凝胶泡沫数值模拟方法

Numerical simulation of gelled foam

 王硕亮¹ 于希南² 桑国强³ 李亮⁴ 王建海⁴ 张媛¹

中国地质大学（北京）能源学院，北京 100083 重庆科技学院，重庆 401331 中国石油勘探开发研究院提高石油采收率国家重点实验室，北京 100083 中国石化西北油田分公司石油工程技术研究院，新疆 乌鲁木齐 830011）

 针对目前缺少凝胶泡沫驱数值模拟方法的问题，在普通泡沫数值模拟方法的基础上，考虑到凝胶泡沫的物理化学特性，将组分数值模拟器的组分数从5增加到9。通过组分间化学反应方程式和反应速率的控制，描述了凝胶泡沫生成、破灭等机理。通过对流体黏度和相对渗透率的修正，描述了凝胶泡沫增黏、封堵等机理。根据室内实验结果，对凝胶泡沫组分数值模拟器中各组分物化参数进行赋值，并提出了考虑凝胶泡沫生成、凝胶泡沫破灭反应的组分数值模拟器的求解方法。利用建立的凝胶泡沫数值模拟器对室内实验结果进行拟合，达到了较高的拟合精度，凝胶泡沫数值模拟方法准确可靠。

Considering the lack of three dimensional numerical simulation method that is used for gelled foam deep profile modification, based on the numerical simulation method and the characteristics of common foam, the number of components is increased from 5 to 9 in compositional model. The mechanism of gelled foam generation and gelled foam rupture is described by the control of chemical reaction and reaction rate. The mechanism of improving viscosity and blocking in the gelled foam model is described by viscosity amendment and relative permeability amendment. The physical chemical parameters in the component numerical simulation model are defined according to the experimental results, and a numerical method of solving gelled foam component simulation model is proposed in this paper considering gelled foam generation and gelled foam rupture. The comparison between numerical results and experimental data show that the numerical model can simulate gelled foam accurately and precisely.

10.6056/dkyqt201606026