渤海油田原油乳状液流变性研究  

STUDY ON THE RHEOLOGY OF THE CRUDE OIL EMULSION OF BOHAI OILFIELD

作　　者：刘立伟[1,2] 向问陶[1,2] 张健[1,2] 

机构地区：[1]中海油研究总院,北京东城100027 [2]海洋石油高效开发国家重点实验室,北京东城100027

出　　处：《西南石油大学学报（自然科学版）》2010年第6期143-146,共4页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：十一五国家863重点项目"渤海油田聚合物驱提高采收率技术研究"(2007AA090701);十一五国家科技重大专项"海上稠油高效开发新技术"(2008ZX05024)

摘　　要：实验考察了温度、含水率、剪切速率和聚合物浓度等因素对渤海油田原油乳状液流变性的影响,结果表明乳状液黏度随温度上升而下降,随含水率上升而上升,随剪切速率上升而下降,随聚合物浓度增加而上升。在0～55℃含水率高于40%时,乳状液体系呈现非牛顿流体特性,在55～70℃含水率低于40%时,乳状液体系呈现牛顿流体特性,渤海油田一号平台原油的转相点为含水率70%左右,二号平台原油的转相点为含水率60%左右。The rheology of crude oil emulsion of Bohai Oilfield is studied.Experimental results indicate that the viscosity values of the emulsion system decreases with the increase of temperature,rises with the increase of water cut,and drops with the increase of shear rate and grows with the increase of concentration of polymers.Moreover,the emulsion system is non-Newtonian fluid at a low temperature(0 ～ 55 ℃) and high water cut(﹥ 40%),the emulsion system is Newtonian fluid at high temperature(55 ～ 70 ℃) and low water cut(﹤ 40%).The reverse phase point of crude oil in NO.1 platform is about 70%,and NO.2 is about 60%.

关 键 词：原油乳状液 黏度 含水率 温度 剪切速率 流变性 聚合物 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]