西南石油大学学报（自然科学版）2017，Vol.39Issue(1)：177-184,8.DOI:10.11885/j.issn.1674-5086.2015.05.06.04
高浓度聚驱采出液乳化行为及电化学脱水方法
Emulsification Behavior and Electro-chemical Dehydration Method of Produced Liquid in High Concentration Polymer Flooding Wells
摘要
Abstract
Owing to the oil-water separation efficiency of produced liquid with high concentration polymer flooding and its impact on conventional AC-DC electric fields,the emulsification behavior and dehydration method of these types of emulsions were studied.Many evaluation methods were used for the gathering conditions,such as phase-inversion characteristics,electronegativity,distribution of emulsified oil-particle diameters,interface properties,micro-morphology of emulsions,and oil-water separation bottle tests.A dehydration experimental device with a pulsed power supply was established,and the adapt ability of high concentration polymer flooding produced liquid was assessed.The results indicate that the emulsified behavior of produced liquid in high concentration polymer flooding wells was closely related to an increase in polymer concentration.Increasing the polymer concentration enhanced the electronegativity and decreased the phase inversion points of emulsions to different degrees.Furthermore,difficulties of coalescence and phase separation increased because the high polymer concentration promoted the formation of a viscoelastic interfacial film.The oil-water separation effect can be improved in the dehydration process of a pulse power supply electric field with demulsifiers,and the dehydration operational stability can be perfected.关键词
高浓度聚合物驱/乳化特性/破乳脱水/采出液/大庆油田Key words
high concentration polymer flooding/emulsification property/dehydration/produced liquid/Daqing Oilfield分类
能源科技引用本文复制引用
张宏奇,刘扬,王志华,徐萌萌..高浓度聚驱采出液乳化行为及电化学脱水方法[J].西南石油大学学报（自然科学版）,2017,39(1):177-184,8.基金项目
国家自然科学基金优秀青年科学基金(51404068) （51404068）
黑龙江省普通本科高等学校青年创新人才培养计划(UNPYSCT-2015074) （UNPYSCT-2015074）
国家自然科学基金重点项目(51534004). （51534004）
