发明名称 |
FRICTION REDUCING COMPOSITION AND METHOD |
摘要 |
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. 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. |
申请公布号 |
EP1454035(A2) |
申请公布日期 |
2004.09.08 |
申请号 |
EP20020788095 |
申请日期 |
2002.12.12 |
申请人 |
CLEARWATER INTERNATIONAL, L.L.C |
发明人 |
SCHWARTZ, KEVIN M.;SMITH, KEVIN, W.;CHEN, SHIH-RUEY, T. |
分类号 |
C09K8/62;B08B9/04;C09K8/04;C09K8/12;C09K8/24;C09K8/40;C09K8/68;E21B17/10;F17D3/08 |
主分类号 |
C09K8/62 |
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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