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| Number | Title | Issue Date |
| 8167040 | In situ combustion in gas over bitumen formations The invention provides methods for natural gas and oil recovery, which include the use of air injection and in situ combustion in natural gas reservoirs to facilitate production of natural gas and heavy oil in gas over bitumen formations. ... | 05/01/2012 |
| 8056624 | 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 co... | 11/15/2011 |
| 7900701 | In situ combustion in gas over bitumen formations The invention provides methods for natural gas and oil recovery, which include the use of air injection and in situ combustion in natural gas reservoirs to facilitate production of natural gas and heavy oil in gas over bitumen formations. ... | 03/08/2011 |
| 7328743 | Toe-to-heel waterflooding with progressive blockage of the toe region A modified toe-to-heel waterflooding (TTHW) process is provided for recovering oil from a reservoir in an underground formation. After establishing the conventional TTHW waterflood, the process includes placing a chemical blocking agent at the watered out producing ... | 02/12/2008 |
| 7279017 | Method for converting heavy oil residuum to a useful fuel A method for enabling the use of heavy oil residuum by conversion to a useful product. The method, in one embodiment, involves the use of a heavy oil residuum which is substantially non flowable. The viscosity of the residuum is reduced by heat or a combination of h... | 10/09/2007 |
| 7096941 | In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer A coal containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the f... | 08/29/2006 |
| 7066254 | In situ thermal processing of a tar sands formation An in situ process for treating a tar sands formation is provided. The process may include providing heat from one or more heaters to at least a portion of the formation. The heat may be allowed to transfer from the one or more heaters to a part of the formation suc... | 06/27/2006 |
| 7055600 | In situ thermal recovery from a relatively permeable formation with controlled production rate A method for treating a relatively permeable formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a portion of the formation. The heat may be allowed to transfer from the heat sources to a selected section of th... | 06/06/2006 |
| 7051808 | Seismic monitoring of in situ conversion in a hydrocarbon containing formation In an embodiment, a system may be used to heat a hydrocarbon containing formation. The system may include a conduit placed within an opening in the formation. A conductor may be placed within the conduit. The conductor may provide heat to a portion of the formation.... | 05/30/2006 |
| 7051809 | Burn assisted fracturing of underground coal bed A method for fracturing subterranean coal formations by injecting air into the formation, igniting the coal, driving the fire away from the wellbore by injecting a cooling media into the burning formation adjacent the wellbore, and subsequently extinguishing the fir... | 05/30/2006 |
| 7036583 | In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 05/02/2006 |
| 7017661 | Production of synthesis gas from a coal formation A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 03/28/2006 |
| 6994160 | In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 02/07/2006 |
| 6991031 | In situ thermal processing of a coal formation to convert a selected total organic carbon content into hydrocarbon products A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 01/31/2006 |
| 6973967 | Situ thermal processing of a coal formation using pressure and/or temperature control A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 12/13/2005 |
| 6966372 | In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 11/22/2005 |
| 6951247 | In situ thermal processing of an oil shale formation using horizontal heat sources An oil shale formation may be treated using an in situ thermal process. Heat may be provided to a portion of the formation from one or more heat sources having a horizontal orientation in the formation. Heat may be allowed to transfer from the heat sources to a sect... | 10/04/2005 |
| 6877554 | In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 04/12/2005 |
| 6866097 | In situ thermal processing of a coal formation to increase a permeability/porosity of the formation A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 03/15/2005 |
| 6805195 | In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 10/19/2004 |
| 6761216 | In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gas A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 07/13/2004 |
| 6745832 | Situ thermal processing of a hydrocarbon containing formation to control product composition A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 06/08/2004 |
| 6739394 | Production of synthesis gas from a hydrocarbon containing formation A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 05/25/2004 |
| 6732794 | In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 05/11/2004 |
| 6732795 | In situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon material A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 05/11/2004 |
| 6729396 | In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 05/04/2004 |
| 6725920 | In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon products A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 04/27/2004 |
| 6722429 | In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 04/20/2004 |
| 6722431 | In situ thermal processing of hydrocarbons within a relatively permeable formation A hydrocarbon containing formation may be treated using an in situ thermal process. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to a first portion of the formation to mobilize hydrocarbons within... | 04/20/2004 |
| 6715548 | In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 04/06/2004 |
| 6712137 | In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon material A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 03/30/2004 |
| 6708758 | In situ thermal processing of a coal formation leaving one or more selected unprocessed areas A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 03/23/2004 |
| 6702016 | In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of ... | 03/09/2004 |
| 6688387 | In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensate A hydrocarbon containing formation may be treated using an in situ thermal process. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of ... | 02/10/2004 |
| 6607033 | In Situ thermal processing of a coal formation to produce a condensate A coal formation may be treated using an in situ thermal process. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a... | 08/19/2003 |
| 6588504 | In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the f... | 07/08/2003 |
| 6588503 | In Situ thermal processing of a coal formation to control product composition A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the f... | 07/08/2003 |
| 6581684 | In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of ... | 06/24/2003 |
| 5443118 | Oxidant enhanced water injection into a subterranean formation to augment hydrocarbon recovery A method is disclosed for recovering crude oil from a subterranean formation. The invention utilizes the introduction of water containing a salt, which is capable of decomposing to generate an oxidant, into the formation. Decomposition conditions and igni... | 08/22/1995 |
| 5211230 | Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion A horizontal production well is located in the lower portion of a heavy viscous oil-bearing reservoir. A vertical injection well is located in the upper portion of the reservoir. Oxygen-enriched gas is injected down the injector well and ignited in the up... | 05/18/1993 |
