化学驱油体系的油/水界面粘度  

INTERFACIAL VISCOSITY FOR CRUDE OIL/CHEMICAL FLOODING SOLUTION SYSTEMS

作　　者：刘卫东[1] 童正新[1] 李明远[2] 鞠岩[1] 

机构地区：[1]中国石油天然气集团公司渗流流体力学研究所,河北廊坊065007 [2]石油大学(北京)化工学院,北京昌平102200

出　　处：《油田化学》2000年第4期337-339,共3页Oilfield Chemistry

摘　　要：应用界面粘弹性测定仪测定了聚合物 /表面活性剂 /碱三元复合驱体系的油 /水界面粘度。通过实验发现 ,大庆油田采油三厂原油与注入水、HPAM溶液之间均有较高的界面粘度 ,加入表面活性剂后界面粘度降低 ,老化现象减轻。三元复合体系具有合适的界面粘度和较低的界面张力 ,才会具有较高的驱油效率。By using an intertacial rheometer of SVR.S type the interfacial viscosity( ITV) is measured at 45℃ for systems of a typical Daqing crude oil(from the 3d Daqing Oil Production Factory) and various chemical [alkaline/surfactant(s), surfactant/polymer, and alkaline/surfactant(s)/polymer] flooding solutions. The efficiency of these flooding solutions is discussed in relation to their ITV values measured. It is concluded that① high ITV values are observed between the crude and the injection water; ②adding surfactant(s)(ORS41, RH cult) to the water leads to lowering the ITV values and reducing ITV decrement at shearing; ③high ITV s between the crude and polymer solution can be lowered and high ITV decrement at shearing can be reduced by introducing into the polymer solution surfactant(s) or NaCl, NaOH; ④ of those flooding systems which create proper interfacial viscosity and low interfacial tension, high efficiency in oil displacement might be expected.

关 键 词：化学驱油体系 油水界面性质 界面粘度 大庆原油 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]