发明公开
- 专利标题： SYSTEMS AND METHODS OF FORMING SUBSURFACE WELLBORES
- 专利标题（中）： 系统和成型方法海底
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申请号： EP09821049.5申请日： 2009-10-09
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公开(公告)号： EP2334894A1公开(公告)日： 2011-06-22
- 发明人: EDBURY, David Alston , MACDONALD, Duncan Charles
- 申请人： Shell Oil Company , Shell Internationale Research Maatschappij B.V.
- 申请人地址： One Shell Plaza P.O. Box 2463 Houston, TX 77252-2463 US
- 专利权人： Shell Oil Company,Shell Internationale Research Maatschappij B.V.
- 当前专利权人： Shell Oil Company,Shell Internationale Research Maatschappij B.V.
- 当前专利权人地址： One Shell Plaza P.O. Box 2463 Houston, TX 77252-2463 US
- 代理机构： Matthezing, Robert Maarten
- 优先权： US104974P 20081013; US168498P 20090410
- 国际公布： WO2010045102 20100422
- 主分类号： E21B33/02
- IPC分类号： E21B33/02
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.
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