Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5957202 | Combination production of shallow heavy crude | — | 1999-09-28 |
| 5320170 | Oil recovery process employing horizontal and vertical wells in a modified inverted 5-spot pattern | Jack Hsu, Ben WANG | 1994-06-14 |
| 5065821 | Gas flooding with horizontal and vertical wells | Jack Hsu | 1991-11-19 |
| 5046561 | Application of multiphase generation process in a CO.sub.2 flood for high temperature reservoirs | Jack Hsu | 1991-09-10 |
| 4850429 | Recovering hydrocarbons with a triangular horizontal well pattern | Donald S. Mims, Stewart Haynes, Jr. | 1989-07-25 |
| 4702314 | Patterns of horizontal and vertical wells for improving oil recovery efficiency | Margaret A. Hight | 1987-10-27 |
| 4700779 | Parallel horizontal wells | Margaret A. Hight | 1987-10-20 |
| 4685515 | Modified 7 spot patterns of horizontal and vertical wells for improving oil recovery efficiency | Margaret A. Hight | 1987-08-11 |
| 4682652 | Producing hydrocarbons through successively perforated intervals of a horizontal well between two vertical wells | Margaret A. Hight | 1987-07-28 |
| 4662441 | Horizontal wells at corners of vertical well patterns for improving oil recovery efficiency | Margaret A. Hight | 1987-05-05 |
| 4653583 | Optimum production rate for horizontal wells | Alfred Brown, Donald L. Hoyt | 1987-03-31 |
| 4646824 | Patterns of horizontal and vertical wells for improving oil recovery efficiency | Margaret A. Hight | 1987-03-03 |
| 4645003 | Patterns of horizontal and vertical wells for improving oil recovery efficiency | Margaret A. Hight | 1987-02-24 |
| 4577691 | Method and apparatus for producing viscous hydrocarbons from a subterranean formation | Sze-Foo Chien | 1986-03-25 |
| 4576036 | Method and apparatus for determining quality and mass flow rate of flowing steam | Donald S. Mims, Richard S. Allen | 1986-03-18 |
| 4558742 | Method and apparatus for gravel packing horizontal wells | Alfred Brown | 1985-12-17 |
| 4553595 | Method for forming a gravel packed horizontal well | Alfred Brown | 1985-11-19 |
| 4540050 | Method of improving conformance in steam floods with steam foaming agents | Zean Z. Gassmann, Jeffrey T. Hawkins, Vernon H. Schievelbein, Wilbur L. Hall | 1985-09-10 |
| 4535845 | Method for producing viscous hydrocarbons from discrete segments of a subterranean layer | Alfred Brown, Yick-Mow Shum | 1985-08-20 |
| 4515215 | Steam injection method with constant rate of heat | Chester E. Hermes | 1985-05-07 |
| 4495994 | Thermal injection and in situ combustion process for heavy oils | Alfred Brown, Yick-Mow Shum | 1985-01-29 |
| 4298455 | Viscosity reduction process | — | 1981-11-03 |
| 4260018 | Method for steam injection in steeply dipping formations | Yick-Mow Shum | 1981-04-07 |