鲁克沁油田缓速酸体系研究  

Study on Retarded Acid in Lukeqin Oilfield

作　　者：陈奇涛[1] 赵荣[1] 

机构地区：[1]长江大学石油工程学院,荆州434023

出　　处：《精细石油化工进展》2012年第1期20-22,26,共4页Advances in Fine Petrochemicals

摘　　要：介绍了鲁克沁油田油藏特性,考察了盐酸、土酸及缓速酸对鲁2井岩粉和岩块的缓速性能。结果表明,土酸对岩粉溶蚀率最高,达50%以上;由15%HCl+10%黏土酸组成的缓速酸和12%HCl+3%氟硼酸组成的缓速酸对岩粉和岩块溶蚀率均较低,对岩粉溶蚀速度较慢,尤其是起始溶蚀速度明显小于土酸。对酸液中添加剂进行筛选,确定缓速酸体系由缓速酸(15%HCl+10%黏土酸)+黏土稳定剂(1%NTW-2)+铁离子稳定剂(TW-1)+缓蚀剂(HS-6)组成。The characteristics of oil reservoirs in Lukeqin Oilfield were introduced. The redarding perfomances of hydrochloric acid, mud acid and retarded acid on rock powder and rock were examined. The results showed that mud acid has the highest dissolution rate with the value not less than 50% on rock powder;retarded acid composed of 15% HC1 ＋ 10% clay acid or 12% HC1 ＋3% fluoroboric acid has lower dissolution rate on rock powder and rock and has a slower dissolution speed on rock powder, especially the initial dissolution speed is obviously less than mud acid. The components in retarded acid system were determined by screening of acid additives as follows： retarded acid （ 15% HC1 ＋ 10% clay acid） ＋ clay stabilizer （ 1% NTW -2） ＋ iron ion stabilizer （ TW - 1 ） ＋ Corrosion inhibitors （ HS - 6） . Key words1 rotnrdad Acid ： mud acid ： stabilizer ： corrosive inhibitor

关 键 词：缓速酸 土酸 稳定剂 缓蚀剂 

分 类 号：P618.13[天文地球—矿床学]