发明名称 |
SYSTEM FOR FORMING A WINDOW AND DRILLING A SIDETRACK WELLBORE |
摘要 |
The present invention discloses and claims a system for forming an opening, or window, in a downhole tubular for the subsequent formation of a lateral wellbore. In the system of the present invention, an apparatus is run into the parent wellbore which includes at least a tubular having a drill bit, a diverter such as a whipstock releasably connected to the drill bit, an anchoring device such as a packer, and a milling device. This apparatus allows for the milling of a window in the parent wellbore, and the drilling of a lateral wellbore through that window, in a single trip. |
申请公布号 |
WO03071084(A2) |
申请公布日期 |
2003.08.28 |
申请号 |
WO2003EP50011 |
申请日期 |
2003.02.07 |
申请人 |
WEATHERFORD/LAMB, INC.;HAUGEN, DAVID, MICHAEL;ROBERTS, JOHN, DOUGLAS;HARDING, RICHARD, PATRICK |
发明人 |
HAUGEN, DAVID, MICHAEL;ROBERTS, JOHN, DOUGLAS |
分类号 |
E21B7/06;E21B7/08;E21B17/07;E21B27/00;E21B29/02;E21B29/06 |
主分类号 |
E21B7/06 |
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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