Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450260 | Sand consolidation with flexible gel system | Simon James, Frédéric J. Guinot | 2002-09-17 |
| 6435277 | Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations | Qi Qu, Dean M. Willberg, Mathew M. Samuel, Jesse Lee, Frank F. Chang +4 more | 2002-08-20 |
| 6412561 | Methods of fracturing subterranean formations | J. Ernest Brown, Roger J. Card | 2002-07-02 |
| RE36466 | Sand control without requiring a gravel pack screen | J. Ernest Brown, Roger J. Card | 1999-12-28 |
| 5981446 | Apparatus, compositions, and methods of employing particulates as fracturing fluid compositions in subterranean formations | Xiaoping Qiu, Philip F. Sullivan, Vernon G. Constien | 1999-11-09 |
| 5964295 | Methods and compositions for testing subterranean formations | J. Ernest Brown, Roger J. Card | 1999-10-12 |
| 5877127 | On-the-fly control of delayed borate-crosslinking of fracturing fluids | Roger J. Card, Kenneth H. Nimerick, L. Jack Maberry, S. Bruce McConnell | 1999-03-02 |
| 5658861 | Delayed borate crosslinked fracturing fluid having increased temperature range | Vernon G. Constien, Kay E. Cawiezel | 1997-08-19 |
| 5551514 | Sand control without requiring a gravel pack screen | J. Ernest Brown, Roger J. Card | 1996-09-03 |
| 5551516 | Hydraulic fracturing process and compositions | William David Norman, Raymond J. Jasinski | 1996-09-03 |
| 5503671 | High temperature retarders for oil field cements, cement slurries and corresponding cementing processes | Jean-Michel Casabonne, Marc Jouve | 1996-04-02 |
| 5445223 | Delayed borate crosslinked fracturing fluid having increased temperature range | Kay E. Cawiezel, Vernon G. Constien | 1995-08-29 |
| 5421418 | Apparatus and method for mixing polyacrylamide with brine in an annulus of a wellbore to prevent a cement-like mixture from fouling wellbore tools | Clifford L. Aseltine, James E. Brooks | 1995-06-06 |
| 4802534 | Method and device for manipulating ferrofluids for use in cementing wells | David B. Larson | 1989-02-07 |
| 4691774 | Novel ferrofluids for use in cementing wells | — | 1987-09-08 |
| 4601758 | Sulfonated poly (vinyl aromatics) as fluid loss additives for salt cement slurries | — | 1986-07-22 |
| 4415367 | Pumpable thixotropic cement slurries for use in cementing pipes in a well | — | 1983-11-15 |
| 4328036 | High temperature expanding cement composition and use | Louis H. Eilers | 1982-05-04 |