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ASSEMBLY OF A WORK TOWER, A DRILLWELL AND A PRODUCTION TEST COLUMN, AND A PRODUCTION TEST COLUMN.
ASSEMBLY OF A WORK TOWER, A DRILLWELL AND A PRODUCTION TEST COLUMN, AND A PRODUCTION TEST COLUMN.
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机译:作业塔,钻杆和生产测试柱以及生产测试柱的组件。
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摘要
Method and apparatus for testing offshore wells where a conduit string connected with a testing string is supported in a wellhead during testing operations and where a combination of gravity responsive means and extensible means effect operation of a testing valve.
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