发明名称 |
Sliding sleeve casing tool |
摘要 |
<p>A sliding sleeve casing tool apparatus (10) for use in a casing string in a wellbore comprises a housing (58), a communication port (64) and a sliding sleeve (70) to open and close port (64). A radioactive source (146) is attached to the housing (58), and the orientation of the source may be determined by use of a detector apparatus, such as a rotational gamma ray detector. The casing valve thus may be aligned with the fracture of a zone of interest in the well. A plurality of casing valves may be used, with at least one having a radioactive source. <IMAGE> <IMAGE> <IMAGE></p> |
申请公布号 |
EP0633391(B1) |
申请公布日期 |
1997.11.26 |
申请号 |
EP19940304509 |
申请日期 |
1994.06.21 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
VENDITTO, JAMES J.;STEPP, LEE WAYNE;SZARKA, DAVID D. |
分类号 |
E21B34/06;E21B34/14;E21B47/09;(IPC1-7):E21B34/14 |
主分类号 |
E21B34/06 |
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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