用磺化稠油降低稠油粘度的初步研究  

A Preliminary Study on Viscosity Reduction of Heavy Crude Oil by Using Sulfonated Heavy Crude Oil

作　　者：罗健辉[1] 赵常青 张灯[3] 王克[4] 江波[5] 

机构地区：[1]中国石油勘探开发研究院采油所,北京100083 [2]成都市高新区政府人事局,四川成都610041 [3]中国石油西南油气田分公司勘探开发研究院,四川成都610051 [4]四川大学高分子研究所,四川成都610065 [5]四川大学化学学院,四川成都610064

出　　处：《油田化学》2003年第3期208-209,241,共3页Oilfield Chemistry

摘　　要：在低温下 (15～ 2 0℃ )用 5 0 %～ 6 0 %的硫酸将辽河稠油磺化 ,得到了一系列磺化稠油 ,在 5 0℃粘度为 115 3mPa·s的辽河稠油中按质量比 2 g/kg加入磺化稠油 ,使 5 0℃粘度降至 786～ 914mPa·s ,降粘率为 19.8%～31.8%。将磺化反应进行优化 ,得到磺化稠油的最好制备条件 :5 5 %硫酸 ,用量为稠油的 1.5 % ,在 15℃反应 2h。得到的磺化稠油在加剂量为 2 g/kg时使稠油 5 0℃粘度下降 30 .8%。稠油降粘率与加剂量的关系曲线很复杂 ,经过一个明显的极大值和一个极小值 ,极大值对应的加剂量为 2 g/kg ,即最佳加剂量。讨论了稠油降粘机理。图 1表 1参 2。A series of sulfonated heavy crude oil (SHCO) are prepared through sulfonating a heavy crude oil of Liaohe with viscosity 1 153 mPa·s at 50℃ by 50-60% sulfuric acid at low temperatures 15-20℃ and, introduced into the heavy crude at dosage 2 g/kg, reduce its viscosity at 50℃ to 786-914 mPa·s with viscosity reduction rate being 19.8-31.8%. The optimized conditions of sulfonation reaction of the heavy crude are: the concentration of sulfuric acid 55%, the amount of acid used 1.5%, reaction temperature 15℃, reaction time 2 h. The SHCO prepared at these conditions at dosage 2 g/kg reduces the viscosity of the heavy crude at 50℃ by 30.8%. The relationship between viscosity reduction rate and SHCO dosage is complicated in that the curve goes through a sharp maximum followed by a minimum and the maximum is located at dosage 2 g/kg, or the optimal dosage. The mechanisms involved in viscosity reduction by SHCO are discussed.

关 键 词：磺化稠油 油溶性降粘剂 稠油降粘 制备 油气集输 

分 类 号：TE869[石油与天然气工程—油气储运工程]