摘要
本文考察了温度、[H^+]、[BF_4^-]对氟硼酸水解速度的影响和氟硼酸与硅质物质的反应情况,得到了氟硼酸的水解动力学方程。研究表明,在80℃以下,氟硼酸与硅质物质的反应速度较土酸低;采用氟硼酸酸化技术可望实现砂岩地层的深部酸化。
The effect of temperature and concentrations of H^+ and BF_4^- on the hydrolysis rate of fluoboric acid has been studied and a kinetic eguation of hydrolysis is established as -d[BF_4^-]/dt=2.696×10~7exp(-6.225×10~4/RT)[H^+]~3/~2[BF_4^-].With siliceous substances the reaction rate of HBF_4 is noticeably lower than that of mud acid(12%HC1/3%HF mixture) at temperatures below 80°.It is concluded that fluoboric acid can be used in acidizing fluids for increasing live-acid penetration.
出处
《油田化学》
CAS
CSCD
北大核心
1989年第2期111-114,共4页
Oilfield Chemistry
