Patent | Date |
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Use of breaker chemicals in gelled hydrocarbons Grant 5,948,735 - Newlove , et al. September 7, 1 | 1999-09-07 |
Composition comprising polymer encapsulant for sealing layer encapsulated substrate Grant 5,204,183 - McDougall , et al. * April 20, 1 | 1993-04-20 |
Composition comprising encapsulated substrate and thermoplastic polymer overcoating Grant 5,192,615 - McDougall , et al. * March 9, 1 | 1993-03-09 |
Composition comprising encapsulated substrate with thermoplastic polymer overcoating Grant 5,187,011 - Manalastas , et al. February 16, 1 | 1993-02-16 |
Breaker chemical encapsulated with a crosslinked elastomer coating Grant 5,110,486 - Manalastas , et al. * May 5, 1 | 1992-05-05 |
Encapsulated breaker chemical with a multi-coat layer urea Grant 5,102,559 - McDougall , et al. * April 7, 1 | 1992-04-07 |
Encapsulated breaker chemical Grant 5,102,558 - McDougall , et al. April 7, 1 | 1992-04-07 |
Polymer article of manufacture Grant 5,073,276 - Newlove , et al. * December 17, 1 | 1991-12-17 |
Method of treating subterranean formations using a non-damaging fracturing fluid Grant 5,007,481 - Williams , et al. April 16, 1 | 1991-04-16 |
Hydraulic fracturing with chlorine dioxide cleanup Grant 4,964,466 - Williams , et al. October 23, 1 | 1990-10-23 |
Controlled hydraulic fracturing via nonaqueous solutions containing low charge density polyampholytes Grant 4,739,834 - Peiffer , et al. April 26, 1 | 1988-04-26 |
Polymer article and its use for controlled introduction of reagent into a fluid Grant 4,738,897 - McDougall , et al. April 19, 1 | 1988-04-19 |
Polymer article and its use for controlled introduction of reagent into a fluid Grant 4,670,166 - McDougall , et al. June 2, 1 | 1987-06-02 |
Method for controlled introduction of reagent into a liquid Grant 4,660,645 - Newlove , et al. April 28, 1 | 1987-04-28 |
Fluid loss control in oil field cements Grant 4,659,750 - Sedillo , et al. April 21, 1 | 1987-04-21 |
Fluid loss control in oil field cements Grant 4,626,285 - Peiffer , et al. December 2, 1 | 1986-12-02 |
Hydrocarbon soluble polymer complexes useful as viscosifiers in fracturing operations Grant 4,615,393 - Sedillo , et al. October 7, 1 | 1986-10-07 |
Use of mono and polyalkylene glycol ethers as agents for the release of differentially stuck drill pipe Grant 4,614,235 - Keener , et al. September 30, 1 | 1986-09-30 |
Hydrocarbon soluble polymer complexes useful as viscosifiers in fracturing operations Grant 4,579,671 - Lundberg , et al. April 1, 1 | 1986-04-01 |