水溶性有机钴(Ⅱ)盐催化的稠油低温清洁水热裂解  

Aquathermolysis of heavy oil at relatively low temperature catalyzed by water-soluble organic Co(Ⅱ)salt

作　　者：陈刚[1] 赵巍[1] 宁阳[1] 张洁[1] 李永飞[1] 宋华[2] 

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]卡尔加里大学化学与石油工程学院

出　　处：《化学研究》2016年第3期307-311,共5页Chemical Research

基　　金：陕西省科技计划项目"多功能原油流动性改进剂的研制"(2012KJXX-40);陕西省教育厅科研计划项目"低渗透油田原油组分特征及其低温流动性改进研究"(2013JK0647)

摘　　要：为了开发新型稠油低温清洁水热裂解催化体系,合成了系列钴盐催化剂,用于低温下催化稠油热裂解,利用高温高压反应釜模拟井下热采条件,在反应温度为180℃、反应时间为24h、催化剂Co-3加量为0.5%,稠油降黏率可达到84.5%.稠油组分分析表明:水热裂解催化反应后,胶质、沥青质等重质组分含量减少;TGA和GC显示稠油经水热催化裂解反应后,轻质组分含量明显增加.In this paper,a series of organic Co-salts were prepared as the catalysts for the catalytic aquathermolysis of heavy oil at relatively low temperature.The downhole thermal recovery was simulated in the high voltage and temperature reactor to evaluate the catalytic viscosity reduction of the heavy oil.Under the best case in which the adding amount of Co-3was 0.5%,the reaction temperature was 180℃and the reaction time was 24 h,the heavy oil viscosity reduction ratio reached to 84.5%.Composition analysis of the heavy oil shows that the contents of resin and asphaltene decreased after the reaction.TG and GC analysis show that the light components increased after the aquathermolysis.

关 键 词：稠油 水热裂解 有机钴(Ⅱ)盐催化剂 低温 降黏 

分 类 号：TE345[石油与天然气工程—油气田开发工程]