特种油气藏2017，Vol.24Issue(3)：76-80,5.DOI:10.3969/j.issn.1006-6535.2017.03.014
致密砂岩油藏注采开发流固耦合数值模拟
Fluid-solid Coupling Numerical Simulation of Injection-production Development of Tight Sandstone Reservoirs
摘要
Abstract
In order to determine the deformation pattern of pore-fracture medium during injection and production process of tight sandstone reservoirs and the effect of fluid-solid coupling on the production performance of tight sandstone reservoirs, a dynamic model is built for physical parameters of pore-fracture medium based on the deformation process between matrix and fractures during injection and production process of tight sandstone reservoirs.In combination with multiphase filtration model and geomechanical model, this model forms a fluid-solid coupling mathematical model, which is solved with iteration method.Fluid-solid coupling in the reservoir is investigated by numerical simulation of the injection-production process of a typical tight oil block in Middle Sichuan.The results show that during the injection-production process of tight sandstone reservoirs, matrix near injection wells swells, fractures open and physical properties improve significantly, while near production wells, matrix shrinks, fractures close and physical properties gradually decease, indicating the bad influence of fluid-solid coupling on productivity index.The research provides guidance for the efficient development of tight sandstone reservoirs.关键词
致密砂岩油藏/数值模拟/注采过程/流固耦合/迭代耦合求解Key words
tight sandstone reservoir/numerical simulation/injection-production process/fluid-solid coupling/coupling iteration solution分类
能源科技引用本文复制引用
房平亮,冉启全,鞠斌山,邵黎明,迟杰..致密砂岩油藏注采开发流固耦合数值模拟[J].特种油气藏,2017,24(3):76-80,5.基金项目
国家高技术研究发展计划("863"计划)项目"致密砂岩油气藏数值模拟技术与软件"(2013AA064902) （"863"计划）
