|
| US3978920 | 24 Oct 1975 | 7 Sep 1976 | Cities Service Company | In situ combustion process for multi-stratum reservoirs |
| US3997004 | 8 Oct 1975 | 14 Dec 1976 | Texaco Inc. | Method for recovering viscous petroleum |
| US4397352 | 4 May 1981 | 9 Aug 1983 | Mobil Oil Corporation | In situ combustion of tar sands with injection of gases |
| US4649997 | 24 Dec 1984 | 17 Mar 1987 | Texaco Inc. | Carbon dioxide injection with in situ combustion process for heavy oils |
| US4961467 | 16 Nov 1989 | 9 Oct 1990 | Mobil Oil Corporation | Enhanced oil recovery for oil reservoir underlain by water |
| US5503226 | 6 Jul 1995 | 2 Apr 1996 | | Process for recovering hydrocarbons by thermally assisted gravity segregation |
| US7640987 | 17 Aug 2005 | 5 Jan 2010 | Halliburton Energy Services, Inc. | Communicating fluids with a heated-fluid generation system |
| US7770643 | 10 Oct 2006 | 10 Aug 2010 | Halliburton Energy Services, Inc. | Hydrocarbon recovery using fluids |
| US7809538 | 13 Jan 2006 | 5 Oct 2010 | Halliburton Energy Services, Inc. | Real time monitoring and control of thermal recovery operations for heavy oil reservoirs |
| US7832482 | 10 Oct 2006 | 16 Nov 2010 | Halliburton Energy Services, Inc. | Producing resources using steam injection |
| US7900701 | 13 Jan 2006 | 8 Mar 2011 | Encana Corporation | In situ combustion in gas over bitumen formations |
| US8028438 | 30 Jun 2005 | 4 Oct 2011 | Aqualizer, LLC | Moisture condensation control system |
| US8091625 | 21 Feb 2006 | 10 Jan 2012 | World Energy Systems Incorporated | Method for producing viscous hydrocarbon using steam and carbon dioxide |
| US8167040 | 7 Mar 2011 | 1 May 2012 | Encana Corporation | In situ combustion in gas over bitumen formations |
| US8176980 | 5 Feb 2010 | 15 May 2012 | FCCL Partnership | Method of gas-cap air injection for thermal oil recovery |