含聚稠油高效破乳剂研究与应用  

Research and application of high efficiency demulsifier for heavy oil containing polymer

作　　者：刘少鹏 朱凯 胡玉东 徐超 刘洋 LIU Shaopeng;ZHU Kai;HU YuDong;XU Chao;LIU Yang(CNOOC EnerTechDrilling&Production Co. ,Tanggu,Tianjin,300452,China;Tianjin Branch,CNOOC China Limited,Tanggu,Tianjin,300452,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津塘沽300452 [2]中海石油(中国)有限公司天津分公司,天津塘沽300452

出　　处：《化学研究与应用》2018年第2期243-248,共6页Chemical Research and Application

基　　金：中国海洋石油总公司科技项目(CNOOC-KJ 125 ZDXM 06 LTD NFGC 2014-01)资助

摘　　要：2014年以来渤海某注聚稠油油田产出液聚合物浓度高、原油黏度大导致原油脱水困难,原破乳剂脱水效果无法满足要求。通过苯酚、多乙烯多胺与甲醛合成酚胺树脂起始剂,然后与环氧乙烷、环氧丙烷聚合得到多支化嵌段聚醚破乳剂108#。破乳剂108#具有使用浓度低、脱水速度快的特点,且最终脱水率接近90%。矿场试验结果表明,108#破乳剂加注量比原破乳剂减少48%,外输原油含水从15%-16%降低至9%,原油脱水效果明显改善。Polymer flooding produced fluid with high concentration of polymer and high viscosity had been separated difficultly in some heavy-oil oilfield since2014,because the demulsifier in use could not meet the requirement of dehydration.Phenol-amine resin was synthesized using phenol,polyethylene polyamine,and formaldehyde as raw materials,and then branched polyether demulsifier108#were further synthesized using phenol-amine resin as initiator through addition reaction with epoxyethane and epoxypropane re-spectively.Low concentration and high dehydration rat were the main characteristics of demulsifier108#,in addition,the final dehy-dration rate of108#is close to90percent.Field test result showed that demulsifier108#could improve the dehydration rate,and wa-ter cut of output crude oil dropped from15percent to9percent,the dosage of demulsifier reduced by48percent.

关 键 词：破乳剂 聚合物驱 含聚稠油 原油乳化液 

分 类 号：O648.3[理学—物理化学]