应用随机介质正演模拟刻画深水区台缘礁碳酸盐岩储层  

Sculpturing platform-edge reef carbonate reservoirs in deep-water with random media forward modeling

作　　者：马灵伟[1,2] 顾汉明[1,2] 赵迎月[3] 陈殿远 赵小鹏 

机构地区：[1]中国地质大学(武汉)构造与油气资源教育部重点实验室,湖北武汉430074 [2]中国地质大学(武汉)地球物理与空间信息学院,湖北武汉430074 [3]中化石油勘探开发有限公司,北京100031 [4]中海油有限公司湛江分公司,广东湛江524057

出　　处：《石油地球物理勘探》2013年第4期583-590,676+502,共8页Oil Geophysical Prospecting

基　　金：国家重大科技专项子课题"南海北部深水区储层地球物理特征及储层预测(2008ZX05025-03A-04)"资助

摘　　要：南海A区块深水区钻井少,储层刻画难度大。本文基于深水区地质沉积相分析成果,利用深水区地震资料建立符合实际条件的地层结构模型,结合波阻抗反演结果及地震属性特征,建立深水台缘礁碳酸盐岩储层的结构模型。在此基础上,运用随机建模方法对台缘礁碳酸盐岩储层内部的孔洞、裂缝进行精细刻画。运用"交"、"并"算法将储层结构单元与随机介质模型结合,建立符合地下实际的深水台缘礁碳酸盐岩储层地震地质随机介质模型,应用正演模拟、常规处理和相似性分析技术,获得与实际地层最接近的台缘礁碳酸盐岩储层结构和参数模型。Sculpturing reservoirs in Block A of deep water in South China Sea is quite difficult due to lack of wells.In this paper,according to geological sedimentary facies in deep water,we build a realistic deep-water strata model based on seismic data,and then build platform-edge reef carbonate reservoir models based on impedance inversion and seismic attribute characteristics.After that,we sculpture crevices and clefts inside platform-edge reef carbonate reservoirs using random model-building method.Taking advantage of 'intersection' and 'concatenation' operation,we establish seismic geological random models close to subterranean platform-edge reef carbonate reservoirs.With combination of forward simulation,conventional processing and similarity analysis,we have obtained structure and model parameters of platform-edge reef reservoirs which are very close to the reality.

关 键 词：随机介质 碳酸盐岩储层 储层建模 正演模拟 储层精细刻画 

分 类 号：P631[天文地球—地质矿产勘探]