【摘要】 中国大多数气田最终形成、定型于新近纪 -第四纪 ,它们广泛地分布于各类含气 (油 )盆地。因此 ,晚期、超晚期生烃成藏、定型以及气藏受制于新近纪以来构造演化历史是中国天然气带有普遍性的重要特征。中国气藏形成与新近纪以来构造演化历史关系密切 ,主要体现在 :(1)在西部 ,形成的中国式前陆盆地是中国最主要天然气聚集区之一 ,为形成众多气田创造了有利条件 ,也是这些盆地本部气藏主要的形成、定型时期。 (2 )在中部 ,是四川盆地所有气田主要的形成、定型时期 ;在鄂尔多斯盆地促进了靖边至乌审旗地区天然气的进一步富集。 (3)在东部 ,为渤海海域晚期成藏创造了有利的地质条件 ,也促进了其他盆地 (坳陷 )一些气藏的形成。 (4 )在近海海域 ,既促进了有机成因气藏的快速形成 ,也促进了无机成因非烃气藏以及无机与有机成因天然气的混源 ,形成了独具特色的成藏模式更多还原

【Abstract】 Most of the gas fields in China have been formed and finalized in Neogene Quaternary,which distribute widely in various petroliferous basins.The gas pools in China are generally characterized by late or super late hydrocarbon generation and accumulation,and by restriction of tectonic evolution since Neogene.The close relationship between the gas pools in China and tectonic evolution since Neogene can be summarized as follows:(1)In west China,the foreland basins,formed during this period,constitute one of the main gas accumulation provinces in China,and provide favorable conditions for the formation of numerous gas fields.The gas fields in these basins have mainly been formed and finalized in this period.(2)In central China,all the gas fields in Sichuan basin have been formed and finalized in this period,while gas accumulations in Jingbian Wushenqi area in Erdos basin have further been enriched in this period.(3)In east China, these tectonic movements create favorable geological conditions for late reservoiring of gas in Baohai sea area,and promoting the formation of some gas fields in other basins(or depressions).(4)In offshore area,they promote not only the rapid formation of organic origin gas fields,but also the formation of inorganic origin non hydrocarbon gas fields,as well as the formation of a unique reservoiring pattern with mixed source of organic and inorganic origin genetic gases.更多还原