大庆石油地质与开发2018，Vol.37Issue(2)：34-39,6.DOI:10.19597/J.ISSN.1000-3754.201709038
徐家围子断陷徐中断裂特征及形成机制
CHARACTERISTICS AND GENERATING MECHANISM OF XUZHONG FAULT IN XUJIAWEIZI FAULT DEPRESSION
摘要
Abstract
Deep natural gas exploration in Xujiaweizi Fault Depression shows that the volcanic crater is not only developed in Xuzhong Fault,but also the natural gas is accumulated in the belt way.In order to make clear of the generating mechanism of Xuzhong Fault and its relationships with the sedimentary and volcanic rocks,integrating with the regional structure background and 3D seismic data,the fault was re-characterized,and moreover the fault evolution characteristics and the non-late-strike-slip genesis were explored.The study shows that Xuzhong Fault is the typical transformed structure,the non-accordance of Xuxi and Songxi two depression-controlled fault deformations were adjusted During the fault stage,they are syndepositional sag-controlling faults;Xuzhong Fault responded intensely in the course of the compressional deformation at the deposition end periods of Shahezi Formation and the 1st member of Yingcheng Formation,and furthermore the structure inversion occurred then,the normal structural belt formed along the Xuzhong Fault,the crater was preferably developed on the belts;Xuzhong Fault was developed in the whole depression period and responsed at various deforming stage and finally became long-period active fault,the structural deforming belt controls the extensions of Shahezi Formation fan-bodies and drainage system.关键词
徐家围子断陷/变换构造/伸展断裂/后期走滑/徐中断裂Key words
Xujiaweizi Fault Depression/transform structure/extension fault/late strike slip/Xuzhong Fault分类
能源科技引用本文复制引用
李钰玮,陈均亮,张莹,田桂荣..徐家围子断陷徐中断裂特征及形成机制[J].大庆石油地质与开发,2018,37(2):34-39,6.基金项目
中国石油天然气股份有限公司重大科技专项“大庆油气持续有效发展关键技术研究与应用”(2016E-02). （2016E-02）
