发明公开
- 专利标题： Dual tractor drilling system
- 专利标题（中）： Ziehvorrichtung zum Bohren
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申请号： EP04292251.8申请日： 2004-09-20
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公开(公告)号： EP1640556A1公开(公告)日： 2006-03-29
- 发明人: Lavrut, Eric , Kotsonis, Spyro
- 申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V.
- 申请人地址： 42, rue Saint-Dominique 75007 Paris FR
- 专利权人： SERVICES PETROLIERS SCHLUMBERGER,SCHLUMBERGER HOLDINGS LIMITED,SCHLUMBERGER TECHNOLOGY B.V.
- 当前专利权人： SERVICES PETROLIERS SCHLUMBERGER,SCHLUMBERGER HOLDINGS LIMITED,SCHLUMBERGER TECHNOLOGY B.V.
- 当前专利权人地址： 42, rue Saint-Dominique 75007 Paris FR
- 代理机构： Hyden, Martin Douglas
- 主分类号： E21B4/18
- IPC分类号： E21B4/18
摘要：
The invention provides a drilling system for use in a borehole through an underground formation, comprising:
a drilling assembly including a drill bit for drilling through the formation and a drilling drive;
conveyance means including a conveyance drive connected to the drilling assembly and operable to move the drilling assembly through the borehole,
wherein the conveyance drive is operable to move the drilling assembly along the borehole into a drilling position and the drilling drive is operable to urge the drill bit into contact with the formation when drilling takes place in the drilling position.
a drilling assembly including a drill bit for drilling through the formation and a drilling drive;
conveyance means including a conveyance drive connected to the drilling assembly and operable to move the drilling assembly through the borehole,
wherein the conveyance drive is operable to move the drilling assembly along the borehole into a drilling position and the drilling drive is operable to urge the drill bit into contact with the formation when drilling takes place in the drilling position.
公开/授权文献
- EP1640556B8 Dual tractor drilling system 公开/授权日：2008-10-15
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