发明名称 |
METHOD AND MEANS TO SEAL THE CASING-BY-CASING ANNULUS AT THE SURFACE FOR REVERSE CIRCULATION CEMENT JOBS |
摘要 |
A method for sealing an annulus defined between an outer casing and an inner casing, the method having steps as follows: fastening a lock ring to an anchor base, wherein the lock ring comprises a threaded fastener of the lock ring to the head; positioning the lock ring and anchor base about the outer casing; fastening a limit clamp to an exterior surface of the outer casing; repositioning the lock ring and anchor base so that the anchor base is in contact with the limit clamp; fastening a head to the lock ring; providing an opening for fluid communication with the annulus through the head; positioning a plug about the inner casing and in contact with the inner casing and the head; positioning a seal fitting clamp about the inner casing and in contact with the plug; positioning a bull cap about the inner casing and in contact with the seal fitting clamp; and fastening the bull cap to the head.
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申请公布号 |
CA2634373(C) |
申请公布日期 |
2011.02.22 |
申请号 |
CA20062634373 |
申请日期 |
2006.11.28 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
GRIFFITH, JAMES E.;CARROLL, CALEB |
分类号 |
E21B33/14;E21B33/04;E21B33/05 |
主分类号 |
E21B33/14 |
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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