一种碳酸盐岩流体替换新方法  

A novel method of fluid substitution in carbonates

作　　者：熊晓军[1] 吕龑[1] 林凯[1] 贺振华[1] 杨晓[2] 

机构地区：[1]成都理工大学地球探测与信息技术教育部重点实验室,四川成都610059 [2]中石油川庆钻探工程有限公司地球物理勘探公司,四川成都610213

出　　处：《中国石油大学学报（自然科学版）》2012年第6期57-61,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(41274130)

摘　　要：针对碳酸盐岩的基质矿物类型非单一且孔隙结构复杂多变的特点,提出一种适用于碳酸盐岩的流体替换方法。以常规Gassmann方程为基础,采用流体因子分析的基质矿物体积模量反演方法和碳酸盐岩岩石物理模型的孔隙结构反演方法,得到岩石基质矿物的体积模量,并考察复杂孔隙结构的影响,实现碳酸盐岩的流体替换。岩石物理测试分析数据和实际测井资料的计算结果均证明了新方法的正确性和有效性。According to the complexity of carbonates： non-single types of matrix mineral and complex porosity structure, a new fluid substitution method for carbonates was proposed. Based on Gassmann equation, the method employs the technique of matrix mineral bulk modulus inversion based on fluid analysis and the technique of porosity structure inversion based on carbonate model, and effectively solves the difficulties of fluid substitution in carbonates ： the solution to the bulk modulus of matrix mineral and the effect of the complex porosity structure. The results based on rock physics testing data and practical log data show the accuracy and effectiveness of the new method.

关 键 词：碳酸盐岩 流体替换 GASSMANN方程 岩石物理 

分 类 号：P631[天文地球—地质矿产勘探]