Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9951262 | Well servicing fluid | D.V. Satyanarayana Gupta, Rupa Venugopal, Tanhee Galindo | 2018-04-24 |
| 9518213 | Nano-dispersion well servicing fluid containing a pH adjuster | D. V. Satyanarayana Gupta | 2016-12-13 |
| 9217103 | Well servicing fluid | D. V. Satyanarayana Gupta, Rupa Venugopal, Tanhee Galindo | 2015-12-22 |
| 9206679 | Method of servicing a wellbore with an aqueous gel containing a friction reducer | D. V. Satyanarayana Gupta, Justyna Ferraro | 2015-12-08 |
| 9102860 | Method of inhibiting or controlling release of well treatment agent | D. V. Satyanarayana Gupta | 2015-08-11 |
| 9080097 | Well servicing fluid | D. V. Satyanarayana Gupta | 2015-07-14 |
| 9018146 | Method of treating a well with viscoelastic surfactant and viscosification activator | Richard S. Wheeler | 2015-04-28 |
| 8978762 | Well servicing fluid and method of servicing a well with the fluid | Sandra L. Berry, Joel L. Boles, Kern L. Smith | 2015-03-17 |
| 8669213 | Method of servicing a wellbore with an aqueous gel containing a friction reducer | D. V. Satyanarayana Gupta, Justyna Ferraro | 2014-03-11 |
| 8003578 | Method of treating a well and a subterranean formation with alkali nitrate brine | Terry D. Monroe, Daniel P. Vollmer, Bruce A. Comeaux | 2011-08-23 |
| 7510009 | Method of acidizing a subterranean formation with diverting foam or fluid | Jeffrey C. Dawson | 2009-03-31 |
| 7392844 | Method of treating an oil or gas well with biodegradable low toxicity fluid system | Sandra L. Berry | 2008-07-01 |
| 7303018 | Method of acidizing a subterranean formation with diverting foam or fluid | Jeffrey C. Dawson | 2007-12-04 |
| 7231976 | Method of treating an oil or gas well with biodegradable low toxicity fluid system | Sandra L. Berry | 2007-06-19 |
| 5948733 | Fluid loss control | Reinaldo C. Navarrete, Vernon G. Constien | 1999-09-07 |
| 5658861 | Delayed borate crosslinked fracturing fluid having increased temperature range | Erik Nelson, Vernon G. Constien | 1997-08-19 |
| 5633220 | High internal phase ratio water-in-oil emulsion fracturing fluid | Richard M. Hodge | 1997-05-27 |
| 5445223 | Delayed borate crosslinked fracturing fluid having increased temperature range | Erik Nelson, Vernon G. Constien | 1995-08-29 |
| 4969526 | Non-interfering breaker system for delayed crosslinked fracturing fluids at low temperature | — | 1990-11-13 |
| 4816166 | Flocculation of coal particles and coal slimes | — | 1989-03-28 |