Building-Block Model and Differential Scheme of Hydrocarbon Micro-Seepage Processe
详细信息
- 责任者：Li Meng (Research Institute of Petroleum Exploration and Development ; CNPC ; Beijing 100083 ; China) ; Sun Chunyan
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2012
- 卷期：34(5)
- 关键词：微渗漏 ; microseepage ; 油气化探 ; oil and gas geochemical prospecting
- 页码：p.582-586
- 图表：2 illus., 16 refs.
- 分类号：1500,1003
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
A kind of differential scheme,named bidirectional one-dimension splitting-correction scheme,is presented to solve the mass conservation equation,a sort of reaction-convection-diffusion equation,which is used to describe hydrocarbon micro-seepage processes.This scheme,integrating the features of Crank-Nicolson scheme,the features of alternative-direction-implicit scheme,and the features of predictor-corrector scheme,and being characterized by second order accuracy and unconditional stability,is an improved form of predictor-corrector scheme.Since each step of the scheme is formulated as tri-diagonal system,the scheme belongs to parallel algorithm.The numerical experiments are conducted to indicate that the scheme can be used to solve the hydrocarbon micro-seepage processes equation,and its solutions are consistent with the theoretical model of hydrocarbon micro seepage.
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