Invention Application
- Patent Title: CLOSED LOOP CONTROL OF DRILLING CURVATURE
- Patent Title (中): 钻井曲线的闭环控制
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Application No.: PCT/US2016/064271Application Date: 2016-11-30
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Publication No.: WO2017095959A1Publication Date: 2017-06-08
- Inventor: HORNBLOWER, Peter , HOUGH, Steven David , IGNOVA, Maja
- Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION , SCHLUMBERGER CANADA LIMITED , SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V.
- Applicant Address: 300 Schlumberger Drive, Sugar Land, Texas 77478 US
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION,SCHLUMBERGER CANADA LIMITED,SERVICES PETROLIERS SCHLUMBERGER,SCHLUMBERGER TECHNOLOGY B.V.
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION,SCHLUMBERGER CANADA LIMITED,SERVICES PETROLIERS SCHLUMBERGER,SCHLUMBERGER TECHNOLOGY B.V.
- Current Assignee Address: 300 Schlumberger Drive, Sugar Land, Texas 77478 US
- Agency: KLINGER, David W. et al.
- Priority: US62/261,461 20151201
- Main IPC: E21B7/06
- IPC: E21B7/06 ; E21B44/00 ; E21B41/00
Abstract:
A downhole closed loop method for controlling a curvature of a subterranean wellbore while drilling includes controlling a direction of drilling such that the drilling attitude is substantially equal to a setpoint attitude. A setpoint rate of penetration is processed in combination with a setpoint dogleg severity to compute a setpoint attitude increment. The setpoint attitude may be adjusted by the setpoint attitude increment. The setpoint attitude may be incremented at some interval to control the curvature of the wellbore while drilling.
Information query
