发明名称 |
Apparatus for catching debris in a well-bore |
摘要 |
A down-hole tool is described for collecting loose debris particles in a well bore. The tool has a body connectable in a work string for actively diverting well fluid through the tool body with at least some of the diverted well fluid being filtered as it passes through the tool by a filter. In a preferred embodiment the tool also comprises a cleaning member, such as a wiper for wiping the casing or liner wall of the well and a trap for trapping filtered debris up stream of the filter.
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申请公布号 |
US6250387(B1) |
申请公布日期 |
2001.06.26 |
申请号 |
US19990235426 |
申请日期 |
1999.01.22 |
申请人 |
SPS-AFOS GROUP LIMITED |
发明人 |
CARMICHAEL MARK;HOWLETT PAUL |
分类号 |
E21B21/00;E21B37/00;(IPC1-7):E21B23/04 |
主分类号 |
E21B21/00 |
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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