发明名称 |
Method and apparatus for drilling horizontal holes in geological structures from a vertical bore |
摘要 |
This invention is directed to a method and apparatus for drilling horizontal holes in geological strata from a vertical position. The geological structures intended to be penetrated in this fashion are coal seams, as for in situ gasification or methane drainage, or in oil-bearing strata for increasing the flow rate from a pre-existing well. Other possible uses for this device might be for use in the leaching of uranium ore from underground deposits or for introducing horizontal channels for water and steam injections.
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申请公布号 |
US4317492(A) |
申请公布日期 |
1982.03.02 |
申请号 |
US19800124946 |
申请日期 |
1980.02.26 |
申请人 |
THE CURATORS OF THE UNIVERSITY OF MISSOURI |
发明人 |
SUMMERS, DAVID A.;BARKER, CLARK R.;KEITH, H. DEAN |
分类号 |
E21B4/18;E21B7/04;E21B7/06;E21B7/08;E21B7/18;E21B17/20;E21C41/24;(IPC1-7):E21B4/00 |
主分类号 |
E21B4/18 |
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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