Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10253241 | Water based completion and displacement fluid and method of use | Raymond D. Ravitz, Mark Luyster | 2019-04-09 |
| 10012057 | Methods of using oleaginous fluids for completion operations | Balakrishnan Panamarathupalayam, Hui Zhang, Balkrishna Gadiyar, William E. Foxenberg, Alhad Phatak | 2018-07-03 |
| 9353306 | Viscoelastic surfactant based wellbore fluids and methods of use | LaTosha Moore, Frank E. Evans | 2016-05-31 |
| 9085725 | Invert emulsion based completion and displacement fluid and method of use | Raymond D. Ravitz, Mark Luyster | 2015-07-21 |
| 9045675 | Non-aqueous, acid soluble, high-density completion fluids and process | Stephen D. Mason | 2015-06-02 |
| 8937034 | Viscoelastic surfactant based wellbore fluids and methods of use | LaTosha Moore, Frank E. Evans | 2015-01-20 |
| 8871097 | Reclamation of formate brines | Hui Zhang, Robert L. Horton, Frank E. Evans | 2014-10-28 |
| 8598090 | Invert emulsion based completion and displacement fluid and method of use | Raymond D. Ravitz, Mark Luyster | 2013-12-03 |
| 8592354 | Water based completion and displacement fluid and method of use | Raymond D. Ravitz, Mark Luyster | 2013-11-26 |
| 8236736 | Oil-based insulating packer fluid | Larry H. Leggett, Morris Arvie, Jr., Robert L. Horton, Joyce H. Zhang | 2012-08-07 |
| 8188014 | In-situ solidification of invert emulsion fluids to form gas tight annular barrier | — | 2012-05-29 |
| 8105989 | Water based completion and displacement fluid and method of use | Raymond D. Ravitz, Mark Luyster | 2012-01-31 |
| 7972997 | Process for coating gravel pack sand with polymeric breaker | Hugh Caffery, Li-Jein Lee | 2011-07-05 |
| 7863223 | Oil-based insulating packer fluid | Larry H. Leggett, Morris Arvie, Jr., Robert L. Horton, Joyce H. Zhang | 2011-01-04 |
| 7334639 | In-situ solidification of invert emulsion fluids to form gas tight annular barrier | — | 2008-02-26 |
| 7334755 | Tandem rotor wing and tandem fixed wing aircraft | — | 2008-02-26 |