发明名称 |
Improved polymeric gel system and methods for making and using same in hydrocarbon recovery |
摘要 |
<p>Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol and an effective amount of a phosphorus-containing compound sufficient to increase the viscosity of coacervate gels up to 3 times as compared to the gels in the absence of the phosphorus-containing compound. The Zeta Potential of the gel is maintained at an absolute value of at least 20. Optional gel promoting additives include betaines and amine oxides. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. The gels are particularly useful in well drilling fluids and well fracturing fluids.</p> |
申请公布号 |
GB2450601(B) |
申请公布日期 |
2012.10.31 |
申请号 |
GB20080010370 |
申请日期 |
2008.06.06 |
申请人 |
CLEARWATER INTERNATIONAL, LLC |
发明人 |
KEVIN SCHWARTZ |
分类号 |
C08L101/14;C08F226/04;C09K8/12;C09K8/24;C09K8/62;C09K8/68;E21B43/26;E21B43/267;E21B43/38;F16L55/11 |
主分类号 |
C08L101/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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