储层裂缝随机建模方法研究进展  

Some progress in reservoir fracture stochastic modeling research

作　　者：董少群 曾联波[1,2] Xu Chaoshui 曹菡 王圣娇 吕文雅[1,2] 

机构地区：[1]中国石油大学(北京)地球科学学院,北京102249 [2]油气资源与探测国家重点实验室,北京102249 [3]阿德莱德大学土木、环境和采矿工程学院,澳大利亚阿德莱德5005 [4]中国科学院对地观测与数字地球科学中心,北京100094

出　　处：《石油地球物理勘探》2018年第3期625-641,共17页Oil Geophysical Prospecting

基　　金：国家科技重大专项(2016ZX05003); 石油化工联合基金项目(U1663203)联合资助

摘　　要：作为研究裂缝空间展布的有效手段,储层裂缝建模可分为确定性建模与随机建模两大类,且随机建模方式应用广泛。储层裂缝随机建模包括基于空间剖分的裂缝建模、离散裂缝网络建模、基于变差函数的裂缝建模、基于多点地质统计学的裂缝建模和基于分形特征迭代的裂缝建模等五类。本文结合实例详细介绍了五类随机建模方法的原理、特点及其适用性。第一类方法适用于简单裂缝系统建模,第二、三、四类方法适用于大部分裂缝系统建模,第五类方法适用于分形特征明显的裂缝系统(如压裂诱导缝)建模。同时本文系统分析了各类方法的优缺点,并展望了储层裂缝随机建模方法的发展趋势。Reservoir fracture modelings are important ways to research the reservoir fracture system distribution.These modelings can be divided into two kinds:deterministic modelings and stochastic modelings.In the most used stochastic modelings,five modelings can be found,namely space-subdivision fracture modeling,discrete-fracture network modeling,fracture modeling based on variogram,fracture modeling based on multiple-point geostatistics,and fracture modeling based on fractal iteration.This paper introduces the principle,characteristics and applicability of these five fracture modelings in detail.The first one is suitable for simple fracture systems.The second,third and fourth ones are suitable for most fracture systems.The fifth one is suitable for simple fracture systems with obvious fractal characteristics,such as hydraulic induced fracture.In addition,the advantages and shortcomings of these methods are systematically analyzed and the development trend of fracture stochastic modeling methods is summarized.

关 键 词：裂缝 随机建模 空间剖分 离散裂缝网络 变差函数 多点地质统计学 分形 

分 类 号：P631[天文地球—地质矿产勘探]