METHOD OF UNDERGROUND GAS STORAGE ABANDONMENT

摘要

FIELD: oil-and-gas industry.SUBSTANCE: proposed method comprises extraction of gas active amount and gas buffer amount. Gas buffer amount is extracted unless its complete displacement by carbon dioxide or nitrogen injected at constant overpressure. Gas buffer amount is extracted by gas storage stationary compressor units while injection of carbon dioxide or nitrogen is made by mobile compressor units.EFFECT: ruled out fire and explosion risks and soil convergence, lower capital costs.1 dwg