发明名称 |
Wear bushing running and retrieval tools |
摘要 |
Devices and methods for selectively emplacing a wear bushing in a wellhead housing and removing it therefrom. A drill string-mounted running tool is used to selectively engage the wear bushing during emplacement and removal. The wear bushing need not be removed each time the drill string is tripped into or out of the well. In addition, the drill string may continue to be lowered after the wear bushing is landed since the running tools described can easily pass through the bushing.
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申请公布号 |
US2002092656(A1) |
申请公布日期 |
2002.07.18 |
申请号 |
US20010802085 |
申请日期 |
2001.03.08 |
申请人 |
FORD DAVID L.;KOEN KEVIN R.;HINES FERGUS COUTTS |
发明人 |
FORD DAVID L.;KOEN KEVIN R.;HINES FERGUS COUTTS |
分类号 |
E21B17/10;(IPC1-7):E21B23/00 |
主分类号 |
E21B17/10 |
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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