松辽盆地东南隆起区长期隆升背景下的油气成藏模式
网络出版日期: 2007-03-15
The pool-forming pattern in the condition of arching in the southeast uplift in Songliao Basin
Online published: 2007-03-15
东南隆起区为松辽盆地的一级构造单元, 由松辽盆地南部区域构造演化研究可知, 东南隆起区在嫩江组沉积末期和古近纪的构造反转抬升作用下一直处于隆起状态, 使嫩江组剥蚀严重, 并且未接受上白垩统的四方台组、明水组及第三系沉积, 导致沉积盖层变薄, 对沉积物的成岩演化、排液作用、已形成的地温场、压力场有较大的影响, 不仅控制了油气的运移、聚集和成藏, 还改造了烃源岩的生烃行为。因此, 该区的成藏条件比较复杂, 发育残留油气藏、次生油气藏及晚期成熟源岩控制的油气藏等类型的油气藏, 其成藏模式的建立, 对探索油气分布规律有非常大的意义。
杨占龙 , 彭立才 , 陈启林 , 郭精义 , 李在光 , 黄云峰 . 松辽盆地东南隆起区长期隆升背景下的油气成藏模式[J]. 岩性油气藏, 2007 , 19(1) : 57 -61 . DOI: 10.3969/j.issn.1673-8926.2007.01.010
The southeast upwelling area is first-order tectonic unit of Songliao Basin from the research of structural evolution in south of Songliao Basin.Under the effect of tectonic reversal during the end period of Nenjiang and Early Tertiary,the southeast upwelling area is in the state of uplifting all the time, which caused Nenjiang Group eroded seriously.And it did not accept the Sifangtai Group and Mingshui Group of Cretaceous and Teriary sediment, which caused the thinning of sedimentary seal and the influence on the diagenetic evolution, drainage, geotemprature and geopressure fields.This state not only controls the migration,accumulation and reservoir-forming,but also changes the hydrocarbon-generation.So the accumulation condition is complicated.It is significant to buildup the reservoir-forming model of the residual reservoir, secondary hydrocarbon reservoir and reservoir controlled by mature source rocks formed in late period for the exploration of oil and distribution.
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