辽西地区区域裂缝发育规律及辽河油田西部洼陷低潜山带储层裂缝特征

通过总结辽西区域性裂缝特征、类型、分布规律，确定裂缝的主要形成时期，并对裂缝进行规模划分，并以此为基础分析不同岩性裂缝的发育规律，总结不同级别裂缝的充填、连通特征等。通过与辽河油田西部洼陷低潜山带储层裂缝特征进行对比，分析储层裂缝发育的规律性。研究认为，辽河油田低潜山带储层裂缝发育规律与辽西地区区域裂缝发育规律相似，且该低潜山带储层以碳酸盐岩储层最为有利。结合现今应力场分析，储层裂缝以ＮＥＥ向的开

The Distribution Rules of Regional Macro-Fractures Development in the West Region of Liaoning Province and the Fracture Features of Burial Hill Reservoir Bed in West Depression in Liaohe Oilfield

The distribution rules and features of regional macro-fracture were summarized in the west region of Liaoning province and the burial hill reservoir bed of Liaohe Oilfield. The results of this research show that the fractures are mainly shear joints and can be divided into four grades according its lengths, and the length ranges changed from kinds of rocks. The filler, filling times and connectivity also differen from grades. The stretch of macro-fracture are mainly at the directions of NEE and NNW in Liaoxi region and burial hill reservoir bed. The macro-fracture in NEE direction are unclosed, and have a main effect on the exploitation of the burial hill reservoirs.