|
| US4026359 | 6 Feb 1976 | 31 May 1977 | Shell Oil Company | Producing shale oil by flowing hot aqueous fluid along vertically varied paths within leached oil shale |
| US4366863 | 29 Sep 1980 | 4 Ene 1983 | Texaco Inc. | Enhanced oil recovery operations |
| US4495994 | 2 Feb 1983 | 29 Ene 1985 | Texaco Inc. | Thermal injection and in situ combustion process for heavy oils |
| US4649997 | 24 Dic 1984 | 17 Mar 1987 | Texaco Inc. | Carbon dioxide injection with in situ combustion process for heavy oils |
| US4688637 | 27 Feb 1987 | 25 Ago 1987 | | Method for induced flow recovery of shallow crude oil deposits |
| US4691771 | 15 Sep 1986 | 8 Sep 1987 | WorldEnergy Systems, Inc. | Recovery of oil by in-situ combustion followed by in-situ hydrogenation |
| US4702314 | 3 Mar 1986 | 27 Oct 1987 | Texaco Inc. | Patterns of horizontal and vertical wells for improving oil recovery efficiency |
| US5211230 | 21 Feb 1992 | 18 May 1993 | Mobil Oil Corporation | Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion |
| US5456315 | 1 Feb 1994 | 10 Oct 1995 | Alberta Oil Sands Technology and Research | Horizontal well gravity drainage combustion process for oil recovery |
| US7493952 | 27 Feb 2006 | 24 Feb 2009 | Archon Technologies Ltd. | Oilfield enhanced in situ combustion process |
| US7540324 | 19 Oct 2007 | 2 Jun 2009 | Shell Oil Company | Heating hydrocarbon containing formations in a checkerboard pattern staged process |
| US7546873 | 21 Abr 2006 | 16 Jun 2009 | Shell Oil Company | Low temperature barriers for use with in situ processes |
| US7549470 | 20 Oct 2006 | 23 Jun 2009 | Shell Oil Company | Solution mining and heating by oxidation for treating hydrocarbon containing formations |
| US7556095 | 20 Oct 2006 | 7 Jul 2009 | Shell Oil Company | Solution mining dawsonite from hydrocarbon containing formations with a chelating agent |
| US7556096 | 20 Oct 2006 | 7 Jul 2009 | Shell Oil Company | Varying heating in dawsonite zones in hydrocarbon containing formations |
| US7559367 | 20 Oct 2006 | 14 Jul 2009 | Shell Oil Company | Temperature limited heater with a conduit substantially electrically isolated from the formation |
| US7562706 | 20 Oct 2006 | 21 Jul 2009 | Shell Oil Company | Systems and methods for producing hydrocarbons from tar sands formations |
| US7562707 | 19 Oct 2007 | 21 Jul 2009 | Shell Oil Company | Heating hydrocarbon containing formations in a line drive staged process |
| US7581589 | 20 Oct 2006 | 1 Sep 2009 | Shell Oil Company | Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid |
| US7584789 | 20 Oct 2006 | 8 Sep 2009 | Shell Oil Company | Methods of cracking a crude product to produce additional crude products |
| US7591310 | 20 Oct 2006 | 22 Sep 2009 | Shell Oil Company | Methods of hydrotreating a liquid stream to remove clogging compounds |
| US7604052 | 20 Abr 2007 | 20 Oct 2009 | Shell Oil Company | Compositions produced using an in situ heat treatment process |
| US7610962 | 20 Abr 2007 | 3 Nov 2009 | Shell Oil Company | Sour gas injection for use with in situ heat treatment |
| US7631690 | 19 Oct 2007 | 15 Dic 2009 | Shell Oil Company | Heating hydrocarbon containing formations in a spiral startup staged sequence |
| US7635024 | 19 Oct 2007 | 22 Dic 2009 | Shell Oil Company | Heating tar sands formations to visbreaking temperatures |
| US7635025 | 20 Oct 2006 | 22 Dic 2009 | Shell Oil Company | Cogeneration systems and processes for treating hydrocarbon containing formations |
| US7640980 | 7 Abr 2008 | 5 Ene 2010 | Shell Oil Company | Thermal processes for subsurface formations |
| US7644765 | 19 Oct 2007 | 12 Ene 2010 | Shell Oil Company | Heating tar sands formations while controlling pressure |
| US7673681 | 19 Oct 2007 | 9 Mar 2010 | Shell Oil Company | Treating tar sands formations with karsted zones |
| US7677310 | 19 Oct 2007 | 16 Mar 2010 | Shell Oil Company | Creating and maintaining a gas cap in tar sands formations |
| US7677314 | 19 Oct 2007 | 16 Mar 2010 | Shell Oil Company | Method of condensing vaporized water in situ to treat tar sands formations |
| US7681647 | 19 Oct 2007 | 23 Mar 2010 | Shell Oil Company | Method of producing drive fluid in situ in tar sands formations |
| US7703513 | 19 Oct 2007 | 27 Abr 2010 | Shell Oil Company | Wax barrier for use with in situ processes for treating formations |
| US7717171 | 19 Oct 2007 | 18 May 2010 | Shell Oil Company | Moving hydrocarbons through portions of tar sands formations with a fluid |
| US7730945 | 19 Oct 2007 | 8 Jun 2010 | Shell Oil Company | Using geothermal energy to heat a portion of a formation for an in situ heat treatment process |
| US7730946 | 19 Oct 2007 | 8 Jun 2010 | Shell Oil Company | Treating tar sands formations with dolomite |
| US7730947 | 19 Oct 2007 | 8 Jun 2010 | Shell Oil Company | Creating fluid injectivity in tar sands formations |
| US7735935 | 1 Jun 2007 | 15 Jun 2010 | Shell Oil Company | In situ thermal processing of an oil shale formation containing carbonate minerals |
| US7740062 | 30 Ene 2008 | 22 Jun 2010 | Alberta Research Council Inc. | System and method for the recovery of hydrocarbons by in-situ combustion |
| US7798220 | 18 Abr 2008 | 21 Sep 2010 | Shell Oil Company | In situ heat treatment of a tar sands formation after drive process treatment |
| US7798221 | 31 May 2007 | 21 Sep 2010 | Shell Oil Company | In situ recovery from a hydrocarbon containing formation |
| US7831133 | 21 Abr 2006 | 9 Nov 2010 | Shell Oil Company | Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration |
| US7831134 | 21 Abr 2006 | 9 Nov 2010 | Shell Oil Company | Grouped exposed metal heaters |
| US7832484 | 18 Abr 2008 | 16 Nov 2010 | Shell Oil Company | Molten salt as a heat transfer fluid for heating a subsurface formation |
| US7841401 | 19 Oct 2007 | 30 Nov 2010 | Shell Oil Company | Gas injection to inhibit migration during an in situ heat treatment process |
| US7841408 | 18 Abr 2008 | 30 Nov 2010 | Shell Oil Company | In situ heat treatment from multiple layers of a tar sands formation |
| US7845411 | 19 Oct 2007 | 7 Dic 2010 | Shell Oil Company | In situ heat treatment process utilizing a closed loop heating system |
| US7849922 | 18 Abr 2008 | 14 Dic 2010 | Shell Oil Company | In situ recovery from residually heated sections in a hydrocarbon containing formation |
| US7860377 | 21 Abr 2006 | 28 Dic 2010 | Shell Oil Company | Subsurface connection methods for subsurface heaters |
| US7866385 | 20 Abr 2007 | 11 Ene 2011 | Shell Oil Company | Power systems utilizing the heat of produced formation fluid |
| US7866386 | 13 Oct 2008 | 11 Ene 2011 | Shell Oil Company | In situ oxidation of subsurface formations |
| US7866388 | 13 Oct 2008 | 11 Ene 2011 | Shell Oil Company | High temperature methods for forming oxidizer fuel |
| US7912358 | 20 Abr 2007 | 22 Mar 2011 | Shell Oil Company | Alternate energy source usage for in situ heat treatment processes |
| US7931086 | 18 Abr 2008 | 26 Abr 2011 | Shell Oil Company | Heating systems for heating subsurface formations |
| US7942197 | 21 Abr 2006 | 17 May 2011 | Shell Oil Company | Methods and systems for producing fluid from an in situ conversion process |
| US7950453 | 18 Abr 2008 | 31 May 2011 | Shell Oil Company | Downhole burner systems and methods for heating subsurface formations |
| US7986869 | 21 Abr 2006 | 26 Jul 2011 | Shell Oil Company | Varying properties along lengths of temperature limited heaters |
| US8011451 | 13 Oct 2008 | 6 Sep 2011 | Shell Oil Company | Ranging methods for developing wellbores in subsurface formations |
| US8027571 | 21 Abr 2006 | 27 Sep 2011 | Shell Oil Company | In situ conversion process systems utilizing wellbores in at least two regions of a formation |
| US8042610 | 18 Abr 2008 | 25 Oct 2011 | Shell Oil Company | Parallel heater system for subsurface formations |
| US8070840 | 21 Abr 2006 | 6 Dic 2011 | Shell Oil Company | Treatment of gas from an in situ conversion process |
| US8091636 | 30 Abr 2008 | 10 Ene 2012 | World Energy Systems Incorporated | Method for increasing the recovery of hydrocarbons |
| US8113272 | 13 Oct 2008 | 14 Feb 2012 | Shell Oil Company | Three-phase heaters with common overburden sections for heating subsurface formations |
| US8146661 | 13 Oct 2008 | 3 Abr 2012 | Shell Oil Company | Cryogenic treatment of gas |
| US8146669 | 13 Oct 2008 | 3 Abr 2012 | Shell Oil Company | Multi-step heater deployment in a subsurface formation |
| US8151880 | 9 Dic 2010 | 10 Abr 2012 | Shell Oil Company | Methods of making transportation fuel |
| US8151907 | 10 Abr 2009 | 10 Abr 2012 | Shell Oil Company | Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations |
| US8162059 | 13 Oct 2008 | 24 Abr 2012 | Shell Oil Company | Induction heaters used to heat subsurface formations |
| US8162405 | 10 Abr 2009 | 24 Abr 2012 | Shell Oil Company | Using tunnels for treating subsurface hydrocarbon containing formations |
| US8172335 | 10 Abr 2009 | 8 May 2012 | Shell Oil Company | Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations |
| US8176980 | 5 Feb 2010 | 15 May 2012 | FCCL Partnership | Method of gas-cap air injection for thermal oil recovery |
| US8177305 | 10 Abr 2009 | 15 May 2012 | Shell Oil Company | Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations |
| US8191630 | 28 Abr 2010 | 5 Jun 2012 | Shell Oil Company | Creating fluid injectivity in tar sands formations |
| US8196658 | 13 Oct 2008 | 12 Jun 2012 | Shell Oil Company | Irregular spacing of heat sources for treating hydrocarbon containing formations |
| US8220539 | 9 Oct 2009 | 17 Jul 2012 | Shell Oil Company | Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation |
| US8224165 | 21 Abr 2006 | 17 Jul 2012 | Shell Oil Company | Temperature limited heater utilizing non-ferromagnetic conductor |
| US8225866 | 21 Jul 2010 | 24 Jul 2012 | Shell Oil Company | In situ recovery from a hydrocarbon containing formation |
| US8230927 | 16 May 2011 | 31 Jul 2012 | Shell Oil Company | Methods and systems for producing fluid from an in situ conversion process |
| US8233782 | 29 Sep 2010 | 31 Jul 2012 | Shell Oil Company | Grouped exposed metal heaters |
| US8240774 | 13 Oct 2008 | 14 Ago 2012 | Shell Oil Company | Solution mining and in situ treatment of nahcolite beds |
