| 摘要 |
A method for underground gasification of hydrocarbon-containing bed includes drilling of at least two production wells with vertical-horizontal shafts, and at least one gas outlet well, placement of electrodes in the vertical-horizontal shafts of the production wells, heating of the field, with obtaining gas-vapor mixture ant its removal through gas outlet well. Heating of the bed is performed in sequential thermo-zone sections, the first thermo-zone section is heated with application of voltage to two electrodes placed in horizontal shafts of production wells, between the electrodes formation of electric arc is initiated till obtaining of heat breakage in the inter-electrode zone in the surface layer of the well, with formation of channel of resistive heating between electrodes there, and heating of the bed at the next thermo-zone sections is carried out with control of current strength on the electrodes at simultaneous opposite displacement of electrodes in horizontal shafts of production wells with rate of 10-205 m/day, and control of physical-chemical parameters of taken out gas-vapor mixture and parameters of current load on electrodes is performed. |
