日用化学工业（中英文）2024，Vol.54Issue(7)：784-794,11.DOI:10.3969/j.issn.2097-2806.2024.07.005
LP油田沉降罐过渡带原油破乳脱水实验研究
Experimental study on demulsification and dehydration of crude oil in the transition zone of LP oilfield sedimentation tank
摘要
Abstract
The crude oil in the transition zone of LP oilfield settlement tank contains colloidal FeS and other components that play an emulsifying role,which makes crude oil dehydration difficult and cannot meet the requirements of crude oil inlet electrodehydrator.The physical properties,crude oil composition and produced water composition of crude oil in the transition zone were analyzed,and the screening of FeS remover and demulsifier was optimized,and the demulsification effect and adaptability of the combined FeS remover and demulsifier were studied.The results show that the screened FeS remover BLJ-01 has a good dissolution effect on FeS,and the combination of 3%FeS remover BLJ-01 and 800 mg/L demulsifier X-75 can effectively remove FeS from crude oil in the sedimentation tank transition zone at 55℃,with the dehydration rate of crude oil in the sedimentation tank transition zone reachings 85.78%.BLJ-01 has strong adaptability with X-75,and the dehydration rate of crude oil in the transition zone of P2 joint station settlement tank with a water content of more than 40%can reach more than 80%.It can show excellent demulsification effect under weak acid or weak alkaline conditions,which is also suitable for demulsification and dehydration of crude oil in the transition zone of SJ station settlement tank,and can significantly reduce the amount of demulsifier.关键词
沉降罐过渡带原油/破乳/硫化亚铁/处理剂Key words
crude oil in the transition zone/demulsification/FeS/treating agent分类
石油、天然气工程引用本文复制引用
张政,童志明,杨超,王占生,陈武..LP油田沉降罐过渡带原油破乳脱水实验研究[J].日用化学工业（中英文）,2024,54(7):784-794,11.基金项目
中国石油天然气集团有限公司科研与技术开发项目"绿色油气田污染防治及生态保护研究"课题(2021DJ6606) （2021DJ6606）
