海上平台快速除油剂的制备与应用  

Preparation and Application of High-speed Sewage Oil Removing Agent for Offshore Platform

作　　者：蒲涛 李永强 朱烨 陈志军 司永昌 姜学华 孟广伟 PU Tao;LI Yongqiang;ZHU Ye;CHEN Zhijun;SI Yongchang;JIANG Xuehua;MENG Guangwei(Tianjin Zhongyou Keyuan Petroleum Engineering Limited Liability Company,Dagang,Tianjin 300280,P R of China;Dagang Zhaodong Oil Company of PetroChina,Dagang,Tianjin 300280,P R of China;Tianjin Design Institute of PetroChina Pipeline Bureau Engineering Limited Company,Tanggu,Tianjin 300000,P R of China)

机构地区：[1]天津中油科远石油工程有限责任公司,天津大港300280 [2]中国石油大港油田对外合作项目部,天津大港300280 [3]中国石油管道局工程有限公司天津设计院,天津塘沽300000

出　　处：《油田化学》2018年第4期698-701,714,共5页Oilfield Chemistry

摘　　要：针对赵东平台采油污水量大、污水含油量高、平台处理时间短等问题,以二乙烯三胺和丙烯酸甲酯为原料制得3代聚酰胺-胺超支化聚合物,再与二甲胺和环氧氯丙烷反应制得枝状聚酰胺-胺类聚阳离子类除油剂KYOR,研究了KYOR支化度对除油率的影响,考察了KYOR与现场用破乳剂DGF-18B的配伍性,并在赵东平台以连续注入方式进行了现场应用。结果表明,在超支化聚胺类的球形结构中,用季铵盐进行封端及改性可提高其亲水性和分子量;KYOR系列产品中,支化度最高的3.0代聚酰胺-胺制备的KYOR-3的除油效果最好,30 mg/L的KYOR-3可使污水含油量由202.8 mg/L降至17.8 mg/L,20 min除油率为91.22%。KYOR-3与赵东平台现场用破乳剂DGF-18B的配伍性良好,对原油脱水无影响。KYOR-3现场处理赵东平台注入水后,含油量、悬浮固体含量和粒径中值均明显降低,达到赵东平台回注污水水质指标要求。Aiming at the problems of high quantity liquid production rate,high oil content sewage and short processing time on Zhaodong platform,the 3rd generation polyamide-amine hyperbranched polymer was prepared with diethylenetriamine and methyl acrylate as raw materials,and then reacted with dimethylamine and epichlorohydrin to obtain dendritic polyamide-amine polycation product KYOR. The branching degree effect of KYOR on oil removal rate and the compatibility of KYOR and demulsifier DGF-18 B were studied. Finally,KYOR was applied in the field on Zhaodong platform by continuous injection. The results showed that in the spherical structure of hyperbranched polyamines,the termination and modification with quaternary ammonium salts could improve their hydrophilicity and molecular weight. Among the KYOR series products,KYOR-3 prepared by 3.0-generation polyamide-amine with the highest branching degree had the best oil removal effect. The new oil removing agent could reduce the oil content from 202.8 to 17.8 mg/L and the oil removal rate was high up to 91.22% in 20 minutes when the dosage of KYOR-3 was 30mg/L. Good compatibility was found between KYOR-3 and DGF-18 B used on Zhaodong platform,which indicated that there was no effect on crude oil dehydration. The oil content,suspended matter and median particle diameter of injection water were all decreased after KYOR-3 was used in Zhaodong platform,which achieved the index requirements of reinjection water in Zhaodong platform.

关 键 词：聚酰胺-胺超支化聚合物 高分子 除油剂 合成 应用 

分 类 号：X703.5[环境科学与工程—环境工程]