辽河坳陷牛心坨洼陷断裂构造与油气研究

牛心坨洼陷是辽河坳陷西部凹陷最先裂陷的地区，沙四段发育最全。断裂构造研究表明：始新世、渐新世晚期构造旋回的抬升并伴随着右旋走滑，是形成牛心坨洼陷东西两侧逆断层的主要原因，发育一系列挤压、走滑、伸展断裂，形成挤压背斜构造、花状构造、断裂鼻状构造等类型各异的构造样式。断裂对烃源岩、储层的分布以及油气输导体系起控制作用，不同断裂带也控制着不同含油气区带的发育特征及其含油气性，因此研究不同断裂带发育特征对优选和评价有利含油气区带和圈闭具有重要意义。

Research on Faults and Oil and Gas in Niuxintuo Sag of Liaohe Depression

Niuxintuo Sag is the first rifting sag in the west of Liaohe Depression,of which Es4 is the most complete.Faults research shows that the uplift and dextral strike-slip of structural cycles of Eocene and Late Oligocene leads to the formation of reverse faults on the east and west sides of Niuxintuo Sag.A series of extrusion,strike-slip,and extensional faults come into being,different types of structural styles are formed,such as extrusion structure,flower structure,and nasal fracture structure.Fracture deter...