置胶成坝调剖技术的实验研究

注入水容易沿优势区域不均匀流动,横向上造成纺锤形指进。置胶成坝调剖技术能够实现凝胶等堵剂的深部放置,有效解决了同层水调剖难度大的问题。置胶成坝调剖技术使注入水在渗流优势区域的前进方向发生改变,波及到难动用的储层,有效提高了水驱采收率;通过可视平面填砂模型实验数据得到结论:早期水驱石油开采量大,采出水少;从0.5 PV开始,采出油的含水率在60%以上;采用置胶成坝调剖技术后,单胶坝和双胶坝提高了23%左右的采收率,同时双胶坝节约了13%的能耗,具有更好的经济效益。

Experimental Study of Profile Control with Gel-dam

Injected water flow easily along the advantage of uneven region, causing the lateral fusiform fingering. Gel dam profile is agel blocking technology used to achieve deep placement agent, and it can solve effectively to profile the same layer with difficult problems. This technology change water flow in the forward direction of the region which has sepage advantage to improve the water flooding recovery. Through the visual plane sandpack experiment: Early waterflood can take out a lot of oil; From 0.5PV, recovery of oil in water content is above 60%;After using the technology of Profile Control with Gel-dam, the single and double Gel-dam can improve the recovery of about 23%, and double Gel-dam can save the 13% of total water , so this technology has better economic benefits.