X油田Y联合站老化油破乳剂新配方实验研究
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摘要
X油田Y联合站老化油具有黏弹性模量高、不溶的黏土矿物及含铁的不溶固体杂质含量高的特点,导致该联合站老化油破乳脱水过程中杂质分离困难且经常出现"垮电"现象。常规工艺对于该联合站老化原油的处理效果并不理想,因此针对该联合站老化油处理难的问题,通过对预先筛选配置的15种老化原油破乳剂进行单因素实验分析优选,后得出在处理该联合站老化油时,破乳剂21号和401号的破乳脱水效果最好。通过对21号和401号破乳剂进行进一步的复配破乳实验研究,得出老化油破乳剂新配方的21号和401号破乳剂按1∶1配比混合、破乳浓度为250μL/L、温度为75℃时,对该联合站老化油的脱水效果最好,且脱出水水质清晰,油水中间过渡层最薄。后将该复配配方应用于Y联合站的1000m~3沉降罐的老化油破乳脱水实验,脱水24h后,含杂质的中间过渡层变清,脱水油含水及脱出水中含油均低于1%,达到了原油外输要求。
The aging oil of joint station Y in Oilfield X has the characteristics of high viscoelastic modulus,insoluble clay minerals and high content of iron containing insoluble solid impurity.It results in difficulty in the separation of the impurities in the demulsification and dehydration process of the aging oil and the elec-tric field fail phenomenon often appears at the joint station.The aging oil at this joint station was treated by the general technology,but the effect was not ideal.According to this difficulty,15 kinds of demulsifier for the aging oil screened were analyzed and optimized through single factor experiment.No.21 and No.401 demulsifier has the best performance of demulsification and dehydration.After the combination demulsification experiment was made,the best dehydration effect may be achieved when No.21 and No.401 demulsifier is mixed as 1 ∶1 with demulsification concentration of 250μL/L at 75℃.The anhydrous quality is clear and oil-water transitional zone is the thinnest.The formula was also applied to the demulsification and dehydration experiment of the aging oil in the 1000 m~3 settling tank of joint station Y.After dehydration for 24 h,the black water containing impurities became clear,and the water content of the dehydrated oil and the oil in the water were both below 1%,which reaches the crude oil transportation criterion.
The aging oil of joint station Y in Oilfield X has the characteristics of high viscoelastic modulus,insoluble clay minerals and high content of iron containing insoluble solid impurity.It results in difficulty in the separation of the impurities in the demulsification and dehydration process of the aging oil and the elec-tric field fail phenomenon often appears at the joint station.The aging oil at this joint station was treated by the general technology,but the effect was not ideal.According to this difficulty,15 kinds of demulsifier for the aging oil screened were analyzed and optimized through single factor experiment.No.21 and No.401 demulsifier has the best performance of demulsification and dehydration.After the combination demulsification experiment was made,the best dehydration effect may be achieved when No.21 and No.401 demulsifier is mixed as 1 ∶1 with demulsification concentration of 250μL/L at 75℃.The anhydrous quality is clear and oil-water transitional zone is the thinnest.The formula was also applied to the demulsification and dehydration experiment of the aging oil in the 1000 m~3 settling tank of joint station Y.After dehydration for 24 h,the black water containing impurities became clear,and the water content of the dehydrated oil and the oil in the water were both below 1%,which reaches the crude oil transportation criterion.
引文
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[13]潘泽昊,陈家庆,张龙,等.流花油田老化油高频/高压脉冲交流电场破乳脱水研究[J].过程工程学报,2015,15(6):969-975.
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[15]孟祥娟,陈德飞,曹献平,等.生物技术在老化油处理中的研究与应用进展[J].化工进展,2016,35(8):2406-2411.
[2]王瑞,唐晓东,苏旭,等.辽河油田老化油破乳脱水实验研究[J].特种油气藏,2010(6):100-102,129.
[3] YANG X U, FANG M A, YANG D, et al.De-emulsification Ability of a Microbial Compound De-emulsifier[J].Journal of Harbin Institute of Technology,2011,43(8):61-64.
[4]刘扬,魏金辉,王志华,等.头台油田老化油回收处理工艺技术[J].特种油气藏,2012(1):131-134.
[5]尚飞飞,廖克俭,王洪国.辽河油田稠油及老化油物性分析[J].石油化工高等学校学报,2011(5):17-21.
[6] RONNINGSEN S P.Wax Deposition and Control in North Sea Oil and Gas Production Systems[C]//Aiche Spring National Meeting,2013.
[7]马方义,董健,李昊,等.蓬莱老化原油化学法处理方案研究[J].现代化工,2018,38(4):197-200.
[8]孙春柳,曲延明,刘卫东,等.不同结构破乳剂对原油乳状液的适用性研究[J].石油与天然气化工,2009,38(6):515-517, 538.
[9]尚飞飞,廖克俭,王洪国.辽河老化油破乳脱水工艺技术研究[J].石油炼制与化工,2012(5):36-39.
[10]杨秘,马兆峰,王聚锋,李海涛,王立秋.渤海油田老化油处理工艺研究[J].工业水处理,2018,38(7):87-90.
[11] VALD魪S G,P魪REZ-JIM魪NEZ F,MIR魷R,et al.Experimental Study of Recycled Asphalt Mixtures with High Percentages of Reclaimed Asphalt Pavement(RAP)[J].Construction&Building Materials,2011,25(3):1289-1297.
[12]毛致远,王洪国,刘淼,等.辽河老化油用破乳剂的制备及其破乳性能[J].油田化学,2018,35(2):333-338.
[13]潘泽昊,陈家庆,张龙,等.流花油田老化油高频/高压脉冲交流电场破乳脱水研究[J].过程工程学报,2015,15(6):969-975.
[14]仝坤,宋启辉,刘光全.老化油处理技术研究进展[J].化工环保,2018,38(6):629-634.
[15]孟祥娟,陈德飞,曹献平,等.生物技术在老化油处理中的研究与应用进展[J].化工进展,2016,35(8):2406-2411.