Issued Patents All Time
Showing 51–75 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8397812 | Nano-sized particle-coated proppants for formation fines fixation in proppant packs | James B. Crews, John R. Willingham, James R. Pace, Christopher K. Belcher | 2013-03-19 |
| 8383557 | Dual-functional breaker for hybrid fluids of viscoelastic surfactant and polymer | James B. Crews | 2013-02-26 |
| 8278252 | Nano-sized particles for stabilizing viscoelastic surfactant fluids | James B. Crews, James H. Treadway, John R. Willingham | 2012-10-02 |
| 8278251 | Fines migration control at their sources in water reservoirs | — | 2012-10-02 |
| 8230923 | Controlling coal fines in coal bed operations | James B. Crews, Allen D. Gabrysch, Rick M. Jeffrey | 2012-07-31 |
| 8226830 | Wastewater purification with nanoparticle-treated bed | James B. Crews | 2012-07-24 |
| 8196659 | Multifunctional particles for downhole formation treatments | James B. Crews, John R. Willingham | 2012-06-12 |
| 8188015 | Methods and compositions for fracturing subterranean formations | James B. Crews, Allen D. Gabrysch, James H. Treadway, John R. Willingham, Patrick A. Kelly +1 more | 2012-05-29 |
| 8186433 | Methods of gravel packing long interval wells | James B. Crews, Allen D. Gabrysch, Brian Alan Evans | 2012-05-29 |
| 8173581 | Mutual solvent-soluble and/or alcohol blends-soluble particles for viscoelastic surfactant fluids | — | 2012-05-08 |
| 8114820 | Compositions and methods for controlling fluid loss | James B. Crews | 2012-02-14 |
| 8105492 | Methods for recharging nanoparticle-treated beds | James B. Crews, John R. Willingham | 2012-01-31 |
| 8101557 | Unsaturated fatty acids and mineral oils as internal breakers for VES-gelled fluids | James B. Crews | 2012-01-24 |
| 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 |
| 7942206 | In-flow control device utilizing a water sensitive media | James B. Crews, Aaron C. Hammer, Martin P. Coronado | 2011-05-17 |
| 7942215 | Drilling fluids for oil and gas reservoirs with high carbonate contents | James B. Crews, John R. Willingham | 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 |
| 7825075 | Viscosity enhancers for viscoelastic surfactant stimulation fluids | — | 2010-11-02 |
| 7721803 | Nano-sized particle-coated proppants for formation fines fixation in proppant packs | James B. Crews, John R. Willingham, James R. Pace, Christopher K. Belcher | 2010-05-25 |
| 7723272 | Methods and compositions for fracturing subterranean formations | James B. Crews, Allen D. Gabrysch, James H. Treadway, John R. Willingham, Patrick A. Kelly +1 more | 2010-05-25 |
| 7703522 | Methods of underground formation consolidation | — | 2010-04-27 |