裂缝性油藏固相颗粒封堵体系实验研究

Experimental Study on Solid Particle Plugging System in Fractured Reservoir

摘要: 为解决裂缝性油藏常规堵调有效期短、易污染油层问题，提出了对裂缝性油藏窜流通道深部充填长效封堵技术思路。以石英砂为基材添加无机填充颗粒、双控暂堵颗粒、自悬浮砂、体膨颗粒等材料形成紧密堆积，提高控水能力，调整充填体封堵能力，降低堆积体的渗透率，达到堵水目的。

Abstract: To solve the problem that the conventional plugging period of a fractured reservoir is short and easy to pollute the reservoir, the idea of deep filling and long-term plugging technology for the channeling path of a fractured reservoir is put forward. With quartz sand as the base material, inorganic filling particles, double-controlled temporary blocking particles, self-suspended sand, bulk expansion particles, and other materials are added to form tight packing, which can improve the water control ability, adjust the blocking ability of backfill, reduce the permeability of accumulation body, and achieve the purpose of water plugging.