发明名称 |
Well abandonment apparatus |
摘要 |
A well abandonment apparatus is described. The apparatus can be run on drillstring and does not require the use of explosives to sever the casing. The apparatus includes both a cutting device to perforate and sever the casing and a sealing device to prevent well fluids from reaching the surface while the well abandonment operation is proceeding.
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申请公布号 |
US7380603(B2) |
申请公布日期 |
2008.06.03 |
申请号 |
US20050524282 |
申请日期 |
2005.02.10 |
申请人 |
WELL-WORX LIMITED |
发明人 |
JEFFREY STEVEN;ASHTON HAROLD;GRAY-TAYLOR IAN STUART |
分类号 |
E21B33/00;E21B23/01;E21B29/00;E21B29/06;E21B33/124;E21B33/126;E21B33/13 |
主分类号 |
E21B33/00 |
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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