石油学报 ›› 2013, Vol. 34 ›› Issue (3): 574-579.DOI: 10.7623/syxb201303024

• 石油工程 • 上一篇    下一篇

搅拌测量法测定油水混合液流动特性

郁辰阳, 张劲军, 丁振军, 黄启玉   

  1. 中国石油大学油气管道输送安全国家工程实验室/城市油气输配技术北京市重点实验室 北京 102249
  • 收稿日期:2012-10-11 修回日期:2013-01-14 出版日期:2013-05-25 发布日期:2013-04-09
  • 通讯作者: 张劲军,男,1962年3月生,1998年获华东石油学院学士学位,1998年获石油大学(北京)油气储运专业博士学位,现为中国石油大学(北京)教授、博士生导师,主要从事易凝高黏原油流变性及输送技术研究。Email:zhangjj@cup.edu.cn
  • 作者简介:郁辰阳,男,1988年3月生,2010年获中国石油大学(北京)学士学位,现为中国石油大学(北京)油气储运工程专业硕士研究生,主要从事易凝高黏原油流变性及输送技术研究。Email:yu_chen_yang@126.com
  • 基金资助:

    国家自然科学基金重点项目(No.51134006)资助。

Measuring the flow behavior of oil-water mixtures with the stirring method

YU Chenyang, ZHANG Jinjun, DING Zhenjun, HUANG Qiyu   

  1. National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil & Gas Distribution Technology , China University of Petroleum, Beijing 102249, China
  • Received:2012-10-11 Revised:2013-01-14 Online:2013-05-25 Published:2013-04-09

摘要:

对于非均匀混合(乳化)、不稳定的油水两相体系,传统的黏度计无法测量其黏度。通过搅拌可以维持油水两相的均匀混合状态,并且搅拌轴的扭矩反映了流体的当量黏度。基于这一原理,建立了搅拌测量油水混合液流动性的方法,包括搅拌桨叶类型的选择、根据搅拌轴扭矩确定一定搅拌转速下的黏度、根据搅拌转速及流体黏度确定搅拌槽的平均剪切率。针对单相原油和油水混合液,将该方法的测量结果分别与同轴圆筒黏度计和试验环道的测试结果进行了对比,验证了其可靠性。应用该方法,对高含水油水混合液在不同温度和含水率条件下的流动性进行了测量,结果具有良好的规律性。

关键词: 搅拌测量法, 油水混合液, 流动性, 当量黏度, 剪切率

Abstract:

The traditional viscometer can not measure the viscosity of nonhomogeneous oil-water mixtures. Stirring may keep the mixture well blended and the torque exerted on impellers may reflect the equivalent viscosity of the fluid. Based on this principle, a stirring method of measuring the flow behavior of oil-water mixtures is developed, which includes selection of impeller types, calculation of the equivalent viscosity at certain stirring speed by using the shaft torque, and determination of the average shear rate by stirring speed and fluid viscosity. Results obtained by this approach from a single-phase crude oil or oil-water mixture are compared with those by concentric cylinder viscometer and test loop, respectively, a good agreement was achieved. Flow behaviors of high water-cut oil-water mixtures at different temperatures and with different water fractions were also investigated with this method, and the results showed good regularity.

Key words: stirring method, oil-water mixture, flow behavior, equivalent viscosity, shear rate

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