发明名称 |
METHODS OF CONSOLIDATING FORMATIONS OR FORMING CHEMICAL CASING OR BOTH WHILE DRILLING |
摘要 |
Methods of consolidating formations or forming chemical casing or both while drilling are provided. One method of the invention comprises drilling a well bore with a drilling fluid comprised of water, a polymeric cationic catalyst which is adsorbed on weak zones or formations formed of unconsolidated clays , shale, sand stone and the like, a water soluble or dispersible polymer which is cross-linked by a thermoset resin and causes the resin to be hard and tou gh when cured, a particulate curable solid thermoset resin, a water soluble thermoset resin, and a delayed dispersible acid catalyst for curing the soli d and water soluble resins. The drilling fluid forms a filter cake on the wall s of the well bore that cures and consolidates the unconsolidated weak zones a nd formations penetrated by the well bore so that sloughing is prevented and forms a hard and tough cross-linked chemical casing on the walls of the well bore.
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申请公布号 |
CA2487953(A1) |
申请公布日期 |
2003.12.24 |
申请号 |
CA20032487953 |
申请日期 |
2003.05.27 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
FITZGERALD, RUSSELL M.;BERRYHILL, DENISE;BECKER, THOMAS E.;WILSON, J., MICHAEL;REDDY, B., RAGHAVA;WEAVER, JIMMIE D.;EOFF, LARRY S.;WHITFILL, DONALD L. |
分类号 |
C09K8/12;C09K8/24;C09K8/508;C09K8/512;C09K8/575;(IPC1-7):C09K7/02;E21B43/02;E21B33/138 |
主分类号 |
C09K8/12 |
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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