发明名称 |
WELLHEAD AND CONTROL STACK PRESSURE TEST PLUG TOOL |
摘要 |
A test plug tool for use in testing a pressure integrity of a pressure control stack mounted to a wellhead, including a joint between a casing and a casing support in the wellhead. The test plug tool includes a test plug of an appropriate diameter used to pressure test the pressure control stack as well as a joint between any one of a surface casing and the wellhead, an intermediate casing and an intermediate casing mandrel, and a production casing and a production casing mandrel. The pressure integrity of the wellhead is ensured at each stage of well drilling and well completion, and safety is improved. Optionally, a backpressure valve permits pressurized fluid that leaks below the test plug tool to flow upwardly through a central bore in a landing tool that is secured to the test plug tool to permit detection of the leak.
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申请公布号 |
CA2461402(A1) |
申请公布日期 |
2005.09.12 |
申请号 |
CA20042461402 |
申请日期 |
2004.03.12 |
申请人 |
MCGUIRE, BOB;DALLAS, MURRAY L. |
发明人 |
MCGUIRE, BOB;DALLAS, L. MURRAY |
分类号 |
E21B33/03;E21B47/10;(IPC1-7):E21B33/03 |
主分类号 |
E21B33/03 |
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