固体颗粒型调剖剂调整注水剖面的数值模拟

Numerical Simulation of Waterflooding Process Modified by Solid Particles and Its Application

针对调整注水剖面实践中固体颗粒型调剖剂使用较多这一实际，开展了调剖数值模拟研究。根据调剖机理．建立了描述调剖过程的数学模型，并采用有限差分方求解。提出了以调剖后有效期内获得最大纯利润为目标的目标函数优选调剖施工参数（如调剖剂用量）方法．据此编制的调剖模拟软件，可用于模拟水驱、调剖，还可用于调剖机理研究、矿场生产历史拟合、调剖施工参数优选和效果预测。该软件在ＷＣ油田调剖中的试用情况表明．效果较好。

According to the fact that profile modifier of solid particles is always used in the waterflooding profile modification, a numerical simulation is carried out. Based on the mechamism,a mathematical model for describing the profile modification by profile modifier of solid particles is developed. The finite difference method is used to solve the model. The approach, in which objective function is that the obtainable net profit within the period of validity after profile modification is maximum, is presented to optimize the treatment parameters such as the volume of profile modifier injection. The simulator based on the model can be used to simulate waterflooding and injection well flow profile modification, to match production history, to study the mechanism, to optimize the treatment parameters and to predict the results of profile modification. The applications of the simulator in the profile modification of WC oil field are introduced.