基于正演模拟的车排子地区石炭系裂缝响应特征研究  

Study on the response characteristics of carboniferous fractures in chepai region based on forward modeling

作　　者：于晓东 马永强[1] 王昱翔 谢玮 胡守旺 YU Xiaodong;MA Yongqiang;WANG yuxiang;XIE Wei;HU Shouwang(China petroleum geophysical research institute,Nanjing 211100,China)

机构地区：[1]中国石化石油物探技术研究院,南京211100

出　　处：《物探化探计算技术》2021年第2期186-193,共8页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：油气资源与勘探技术教育部重点实验室开放基金项目(k2018-1)。

摘　　要：车排子地区石炭系裂缝性油气藏富集,为了更好地预测裂缝发育区带,需要使用正演模拟的手段分析不同情况下裂缝地质体的地震响应特征。首先简述了交错网格有限差分数值模拟的原理,其次根据工区实际地震剖面和油藏剖面,建立裂缝模型对比裂缝发育区、裂缝中等发育区以及非裂缝发育区的响应特征,最后结合实际工区从地震剖面反射特征、地震多属性分析以及关联维属性分析对比了裂缝发育区和裂缝欠发育区的特征。In order to better detect the fracture zone,the seismic response characteristics of fractured geological bodies need to be analyzed by means of forward modeling under different conditions.Firstly,we review the principle of the staggered-mesh finite difference numerical simulation in this paper.Secondly model contrast cracks development zone were established according to the actual work area seismic section and reservoir section,fracture medium development zone and the response characteristics of the fracture development area as well.Finally the actual work area from seismic section the reflection characteristics,seismic multi-attribute analysis and comparing the correlation dimension attribute fracture development zone and fracture characteristics in low-development were combined.

关 键 词：裂缝 正演模拟 裂缝预测 

分 类 号：P631.4[天文地球—地质矿产勘探]