摘要
塔河油田碳酸盐岩储层酸压要求酸液具有耐高温、延缓反应速率和降低滤失速率的性能,为此需要研发一种新型长效酸液体系。通过优选聚合物、破胶剂和助排剂,筛选出一种新型长效酸液体系配方:20%HCl+0.9%聚合物A+2.5%缓蚀剂H+1.0%助排剂C+1.0%破乳剂Q。评价结果表明,该长效酸液体系耐温耐剪切性能好,腐蚀速度低,缓速性能及助排性能好。
The acid fracturing for carbonate reservoir in Tahe Oilfield requires that the acid fluid has the performances of high temperature resistance,delaying reaction rate,and reducing filtration rate. So it is need to develop a new long-acting acid fluid system. By optimizing polymers,gel breakers,and cleanup additives,the new long-acting acid fluid system formulation was obtained as follows： 20% HCl ＋ 0. 9%polymer A ＋ 2. 5% corrosion inhibitor H ＋ 1. 0% cleanup additive C ＋ 1. 0% demulsifier Q. The evaluation experiments were carried out and the results showed that the long-acting acid fluid system had good ability of heat resistance and shear resistance,low corrosion rate,good performance of retarding and cleanup.
出处
《精细石油化工进展》
CAS
2014年第5期25-28,共4页
Advances in Fine Petrochemicals
基金
国家科技重大专项课题6"缝洞型碳酸盐岩油藏高效酸压改造技术"(2011ZX05014-006)
关键词
碳酸盐岩
长效酸液体系
酸压
塔河油田
carbonate rock
long-acting acid fluid system
acid fracturing
Tahe Oilfield
