发明公开
- 专利标题： PUMP-IN SEAL
- 专利标题（中）： PUMPENINTERNE DICHTUNG
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申请号： EP10821280.4申请日： 2010-09-30
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公开(公告)号： EP2483523A2公开(公告)日： 2012-08-08
- 发明人: DRENTH, Christopher, L. , IONDOV, George , IBRAHIM, George
- 申请人： Longyear TM, Inc.
- 申请人地址： 10808 South River Front Parkway Suite 600 South Jordan, UT 84095 US
- 专利权人： Longyear TM, Inc.
- 当前专利权人： Longyear TM, Inc.
- 当前专利权人地址： 10808 South River Front Parkway Suite 600 South Jordan, UT 84095 US
- 代理机构： Walker, Stephen
- 优先权： US893234 20100929; US247859P 20091001
- 国际公布： WO2011041577 20110407
- 主分类号： E21B49/10
- IPC分类号： E21B49/10
摘要：
An assembly may be disposed within a drill string. The assembly may be moved within and along the drill string using hydraulic pressure. A core sample may be collected within the assembly, and the assembly may be retrieved to obtain the core sample. The assembly may include a seal that may be configured to form a seal with different inner diameters of a variable-diameter drill rod of the drill string.
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