发明名称 |
Tubing hanger with ball valve in the annulus bore |
摘要 |
A tubing hanger is provided for suspending a tubing hanger from a wellhead housing. The tubing hanger body includes a production bore and an annulus bore, a valve opening inlet port, a valve closed inlet port, and a hydraulically operated ball valve to selectively open and close the annulus bore. An actuator sleeve surrounds the ball valve and is movable in response to fluid pressure between the open and closed positions.
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申请公布号 |
US2003150620(A1) |
申请公布日期 |
2003.08.14 |
申请号 |
US20020071650 |
申请日期 |
2002.02.08 |
申请人 |
DEBERRY BLAKE;REIMERT LARRY |
发明人 |
DEBERRY BLAKE;REIMERT LARRY |
分类号 |
E21B33/043;E21B34/00;E21B34/04;(IPC1-7):E21B33/035 |
主分类号 |
E21B33/043 |
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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