塔中Ⅰ号坡折带断裂系统空间展布及演化规律  

Spatial Distribution Characteristics and Evolution Regularity of Fault Systems in Tazhong No.1 Slope Break Belt

作　　者：雷克辉[1] 钟宁宁[1] 王冰洁[2] 周洪义[2] 

机构地区：[1]油气资源与探测国家重点实验室中国石油大学,北京102249 [2]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2013年第2期12-15,151,共4页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金重点项目“黔西-滇东煤层气成藏效应及其地质选择过程”(40730422)

摘　　要：利用相干数据体分析方法,结合可视化研究手段,对塔中Ⅰ号坡折带断裂系统的走向、空间展布特征进行了精细对比解释,并对断裂系统进行了分类及组合,厘定了断裂的发生期次。结果表明:塔中I号坡折带断裂系统根据规模大小及形成期次可划分三级。一级断裂形成于加里东期,早海西期形成的断裂为二级断裂,晚海西期形成的断裂为三级断裂。各级断裂对奥陶系的储层都有不同程度的影响,由于断裂活动的继承性,该区断裂系统对早期形成的碳酸盐岩储层的改造作用是不断叠加的。By using coherent body analysis and visualization,the strike direction and spatial distribution characteristics of the fault systems of Tazhong No.1 slope break belt are finely correlated and interpreted;the fault systems are classified and grouped;and the occurrence stages of the faults are clarified.The results show that the fault systems of Tazhong No.1 slope break belt can be divided into three levels according to fault scales and occurrence stages.Level 1 faults were formed in the Caledonian period;level 2 faults were formed in the early Hercynian;and level 3 faults were formed in the late Hercynian.The faults in different levels have varying influence on Ordovician reservoirs and the transformation action of the early-formed carbonate reservoirs resulted from those faults was continuously superimposed due to the inheritance of faults.

关 键 词：地震 断裂 相干体 塔中Ⅰ号坡折带 

分 类 号：TE121[石油与天然气工程—油气勘探]