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 th e gels in the absence of the phosphorus-containing compound The Zeta Potential of the gel is maintain ed 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 |
CA2634446(A1) |
申请公布日期 |
2008.12.08 |
申请号 |
CA20082634446 |
申请日期 |
2008.06.06 |
申请人 |
CLEARWATER INTERNATIONAL, L.L.C. |
发明人 |
SCHWARTZ, KEVIN |
分类号 |
C08J3/075;C08K5/521;C08L33/26;C08L39/00;C09K8/68;C09K8/70;E21B43/267;F17D3/08 |
主分类号 |
C08J3/075 |
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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