发明授权
- 专利标题: Hydraulic tubing punch and method of use
- 专利标题(中): 液压管冲头及使用方法
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申请号: US124816申请日: 1998-07-29
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公开(公告)号: US6155150A公开(公告)日: 2000-12-05
- 发明人: Gary E. Cooper , Larry Thomas Palmer , Jonathan Price
- 申请人: Gary E. Cooper , Larry Thomas Palmer , Jonathan Price
- 申请人地址: TX Houston
- 专利权人: Baker Hughes Incorporated
- 当前专利权人: Baker Hughes Incorporated
- 当前专利权人地址: TX Houston
- 主分类号: E21B43/12
- IPC分类号: E21B43/12 ; B26F1/24
摘要:
An apparatus and method for driving a ramped drive assembly longitudinally, to drive a penetrator transversely, to cause the penetrator to penetrate and withdraw from a downhole tubular element. An anchor holds the tubing punch assembly in place in the downhole tubular element. A double piston assembly drives the drive assembly hydraulically in the downhole direction, thereby driving the ramp downhole, to force the penetrator outwardly to penetrate the tubular element. Thereafter, pulling uphole on the work string shears a shear sleeve, separating the housing of the tubing punch assembly from the work string. Further pulling on the work string partially withdraws the ramped drive assembly from the tubing punch assembly, thereby withdrawing the penetrator into the tubing punch assembly.
公开/授权文献
- USD435513S Optical fiber connector 公开/授权日:2000-12-26
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