泡沫交替注入参数优化设计

Optimizing Design of Foam Alternating Injection Parameters

为了使注入的泡沫能均匀分散,充分发挥调驱作用,选用发泡剂OA进行实验,研究最优气液比、段塞大小和注入速度。同时研究泡沫在不同地层压力下的封堵特性,指出地层压力越高,泡沫封堵能力越差。最后分析现场需要注入的产生泡沫的气液段塞,并推导出其计算公式。

For the purpose of foam even distribution, fully display theaction of profile control and displacement, select foaming agent OA to study best gas/liquid ratio, slug size, and injection rate. At the same time, research the sealing characteristics of different formation pressure ,pointed out that higher formation pressure ,worse foam sealing characteristics. Finally evaluate gas-liquid slug size field needed, and develop design formula.