发明名称 |
Induction heating of coal in situ |
摘要 |
The electric induction heating in situ of a selected portion of an underground coal deposit, for the purpose of facilitating extraction of gases, liquids, solids and energy from the deposit. The heating is conveniently effected by passing a time-varying electrical current through a conductor encompassing the selected portion. The conductive path is preferably a toroid, quasi-toroid, helix, or simulated toroid, quasi-toroid or helix, created by a drilling and passing one or more conductors through the drill holes.
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申请公布号 |
US4116273(A) |
申请公布日期 |
1978.09.26 |
申请号 |
US19760709830 |
申请日期 |
1976.07.29 |
申请人 |
FISHER, SIDNEY T.;FISHER, CHARLES B. |
发明人 |
FISHER, SIDNEY T.;FISHER, CHARLES B. |
分类号 |
E21B43/24;E21B43/243;E21C37/18;(IPC1-7):E21B43/24;E21C41/10 |
主分类号 |
E21B43/24 |
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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