发明名称 |
ELECTRICAL ISOLATION CONNECTOR FOR ELECTROMAGNETIC GAP SUB |
摘要 |
<p>A gap sub assembly can be used to form an electrical isolation in a drill string, across which a voltage is applied to generate a carrier signal for an electromagnetic (EM) telemetry system. The assembly comprises two conductive generally cylindrical components fashioned with a matching set of male and female rounded coarse threads, held such that a relatively uniform interstitial space is formed in the overlap space between them. The third component is a substantially dielectric electrical isolator component placed into the gap between the threads that effectively electrically isolates the two conductive components. Injecting the dielectric material under high pressure forms a tight bond resistant to the ingress of conductive drilling fluids (liquids, gases or foam), thus forming a high pressure insulating seal.</p> |
申请公布号 |
CA2577734(C) |
申请公布日期 |
2014.12.02 |
申请号 |
CA20072577734 |
申请日期 |
2007.02.09 |
申请人 |
EXTREME ENGINEERING LTD. |
发明人 |
WHALEN, DAVID D.;DOPF, ANTHONY R.;VERMEEREN, THOMAS H.;CAMWELL, PAUL L.;LOGAN, DEREK W. |
分类号 |
H01B17/56;E21B47/12 |
主分类号 |
H01B17/56 |
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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