Issued Patents 2011
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8056630 | Methods of using viscoelastic surfactant gelled fluids to pre-saturate underground formations | James B. Crews, John R. Willingham | 2011-11-15 |
| 8051913 | Downhole gap sealing element and method | Richard YingQing Xu | 2011-11-08 |
| 8053397 | Using nanoparticles for water flow control in subterranean formations | James B. Crews, Michael H. Johnson | 2011-11-08 |
| 7992640 | Organic acid treating fluids with viscoelastic surfactants and internal breakers | James B. Crews | 2011-08-09 |
| 7967068 | Particles in oil for viscoelastic surfactant gelled fluids | James B. Crews | 2011-06-28 |
| 7942215 | Drilling fluids for oil and gas reservoirs with high carbonate contents | James B. Crews, John R. Willingham | 2011-05-17 |
| 7942206 | In-flow control device utilizing a water sensitive media | James B. Crews, Aaron C. Hammer, Martin P. Coronado | 2011-05-17 |
| 7875575 | Compositions and methods for water and gas shut-off in subterranean wells with VES fluids | James B. Crews, John R. Willingham | 2011-01-25 |