Drilling method |
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| 申请号 | EP04105800.9 | 申请日 | 1999-12-22 | 公开(公告)号 | EP1505251A3 | 公开(公告)日 | 2007-02-14 |
| 申请人 | WEATHERFORD/LAMB, INC.; | 发明人 | METCALFE, Paul, David; SIMPSON, Neil, Andrew, Abercrombie; | ||||
| 摘要 | A drilling method comprises advancing a drill string through a cased section of a wellbore. The drill string comprises an expandable tubular, a drill assembly having a drill bit, and a tubing expander. The expandable tubular is advanced through the wellbore below the cased section, and at least a portion of the expandable tubular is expanded into the drilled wellbore using the expander. The expandable tubular does not overlap the cased section of the wellbore. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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