Abstract
Wangfu fault depression Huoshiling Formation in southern Songliao Basin volcanic rocks with larger gas potential, but the volcanic reservoir control factors is not clear, the author take Well Wangfu 1 for example, explore the Huoshiling Formation of volcanic rock reservoir control factors. Well Wangfu 1 main lithology is andesite, volcanic breccia and tuff;on the lithofacies is given priority to with the overflow facies, followed by eruption facies, a small amount of volcanic sedimentary facies; denudation, devitrify and tectonism have the significance on improving reserving space; gaps in the tuff to improve large reservoir, it is more obvious that andesite and volcanic breccia improving permeability; volcanic breccia of Well Wangfu 1 is the relatively favorable reservoir space.
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