摘要
以达西渗流方程为基础,综合考虑酸液在支撑裂缝中流动和沿裂缝壁面的滤失影响,引入储层伤害系数,建立了一套适用于砂岩油藏压裂投产井酸化模拟的简化模型。采用有限差分法对模型进行求解,实现了人工裂缝影响的酸化实时动态模拟,就影响酸作用范围的酸液粘度、施工排量和施工压力三个因素进行敏感性分析,对指导现场酸化施工和酸化方案优化设计具有重要意义。
Paper based on Darcy flow equation, then combined with acid flowing in fracture and leaking off from fracture,and created formation damage factor, last a simple model to sim- ulating acid in sand reservoir fracture completion well is established.Paper used finite dif- ference method to solve the model; and achieved acid real time dynamic simulation,last ana- lyzed three sensible factors affecting acid decisive range, including acid viscosity,fluid vol- ume and pressure.The conclusion has high value to direct acid iob and optimize acid design.
出处
《石油化工应用》
CAS
2015年第9期55-59,64,共6页
Petrochemical Industry Application
关键词
砂岩油藏
人工裂缝
酸化
动态模拟
简化模型
sand reservoir
hydraulic fracture
acid
dynamic simulation
simple model
