二元复合驱数值模拟隐格式和应用  

An implicit scheme for a numerical simulation of binary combination flooding and application

作　　者：杨耀忠[1,2] 鲁统超[3] 戴涛[4] 席开华[3] 于金彪[4] 任永强[3] 程爱杰[3] 

机构地区：[1]中国石化胜利油田分公司开发处,山东东营257015 [2]中国地质大学(北京)能源学院,北京100083 [3]山东大学数学学院,山东济南250100 [4]中国石化胜利油田地质科学研究院,山东东营257015

出　　处：《山东大学学报（理学版）》2010年第8期19-26,35,共9页Journal of Shandong University(Natural Science)

基　　金：国家科技重大专项资助课题(2008ZX05011-004)

摘　　要：研究化学采油中聚合物-表面活性剂二元复合驱数值模拟问题。数学模型包含压力方程、组分浓度方程以及基于水相组分浓度方程形成的水相饱和度方程。提出了一种隐式顺序解法。先隐式求解压力方程,再隐式求解水相饱和度方程,最后隐式求解组分浓度方程;通过聚合物驱和二元复合驱模拟,对该隐式算法与传统的隐式压力-显式浓度算法进行了比较。该隐式算法稳定性好,提高计算效率大约30%。The problem of incompressible immiscible two-phase displacement with multi-components in porous media,which arises from chemical flooding in oil recovery,is considered.A mathematical model including a pressure equation,concentration equation for components and saturation equation for the water phase arising from conservation of components in water phase is proved.A sequential implicit difference scheme is established.Some typical simulation experiments are implemented for polymer-surfactant flooding.The proposed implicit method is more stable and efficient than the traditional methods of implicit-pressure-explicit-concentration.

关 键 词：油藏模拟 显格式 隐格式 矿场模拟试验 

分 类 号：TE319[石油与天然气工程—油气田开发工程]