吴起油田增产增注酸化技术研究  

Study on acidification technology of Wuqi Oilfield

作　　者：李文[1] 李建山[2] 刘祥[1] 

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]中国石油天然气股份有限公司长庆油田分公司超低渗透油藏研究中心,陕西西安710018

出　　处：《化学工程师》2011年第3期48-50,55,共4页Chemical Engineer

摘　　要：以吴起油田储层为研究对象,分析测试了储层岩心的矿物成分,优选了用于储层岩心酸化体系的缓蚀剂、铁离子稳定剂、粘土稳定剂和表面活性剂。考察了HCl、HF和有机酸用量对储层岩心溶蚀率的影响,得到了适用于吴起油田酸化的酸化体系配方。模拟岩芯酸化实验结果显示,提出的用于吴起油田酸化的酸化体系配方可有效的溶蚀岩心空隙间的粘土矿物,扩大渗流通道,使渗透率明显提高。The mineral typomorphism of Wuqi Oil Field reservior core were analyzed,the corrosion inhibitor,iron stabilization,clay stabilization and surface activated agent were choosen for reservior core acidulant.Hydrofluoric acid and organic acid were examined for acidulated system for Wuqi Oilfield aciditication.The result of simulating the core acidulating showed that the prescription of acidulated system for Wuqi Oilfield can dissolution the clay mineral in the core gap effectively,wide the sulfurization strike to increase the rate of sulfurization.

关 键 词：吴起油田 储层 酸化添加剂 酸化 

分 类 号：TE242[石油与天然气工程—油气井工程]