Invention Grant
- Patent Title: Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular strings
- Patent Title (中): 用于组装和拆卸管状柱的油田管状旋转和旋转检测
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Application No.: US13293742Application Date: 2011-11-10
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Publication No.: US08490520B2Publication Date: 2013-07-23
- Inventor: Douglas A. Hunter
- Applicant: Douglas A. Hunter
- Applicant Address: US TX Houston
- Assignee: Canrig Drilling Technology Ltd.
- Current Assignee: Canrig Drilling Technology Ltd.
- Current Assignee Address: US TX Houston
- Agency: Haynes and Boone, LLP
- Main IPC: B25B13/54
- IPC: B25B13/54

Abstract:
Spin-in and spin-out apparatus and methods are presented wherein an oilfield tubular spinner used in combination with a wrench detects the shouldering-up of tubulars during make-up and tubular thread disengagement during break-out. Sensors are employed to quantify measurables indicative of shouldering-up and thread disengagement, the measurables being used to shutdown spin-in and spin-out operations. Thresholds are employed to detect measurable values of interest. Timers may be employed to monitor and control the spin-in and spin-out operations.
Public/Granted literature
- US20120055294A1 OILFIELD TUBULAR SPIN-IN AND SPIN-OUT DETECTION FOR MAKING-UP AND BREAKING-OUT TUBULAR STRINGS Public/Granted day:2012-03-08
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