天然气动态平衡成藏的四个基本条件

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ON PRINCIPAL FACTORS FOR THE FORMATION OF NATURAL GAS POOLS UNDER A SYNAMIC BALANCE REGIME

摘要: 作者根据天然气的生成、聚集与散失之间的动态平衡关系,对天然气动态平衡成藏的四个基本条件进行论述。在生成方面,主要是气源和生气高峰:在聚集与散失方面,主要是封盖条件和构造环境。归纳行来即:充沛的气源、生气高峰的时代越新越好、良好的封盖条件和比较稳定的后期构造环境。

Abstract: The author of this paper describes four principal factors for the formation of nautral gas pools under a dynamic balance regime based on the relationship between the generation, accumulation and dissipation of natural gas.The source rocks and the stage of gas generation peak are the most important factors in the formation of gas pool while sealing efficiency and tectonic settings are the important factors for the gas accumulation and dissipation. Therefore, it is concluded that four fundamental factros for the formation of natural gas pools are of abundant gas source, the late stage of gas generation peak, excellent sealing efficiency and stable teetenic settings.

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