发明授权
- 专利标题： Apparatus and method for improvements in wellbore drilling
- 专利标题（中）： 井眼钻井改进的装置和方法
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申请号： US12598628申请日： 2008-05-30
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公开(公告)号： US08312940B2公开(公告)日： 2012-11-20
- 发明人: Louise Bailey , John Cook , Jennifer Edwards , Gerald Meeten , Jonathan Phipps
- 申请人： Louise Bailey , John Cook , Jennifer Edwards , Gerald Meeten , Jonathan Phipps
- 申请人地址： US TX Sugar Land
- 专利权人： Schlumberger Technology Corporation
- 当前专利权人： Schlumberger Technology Corporation
- 当前专利权人地址： US TX Sugar Land
- 代理商 Steven A. Gahlings; Rachel Greene
- 优先权： GB0710563.8 20070602
- 国际申请： PCT/GB2008/001817 WO 20080530
- 国际公布： WO2008/149063 WO 20081211
- 主分类号： E21B17/10
- IPC分类号： E21B17/10
摘要：
A tool for use in wellbore drilling that is suitable for use with a drill string for drilling a wellbore having an inner wall. The tool comprises a cylindrical abrasion surface for contacting the inner-wall and generating particles of solid material, and a smearing device coupled with the drill string for applying radial and circumferential force to smear the generated particles onto the inner wall of the wellbore.
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