发明名称 |
Electrode well for electrically heating a subterranean formation |
摘要 |
An improved electrode for electrically heating a subterranean formation includes a plurality of electrically conductive rod-like members that extend outwardly from a central well bore to provide increased area for conducting electrical current from a source into said subterranean formation. The improved electrode apparatus is adapted to be lowered into a well bore which has been drilled into the subterranean formation and, thereafter, the plurality of rod-like members are driven outwardly from the central well bore. Guide means are provided to direct the rod-like members outwardly into the subterranean formation as a central member is forced downwardly.
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申请公布号 |
US4084639(A) |
申请公布日期 |
1978.04.18 |
申请号 |
US19760751057 |
申请日期 |
1976.12.16 |
申请人 |
PETRO CANADA EXPLORATION INC. |
发明人 |
TODD, JOHN C. |
分类号 |
E21B7/04;E21B43/24;(IPC1-7):E21B43/25 |
主分类号 |
E21B7/04 |
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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