武汉工程大学学报2024，Vol.46Issue(4)：363-369,7.DOI:10.19843/j.cnki.CN42-1779/TQ.202310027
基于不同工艺的高凝原油脱水技术实验研究
Experimental study on high pour point crude oil dehydration technology based on different processes
摘要
Abstract
To evaluate the treatment effectiveness of different dehydration processes on high pour point crude oil,with Bayan Oilfield's high pour point crude oil as the research object,experimental investigations were conducted on the dehydration process effects of natural sedimentation dehydration,thermochemical dehydration,electrochemical dehydration,high-frequency pulse dehydration,ultrasonic dehydration,and microwave dehydration.Experimental data revealed that BC-018K demulsifier exhibited the most optimal dehydration effect on Bayan crude oil,with an ideal dosage of 120 mg/L.For Bayan crude oil with a water content of≤20%,under the temperature of 60℃and a dosage of 120 mg/L,the qualified time for thermochemical sedimentation is 2 hours.Employing an electrochemical dehydration process with an electric field strength of≥1 000 V/cm,the time toreach dehydration standard(TDS)is 20 min.Similarly,utilizing the high-frequency pulse dewatering process with a frequency of 2.5 kHz and a pulse width ratio of 80 results in a TDS of 40 minutes.When applying the ultrasonic dehydration process with a frequency of 20 kHz,power of 60 W,and ultrasonic action time of 30 s,the TDS is 1 h.The microwave dehydration effect is comparable to that of thermochemical precipitation dehydration.The order of dehydration effect from best to worst is electrochemical dehydration,high-frequency pulse dehydration,ultrasonic dehydration,thermochemical sedimentation dehydration and microwave dehydration,natural sedimentation.For high pour point crude oil in Bayan Oilfield,it is recommended to prioritize the electrochemical dehydration process.关键词
高凝原油/脱水/电化学/破乳剂Key words
high pour point crude oil/dehydration/electrochemistry/demulsifier分类
能源科技引用本文复制引用
曲虎,杨佳朋,林俊岭,宋义伟,刘静..基于不同工艺的高凝原油脱水技术实验研究[J].武汉工程大学学报,2024,46(4):363-369,7.基金项目
中国石油工程建设有限公司科技项目(2022HBKJ01) （2022HBKJ01）
