文章摘要
鲍晋,石孝志,何启平,陆丽,赵众从.滑溜水返排液反相破乳剂开发及破乳机理[J].精细化工,2019,36(4):
滑溜水返排液反相破乳剂开发及破乳机理
Reverse Demulsifier for Slickwater Flowback Fluid and Its Demulfication Mechanism
投稿时间:2018-05-03  修订日期:2018-11-28
DOI:
中文关键词: 反相破乳剂  滑溜水返排液  三甲基羟乙基丙二胺  动态界面张力
英文关键词: reverse demulsifier  Slickwater flowback fluid  trimethyl- hydroxypropyl propane diamine  dynamic interfacial tension
基金项目:国家科技重大专项(2016ZX05040006)页岩气和煤层气开发环境保护技术集成及关键装备;中国石油天然气集团公司科学研究与技术开发项目(2016E-1202)页岩气开发废弃物处理与利用关键技术研究与示范应用
作者单位E-mail
鲍晋 川庆钻探工程有限公司井下作业公司 baojin@me.com 
石孝志 川庆钻探工程有限公司井下作业公司  
何启平 川庆钻探工程有限公司井下作业公司  
陆丽 川庆钻探工程有限公司井下作业公司  
赵众从 长江大学石油工程学院  
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中文摘要:
      以三甲基羟乙基丙二胺为起始剂,KOH为催化剂,通过环氧乙烷和环氧丙烷的开环聚合,在120℃下合成了一系列二嵌段和三嵌段聚醚反相破乳剂。FTIR和1HNMR表明合成产物与设计结构一致。通过瓶试法对滑溜水返排液进行了破乳实验,结果发现:具有三嵌段结构、且n〔环氧乙烷(EO)〕:n〔环氧丙烷(PO) 〕:n〔环氧乙烷(EO)〕=1:6:12的破乳剂脱水率大于97%,具有良好的破乳效果。动态界面张力的扩散动力学研究表明:EPO-8反相破乳剂从水相扩散至界面速率快,在油表面吸附性和降低界面膜强度能力更强,是其破乳性能良好的主要原因。
英文摘要:
      In this paper, a series of two-block and thri-block polyether reverse demulsifiers were synthesized under 120 ℃ conditions by using trimethyl-hydroxypropyl propane diamine as initiator, potassium hydroxide as catalyst and through open-loop polymerization of ethylene oxide (EO) and propylene oxide (PO) as monomers. The infrared spectra and NMR spectra show that the synthesized products are consistent with the design structure.The demulsification results showed that the reverse demulsifier with tri-block structure and block mass ratio n(EO): n(PO): n(EO)=1:6:12 has a well demulsification performance for slickwater flowback fluid. Its dehydration rate is greater than 97%. The results of dynamic interfacial tension and interfacial dilatation modulus experiments presented that EPO-8 has faster diffusion rate to interface and better performance for decreasing the film strength. That is why it had the best demulsification performance.
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