渤海稠油组分、结构分析及致黏机理研究  

Composition,Molecular Structure and Mechanism Analysis of Viscosity Formation of Bohai Heavy Oil

作　　者：冯海潮 刘东 廖辉 李田靓 解婷 FENG Hai-chao;LIU Dong;LIAO Hui;LI Tian-liang;XIE Ting(CNOOC Tianjin Branch,Tianjin 300459,China;China Oilfield Services Co.,Ltd.,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459 [2]中海油田服务股份有限公司,天津300459

出　　处：《承德石油高等专科学校学报》2024年第2期32-39,共8页Journal of Chengde Petroleum College

基　　金：中海石油(中国)有限公司天津分公司自主科研项目(绥中36-1/旅大5-2水驱后注热机理研究及应用):ZZKY-2020-TJ-08。

摘　　要：通过对渤海典型稠油油田LD-5油田稠油的组分、分子结构进行表征,揭示渤海稠油黏度较大的机理,结合分子模拟技术研究针对其分子组成特性的降黏方式。研究表明,渤海稠油重质组分含量高、且重质组分含有较多长侧链、多环结构的分子是使其黏度较大的主要原因,分子模拟结果表明,添加表面活性剂能够分散、减少重质组分立体堆积的作用,从而实现降低稠油黏度的目的。By characterizing the composition and molecular structure of heavy oil in LD-5 oilfield,a typical heavy oil field in Bohai Sea,the mechanism of high viscosity of heavy oil in Bohai is revealed,and the viscosity reduction method for its molecular composition characteristics is studied with molecular simulation technology.The research shows that the high content of heavy components in Bohai heavy oil and the heavy components containing molecules with long side chains and multi-ring structures are the main reasons for its high viscosity.The molecular simulation results show that the addition of surfactants can disperse and reduce the three-dimensional accumulation of heavy components,achieving the purpose of reducing the viscosity of heavy oil.

关 键 词：稠油降黏 分子结构 组分分析 分子模拟 

分 类 号：TE39[石油与天然气工程—油气田开发工程]