辽河冷家地区构造特征及油气分布规律

Structural Features and Oil and Gas Distribution Rule in Lengjia Region in Liaohe Basin

罗　群

Luo Qun

大庆石油学院

Daqing Petroleum Institute , Hei Longjiang 151400 , P. R. China

由于陈家逆断层(F7) 的分隔,冷家地区形成了东、西两套构造与沉积特征明显不同的地质区域,导致了两者不同的油气藏类型、分布规律和成藏条件。本文从区域构造格架入手,系统研究了研究区的构造特征,划分出深层、中层、浅层和冷东四套断裂系统,建立了F7 东西两侧的油气分布模式,并总结出8 种油气成藏机理。

Because of the separation of Chenjia reverse fault ( F1 ) , two obviously different geological zones instructure and depositional features in Lengjia region are produced. The fault leads to great distinct of the two zones in reservoir types , distribution rule and hydrocarbon accumulating conditions. Beginning with regional structure framework , this paper studies the structural features of Lengjia region , and four fractured systems , deep , middle , shallow zone and Lendong zone are divided. This paper also set s up the hydrocarbon distribution patterns in the east and west part of F1 fault ,and eight kinds of hydrocarbon accumulating mechanisms are summaried.