孤东油田聚合物驱采出污水处理剂研究  

Study on Treatment Agent of Polymer Flooding Produced Water in Gudong Oilfield

作　　者：梁伟[1] 孙源秀[2] 赵修太[2] 芦玉花[3] 尚跃强[1] 苏金长 

机构地区：[1]中国石化胜利油田分公司采油工艺研究院,山东东营257000 [2]中国石油大学(华东)石油工程学院,山东青岛266555 [3]中国石化胜利油田鲁明公司科研中心,山东东营257000 [4]中海油能源发展钻采工程研究院湛江实验中心,广东湛江524057

出　　处：《油田化学》2012年第1期98-101,共4页Oilfield Chemistry

基　　金：国家"大型油气田与煤层气开发"科技重大专项子课题"储层保护机理及新技术研究"(项目编号2008ZX05002-005);中石化集团公司先导性项目"胜利油田采油污水配注聚合物节水技术研究"(项目编号306023)

摘　　要：聚合物驱采出污水由于残余聚合物的影响,处理难度很大。通过室内热化学沉降实验,优选出了高效复配型絮凝剂,评价了不同聚合物降解剂降低HPAM溶液黏度性能,确定了聚合物驱采出污水处理剂的优化配方为:100 mg/L聚合氯化铝铁+100 mg/L改性聚合氯化铝+6 mg/L对苯二酚+8 mg/L过硫酸钾+6 mg/L亚硫酸铁。经过该处理剂处理后,孤东油田聚合物驱采出污水的含油量下降97.26%,透光率从28.6%上升至90.5%,水相黏度从1.8 mPa.s降至1.0 mPa.s,达到了油田回注标准。Polymer flooding produced water is hard to deal with because of the effect of the residual polymer （HPAM）. A kind of efficient and compound floccvlent was optimized and the degradation performance of different polymer degradation agent system was evaluated, the optimal concentration and ratio between flocculants and polymer degradation agent were determined through thermochemical sedimentation experiment. As a result, the optimal formulation of the treatment agent was obtained as follows： 100 mg/L poly aluminum ferric chloride ＋ 100 mg/L modified poly ahminium chloride ＋6 mg/L hydroquinone ＋8 mg/L K2S20s ＋6 mg/L FeSO4. After treated, the oil content of the water of polymer flooding water decreased by 97.26%, the light transmission rate increased from 28.26% to 90.5%, and the viscosity of the water phase decreased from 1.8 mPa.s to 1.0 mPa＇s, which reached the reinjection standard of oilfield.

关 键 词：聚合物驱 采出污水 絮凝剂 聚合物降解剂 协同效应 污水处理 

分 类 号：TE357[石油与天然气工程—油气田开发工程]