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指出:莺歌海盆地是新生代发育的一个高温盆地,其高地温场及高大地热流值主要集中于盆地中部坳陷区的泥底辟构造带;由于热流体活动的分区分块与分层的局部性侵入,导致了CO_2等非烃气及烃类气运聚富集亦县分区分块与分层性。认为泥底辟发育演化及热流体上侵活动是控制天然气尤其是CO_2等非烃气运聚乃至富集成藏的主导因素,而CO_2等非烃气与烃类气的运聚时间及运聚通道的差异,则是控制和制约烃类气与非烃气差异运聚及富集成藏的关键所在。
It is pointed out that the Yinggehai Basin is a Cenozoic high temperature basin. The geothermal field and high geothermal flow in Yinggehai Basin are mainly concentrated in the diapir zone of the central depression in the basin. Due to the subdivision and delamination of the thermal fluid, Of the local invasion, leading to CO_2 and other non-hydrocarbon gas and hydrocarbon gas accumulation enrichment Yixian sub-block and stratification. It is considered that the development and evolution of mud diapirs and the intrusion of thermal fluid are the dominant factors that control the migration and accumulation of natural gas, especially CO 2, and other non-hydrocarbon gases. However, the migration and accumulation time of CO 2 and other non-hydrocarbon gases and hydrocarbons, The difference lies in the key point of controlling and restricting the differential transportation and accumulation of hydrocarbon gas and non-hydrocarbon gas.