学术
渗流方程的三维粗化算法
张光华[1,4] 刘福平[2,3] 杨长春[3]
[1]西南石油学院石油工程学院,成都610080 [2]北京印刷学院,北京102600 [3]中国科学院地质与地球物理研究所,北京100029 [4]胜利石油管理局井下三公司,滨洲256600
摘 要:
本文提出了地下流体渗流问题的三维解粗化算法，在粗网格内流体压强分布用直接解法求解三维渗流方程，用这些解计算粗网格的等效渗透率，在流体流速大的区域仍采用精细网格的计算方法．用所得等效渗透率计算了粗化网格的渗流场的压强分布，结果表明渗流方程的三维粗化解非常逼近采用精细网格的解，但计算的速度比采用精细网格提高了100多倍．[著者文摘]
文章出处:
《地球物理学进展》-2007年22卷5期 -1617-1620页
栏目信息:
文献标识码:
A
文章编号:
1004-2903（2007）05-1617-04
3D Upscaling method of heterogeneous fluid in porous media
ZHANG Guang-hua , LIU Fu-Ping, YANG Chang-chuna （ North-east China Institute of Petroleum, Chengdu 610080 ,China; Beijing Institute of Graphic Communication, Beijing 102600, China ; Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China ; Jinxia 3 Company, Shengli Petroleum Administrative Bureau, Binzhou 256600, China）
Abstract:
In this paper we have given a new upscaling method, i.e. if there are not resource or sink in the coarse grid blocks, the 3D solution of the fine grid blocks has been obtained by solving 3D fluid equations in porous media with direct method, and then the effective permeability of coarse grid blocks has been computed by the 3D solutions. We have also calculated the pressure distribution of the 3D heterogeneous fluid in porous media using the effective permeability of coarse grid blocks. The results show that the solutions of 3D upscaling method of 3D heterogeneous fluid in porous media are very approaching the solutions of adopting fine grid blocks, however, the computation speed of upscaling method is 100 times more than that adopting fine grid block method.[著者文摘]
Key words:
coarse grid blocks, fine grid blocks, effective permeability, numerical simulation.
基金资助:
北京市教育委员会科技发展计划面上项目（KM200411232012）、北京印刷学院引进人才科研资助项目和中国科学院知识创新重大项目KZCX-SW-18-04联合资助.
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