| 摘要 |
A method of extracting gas from fluid-bearing strata (18) with at least one gas absorption column (19) involves subjecting the stratum (18) to elastic vibrations generated either in the stratum (18) or in the medium in contact with it by means of a vibration source (20), and removing the gases from the gas absorption column (19), the vibration frequency of the source (20) being varied during the operation from a minimum to a maximum value and back within a frequency range of 0.1 to 350 Hz, preferably 1 to 30 Hz. Variation of the frequency is monotonic, both in terms of the harmonic law and/or discretely. In addition, the pressure in the stratum (18) or part of it is reduced. Additional sources (2, 4) of vibration are used. Periodic vibrations are accompanied by pulses, pulse packets and/or wave trains. The liquid from the stratum is pumped out and brought to the surface and use is made of the heat, and subsequently it is returned to the stratum (18) while subjecting the latter to elastic vibrations. A waveguide (8) with a concentrator is used to convey vibrations to the stratum. <IMAGE> |
