煤岩双相介质弹性波场数值模拟  

Numerical simulation of elastic wave field in the two phase-medium of coal and rocks

作　　者：于师建[1] 黄琪嵩[1] 田禹[1] 

机构地区：[1]山东科技大学矿山灾害预防控制实验室,青岛266510

出　　处：《黑龙江大学自然科学学报》2011年第3期295-299,共5页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(50974081;50774051)

摘　　要：为了研究含水煤岩储集层的流体饱和多孔双相介质弹性波波场特性,用Boit双相介质数学模型描述煤岩介质。应用二阶中心有限差分方法对煤岩双相介质模型的弹性波场进行数值模拟,模拟结果显示了孔隙率的变化与弹性波场响应的关系,对了解地下含水煤岩介质的构造特征以及孔隙特性具有现实意义和理论价值。In order to research the characteristics of fluid saturated porous two-phase medium of water-containing coal and rock,Boit two-phase medium mathematical model is used to describe the coal or rock medium.The second-order center finite difference method is applied to simulate elastic wave field of the coal or rock two-phase medium model is applied.Simulation results show the relationship between the porosity changes and elastic wave field.It is a realistic meaning and theoretical value to understand structural attitude and the pore properties of the underground coal and rocks medium.

关 键 词：Boit双相介质 弹性波 数值模拟 孔隙率 

分 类 号：P315[天文地球—地震学]