Issued Patents All Time
Showing 51–75 of 148 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9175206 | Gellable treatment fluids having adjustable gel times and methods associated therewith | B. Raghava Reddy, Freddy Crespo | 2015-11-03 |
| 9150781 | Gellable treatment fluids comprising quaternary ammonium salt gel-time modifiers and methods for use thereof | B. Raghava Reddy | 2015-10-06 |
| 9127193 | Lewis acid as gelation retarder for crosslinkable polymer compositions | B. Raghava Reddy, Julio Vasquez, Eldon D. Dalrymple | 2015-09-08 |
| 9090811 | Gellable treatment fluids comprising amino group gel-time modifiers and methods for use thereof | B. Raghava Reddy | 2015-07-28 |
| 9051506 | Hydration acceleration surfactants in conjunction with high molecular weight polymers, and methods and compositions relating thereto | B. Raghava Reddy, Freddy Crespo, Christopher A. Lewis | 2015-06-09 |
| 8962535 | Methods of diverting chelating agents in subterranean treatments | Thomas D. Welton, Bradley L. Todd | 2015-02-24 |
| 8950488 | Polymerizing and anchoring a water-soluble polymer to an in-place mineral surface of a well | Jimmie D. Weaver | 2015-02-10 |
| 8883695 | Particulate materials coated with a relative permeability modifier and methods for treating subterranean formations using treatment fluids containing the same | Bradley L. Todd, David B. Allison | 2014-11-11 |
| 8703659 | Sealant composition comprising a gel system and a reduced amount of cement for a permeable zone downhole | Eldon D. Dalrymple, Diederik van Batenburg, Jip van Eijden | 2014-04-22 |
| 8636069 | Wellbore servicing fluid compositions and use thereof | B. Raghava Reddy, Ron Crook | 2014-01-28 |
| 8631869 | Methods useful for controlling fluid loss in subterranean treatments | Leopoldo Sierra, Eldon D. Dalrymple, Barireddy R. Reddy, Matthew E. Blauch, Mark Parker | 2014-01-21 |
| 8623793 | Hydrophobically and cationically modified relative permeability modifiers and associated methods | B. Raghava Reddy, Eldon D. Dalrymple | 2014-01-07 |
| 8592353 | Methods useful for diverting aqueous fluids in subterranean operations | Eldon D. Dalrymple, B. Raghava Reddy | 2013-11-26 |
| 8522874 | Weak organic acid as gelation retarder for crosslinkable polymer compositions | B. Raghava Reddy, Julio Vasquez, Eldon D. Dalrymple | 2013-09-03 |
| 8470746 | Methods relating to the stabilization of hydrophobically modified hydrophilic polymer treatment fluids under alkaline conditions | — | 2013-06-25 |
| 8459352 | Selective placement of conformance treatments in multi-zone well completions | Mark D. Kalman, Eldon D. Dalrymple | 2013-06-11 |
| 8418764 | Methods useful for controlling fluid loss in subterranean formations | Ronald Glen Dusterhoft, Bradley L. Todd, David W. Ritter | 2013-04-16 |
| 8420576 | Hydrophobically and cationically modified relative permeability modifiers and associated methods | B. Raghava Reddy, Eldon D. Dalrymple | 2013-04-16 |
| 8387694 | Methods for placement of sealant in subterranean intervals | Eldon D. Dalrymple, Julio Vasquez | 2013-03-05 |
| 8360145 | Selective placement of conformance treatments in multi-zone well completions | Mark D. Kalman, Eldon D. Dalrymple | 2013-01-29 |
| 8343896 | Sealant compositions comprising diutan and associated methods | Richard W. Pauls | 2013-01-01 |
| 8322421 | Lewis acid as gelation retarder for crosslinkable polymer compositions | B. Raghava Reddy, Julio Vasquez, Eldon D. Dalrymple | 2012-12-04 |
| 8302691 | Methods for increasing gas production from a subterranean formation | B. Raghava Reddy, Danhua Zhang, Eldon D. Dalrymple, Paul Brown | 2012-11-06 |
| 8278250 | Methods useful for diverting aqueous fluids in subterranean operations | Eldon D. Dalrymple, B. Raghava Reddy | 2012-10-02 |
| 8273692 | Permeability-modifying drilling fluids and methods of use | Eldon D. Dalrymple, B. Raghava Reddy | 2012-09-25 |