基本信息:
- 专利标题: Apparatus for testing oil wells using annulus pressure
- 专利标题(中):使用压力测试油井的装置
- 申请号:US47111974 申请日:1974-05-17
- 公开(公告)号:US3858649A 公开(公告)日:1975-01-07
- 发明人: WRAY GARY Q , HOLDEN JOHN C
- 申请人: HALLIBURTON CO
- 专利权人: Halliburton Co
- 当前专利权人: Halliburton Co
- 优先权: US47111974 1974-05-17; US33598073 1973-02-26
- 主分类号: E21B33/12
- IPC分类号: E21B33/12 ; E21B34/10 ; E21B49/00 ; E21B49/08 ; E21B47/00
摘要:
An annulus pressure operated oil well testing and sampling apparatus utilizes hydrostatic pressure to supplement spring means which biases against valve means to hold the valve means closed until application of sufficient hydraulic pressure to the annular fluid opens the tool to the formation and allows testing operations to be performed. A subsequent intentional or inadvertent release or sudden extreme increase of applied pressure on the annular fluid actuates means to close the valve means against further formation fluid flow.
摘要(中):
环形压力操作油井测试和取样装置利用静水压力补充弹簧装置,该弹簧装置偏压阀装置以保持阀装置关闭,直到对环形流体施加足够的液压将工具打开到地层并允许测试操作为 执行。 随后有意或无意地释放或突然极大地增加对环形流体施加的压力致动装置,以关闭阀装置以抵抗另外的地层流体流动。
信息查询:
EspacenetIPC结构图谱:
E | 固定建筑物 |
--E21 | 土层或岩石的钻进;采矿 |
----E21B | 土层或岩石的钻进;从井中开采油、气、水、可溶解或可熔化物质或矿物泥浆 |
------E21B33/00 | 井眼或井的密封或封隔 |
--------E21B33/02 | .地面密封或封隔 |
----------E21B33/12 | ..封隔器;封堵物 |