发明名称 |
ELECTROMAGNETIC POWER AND COMMUNICATION LINK PARTICULARLY ADAPTED FOR DRILL COLLAR MOUNTED SENSOR SYSTEMS |
摘要 |
An electromagnetic coupling system is disclosed which includes a first electromagnetic transducer sealingly disposed in an outer wall of a tool mandrel, the mandrel adapted to be positioned in a drill collar. A second electromagnetic transducer is sealingly disposed in an interior of a port in the drill collar. The second transducer is positioned so that it is proximate the first transducer when the mandrel is positioned in the drill collar. A third electromagnetic transducer is sealingly disposed in an exterior of the port in the collar. The second and third transducers define a sealed chamber in the port. The second and third transducers are electrically coupled to power conditioning and signal processing circuits disposed in the chamber. A fourth transducer is positioned proximate the third transducer. The fourth transducer is electrically coupled to at least one of a sensor, an external communication line and an external power line.
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申请公布号 |
CA2412388(A1) |
申请公布日期 |
2003.07.18 |
申请号 |
CA20022412388 |
申请日期 |
2002.11.22 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
GABLER, KATE IRENE STABBA;CHALITSIOS, CONSTANTYN |
分类号 |
E21B47/01;E21B47/12;G08C19/16;(IPC1-7):E21B47/12;G01V3/34 |
主分类号 |
E21B47/01 |
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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