|
| US3931856 | 23. Dez. 1974 | 13. Jan. 1976 | Atlantic Richfield Company | Method of heating a subterranean formation |
| US3946809 | 19. Dez. 1974 | 30. März 1976 | Exxon Production Research Company | Oil recovery by combination steam stimulation and electrical heating |
| US3958636 | 23. Jan. 1975 | 25. Mai 1976 | Atlantic Richfield Company | Production of bitumen from a tar sand formation |
| US3973627 | 12. Nov. 1973 | 10. Aug. 1976 | Sun Oil Company (Delaware) | Wellbore gravel pack method |
| US4030549 | 26. Jan. 1976 | 21. Juni 1977 | Cities Service Company | Recovery of geothermal energy |
| US4401162 | 13. Okt. 1981 | 30. Aug. 1983 | Synfuel (an Indiana limited partnership) | In situ oil shale process |
| US4415034 | 3. Mai 1982 | 15. Nov. 1983 | Cities Service Company | Electrode well completion |
| US4466484 | 28. Mai 1982 | 21. Aug. 1984 | Syminex (Societe Anonyme) | Electrical device for promoting oil recovery |
| US4572582 | 13. Apr. 1984 | 25. Febr. 1986 | | Method of mining metals located in the earth |
| US4884634 | 8. Juli 1987 | 5. Dez. 1989 | Industrikontakt Ing. O. Ellingsen & Co. | Process for increasing the degree of oil extraction |
| US4886118 | 17. Febr. 1988 | 12. Dez. 1989 | Shell Oil Company | Conductively heating a subterranean oil shale to create permeability and subsequently produce oil |
| US5255742 | 12. Juni 1992 | 26. Okt. 1993 | Shell Oil Company | Heat injection process |
| US5297626 | 12. Juni 1992 | 29. März 1994 | Shell Oil Company | Oil recovery process |
| US6199634 | 27. Aug. 1998 | 13. März 2001 | | Method and apparatus for controlling the permeability of mineral bearing earth formations |
| US6499536 | 13. Juni 2000 | 31. Dez. 2002 | Eureka Oil ASA | Method to increase the oil production from an oil reservoir |
| US7320364 | 22. Apr. 2005 | 22. Jan. 2008 | Shell Oil Company | Inhibiting reflux in a heated well of an in situ conversion system |
| US7357180 | 22. Apr. 2005 | 15. Apr. 2008 | Shell Oil Company | Inhibiting effects of sloughing in wellbores |
| US7435037 | 21. Apr. 2006 | 14. Okt. 2008 | Shell Oil Company | Low temperature barriers with heat interceptor wells for in situ processes |
| US7461691 | 23. Jan. 2007 | 9. Dez. 2008 | Shell Oil Company | In situ recovery from a hydrocarbon containing formation |
| US7500528 | 21. Apr. 2006 | 10. März 2009 | Shell Oil Company | Low temperature barrier wellbores formed using water flushing |
| US7510000 | 22. Apr. 2005 | 31. März 2009 | Shell Oil Company | Reducing viscosity of oil for production from a hydrocarbon containing formation |
| US7527094 | 21. Apr. 2006 | 5. Mai 2009 | Shell Oil Company | Double barrier system for an in situ conversion process |
| US7533719 | 20. Apr. 2007 | 19. Mai 2009 | Shell Oil Company | Wellhead with non-ferromagnetic materials |
| US7540324 | 19. Okt. 2007 | 2. Juni 2009 | Shell Oil Company | Heating hydrocarbon containing formations in a checkerboard pattern staged process |
| US7546873 | 21. Apr. 2006 | 16. Juni 2009 | Shell Oil Company | Low temperature barriers for use with in situ processes |
| US7549470 | 20. Okt. 2006 | 23. Juni 2009 | Shell Oil Company | Solution mining and heating by oxidation for treating hydrocarbon containing formations |
| US7556095 | 20. Okt. 2006 | 7. Juli 2009 | Shell Oil Company | Solution mining dawsonite from hydrocarbon containing formations with a chelating agent |
| US7556096 | 20. Okt. 2006 | 7. Juli 2009 | Shell Oil Company | Varying heating in dawsonite zones in hydrocarbon containing formations |
| US7559367 | 20. Okt. 2006 | 14. Juli 2009 | Shell Oil Company | Temperature limited heater with a conduit substantially electrically isolated from the formation |
| US7559368 | 20. Okt. 2006 | 14. Juli 2009 | Shell Oil Company | Solution mining systems and methods for treating hydrocarbon containing formations |
| US7562706 | 20. Okt. 2006 | 21. Juli 2009 | Shell Oil Company | Systems and methods for producing hydrocarbons from tar sands formations |
| US7562707 | 19. Okt. 2007 | 21. Juli 2009 | Shell Oil Company | Heating hydrocarbon containing formations in a line drive staged process |
| US7575052 | 21. Apr. 2006 | 18. Aug. 2009 | Shell Oil Company | In situ conversion process utilizing a closed loop heating system |
| US7575053 | 21. Apr. 2006 | 18. Aug. 2009 | Shell Oil Company | Low temperature monitoring system for subsurface barriers |
| US7581589 | 20. Okt. 2006 | 1. Sept. 2009 | Shell Oil Company | Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid |
| US7584789 | 20. Okt. 2006 | 8. Sept. 2009 | Shell Oil Company | Methods of cracking a crude product to produce additional crude products |
| US7591310 | 20. Okt. 2006 | 22. Sept. 2009 | Shell Oil Company | Methods of hydrotreating a liquid stream to remove clogging compounds |
| US7597147 | 20. Apr. 2007 | 6. Okt. 2009 | Shell Oil Company | Temperature limited heaters using phase transformation of ferromagnetic material |
| US7604052 | 20. Apr. 2007 | 20. Okt. 2009 | Shell Oil Company | Compositions produced using an in situ heat treatment process |
| US7610962 | 20. Apr. 2007 | 3. Nov. 2009 | Shell Oil Company | Sour gas injection for use with in situ heat treatment |
| US7631689 | 20. Apr. 2007 | 15. Dez. 2009 | Shell Oil Company | Sulfur barrier for use with in situ processes for treating formations |
| US7631690 | 19. Okt. 2007 | 15. Dez. 2009 | Shell Oil Company | Heating hydrocarbon containing formations in a spiral startup staged sequence |
| US7635023 | 20. Apr. 2007 | 22. Dez. 2009 | Shell Oil Company | Time sequenced heating of multiple layers in a hydrocarbon containing formation |
| US7635024 | 19. Okt. 2007 | 22. Dez. 2009 | Shell Oil Company | Heating tar sands formations to visbreaking temperatures |
| US7635025 | 20. Okt. 2006 | 22. Dez. 2009 | Shell Oil Company | Cogeneration systems and processes for treating hydrocarbon containing formations |
| US7640980 | 7. Apr. 2008 | 5. Jan. 2010 | Shell Oil Company | Thermal processes for subsurface formations |
| US7640987 | 17. Aug. 2005 | 5. Jan. 2010 | Halliburton Energy Services, Inc. | Communicating fluids with a heated-fluid generation system |
| US7644765 | 19. Okt. 2007 | 12. Jan. 2010 | Shell Oil Company | Heating tar sands formations while controlling pressure |
| US7673681 | 19. Okt. 2007 | 9. März 2010 | Shell Oil Company | Treating tar sands formations with karsted zones |
| US7673786 | 20. Apr. 2007 | 9. März 2010 | Shell Oil Company | Welding shield for coupling heaters |
| US7677310 | 19. Okt. 2007 | 16. März 2010 | Shell Oil Company | Creating and maintaining a gas cap in tar sands formations |
| US7677314 | 19. Okt. 2007 | 16. März 2010 | Shell Oil Company | Method of condensing vaporized water in situ to treat tar sands formations |
| US7681647 | 19. Okt. 2007 | 23. März 2010 | Shell Oil Company | Method of producing drive fluid in situ in tar sands formations |
| US7683296 | 20. Apr. 2007 | 23. März 2010 | Shell Oil Company | Adjusting alloy compositions for selected properties in temperature limited heaters |
| US7703513 | 19. Okt. 2007 | 27. Apr. 2010 | Shell Oil Company | Wax barrier for use with in situ processes for treating formations |
| US7717171 | 19. Okt. 2007 | 18. Mai 2010 | Shell Oil Company | Moving hydrocarbons through portions of tar sands formations with a fluid |
| US7730945 | 19. Okt. 2007 | 8. Juni 2010 | Shell Oil Company | Using geothermal energy to heat a portion of a formation for an in situ heat treatment process |
| US7730946 | 19. Okt. 2007 | 8. Juni 2010 | Shell Oil Company | Treating tar sands formations with dolomite |
| US7730947 | 19. Okt. 2007 | 8. Juni 2010 | Shell Oil Company | Creating fluid injectivity in tar sands formations |
| US7770643 | 10. Okt. 2006 | 10. Aug. 2010 | Halliburton Energy Services, Inc. | Hydrocarbon recovery using fluids |
| US7785427 | 20. Apr. 2007 | 31. Aug. 2010 | Shell Oil Company | High strength alloys |
| US7793722 | 20. Apr. 2007 | 14. Sept. 2010 | Shell Oil Company | Non-ferromagnetic overburden casing |
| US7798220 | 18. Apr. 2008 | 21. Sept. 2010 | Shell Oil Company | In situ heat treatment of a tar sands formation after drive process treatment |
| US7798221 | 31. Mai 2007 | 21. Sept. 2010 | Shell Oil Company | In situ recovery from a hydrocarbon containing formation |
| US7809538 | 13. Jan. 2006 | 5. Okt. 2010 | Halliburton Energy Services, Inc. | Real time monitoring and control of thermal recovery operations for heavy oil reservoirs |
| US7831133 | 21. Apr. 2006 | 9. Nov. 2010 | Shell Oil Company | Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration |
| US7831134 | 21. Apr. 2006 | 9. Nov. 2010 | Shell Oil Company | Grouped exposed metal heaters |
| US7832482 | 10. Okt. 2006 | 16. Nov. 2010 | Halliburton Energy Services, Inc. | Producing resources using steam injection |
| US7832484 | 18. Apr. 2008 | 16. Nov. 2010 | Shell Oil Company | Molten salt as a heat transfer fluid for heating a subsurface formation |
| US7841401 | 19. Okt. 2007 | 30. Nov. 2010 | Shell Oil Company | Gas injection to inhibit migration during an in situ heat treatment process |
| US7841408 | 18. Apr. 2008 | 30. Nov. 2010 | Shell Oil Company | In situ heat treatment from multiple layers of a tar sands formation |
| US7841425 | 18. Apr. 2008 | 30. Nov. 2010 | Shell Oil Company | Drilling subsurface wellbores with cutting structures |
| US7845411 | 19. Okt. 2007 | 7. Dez. 2010 | Shell Oil Company | In situ heat treatment process utilizing a closed loop heating system |
| US7849922 | 18. Apr. 2008 | 14. Dez. 2010 | Shell Oil Company | In situ recovery from residually heated sections in a hydrocarbon containing formation |
| US7860377 | 21. Apr. 2006 | 28. Dez. 2010 | Shell Oil Company | Subsurface connection methods for subsurface heaters |
| US7866385 | 20. Apr. 2007 | 11. Jan. 2011 | Shell Oil Company | Power systems utilizing the heat of produced formation fluid |
| US7866386 | 13. Okt. 2008 | 11. Jan. 2011 | Shell Oil Company | In situ oxidation of subsurface formations |
| US7866388 | 13. Okt. 2008 | 11. Jan. 2011 | Shell Oil Company | High temperature methods for forming oxidizer fuel |
| US7912358 | 20. Apr. 2007 | 22. März 2011 | Shell Oil Company | Alternate energy source usage for in situ heat treatment processes |
| US7931086 | 18. Apr. 2008 | 26. Apr. 2011 | Shell Oil Company | Heating systems for heating subsurface formations |
| US7942197 | 21. Apr. 2006 | 17. Mai 2011 | Shell Oil Company | Methods and systems for producing fluid from an in situ conversion process |
| US7942203 | 4. Jan. 2010 | 17. Mai 2011 | Shell Oil Company | Thermal processes for subsurface formations |
| US7950453 | 18. Apr. 2008 | 31. Mai 2011 | Shell Oil Company | Downhole burner systems and methods for heating subsurface formations |
| US7986869 | 21. Apr. 2006 | 26. Juli 2011 | Shell Oil Company | Varying properties along lengths of temperature limited heaters |
| US8011451 | 13. Okt. 2008 | 6. Sept. 2011 | Shell Oil Company | Ranging methods for developing wellbores in subsurface formations |
| US8027571 | 21. Apr. 2006 | 27. Sept. 2011 | Shell Oil Company | In situ conversion process systems utilizing wellbores in at least two regions of a formation |
| US8042610 | 18. Apr. 2008 | 25. Okt. 2011 | Shell Oil Company | Parallel heater system for subsurface formations |
| US8070840 | 21. Apr. 2006 | 6. Dez. 2011 | Shell Oil Company | Treatment of gas from an in situ conversion process |
| US8083813 | 20. Apr. 2007 | 27. Dez. 2011 | Shell Oil Company | Methods of producing transportation fuel |
| US8113272 | 13. Okt. 2008 | 14. Febr. 2012 | Shell Oil Company | Three-phase heaters with common overburden sections for heating subsurface formations |
| US8146661 | 13. Okt. 2008 | 3. Apr. 2012 | Shell Oil Company | Cryogenic treatment of gas |
| US8146669 | 13. Okt. 2008 | 3. Apr. 2012 | Shell Oil Company | Multi-step heater deployment in a subsurface formation |
| US8151880 | 9. Dez. 2010 | 10. Apr. 2012 | Shell Oil Company | Methods of making transportation fuel |
| US8151907 | 10. Apr. 2009 | 10. Apr. 2012 | Shell Oil Company | Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations |
| US8162059 | 13. Okt. 2008 | 24. Apr. 2012 | Shell Oil Company | Induction heaters used to heat subsurface formations |
| US8162405 | 10. Apr. 2009 | 24. Apr. 2012 | Shell Oil Company | Using tunnels for treating subsurface hydrocarbon containing formations |
| US8172335 | 10. Apr. 2009 | 8. Mai 2012 | Shell Oil Company | Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations |
| US8177305 | 10. Apr. 2009 | 15. Mai 2012 | Shell Oil Company | Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations |
| US8191630 | 28. Apr. 2010 | 5. Juni 2012 | Shell Oil Company | Creating fluid injectivity in tar sands formations |
| US8192682 | 26. Apr. 2010 | 5. Juni 2012 | Shell Oil Company | High strength alloys |
| US8196658 | 13. Okt. 2008 | 12. Juni 2012 | Shell Oil Company | Irregular spacing of heat sources for treating hydrocarbon containing formations |
| US8220539 | 9. Okt. 2009 | 17. Juli 2012 | Shell Oil Company | Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation |
| US8224165 | 21. Apr. 2006 | 17. Juli 2012 | Shell Oil Company | Temperature limited heater utilizing non-ferromagnetic conductor |
| US8225866 | 21. Juli 2010 | 24. Juli 2012 | Shell Oil Company | In situ recovery from a hydrocarbon containing formation |
| US8230927 | 16. Mai 2011 | 31. Juli 2012 | Shell Oil Company | Methods and systems for producing fluid from an in situ conversion process |
| US8233782 | 29. Sept. 2010 | 31. Juli 2012 | Shell Oil Company | Grouped exposed metal heaters |
| US8240774 | 13. Okt. 2008 | 14. Aug. 2012 | Shell Oil Company | Solution mining and in situ treatment of nahcolite beds |
| USRE35696 | 28. Sept. 1995 | 23. Dez. 1997 | Shell Oil Company | Heat injection process |
