板桥-北大港构造带断裂活动特征及演化规律  

ACTIVE CHARACTERISTICS AND EVOLUTION LAWS OF THE FAULTS IN BANQIAO-NORTH DAGANG STRUCTURAL BELT

作　　者：陈清华[1] 杨超[1] 王秀玲 

机构地区：[1]中国石油大学地球资源与信息学院,山东东营257061 [2]中海油深圳分公司广州技术部,广东广州510250

出　　处：《大庆石油地质与开发》2010年第1期1-5,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家自然科学基金项目（4997203）资助.

摘　　要：断层活动是板桥一北大港构造带构造活动的主要表现形式，断裂与生油凹陷的发育、储集相带的分布以及油气圈闭的形成密切相关，一些巨大的油气聚集带自身就是一个二级构造带或断裂带。大多数圈闭都与断层的形成与发展有着密切关系，一个油气藏的形成，其运移、聚集和保存条件在一定程度上是受断层控制的。因此，应用断层活动速率法对构造带新生代的断裂活动特征进行了研究。结果表明，构造带断层活动具有明显的规律性：垂向上具有结束时间早、阶段性特征；平面上具有分区分带性。依据主干断裂活动速率变化趋势，结合区域构造演化背景认为板桥一北大港构造带断裂演化经历5个阶段。Fault activities in Banqiao-North Dagang structural belt are the main representative for tectonic activities in this area. Faults relate closely to the ＇development of oil-bearing sags, the distribution of sedimentary facies and the formation of oil/gas-bearing traps. For instance, some huge oil/gas accumulation belt belong actually to a sec- ond-level structural belt or fault belt and most traps are significantly influenced by the generation and development of faults. During the generation process of an oil/gas reservoir, the oil/gas migration, accumulation and storage are considerably controlled by faults. For the reasons mentioned above, studies on Cenozoic fault activities in the struc- tural belt have been conducted by fault activities rate method and results show that fault activities in the structural belt have such obvious regularity： the activities end early and are episodic vertically; while horizontally, they are sectionalized and zoned. According to the velocity variation tendency of the major fault activities and combining with the background of regional structural evolution, it is concluded that the fault development and evolution in Banqiao-North Dagang structural belt have experienced 5 stages.

关 键 词：断裂活动 阶段性 分区性 演化 

分 类 号：P542.3[天文地球—构造地质学]