二元复合驱采出液的油水界面性质和破乳条件的关系  

Oil-Water Interfacial Properties and Emulsion Stability of Produced Water from an Oilfield with Polymer-Surfactant Combination Flooding

作　　者：林梅钦[1] 王浩[1] 田丹[1] 毛雷霆[2] 宗华[2] 李明远[1] 

机构地区：[1]中国石油大学(北京)提高采收率研究中心,北京102249 [2]中国石化胜利油田胜利勘察设计研究院有限公司,山东东营257026

出　　处：《石油化工》2011年第7期753-758,共6页Petrochemical Technology

基　　金：国家重大科技专项资助项目(2008ZX05011-4)

摘　　要：用界面张力仪和表面粘弹性仪研究了部分水解聚丙烯酰胺(HPAM)和表面活性剂(石油磺酸盐和非离子型表面活性剂)形成的二元复合体系对模拟油与模拟水(简称油水)界面特性、乳状液稳定性和采出液处理效果的影响。实验结果表明,含固体悬浮物的采出液过滤后与模拟油间的界面张力和界面剪切黏度降低;随表面活性剂浓度的增加,油水间的界面张力和界面剪切黏度降低,而随HPAM浓度的增加,油水间的界面张力和界面剪切黏度增加;原油与二元复合体系所形成的W/O和O/W型乳状液稳定性随HPAM和表面活性剂浓度的增加而提高;采出液中HPAM和表面活性剂的浓度增加,处理采出液的效果变差。Effects of partially hydrolyzed polyacrylamide （HPAM） and surfactants （petroleum sulfonate and non-ionic surfactant） on oil/water interfacial properties, emulsion stability and treatment of the produced water from Shengli Oilfield were studied by means of interfacial tensiometer and interfacial viscoelastometer. The results indicated that the oil/water interfacial tension and the interfacial shear viscosity decreased after the produced water with suspended solids was filtered, and lowered with increase of the surfactant concentration but increased with increase of HPAM concentration. The stabilities of both the W/O and the O/W emulsions with crude oil and polymer- surfactant combination flooding were enhanced with increase of HPAM and surfactant concentrations, but the treatment effect for the produced water became poor.

关 键 词：部分水解聚丙烯酰胺 表面活性剂 界面张力 乳状液 采收率 复合驱 石油生产 

分 类 号：TQ317.4[化学工程—高聚物工业]