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本文主要对碳酸盐岩中酸解气态烃的成因及地化意义进行研究。研究表明,酸解气态烃系属赋存于碳酸盐岩矿物中的有机烃类气体,成因复杂,影响因素较多,其中以成岩后生变化的影响最为显著。另外,根据对其地化特征的分析和研究,(1)酸解气态烃的湿度与生油岩有机质演化程度有关:(2)酸解气态烃的含量既与生油岩有机质的丰度和演化程度无关,也与生油岩的岩性、结构无关。这些特征进一步揭示了酸解气态烃受控于多种因素的本质。
In this paper, the origin and geochemical significance of acid-dissolved gaseous hydrocarbons in carbonate rocks are mainly studied. The results show that the acid-forming gaseous hydrocarbon belongs to the organic hydrocarbon gas that occurs in the carbonate minerals. The gas genesis is complicated and has many influencing factors, of which diagenetic epigenetic changes are the most significant. In addition, based on the analysis and study of its geochemical characteristics, (1) the acidity of the hydrocarbon-depleted hydrocarbons is related to the evolution of organic matter in the source rocks: (2) the content of acid-dissolved gaseous hydrocarbons is not only related to the abundance of organic matter in the source rocks Has nothing to do with the evolution, but also with the lithology of oil-bearing rocks, the structure has nothing to do. These features further reveal the nature of acid-controlled gaseous hydrocarbons controlled by many factors.