发明授权
- 专利标题: Autonomous connection evaluation and automated shoulder detection for tubular makeup
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申请号: US15445361申请日: 2017-02-28
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公开(公告)号: US10422450B2公开(公告)日: 2019-09-24
- 发明人: Rainer Ruehmann , Benjamin Sachtleben , David Geissler
- 申请人: Weatherford Technology Holdings, LLC
- 申请人地址: US TX Houston
- 专利权人: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
- 当前专利权人: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
- 当前专利权人地址: US TX Houston
- 代理机构: Patterson + Sheridan, LLP
- 主分类号: F16L15/00
- IPC分类号: F16L15/00 ; E21B19/16 ; G01L5/24 ; E21B17/042
摘要:
A method of connecting a first threaded tubular to a second threaded tubular includes engaging the threads of the tubulars and rotating the first tubular relative to the second tubular to makeup a threaded connection. The method further includes, during makeup of the threaded connection: measuring time, measuring torque applied to the connection, and measuring turns of the first tubular. The method further includes using a programmable logic controller for: evaluating at least one of the measured turns, measured torque, and measured time for at least one of a discontinuity, a torque spike, and a torque drop and accepting or rejecting the connection based on the evaluation.
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