一种低密度稠油热采复合封窜剂的研制与应用

发布时间：2018-03-12 11:18

  本文选题：低密度　切入点：封窜剂　出处：《石油钻采工艺》2017年03期 　论文类型：期刊论文

【摘要】：针对常规热采封窜剂在低压层或亏空层容易漏失、厚油层封窜效果差等问题,进行了密度小于1.1 g/cm3的低密度复合封窜剂研究。考察了水灰比、温度对封窜剂性能的影响,并对封窜剂耐高温、抗压、岩心封堵、耐蒸汽冲刷等性能进行了评价。实验结果表明:该低密度复合封窜剂在300℃时体积收缩率为8.47%,岩心封堵率大于99%,岩心突破压力大于0.13MPa/cm,且封窜剂耐蒸汽冲刷性能强。现场试验7井组,汽窜通道封堵率94.4%,表明该技术在稠油油藏热采开发中后期具有广阔的应用前景。
[Abstract]:In order to solve the problems such as easy leakage of conventional heat recovery channeling sealing agent in low pressure layer or deficit layer and poor channeling sealing effect in thick reservoir, the low density composite channeling sealing agent with density less than 1.1 g / cm ~ 3 was studied. The effects of water / cement ratio and temperature on the performance of channeling sealing agent were investigated. And to the channeling agent resistance to high temperature, pressure, core plugging, The experimental results show that the volume shrinkage of the low density composite channeling sealing agent is 8.47 at 300 鈩，

本文编号：1601322