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本文认为阳新统的天然气并非煤成气,而是阳新统本身的油源岩生成的。论述了阳新统碳酸盐岩的油源岩的特征及在高成熟期,由热力作用使油演化成干气的机理及条件,并提出了高成熟度的十四项地化指标。
This paper argues that the Yangxintong gas is not a coal-formed gas but a source rock derived from the Yanggunate. The characteristics of oil source rocks of Yanggutuo carbonate rocks and the mechanism and conditions of their evolution from oil to dry gas at high maturity are discussed. Fourteen geochemical indicators with high maturity are proposed.