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| 气煤孔隙度与Thomsen各向异性参数高阶交错网格数值模拟 | |
| 引用本文： | 李东会,董守华,赵小翠,鲁磊,张聪,李淑杰.气煤孔隙度与Thomsen各向异性参数高阶交错网格数值模拟[J].物探与化探,2011,35(6):855-859. |
| 作者姓名： | 李东会 董守华 赵小翠 鲁磊 张聪 李淑杰 |
| 作者单位： | 1. 中国矿业大学资源与地球科学学院,江苏徐州,221008 2. 中国矿业大学安全工程学院,江苏徐州,221008 3. 华北油田煤层气分公司,山西晋城,048000 4. 长春理工大学经济管理学院,吉林长春,130022 |
| 基金项目： | 国家重点基础研究发展计划(973)项目，国家科技重大专项目 |
| 摘 要： | 对气煤煤样孔隙率测试的基础上,讨论了各向异性系数与孔隙率的关系,表明各向异性的大小与孔隙率之间有一定的关系。应用高阶交错网格差分算法,对一阶速度-应力弹性波方程进行模拟,分析了其稳定性和边界条件。通过对Thomsen各向异性参数的模拟表明,主要控制的是P波的各向异性强弱,δ主要控制水平垂直正交方向上的各向异性强弱。对煤田各向异性研究具有重要意义。 |
| 关 键 词： | 各向异性 有限差分 正演 孔隙度 |
NUMERICAL SIMULATION WITH STAGGERED DRID HIGH-ORDER DIFFERENCE METHOD FOR POROSITY AND THOMSEN ANISOTROPIC COEFFICIENTS OF GAS COAL |
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| LI Dong-hui,DONG Shou-hua,ZHAO Xiao-cui,LU Lei,ZHANG-cong,LI Shu-jie.NUMERICAL SIMULATION WITH STAGGERED DRID HIGH-ORDER DIFFERENCE METHOD FOR POROSITY AND THOMSEN ANISOTROPIC COEFFICIENTS OF GAS COAL[J].Geophysical and Geochemical Exploration,2011,35(6):855-859. | |
| Authors: | LI Dong-hui DONG Shou-hua ZHAO Xiao-cui LU Lei ZHANG-cong LI Shu-jie |
| Institution: | LI Dong-hui1,DONG Shou-hua1,ZHAO Xiao-cui1,LU Lei2,ZHANG-cong3,LI Shu-jie4(1.School of Resources and Geoscience,CUMT,Xuzhou 221008,China,2.Faculty of Safety Engineering,3.North China Oilfield CBM Branch Company,Jincheng 048000,4.School of Economics and Management,Changchun University of Science and Technology,Changchun 130022,China) |
| Abstract: | The porosity of gas coal samples was tested.On such a basis,this paper deals with the relationship between the elastic anisotropic coefficients and the porosity of the gas coal samples,and the result shows that the value of anisotropic coefficient is to a certain extent related to porosity.This paper simulates the one-order stress-velocity equation with the staggered grid high-order difference method,and analyses the stability and boundary conditions.The simulations of Thomsen show that,in the wave simulati... |
| Keywords: | anisotropy finite difference gas coal porosity |
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