STUDY OF MECHANICAL COMPRESSION EFFECT ON GAS FILTRATION THROUGH THE CRACK THROUGH THE CRACK FILLED WITH ACRYLATE COMPOSITION
L. A. Rybalkin, T. V. Shilova
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Угольный пласт, гидроразрыв, изоляционный экран, акрилатный состав, проницаемость, Coal seam, hydraulic fracturing, insulation screen, acrylate composition, permeability
Abstract
Hydraulic fracturing is a promising method used for increasing the permeability of a coal seam. Formation of an extensive network of drainage cracks contributes to increased gas recovery of coal. In this case, a negative factor is the breakthrough of cracks formed in the mine workings. In order to challenge this problem, it is proposed to screen mine workings with an additional crack filled with acrylate polymer containing solid inclusions, which prevents the closure of crack edges under the impact of rock pressure. The paper presents the results of experimental studies of acrylate screen gas permeability dependence on rock pressure.
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