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| Number | Title | Issue Date |
| 8439112 | Method and system for surface filtering of solids from return fluids in well operations A system and method for separating solids from return fluids in well drill-out, flow back, well-test, and other production operations. Solids are collected in a filter comprising a perforate inner tube inside a solid outer tube with an annulus therebetween. The flui... | 05/14/2013 |
| 8430164 | Production of steam and its application to enhanced oil recovery The invention relates to a method for producing steam comprising the successive steps of: providing feedwater containing carbonate and/or sulfate ions; adding a crystallizing reagent able to react with carbonate an... | 04/30/2013 |
| 8403043 | Microwave-promoted desulfurization of crude oil Heavy crude oils having high sulfur content and viscosities are upgraded by a hydrodesulfurization (HDS) process that includes microwave irradiation of a mixture of the sour heavy crude oil with at least one catalyst and optionally, one or more sensitizers, and irra... | 03/26/2013 |
| 8347960 | Method for using electrocoagulation in hydraulic fracturing A method of improving natural gas release from a well via an enhanced hydraulic fracturing operation. The method includes capturing or retrieving the flow back from the well following the fracturing operation. The flow back or other source water is introduced to an ... | 01/08/2013 |
| 8297355 | Using heat from produced fluids of oil and gas operations to produce energy The invention pertains to new processes and apparatuses which can effectively and efficiently convert heat contained in wellhead fluids comprising hydrocarbons to a useful energy source like electricity. The process generally comprises first producing a heat contain... | 10/30/2012 |
| 8240379 | 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 she... | 08/14/2012 |
| 8235112 | Gas flow system A gas flow system for removing a liquid from a well bore and allowing for gas production is provided. The gas flow system comprises a casing in the well bore for allowing flow of the liquid and gas; a tubing string in the casing for allowing flow of the liquid and g... | 08/07/2012 |
| 8167041 | Apparatus and method for energy-efficient and environmentally-friendly recovery of bitumen A system and method for energy-efficient and environmentally-friendly recovery of bitumen aims at recovering unconventional oil in an environmentally friendly and sustainable way that has the potential of eliminating the need of natural gas currently employed for st... | 05/01/2012 |
| 8151880 | Methods of making transportation fuel A method for producing alkylated hydrocarbons is disclosed. Formation fluid is produced from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a first gas stream. The first gas stream includes olefins. The l... | 04/10/2012 |
| 8127843 | Solidification of residuals from water treatment systems in heavy oil recovery operations Solidification of water treatment wastewater brines from oil production operations. Concentrated wastewater brines from water treatment systems in heavy oil recovery operations are converted to solids suitable for landfill using Portland cement. The solidification p... | 03/06/2012 |
| 8066067 | Apparatus and method for recovering fluids from a well and/or injecting fluids into a well Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing bran... | 11/29/2011 |
| RE42772 | Large particulate removal system A choke for removing large diameter particulate matter from an oil or natural gas well includes a housing having a chamber with an integral solids receptacle. The chamber is in communication with a flow stream outlet and a flow stream inlet. The flow stream inlet is... | 10/04/2011 |
| 7934551 | Methods to properly use saline water for oil reservoirs injection operations This invention presents innovative and off the beaten path methods to mainly produce suitable saline streams for oil-fields water injection operations. The production of such suitable saline streams can: (1) be achieved economically; and (2) meet the actual stringen... | 05/03/2011 |
| 7926564 | Portable well treating fluid mixing system and method A portable well treating fluid mixing system includes: a supply tank having an inlet receiving pneumatically conveyed dry treating material; a cyclone separator having an inlet coupled to the supply tank and receiving dust laden air from the supply tank, and having ... | 04/19/2011 |
| 7866388 | High temperature methods for forming oxidizer fuel A method of treating a formation fluid includes providing formation fluid from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a first gas stream. The first gas stream includes carbon dioxide, hydrogen sul... | 01/11/2011 |
| 7849921 | Water treatment method for heavy oil production A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Pretreated produced water is then fed to an evaporator. Up to 95% or more of the pretreated produced... | 12/14/2010 |
| 7841407 | Method for treating a hydrocarbon containing formation Methods of generating subsurface heat for treating a hydrocarbon containing formation are described herein. The methods include providing a stream that includes water to a plurality of wellbores. Fuel and oxidant is provided to one or more flameless distributed comb... | 11/30/2010 |
| 7798218 | Apparatus and a method of fragmenting hard particles A method of treating particulate hard materials driven to the surface of a well in a returning well flow in connection with a producing well or well stimulation operations in the petroleum production industry, the method including fragmentation of the hard particles... | 09/21/2010 |
| 7770640 | Carbon dioxide enriched flue gas injection for hydrocarbon recovery A process for enhanced oil and gas recovery. An enriched flue gas is synthesized from utility plant flue gas. The enriched flue gas is customizable for specific requirements; however, the gas is formed to have a high concentration of carbon dioxide. This is used as ... | 08/10/2010 |
| 7740065 | Process to upgrade whole crude oil by hot pressurized water and recovery fluid A process for upgrading whole crude oil utilizing a recovery fluid, depressurizing an extracted whole crude oil/recovery fluid mixture in a step-wise fashion, and subsequently contacting at least a portion of the whole crude oil with supercritical water fluid to pro... | 06/22/2010 |
| 7717173 | Methods of improving oil or gas production with recycled, increased sodium water A method of improving oil or gas well production has the steps of (a) collecting contaminated water having 0.15% or more by weight of the salts of Na, Ca, Mg, K, Cl, SO4 or CO3 or combinations thereof (b) separation processing the contaminated ... | 05/18/2010 |
| 7717174 | Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Feedwater is then acidified and steam stripped to remove alkalinity and dissolved non-condensable ga... | 05/18/2010 |
| 7703518 | Dust control system for transferring dry material used in subterranean wells A portable well treating fluid mixing system includes: a supply tank having an inlet receiving pneumatically conveyed dry treating material; a cyclone separator having an inlet coupled to the supply tank and receiving dust laden air from the supply tank, and having ... | 04/27/2010 |
| 7686079 | Method for removing silica from evaporator concentrate A method for removing silica from evaporator concentrate to facilitate disposal of the concentrate. An alkaline earth compound is mixed with the concentrate in a crystallizer. Silica in the concentrate reacts with the alkaline earth compound and precipitates from th... | 03/30/2010 |
| 7610962 | Sour gas injection for use with in situ heat treatment Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for providing acidic gas to a subsurface formation is described herein. The method may include providing heat from one or more heaters to a portion of a subsu... | 11/03/2009 |
| 7604052 | Compositions produced using an in situ heat treatment process Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for producing hydrocarbons from a subsurface formation includes providing heat to the subsurface formation using an in situ heat treatment process. One or mor... | 10/20/2009 |
| 7597145 | Fluid-flow system, device and method Methods, devices, and systems are disclosed for combining fluids of different pressures and flow rates in, for example, gas gathering systems, gas wells, and other areas in which independently powered compressors or pumps are not desired. ... | 10/06/2009 |
| 7591310 | Methods of hydrotreating a liquid stream to remove clogging compounds A method includes producing formation fluid from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a gas stream. At least a portion of the liquid stream is provided to a hydrotreating unit. At least a portio... | 09/22/2009 |
| 7584789 | Methods of cracking a crude product to produce additional crude products A method for producing a crude product is disclosed. Formation fluid is produced from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a first gas stream. The first gas stream includes olefins. The liquid s... | 09/08/2009 |
| 7581589 | Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid A method for producing alkylated hydrocarbons is disclosed. Formation fluid is produced from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a first gas stream. The first gas stream includes olefins. The l... | 09/01/2009 |
| 7568523 | Treatment of cesium-containing fluids Cesium solutions are treated in a cavitation device to increase their temperature and facilitate the removal of water from them. The context is normally an oil well fluid or a mining solution. The concentrated solutions can be reused, in the case of oil well fluids,... | 08/04/2009 |
| 7546874 | Conserving components of fluids A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device can be powered by a... | 06/16/2009 |
| 7467660 | Pumped carbon mining methane production process The invention is a continuous process for producing methane from an underground coal bed or an above ground carbon-containing resource using hydrogen as a recycling working fluid. For an underground coal seam, the process includes injecting (220) hydrogen int... | 12/23/2008 |
| 7451813 | System and method for bleeding off pressure following servicing a well A technique facilitates release of pressure from a well, and/or surface treating lines, via a bleed-off mechanism. The bleed-off mechanism is in fluid communication with a flow path extending from a wellhead valve or wellbore and designed for connection with a vacuu... | 11/18/2008 |
| 7441603 | Hydrocarbon recovery from impermeable oil shales An economic method for in situ maturing and production of oil shale or other deep-lying, impermeable resources containing immobile hydrocarbons. Vertical fractures are created using horizontal or vertical wells. The same or other wells are used to inject pressurized... | 10/28/2008 |
| 7438129 | Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Feedwater is then acidified and steam stripped to remove alkalinity and dissolved non-condensable ga... | 10/21/2008 |
| 7434621 | System and a method for prediction and treatment of slugs being formed in a flow line or wellbore tubing A system and a method for prediction and treatment of all kinds of slugs being formed in a flow line system or wellbore tubing transporting a multiphase fluid towards a downstream process including a separator or a slug catcher at the process inlet. The system inclu... | 10/14/2008 |
| 7428926 | Water treatment method for heavy oil production A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Pretreated produced water is then fed to an evaporator. Up to 95% or more of the pretreated produced... | 09/30/2008 |
| 7426959 | Systems and methods for producing oil and/or gas A system including a mechanism for recovering oil and/or gas from an underground formation, the oil and/or gas comprising one or more sulfur compounds; a mechanism for converting at least a portion of the sulfur compounds from the recovered oil and/or gas into a car... | 09/23/2008 |
| 7370701 | Wellbore completion design to naturally separate water and solids from oil and gas A wellbore completion design is provided, which creates a convective flow action that separates water and sand from hydrocarbons during production of the hydrocarbons from a subterranean formation. A deviated section of the wellbore creates the desired effect. The w... | 05/13/2008 |
