电场强化油水分离技术在油田采出液中的应用研究  

Application research of electric field enhanced oil-water separation in oilfield produced liquid

作　　者：唐晓旭 张勇 王秀军[2,3] 陈家庆 TANG Xiaoxu;ZHANG Yong;WANG Xiujun;CHEN Jiaqing(Tianjin Brach of CNOOC,Tianjin 300452,China;State Key Laboratory of Offshore Oil Exploitation,Beijing 100028,China;CNOOC Research Institute Company,Ltd.,Beijing 100028,China;Beijing Institute of Petrochemical Technology,Beijing 102617,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300452 [2]海洋石油高效开发国家重点实验室,北京100028 [3]中海油研究总院有限责任公司,北京100028 [4]北京石油化工学院,北京102617

出　　处：《工业水处理》2022年第3期168-171,177,共5页Industrial Water Treatment

基　　金：国家自然科学基金企业创新发展联合基金重点支持项目(U20B2030)。

摘　　要：目前海上油田处理高含水采出液采用的是“三相分离+电脱水”工艺,工艺流程较长,占地面积大。为了更高效地处理高含水采出液,设计了新型电场强化油水分离器,并制造了处理能力为10 m^(3)/h的撬装装置。通过矿场试验研究了频率、破乳剂等对电场强化油水分离器分离效果的影响,结果表明,针对平台高含水(含水率78%~97%)原油来液,当控制入口流量为10 m^(3)/h,静电聚结器电源电压为4.98 kV,电源频率为3 500 Hz时,油相出口含水低至7%,可以不加破乳剂,节约了药剂成本。At present,the process of“three-phase separation+electric dehydration”is adopted in the treatment of high water-cut produced fluid in offshore oilfields,which has a long process flow and a large area. In order to deal with the produced fluid with high water content more efficiently,a new type of electric field-enhanced oil-water separator was designed,and a skid-mounted device with a processing capacity of 10 m^(3)/h was manufactured. The influence of frequency,demulsifier,etc. on the separation effect of the electric field-enhanced oil-water separator was studied through field experiments. The results showed that for the platform crude oil incoming liquid with high water content(water content of 78%-97%),when the inlet flow rate,the power supply voltage of the electrostatic coalescer and the power supply frequency was controlled to 10 m^(3)/h,4.98 kV and 3 500 Hz,the water content of the oil phase outlet was as low as 7%. In this case,the demulsifier could be omitted,which saved the cost of medicine.

关 键 词：静电聚结 三相分离器 脱水 破乳 

分 类 号：TE868[石油与天然气工程—油气储运工程]