【摘要】 阆中—南部地区大二亚段储层具有低孔低渗以及非均质性强的特点,为了搞清楚本区储层裂缝发育带、有利储层分布状况,利用岩心、录井、测井等资料,对裂缝基本特征进行描述,分析该区构造演化,综合利用构造曲率、地震属性、相干体属性以及古构造应力场二维数值模拟对大二亚段裂缝进行综合预测,并进行权重分析,最终确定出裂缝的发育分布带。研究认为:大二亚段裂缝发育带主要分布于石龙场高点地区及其东北部大断层周围、金星场地区和柏垭鼻状构造高部位。更多还原

【Abstract】 In Langzhong-Nanbu area of Sichuan Basin,the Daer Group reservoir is characterized by low porosity,low permeability and strong heterogeneity.In this study,the fracture features are described and the structural evolution is analyzed based on some data obtained from core analysis,mud logging and well logging.Moreover,some fractures in Daer Group can be predicted by structural curvature,seismic attribute,coherence attribute and 2D numerical simulation of palaeo-structure stress field,and a weight analysis is carried out.At last,fracture-developed belt is determined.It is considered that the fracture-developed belt of Daer Group is mainly in the Shilongchang High zone or around large faults of northeast zone,the Jinxingchang area and the structural high of Baiya nosed structure.更多还原