摘要
基质酸化运用于砂岩地层处理,但常规基质酸化中的氢氟酸可引起沉淀,伤害储层。本文开发了一种新型有机土酸酸化技术,它以一种新型的沉淀抑制剂和分散剂为主剂,与土酸以及其他添加剂构成有机土酸体系。该体系采用一次泵入技术,能有效地改善地层渗透率,减少出现次级及三次沉淀的危险,降低了成本,提高了增产效果,使油田酸化更易实施和控制。
Matrix acidizing is used to treat sandstone formation,but hydrofluoric acid in conventional matrix acidizing can cause sedimentation and damage reservoir.In this paper,a new type of organic earth acid acidizing technology is developed,which is composed of a new type of precipitation inhibitor and dispersant as the main agent,earth acid and other additives.The system can effectively improve the formation permeability,reduce the risk of secondary and tertiary sedimentation,reduce the cost,improve the stimulation effect,and make the oilfield acidification easier to implement and control.
作者
李杰
袁树新
宋健
辛有成
赵钰
Li Jie;Yuan Shuxin;Song Jian;Xin Youcheng;Zhao Yu(Northeast Petroleum University,Heilongjiang,163318;Xi,an Junde Petroleum engineering technology Co.,Ltd.,Shaanxi,710000)
出处
《当代化工研究》
2019年第16期73-75,共3页
Modern Chemical Research
关键词
基质酸化
有机土酸
沉淀抑制
溶蚀率
matrix acidification
organic acid
precipitation inhibition
dissolution rate
