发明名称 SYSTEMS AND METHODS OF FORMING SUBSURFACE WELLBORES
摘要 Systems and methods for forming subsurface wellbores are described. A system may include a rack and pinion a rack and pinion system and an automatic position control system. The rack and pinion includes a chuck drive system configured to operate a drilling string. The automatic position control system includes at least one measurement sensor coupled to the rack and pinion system. The automatic position control system is configured to control the rack and pinion system to determine a position of the drilling string.
申请公布号 CA2739088(A1) 申请公布日期 2010.04.22
申请号 CA20092739088 申请日期 2009.10.09
申请人 SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. 发明人 EDBURY, DAVID ALSTON;MACDONALD, DUNCAN CHARLES
分类号 E21B33/02 主分类号 E21B33/02
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