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腰英台油田区是松辽盆地南部近几年发现的具有超亿吨级储量规模的大型含油气区。结合勘探实践对腰英台地区青山口组油气成藏条件分析表明,油气成藏的主控因素包括烃源、储层和输导三个方面。油气成藏主要围绕乾安次凹生烃中心,烃源岩控制油藏的聚集与分布;断裂一方面作为输导体系,另一方面控制着不同类型油藏的平面分布;沉积微相控制砂体的平面分布以及砂体的储集物性。最终指出了近源带、断裂带、砂体发育带三者叠置区是下步勘探的有利方向。
The Yaoyingtai Oilfield is a large-scale hydrocarbon-bearing area with the scale of over 100 million tons of reserves discovered in the south of Songliao Basin in recent years. According to the exploration practice, the hydrocarbon accumulation conditions of the Qingshankou Formation in the Yaoyingtai area show that the main controlling factors of hydrocarbon accumulation include hydrocarbon source, reservoir and transport. Hydrocarbon accumulation mainly surrounds the hydrocarbon accumulation center of the dry Anzigou and source rocks control the accumulation and distribution of the reservoirs. On the one hand, faults act as the transport system and on the other hand control the plane distribution of different types of reservoirs. Sedimentary microfacies controlled sand The plane distribution of the body and the physical properties of the sand body. Finally, it is pointed out that the near source zone, fault zone and sand body development zone are the favorable directions for next exploration.