四氢呋喃在岩样原油抽提中的应用

Application of THF on extracting crude oil from core sample

本文在充分了解和认识原油组份及溶剂性质的基础上,通过实验对比,遴选出四氢呋喃作为新一代岩样残存抽提溶剂。该抽提溶剂除了具有沸点相对较低、粘度较低、分子极性较高、水溶性好等利于抽提原油的优点外,特别还具有近乎无毒的显著特性。使用四氢呋喃抽提岩样原油能大大改善工作环境和提高工作效率,还能有效防止抽提溶剂对大气环境的污染。用四氢呋喃抽提岩样残存原油的方法在国内外相关技术资料中尚未发现。目前该方法已申请专利并受理。

Tetrahydrofuran（THF） is a good extraction solvent to crude oil in core sample.The extraction solvent possesses have not only relatively low boiling point,relatively low viscosity,relatively high polarity,good water-solubility,but also innoxiousness.THF can improve work environment and efficiency,and it can greatly reduce pollution of extraction solvent.