石油化工2024，Vol.53Issue(5)：686-693,8.DOI:10.3969/j.issn.1000-8144.2024.05.009
椰油酰胺丙基甜菜碱防聚剂对管输体系中水合物团聚的影响
Effect of anti-polymerization agent of cocamidopropyl betaine on hydrate agglomeration in pipeline system
摘要
Abstract
In view of anti-polymerization agent failure under high water content,the effect of the cocamidopropyl betaine(CAB-35)in new anti-polymerization agent on the flow stability of oil-water emulsion systems with different water content and initial flow rates was studied.The experimental results show that the increase in water content and initial flow rate will reduce the average chord length of hydrate particles and delay the plugging time of hydrate particles.CAB-35 also has a good anti-coagulation effect in pure water,and its cocamide group is a long alkyl chain,which can reduce the cohesion between particles and destabilize the cohesion of hydrate particles by affecting the liquid bridge between gas hydrate particles.CAB-35 still has a good anti-coagulation effect in inclined pipelines.The addition of CAB-35 can prolong the flow time of the hydrate slurry after the first stop and restart,but the flow rate cannot be restored to normal by restarting the pump after the second stop.The results of this study provide theoretical support for the selection of anti-polymerization agents,the anti-coagulation of hydrate in the high water content system,and the hydrate slurry flow in the unconventional pipeline section stop-start system.关键词
水合物/流动保障/防聚剂/倾斜管道/停输再启动Key words
hydrate/flow assurance/anti-polymerization agent/inclined pipelines/stop and restart分类
能源科技引用本文复制引用
张书炜,徐加放,潘振,王博闻,王健,陈杰..椰油酰胺丙基甜菜碱防聚剂对管输体系中水合物团聚的影响[J].石油化工,2024,53(5):686-693,8.基金项目
中石油集团公司关键核心技术攻关项目(2022ZG06) （2022ZG06）
国家自然科学基金面上项目(51874343). （51874343）
