蒸汽和金属盐作用下稠油黏度的变化  

Changes in Viscosity of Heavy Crude Oil Treated by Steam and Metal salts

作　　者：范洪富[1] 马军[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院

出　　处：《油田化学》2006年第2期150-152,176,共4页Oilfield Chemistry

基　　金：国家自然科学基金化学辅助热力井下改质降黏稠油技术研究(项目编号50374019);国家自然科学基金离子液体对稠油的改质降黏及作用机理研究(项目编号50574017);中国石油天然气集团公司中青年创新基金离子液体对稠油的改质降黏作用研究(项目编号05E7049)

摘　　要：在高温高压反应釜中实验考察了50℃黏度88．3Pa·s、平均分子量654的辽河曙光桐油的水热裂解降黏条件及6种金属盐的催化效能。在裂解温度240℃下，当加水量≥30mL／100g稠油或裂解时间≥36小时时，裂解后稠油黏度的降幅变得很小；随裂解温度（160～280℃）升高，裂解后稠油的黏度降低。在裂解温度240℃、裂解时间48小时、加水量30mL／100g稠油、金属盐在水中的质量分数为0．02％的备件下，NiSO4·6H2O对稠油水热裂解的催化效能最好，其次是VOSO4和CuSO4·5H2O，Al2（SO4）3最差，裂解后稠油的黏度分别为32．4、36．7、42．6、52．4Pa·s，而空白值为62，4Pa·S.图3表1参15。The conditions of aquathermolysis （ATh） in autoclave and the catalytic effect of 6 metal salts in ATh are investigated for heavy crude oil of viscosity 88.3 Pa＇s at 50℃ and average molar mass 654 and taken from Shuguang, Liaohe, in purpose of reducing its viscosity. The decrement in viscosity of the aquathermolysized oll become very small when 930 mL of water is introduced into 100 g of oil or ATh is prolonged over 36 hrs and more at ATh temperature 240℃ ; the viscosity of aquathermolysized oll is decreased with increasing ATh temperature from 160℃ to 280℃. At ATh temperature 240℃, ATh duration 48 hrs, water volume introduced 30 mL per 100 g of oil, and concentration of metal salts in water 0.02%, NiSO4 ·6H2O demonstrates the best catalytic effect on ATh, followed by VOSO4 and CuSO4·5H2O, and Al2（SO4）3 the worst; the viscosity of aquathermolysized oil is of 32.4,36.7,42.6, and 52.4 Pa＇s, respectively,in contrast with 62.4 Pa＇s as blank.

关 键 词：稠油 水热裂解 反应条件 催化剂 金属盐 降黏 辽河曙光油田 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程] TE624.3