九龙山构造珍珠冲砾岩裂缝地震预测研究

摘要

fracture system is the major storage space and percolation path of Zhenzhuchong conglomerate reservoir in the Jiulongshan structure. Study of characteristics and distribution of fractures by imaging logging, core analysis and seismic data processing indicates that: there are high angle fracture, low angle fracture, horizontal fracture, filled fracture and induced fracture in FIM in the Zhenzhuchong conglomerate reservoir and core fractures may be divided into trans-gravel fracture, gravel-edge fracture and intra-gravel fracture. NE-, NW-trending and latitudinal micro fractures or fractures are mainly developed in the studied area, the NE-trending micro fractures or fractures are mainly developed in the northwest, southeast and higher parts of the anticline, the NW-trending micro fractures or fractures are mainly developed in the southwest; the effective fractures include NE-, NW-trending and latitudinal fractures.%通过成像测井分析、岩心分析、地震资料处理，对珍珠冲砾岩段裂缝特征、裂缝分布进行研究表明：九龙山构造珍珠冲砾岩段裂缝成像测井上表现为高角度裂缝、低角度裂缝、水平裂缝，充填裂缝和诱导裂缝，岩心裂缝则分为穿砾缝、砾内缝和砾缘缝三种；研究区主要发育北东-南西、北西-南东向、东西向的微断裂/裂缝，北东向的微断裂/裂缝主要分布在工区西北部、东南部及背斜构造较高部位，北西向微断裂/裂缝主要分布在构造的西南部；有效裂缝的方位为北东、北西和东西。