发明名称 Method and apparatus for all multilateral well entry
摘要 In one embodiment, the invention relates to a method for location, or location and entry, of a lateral wellbore from a main wellbore of a multilateral hydrocarbon well, the method being characterized by unique operation of a controllably bent sub. The invention further relates to a system for location, or location and entry of a lateral wellbore, including a specialized controllably bent sub, and most preferably, to a controllably bent sub designed for efficient lateral wellbore location and/or entry.
申请公布号 US6349768(B1) 申请公布日期 2002.02.26
申请号 US19990410153 申请日期 1999.09.30
申请人 SCHLUMBERGER TECHNOLOGY CORPORATION 发明人 LEISING LAWRENCE J.
分类号 E21B7/08;E21B23/03;E21B41/00;E21B47/09;(IPC1-7):E21B7/08;E21B23/08;E21B23/12 主分类号 E21B7/08
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