发明授权
- 专利标题： Rotating continuous flow sub
- 专利标题（中）： 旋转连续流动
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申请号： US12984429申请日： 2011-01-04
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公开(公告)号： US08627890B2公开(公告)日： 2014-01-14
- 发明人: Thomas F. Bailey , Mark A. Mitchell , David Pavel , Lev Ring , Ram K. Bansal , David Iblings
- 申请人： Thomas F. Bailey , Mark A. Mitchell , David Pavel , Lev Ring , Ram K. Bansal , David Iblings
- 申请人地址： US TX Houston
- 专利权人： Weatherford/Lamb, Inc.
- 当前专利权人： Weatherford/Lamb, Inc.
- 当前专利权人地址： US TX Houston
- 代理机构： Patterson & Sheridan, L.L.P.
- 主分类号： E21B21/02
- IPC分类号： E21B21/02 ; E21B34/00
摘要：
A method for drilling a wellbore includes drilling the wellbore by advancing the tubular string longitudinally into the wellbore; stopping drilling by holding the tubular string longitudinally stationary; adding a tubular joint or stand of joints to the tubular string while injecting drilling fluid into a side port of the tubular string, rotating the tubular string, and holding the tubular string longitudinally stationary; and resuming drilling of the wellbore after adding the joint or stand.
公开/授权文献
- US20110155379A1 ROTATING CONTINUOUS FLOW SUB 公开/授权日：2011-06-30
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