摘要
断裂是东营凹陷"红层"层系最主要的构造形式,在断裂活动性分析的基础上,依据其发育的阶段性,可将影响"红层"层系的断裂划分为Ek—Es4下沉积前、Ek—Es4下沉积期和Ek—Es4下沉积后三大断裂体系,"红层"层系沉积期的断裂体系为对"红层"沉积前NW向断裂体系的继承和改造,其发育特征控制了"红层"层系沉积期的原始盆地格局。"红层"层系沉积后以NEE向断裂是为主的断裂体系所造成的差异沉降隆升与断块掀斜运动,其决定了"红层"层系的剥蚀与改造。分析断裂体系发育特征对于了解"红层"层系油气藏分布具有重要意义。
Fault is the main structural form of red-bedding series （Ek- Lower Es4） in Dongying Depression. Based on the fault activity analysis and the development phase, the faults affecting the red-bedding series can be divided into three systems： predeposition, deposition and post-deposition of Ek-Lower Es4. The fault systems formed during the red-bedding series deposition display as the succession and reformation of the former NW fracture system, and its development characteristics control the EkLower Es4 prototype basin. After red-bedding series deposit, the differential subsidence-uplift and block-tilting movement caused by NEE fracture system decide the layer denudation and reformation. The analysis on development characteristics of fault system has an important meaning for realizing the distribution of red-bedding reservoir in Dongying Depression.
出处
《断块油气田》
CAS
北大核心
2011年第1期62-65,共4页
Fault-Block Oil & Gas Field
关键词
断裂体系
红层层系
东营凹陷
fault system
red-bedding series
Dongying Depression
