发明名称 |
METHOD OF DRILLING AND COMPLETING MULTIPLE WELLBORES INSIDE A SINGLE CAISSON |
摘要 |
A method and apparatus for drilling and completing multiple wellbores from a single drilling rig and from within a single wellhead is provided. In one embodiment, a template is disposed at a predetermined location downhole within a casing. In one aspect, a first casing string is lowered with the template to the predetermined location and disposed within a first wellbore. A second wellbore may be drilled through a bore in the template. A second casing string may then be lowered through the bore into the second wellbore. In another embodiment, at least two wellbores are drilled and completed from a surface casing having a crossover portion.
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申请公布号 |
CA2689034(C) |
申请公布日期 |
2012.04.17 |
申请号 |
CA20042689034 |
申请日期 |
2004.10.04 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
GLASER, MARK C.;ALLEN, JACK R.;FERGUSON, GERALD M.;ALVAREZ, RALPH A. |
分类号 |
E21B7/06;E21B7/04;E21B23/12;E21B33/03;E21B33/047;E21B41/00;E21B43/30 |
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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