枝型油溶性降黏剂的合成及降黏机理  

Synthesis and Mechanism of Dendritic Oil-Soluble Visbreaking Agent

作　　者：全红平[1] 明显森[1] 黄志宇[1] 张太亮[1] 鲁红升[1] 崔荣华[1] 

机构地区：[1]西南石油大学化学化工学院,成都610500

出　　处：《新疆石油地质》2013年第1期77-78,共2页Xinjiang Petroleum Geology

基　　金：高等学校博士学科点专项科研基金(200806150003)

摘　　要：针对目前油溶性稠油降黏剂存在使用条件受限和降黏效果差等问题,研制了一种枝型油溶性原油降黏剂。其降黏机理是:降黏剂中的极性基团可以和原油中的胶质沥青质形成氢键;降黏剂中含有的长链烷基也可以吸附一些胶质沥青质,有效地阻碍了胶质沥青质的堆积;而降黏剂所具有的枝型结构可以更进一步将胶质沥青质分散开来,达到降黏的目的。该降黏剂的降黏效果好于目前使用的油溶性降黏剂,对多种稠油均具有一定的降黏效果。In view of problems that the oil-soluble heavy oil visbreaking agent has limited conditions for application and low response for visbreaking, a new kind of dendritic oil-soluble heavy oil visbreaking agent was developed. Its visbreaking mechanism is that the polar group in the agent can form hydrogen bond by combining with colloidal asphaltene, and the long-chain alkyl group in it could adsorb a part of colloidal asphahene, thus inhibiting the accumulation of colloidal asphahene. In addition, the dendritic structure of this agent allows the colloidal asphaltene to be further dispersed for the purpose of visbreaking. Case study indicates that this agent is better than the oil-soluble visbreaking agent available at present and suitable for visbreaking of multiple heavy oils.

关 键 词：稠油降黏剂 降黏机理 XRD衍射 透射电镜 

分 类 号：TE357.43[石油与天然气工程—油气田开发工程]