Invention Grant
- Patent Title: Directional drilling control apparatus and methods
- Patent Title (中): 定向钻井控制装置及方法
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Application No.: US13741880Application Date: 2013-01-15
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Publication No.: US08602126B2Publication Date: 2013-12-10
- Inventor: Scott Boone , Brian Ellis , Beat Kuttel , John Thomas Scarborough , Chris Papouras
- Applicant: Canrig Drilling Technology Ltd.
- 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: E21B7/04
- IPC: E21B7/04

Abstract:
Apparatus and methods to steer a hydraulic motor when elongating a wellbore having a non-vertical component that includes a quill adapted to transfer torque, rotation, or position between a drive assembly and a drillstring, a bottom hole assembly (BHA) including a toolface orientation detector and at least one measurement while drilling (MWD) instrument or wireline-conveyed instrument, and a controller configured to transmit operational control signals to minimize friction between a drillstring and a wellbore, wherein the instrument is configured to detect pressure between an external surface of the BHA and an inner diameter of the wellbore.
Public/Granted literature
- US20130126241A1 DIRECTIONAL DRILLING CONTROL APPARATUS AND METHODS Public/Granted day:2013-05-23
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