基于数字岩心岩石电性数值模拟方法综述  

Numerical simulation methods of rock electrical properties based on digital cores:a review

作　　者：孔强夫 周灿灿[1] 张艳 李霞[1] 李潮流[1] 胡法龙[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]西南油气田蜀南气矿,泸州646000

出　　处：《地球物理学进展》2015年第2期718-724,共7页Progress in Geophysics

基　　金：国家科技重大专项"复杂储层油气测井解释理论方法与处理技术"(2011ZX05020-008);中国石油天然气集团公司科技管理部资助

摘　　要：以致密砂岩为代表的非常规油气储层,由于具有低孔低渗、孔隙结构复杂及岩心致密等特点导致岩石物理实验测量周期长、成本高、岩心驱替困难,难以定量研究微观参数对电阻率的影响.以X射线CT扫描为基础发展起来的数字岩心岩石物理属性模拟技术则弥补了这种不足.本文系统总结了基于数字岩心电性数值模拟基尔霍夫、随机游走、格子玻尔兹曼、有限元等方法的优缺点;列举了国内外学者的研究实例及取得的进展;探讨了目前电性数值模拟研究中存在的主要问题;同时指出了数字岩心电性数值模拟的发展方向.Tight oil and gas, as the representative unconventional reservoir, due to it has the characteristics of lowporosity and permeability, complex pore structure and tight core, which make the rock physics experimental cycle becoming long, high cost, displacement hard and difficult to study the microscopic parameters＇ influence on resistivity quantitatively. While the petrophysical properties of digital core developed form the X-ray CT scanning simulation technology can make up for this deficiency. We summarized various kinds of numerical simulation methods of rock electrical property and their advantages and disadvantages based on digital core; cited the research example and the progress of scholars both at home and abroad; discussed the main problems existed in the researches of the currentnumericalsimulation of electrical; we also pointed out the development direction of numerical simulation of electrical porperties of rock based on digital core.

关 键 词：数字岩心 岩石电性 基尔霍夫 随机游走 格子玻尔兹曼 有限元 

分 类 号：P631[天文地球—地质矿产勘探]