发明名称 |
Method and apparatus for severing a tubular |
摘要 |
An apparatus and method for severing a tubular, such as a drill string, which is stuck within a subterranean well bore. A volume of liquid explosive is positioned within a housing and initially restrained against movement therein. The housing is lowered within the tubular and positioned at a location where the tubular is to be severed. The volume of liquid explosive is then moved into closer proximity to the tubular and detonated thereby severing the tubular. A portion of the tubular is then removed from the well bore.
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申请公布号 |
US6053247(A) |
申请公布日期 |
2000.04.25 |
申请号 |
US19970955066 |
申请日期 |
1997.10.21 |
申请人 |
MARATHON OIL COMPANY |
发明人 |
WESSON, DAVID S.;SNIDER, PHILIP M. |
分类号 |
E21B29/02;(IPC1-7):E21B29/02 |
主分类号 |
E21B29/02 |
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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