发明授权
- 专利标题: Methods for measuring leakage rate and inferring production rate of an oilfield downhole pump
- 专利标题(中): 油田井下泵泄漏率测定方法及推断生产率的方法
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申请号: US13187330申请日: 2011-07-20
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公开(公告)号: US08849594B2公开(公告)日: 2014-09-30
- 发明人: Thomas M. Mills
- 申请人: Thomas M. Mills
- 申请人地址: US TX Lufkin
- 专利权人: Lufkin Industries, Inc.
- 当前专利权人: Lufkin Industries, Inc.
- 当前专利权人地址: US TX Lufkin
- 代理机构: Sutton McAughan Deaver, PLLC
- 主分类号: E21B47/10
- IPC分类号: E21B47/10 ; G01F3/14 ; G06F19/00 ; G06F17/40 ; E21B47/00
摘要:
Methods for measuring the leakage rate of a downhole pump using either measured axial load information from the drive rod string or using measured production data. The invention is for methods of applying the leakage rate to a downhole dynamometer card, for a reciprocating rod pump, for determining well production.
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