发明名称 |
DOWNHOLE TOOL AND METHOD |
摘要 |
A downhole tool and apparatus is described for logging and/or remedial operations in a wellbore in a hydrocarbon reservoir. The tool comprises an autonomous unit (1) for measuring downhole conditions, preferably flow conditions. The autonomous unit comprises locomotion means (12) for providing a motion along said wellbore; means (14) for detecting said downhole conditions; and logic means (113) for controlling said unit, said logic means being capable of making decisions based on at least two input parameters. It can be separately attached to a wireline unit (22) connected to the surface or launched from the surface. The connection system (31, 32) between both units can be repeatedly operated under down hole conditions and preferably includes an active component for closing and/or breaking the connection.
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申请公布号 |
CA2259569(C) |
申请公布日期 |
2008.08.26 |
申请号 |
CA19972259569 |
申请日期 |
1997.07.11 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
BARRETT, MICHAEL PAUL;SHEPPARD, MICHAEL CHARLES;JARDINE, STUART INGLIS |
分类号 |
E21B47/12;E21B17/02;E21B23/00;E21B44/00 |
主分类号 |
E21B47/12 |
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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