【摘要】 根据覆盖整个临南洼陷的高精度三维地震资料以及翔实的钻井资料,以构造解析和盆地动力学的理论和方法为指导,对临南洼陷的边界断层夏口断层和临邑断层的构造形态及其伴生次级断层的组合特征进行了详尽的研究,确定了自沙河街组三段沉积以来,断裂活动为具走滑性质的伸展作用;结合区域构造背景分析,认为临南洼陷为一兰聊右旋走滑断层控制的具走滑性质的伸展型盆地。在此基础上,综合该洼陷中浅层显著的低压特征以及油气藏的分布规律,表明盆地具走滑性质的伸展构造为低压流体提供了运移通道和成藏动力,并由此控制了深部油气在浅部的运聚成藏。更多还原

【Abstract】 It was based on the lastest high-resolution 3D seismic data covered the whole Linnan Depression and well drilling data in detail,by using the theories and methods of structural analysis and basin dynamics,the structural shape and assemblage characters of the associated secondary faults of Xiakou and Linyi Faults of the boundary faults in Linnan Depression were studied in detail,by studying in detail the geometry of main faults and their secondary faults assemblage characteristics,the fault activities since Es3 sediment were the strike-slip expansion,in combination with regional tectonic analysis,it was considered that the Linnan Depression was redefined as an expanding basin controlled by Lankao-Liaocheng right-hand fault .On this basis,the characters of obvious low pressure in shallow layers and the distribution rule of the hydrocarbon reservoir were integrated .The result shows that the strike-slip expansion structure provides the migration pathways and reservoir-forming dynamics for the low-pressure liquid ,by which the deep hydrocarbon migration and accumulation is controlled in the shallow layers.更多还原