辽宁石油化工大学学报2023，Vol.43Issue(6)：1-10,10.DOI:10.12422/j.issn.1672-6952.2023.06.001
复杂组分协同作用下的含蜡凝析油管壁结蜡机制
Mechanism of Wax Deposition on Wall of Waxy Condensates under the Synergistic Effect of Complex Components
摘要
Abstract
In order to explore the microscopic mechanism of wax deposition on the pipe wall of high temperature and high-pressure condensate gas wells,this paper uses molecular dynamics simulation technology by the Materials Studio to build condensate oil system with methane,pentane,nonane,n-dodecane,cyclobutane,cyclopentane,benzene and toluene,and the wax component model was built with n-octadecane,and simulate with wax content,asphaltene and scale as variables.The results show that with the increase of wax and asphaltene mass fraction,the wall wax deposition behavior can be intensified,but when the asphalt mass fraction reaches 2.0%,the wall wax deposition behavior can be inhibited.The more kinds of heteroatoms in asphaltene,the more obvious the promotion effect.When there is scale on the pipe wall,sulfate scale has a great influence on wax deposition.The understanding of microscopic mechanism provides a scientific basis for the treatment of wax deposition on the pipe wall.关键词
凝析油/管壁结蜡/垢/沥青质/分子模拟Key words
Condensate oil/Wax deposition in the wall/Scale/Asphaltene/Molecular simulation分类
能源科技引用本文复制引用
刘文波,史博文,戚亚明,刘晓宇,王志华..复杂组分协同作用下的含蜡凝析油管壁结蜡机制[J].辽宁石油化工大学学报,2023,43(6):1-10,10.基金项目
国家自然科学基金项目(52074090). （52074090）
