Method of producing gas from fluid containing beds

Details Method of producing gas from fluid containing beds Method of producing gas from fluid containing beds

E - Fixed Constructions

21

B

E21B 43/16 (2006.01) E21B 43/00 (2006.01) E21B 43/25 (2006.01) E21B 43/40 (2006.01)

Patent

CA 2152899

A method of producing gas from fluid containing beds having at least one gas trap, includes influencing the bed by means of elastic vibrations generated directly in the bed and/or in a medium contacting the bed, and removal of gas from the trap, a source oscillation frequency being varied during the influence from a minimum value to a maximum one and vice versa within the frequency range from 0.1 to 350 Hz, preferably from 1 to 30 Hz. The frequency variation is effected in a monotonous way, including the influence in accordance with the harmonic law, and/or in a discrete way. The discrete variation of the frequency is accompanied by increasing the oscillation amplitude. Additionally, a pressure is reduced in the bed or a part thereof. The additional oscillation sources are used. Periodical oscillations are accompanied by influencing by means of pulses, batches of pulses and/or wave trains. The bed fluid is pumped out, transported to the surface, the heat thereof is utilized, and the fluid is repumped to the bed at a simultaneous influence by means of elastic vibrations. To transmit the oscillating influence to the bed, a wavequide, provided with a concentrator, is used.

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