二维可压缩可混溶流体驱动问题的特征差分法  

CHARACTERISTIC DIFFERENCE METHODS FORTWO-PHASE FLOW IN POROUS MEDIA

作　　者：顾海明[1] 

机构地区：[1]青岛化工学院计算机系

出　　处：《计算数学》1996年第1期79-87,共9页Mathematica Numerica Sinica

基　　金：国家自然科学基金资

摘　　要：二维可压缩可混溶流体驱动问题的特征差分法顾海明（青岛化工学院计算机系）ＣＨＡＲＡＣＴＥＲＩＳＴＩＣＤＩＦＦＥＲＥＮＣＥＭＥＴＨＯＤＳＦＯＲＴＷＯ－ＰＨＡＳＥＦＬＯＷＩＮＰＯＲＯＵＳＭＥＤＩＡ￥ＧｕＨａｔ－ｉｎｉｎｇ（ＱｉｎｇｄａｏＩｎｓｔｉｔｕｔｅｏ...Abstract Two-phase, compressible flow in porous media is governed by a system of nonlinear panal differential equations. The pressure equation and the concentrationequation, in this paper, these are treated.The usual differential systems used to described two-component, compressible,miscible displacememant is given by [2, 4]wtiere p is the pressure, φ(x) the porisity, and u the dacy velocity of the fluid, c theconcentration of one of the basic components in the flow rate, positive where fluidis being injected. The fUnction c must be specified whenever injection is talkingplace and is the concentration of the same component as measured by c in theinjected fluid, where fluid is being produced, it will be assumed that c = c. Thedchsion, coefficient D arises from two sources, molecular diffusion, which is rathersmall for field-scale problems. Thus, D is a matrix, its form iswhere E represents projection along the velocity and is givern by

关 键 词：三次采油 可压缩流体 可混溶流体 驱动问题 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]