发明名称 |
APPARATUS AND METHOD FOR CLEANING AND SEALING A WELL BOREHOLE PORTION FOR FORMATION EVALUATION |
摘要 |
A borehole wall cleaning apparatus and method for obtaining an improved seal between a fluid sampling device and a portion of the borehole wall. Clean drilling fluid is pumped into a drilling tool using a mud pump. A fluid diverter in the tool diverts all or part of the clean drilling fluid through a port to clear a portion of a borehole wall. A sealing pad is moved against t he clean portion. A sampling port is exposed to the sealed portion for sampling and/or testing fluid from the formation.
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申请公布号 |
CA2472105(C) |
申请公布日期 |
2007.01.23 |
申请号 |
CA20032472105 |
申请日期 |
2003.10.24 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
MEISTER, MATTHIAS;HERBERG, WOLFGANG;KREUGER, SVEN |
分类号 |
E21B49/10;E21B37/00 |
主分类号 |
E21B49/10 |
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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