguous section of cap rock over a reservoir interval. A refrigerant is flowed through the horizontal well to freeze water in the zone, forming a freeze wall in contact with the contiguous section of cap rock. A chamber is formed above the reservoir interval, wherein the chamber includes the contiguous section of cap rock and at least one freeze wall. | 12-26-2013 |
| 20130341019 | REMEDIATION AND EXTRACTION METHODS USING CITRUS BASED SOLVENTS - The present invention relates to methods of extracting hydrocarbons from an oil matrix, either above the surface or in site in an oil deposit and to methods for treating soils contaminated with hydrocarbons and other contaminants. The methods of the present invention are based on the use of a citrus-based solvent and ultrasound energy to extract hydrocarbons from an oil matrix and to treat soils contaminated with organic and/or inorganic contaminants. | 12-26-2013 |
| 20140000881 | Process for extracting dissolved methane from hydropressured aquifers | 01-02-2014 |
| 20140000882 | PETROLEUM RECOVERY PROCESS AND SYSTEM | 01-02-2014 |
| 20140000883 | PETROLEUM RECOVERY PROCESS AND SYSTEM | 01-02-2014 |
| 20140000884 | PETROLEUM RECOVERY PROCESS AND SYSTEM | 01-02-2014 |
| 20140034305 | Method of Enhancing the Effectiveness of a Cyclic Solvent Injection Process to Recover Hydrocarbons - Described is a method of operating a cyclic solvent-dominated recovery process (CSDRP) for recovering viscous oil from a subterranean reservoir of the viscous oil to enhance recovery effectiveness. The cyclic solvent process involves using an injection well to inject a viscosity-reducing solvent into a subterranean viscous oil reservoir. Reduced viscosity oil is produced to the surface using the same well used to inject solvent. The process of alternately injecting solvent and producing a solvent/viscous oil blend through the same wellbore continues in a series of cycles until additional cycles are no longer economical. Conventionally, the solvent composition remains constant over time within each injection cycle and among cycles. In the present method, by contrast, the solvent composition is varied over time thereby providing operational benefits as described herein. | 02-06-2014 |
| 20140090838 | ALKYLAROMATIC SULFONATES FOR ENHANCED OIL RECOVERY PROCESS - An alkylaromatic sulfonate is disclosed wherein the alkyl group contains a distribution of alkyl chain lengths which comprise greater than 15 weight percent and up to about 35 weight percent of C | 04-03-2014 |
| 20140096958 | Method, apparatus and composition to increase recovery of hydrocarbons by reaction of selective oxidizers and fuels in the subterranean environment - A method, apparatus and composition are described for safe energy delivery down hole resulting in increased recovery of subterranean hydrocarbons. The method utilizes the reaction of non-alkane fuels and selective oxidizers which are non-selective toward alkane chemical compounds. The energy released in the subterranean reaction is utilized to heat the wellbore, the formation or the formation hydrocarbons thereby lowering fluid viscosity and permitting greater flow especially for heavy oils. Further, safe delivery of oxidizers can be accomplished without limit on depth as the selective oxidizer may be delivered to point of use down hole as most all formations of interest contain primarily alkane hydrocarbons and will not react with the non-alkane selective oxidizer. In addition some products of reaction may be insoluble in water and can be utilized for fluid loss prevention, flow diversion, abrasive drilling and or as proppants. | 04-10-2014 |
| 20140124199 | Tubular Assembly and Method of Deploying A Downhole Device Using A Tubular Assembly - A tubular assembly is disclosed for use in a wellbore ( | 05-08-2014 |
| 20140166280 | HYDROCARBON RECOVERY EMPLOYING AN INJECTION WELL AND A PRODUCTION WELL HAVING MULTIPLE TUBING STRINGS WITH ACTIVE FEEDBACK CONTROL - System and method for producing fluids from a hydrocarbon reservoir where an injector well segment and parallel underlying producer well segment are both completed with slotted liners. The injector and producer segments are logically partitioned into corresponding sections to define a plurality of injector-producer section pairs. Injection tubing strings supply stimulating fluid (e.g., saturated steam) to associated sections of the injector segment for injection into the hydrocarbon reservoir. Surface-located control devices control the pressure of the stimulating fluid flowing through the respective injection tubing strings. Production tubing strings (with the aid of artificial lift) carry fluids produced from associated sections of the producer segment. A plurality of controllers is provided for the injector-producer section pairs to control at least one process variable (e.g., interwell subcool temperature) associated with respective injector-producer section pairs over time by adjusting control variables that dictate operation of the control devices for the injection tubing strings. | 06-19-2014 |
| 20140202692 | METHOD FOR THE IN SITU RECOVERY OF HEAVY OIL FROM A SUBTERRANEAN DEPOSIT - A method for extracting bitumen from a subterranean oil sand deposit including: drilling a portion of the deposit; fragmenting the drilled deposit; drilling of the fragmented deposit to allow for flooding, wherein one or more wells are drilled to provide access to the deposit and retrieval of extracted bitumen, to form a drilled fragmented deposit; flooding the drilled fragmented deposit with a first flood volume of fluid to permit the first flood volume of fluid to admix with the fragmented first portion, to re lease heavy oil from any inert material so that the heavy oil floats within the first flood volume of fluid in the drilled fragmented deposit to form a flooded first portion; recovering the heavy oil; and repeating the above for each additional portions. | 07-24-2014 |
| 20140209304 | MOBILITY CONTROL POLYMERS FOR ENHANCED OIL RECOVERY - Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers. | 07-31-2014 |
| 20140238672 | Systems And Methods For Multi-Fluid Geothermal Energy Systems - A method is disclosed for extracting geothermal energy from a geothermal reservoir formation. The method may involve using a production well to extract brine from the reservoir formation. At least one of nitrogen (N | 08-28-2014 |
| 20140251606 | Method For Increasing Hydrocarbon Extraction And For Ensuring The Continuous Operation Of Wells - A method for increasing extraction of oil, gas and gas condensates from deposits is provided, including the steps of pumping a working fluid into a well, wherein the working fluid is an organic solvent comprising at least one aromatic hydrocarbon, at least one carboxylic acid and at least one organic acid, adjusting a density of the working fluid based at least in part on a density of formation fluid, and adjusting a viscosity of the working fluid based at least in part on desired degree of penetration of the working fluid into surrounding formation layers. | 09-11-2014 |
| 20140338901 | Enhanced Coal-Bed Methane Production - Methods and systems for enhanced recovery of coal bed methane are described. A method includes generating a diluent gas mixture comprising N | 11-20-2014 |
| 20140345861 | FISHBONE SAGD - The present disclosure relates to a particularly effective well configuration that can be used for SAGD and other steam based oil recovery methods. Fishbone multilateral wells are combined with SAGD, effectively expanding steam coverage. Preferably, an array of overlapping fishbone wells cover the pay, reducing water use and allowing more complete production of the pay. | 11-27-2014 |
| 20150013978 | INFLOW CONTROL VALVE FOR CONTROLLING THE FLOW OF FLUIDS INTO A GENERALLY HORIZONTAL PRODUCTION WELL AND METHOD OF USING THE SAME - An inflow control valve for controlling the flow of fluids into a generally horizontal production well located in an underground reservoir, where the production well has a well casing, a production tubing located within the casing and an annulus between the production tubing and the casing. The inflow control valve has a valve body having a threaded portion for connecting the valve body to the production tubing, a through bore for connecting the valve body to an inside bore of said production tubing and an outside surface. The valve also has at least one inlet passageway extending through the valve body between the outside surface and said through bore and an inlet opening on said at least one inlet passageway formed on the outside surface of the valve body. The valve has a closure member for opening and closing said inlet opening, the closure member being located between the inlet opening and the annulus and a means to bias the closure member to an open position when the inlet opening is submerged in a liquid to be recovered from the reservoir and to bias the closure member to a closed position in the absence of the liquid at the inlet opening. A method of using such a device in a an extraction process to recover underground hydrocarbons is also disclosed. | 01-15-2015 |
| 20150292303 | PROCESS FOR SEQUESTRATION OF FLUIDS IN GEOLOGICAL FORMATIONS - A process for geo-sequestration of a water-soluble fluid includes selecting a target water-laden geological formation bounded by an upper formation of low permeability, providing an injection well into the formation and injecting the fluid into the injection well under conditions of temperature, pressure and density contrast selected to cause the fluid to enter the formation and rise within the formation. This generates a dynamic density-driven convection current of formation water which promotes enhanced mixing of the water-soluble fluid with formation water. | 10-15-2015 |
| 20150369521 | Multi-Fluid Renewable Geo-Energy Systems And Methods - A geo-energy production system and method is disclosed for extracting thermal energy from a reservoir formation. In one implementation the method may involve using a production well to extract brine from the reservoir formation. A plurality of working fluid injection (“WFI”) wells may be arranged in a vicinity of the production well to at least partially circumscribe the production well. A plurality of brine production (“BP”) wells may be arranged in a vicinity of the WFI wells to at least partially circumscribe the WFI wells. A working fluid may be injected into the WFI wells to augment a pressure in the reservoir formation, to thus drive a flow of the brine up through the production well and up through the BP wells, together with at least a portion of the injected working fluid. Methods are disclosed involving the use of parasitic-load time-shifting to (1) soak up excess power from an electricity grid, with the excess power being stored as pressure (bulk energy), and to (2) store excess solar thermal energy, allowing renewable energy sources to be available to dispatch power whenever demanded by the grid. | 12-24-2015 |
| 20160177171 | MULTIFUNCTIONAL FOAMING COMPOSITION WITH WETTABILITY MODIFYING, CORROSION INHIBITORY AND MINERAL SCALE INHIBITORY/DISPERSANTS PROPERTIES FOR HIGH TEMPERATURE AND ULTRA HIGH SALINITY | 06-23-2016 |
