东营凹陷前古近系断裂活动性分析  

Activity analysis of prepaleogene faults in Dongying Sag

作　　者：岳颖 罗荣涛[1] 柴浩栋[1] Yue Ying;Luo Rongtao;Chai Haodong(Geophysical Exploration Research Institute of Shengli Oilfield Company,SINOPEC,Dongying 257022)

机构地区：[1]中国石化胜利油田分公司物探研究院,山东东营257022

出　　处：《石化技术》2022年第8期109-111,共3页Petrochemical Industry Technology

摘　　要：在被动构造发育程度的表征中,首先利用断层生长指数、断层落差、断层活动速率等方法表征断裂的发育强度,从而确定主动断裂与被动断裂,进一步研究主动断裂对构造单元演化的控制和影响作用。前古近系的构造演化规律和周边断层发育及演化具有密切的关联,因而对周边的主要断层进行分析。综合对东营凹陷及其周边主要断裂的断层活动速率统计结果表明,东营凹陷及其周边的断层活动时期差别较大,陈南断裂在中生代、新生代的活动强度最大,结合东营凹陷区域构造演化过程、沉积体系发育等特征,明确陈南断裂为东营凹陷前古近纪发育的主控断裂。In the characterization of the development degree of passive structures.Firstly,some methods such as the fault growth index and fault activity rate are used to characterize the development intensity of faults,so as to determine the active faults and passive faults,and further study the control and influence of active faults on the evolution of structural units.The structural evolution law of pre Paleogene is closely related to the development and evolution of surrounding faults,so the main faults around are analyzed.The structural evolution law of pre Paleogene is closely related to the development and evolution of surrounding faults,so the main faults around are analyzed.The statistical results of fault activity rate of Dongying sag and its surrounding main faults show that the fault activity periods of Dongying sag and its surrounding areas are quite different,and the activity intensity of chennan fault is the largest in Mesozoic and Cenozoic.Combined with the characteristics of regional tectonic evolution process and sedimentary system development of Dongying sag,it is clear that chennan fault is the main control fault developed in pre Paleogene of Dongying sag.

关 键 词：断裂活动性 生长指数 前古近系 主控断裂 

分 类 号：P618.13[天文地球—矿床学]