发明名称 |
INSERT AND METHOD FOR DIRECTIONAL DRILLING |
摘要 |
An insert to convert a conventional rotary drill bit to a rotary steerable bit for a rotational directional drilling system. The insert comprises a cylindrical body adapted to be arranged within an intermediate space of the drill bit for receiving drilling fluid from a drill string and selectively directing the drilling fluid to nozzles of the drill bit. The insert may be rotatable and connected to a geostationary platform. Alternatively, the insert may be fixated in the drill bit, combined with a flow diverter connected to a geostationary platform. The insert is suitable to be introduced in the drill bit at a drilling location, including remote locations and off-shore rigs. |
申请公布号 |
EP2992163(A1) |
申请公布日期 |
2016.03.09 |
申请号 |
EP20140720579 |
申请日期 |
2014.04.28 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
BLANGÉ, JAN-JETTE;MCCLURE, PAUL, ANTHONY |
分类号 |
E21B10/60;E21B7/04;E21B7/06;E21B7/18 |
主分类号 |
E21B10/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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