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. |
申请公布号 |
GB2406595(B) |
申请公布日期 |
2007.12.27 |
申请号 |
GB20040021989 |
申请日期 |
2004.10.04 |
申请人 |
WEATHERFORD/LAMB INC. |
发明人 |
MARK G GLASER;JACK ALLEN;MARLON MCADAMS;DAN E ROGERS;GERALD M FERGUSON;RALPH A ALVAREZ |
分类号 |
E21B43/14;E21B7/04;E21B7/06;E21B7/08;E21B23/12;E21B33/03;E21B33/047;E21B41/00;E21B43/30 |
主分类号 |
E21B43/14 |
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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