| 摘要 |
A system for recovering gas trapped within the earth includes a casing ( 24 ) sized and configured to be positioned within a borehole in the earth, the casing ( 24 ) formed of a material that is transmissive to electromagnetic energy and gas within the earth; an antenna ( 40 ) sized and configured to be positioned within the casing ( 24 ). The antenna ( 40 ) has a distal end and a proximal end and including a radiating element at the distal end of the antenna ( 40 ) which, in operation, transmits electromagnetic energy toward a desired area of the earth, and an interior channel for allowing gas to be conveyed from the distal end to the proximal end of the antenna ( 40 ).
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