发明公开
- 专利标题： BIT FOR DRILLING WELLS AND ASSOCIATED DRILLING METHOD
- 专利标题（中）： 凿用于钻孔的和相应的钻探方法
-
申请号： EP08806993.5申请日： 2008-04-22
-
公开(公告)号： EP2142749A2公开(公告)日： 2010-01-13
- 发明人: NAEGEL, Matthieu , DELWICHE, Robert , DESMETTE, Sébastian , DESCHAMPS, Benoît , HAHATI, Abdelhakim
- 申请人： Total S.A.
- 申请人地址： 2, place Jean Millier La Défense 6 92400 Courbevoie FR
- 专利权人： Total S.A.
- 当前专利权人： Total S.A.
- 当前专利权人地址： 2, place Jean Millier La Défense 6 92400 Courbevoie FR
- 代理机构： Hirsch & Associés
- 优先权： FR0702919 20070423
- 国际公布： WO2008149240 20081211
- 主分类号： E21B10/04
- IPC分类号： E21B10/04 ; E21B10/43 ; E21B10/02 ; E21B49/02
摘要：
The invention relates to a bit for drilling wells comprising: - a front face, - a plurality of radial blades (2) provided with cutting elements (3), the blades being distributed around the front face, - a space (4) for forming a core (10), the space being situated at the centre of the front face, - a cavity (5) for evacuating the core towards the periphery of the bit, the cavity being situated between two adjacent blades. The invention also relates to a method for drilling wells using the bit. The invention makes it possible to rapidly drill wells of great depth in all types of rocks without the risk of clogging.
公开/授权文献
- EP2142749B1 BIT FOR DRILLING WELLS AND ASSOCIATED DRILLING METHOD 公开/授权日：2012-04-04
信息查询
