Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9464222 | Well fluid and method of servicing a well | Jinguo Zhang, Jacob Gibson | 2016-10-11 |
| 8932998 | Methods for crosslinking water soluble polymers for use in well applications | Jinguo Zhang, Keith W. Sharp | 2015-01-13 |
| 8136596 | Methods of using water-superabsorbent polymers to reduce heat transfer | Cristian A. Lopez, Xiaolan Wang, Qi Qu | 2012-03-20 |
| 7762332 | Method of using water-superabsorbent polymer in production tubing and pipes | Cristian A. Lopez, Xiaolan Wang, Qi Qu | 2010-07-27 |
| 7678281 | Method of reclaiming brine solutions using an organic chelant | Qi Qu | 2010-03-16 |
| 7674384 | Method of reclaiming brine solutions using an organic chelant | Qi Qu | 2010-03-09 |
| 7481273 | Method of using water-in-oil emulsion to remove oil base or synthetic oil base filter cake | Brian B. Beall, Mark A. Vorderburggen, Qi Qu, Sandra L. Berry | 2009-01-27 |
| 7306039 | Methods of using crosslinkable compositions | Xiaolan Wang | 2007-12-11 |
| 7172703 | Method of reclaiming a well completion brine solutions using an organic chelant | Qi Qu | 2007-02-06 |
| 7144512 | Method of reclaiming brine solutions using an organic chelant | Qi Qu, Joel L. Boles, Sandra L. Berry | 2006-12-05 |
| 6100222 | High density, viscosified, aqueous compositions having superior stability under stress conditions | Daniel P. Vollmer, Robert L. Horton | 2000-08-08 |
| 5785747 | Viscosification of high density brines | Daniel P. Vollmer, Robert L. Horton | 1998-07-28 |
| 4615841 | Process for making alkaline-earth metal salts of alkaryl sulfonic acids | Emanuel Stamatakis, Thomas E. Sample, Jr. | 1986-10-07 |
| 4220585 | Drilling fluid additives | Bethel Q. Green | 1980-09-02 |