发明名称 |
CURRENT-DIRECTING APPARATUS FOR USE WITH A DOWNHOLE TOOL |
摘要 |
Shield apparatus are provided for use with logging instruments equipped with transverse magnetic dipole antennas. Flexible dielectric strips and dielectric cylindrical bodies are implemented with conductive elements in various patterns to form Faraday shield structures. The shields provide an extended conductive surface to the instrument support member and redirect axial currents along the borehole, protecting the underlying antennas from the undesired effects of these currents.
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申请公布号 |
US2003184303(A1) |
申请公布日期 |
2003.10.02 |
申请号 |
US20020113265 |
申请日期 |
2002.03.29 |
申请人 |
HOMAN DEAN M.;KIBBE CHARLES;CHEN KUO-CHIANG |
发明人 |
HOMAN DEAN M.;KIBBE CHARLES;CHEN KUO-CHIANG |
分类号 |
G01V3/28;(IPC1-7):G01V3/08 |
主分类号 |
G01V3/28 |
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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