石油学报 ›› 1994, Vol. 15 ›› Issue (4): 86-95.DOI: 10.7623/syxb199404012

• 油田开发 • 上一篇    下一篇

毛细管狭缝流变仪的测量原理和应用

黄逸仁   

  1. 西南石油学院
  • 收稿日期:1992-12-09 修回日期:1994-02-01 出版日期:1994-12-25 发布日期:2013-07-08
  • 作者简介:黄逸仁,1935年生.1958年毕毕业于北京石油学院采油工程专收现为西南石油学院石油工程系副教授通讯处:四川省南充市.邮政编码:637001

PRINCIPLE OF MEASUREMENT IN A CAPILLARY NARROW RHEOMETER AND ITS APPLICATION

Huang Yiren   

  1. Southwest Petroleum Institute
  • Received:1992-12-09 Revised:1994-02-01 Online:1994-12-25 Published:2013-07-08

摘要: 介绍一种能自动连续测量的毛细管狭缝流变仪的原理和结构,该流变仪具有微机自控和数据采集处理系统,适用于牛顿液体和石油钻井泥浆等非牛顿流体流变性能的在线和离线测量.文中推导出毛细管狭缝流变仪测量适用于罗伯逊一斯蒂夫模式、幂律模式、宾汉模式的流变参数、剪切应力、剪切速率和雷诺数的有关计算公式.通过实测资料证明,该流变仪测量精度较高,自动测量相对误差≤3%,手动测量相对误差≤1%,具有广泛的实用性.

关键词: 流变仪, 毛细管, 非牛顿流体, 测量应用

Abstract: This paper presents the principle and structure of a capillary narrow rheometer whichcan measure the rheology of any fluid automaticlly and continuously.The rheometer is con-trolled automatically by a microcomputer which can acquisite and process data obtained.It will be applied to on-line and off-line measurements for Newtonian fluid and non-Newtonianfluid such as rheological properties of drilling fluids mud etc.This paper deduces rheologicalparameters,shear stress,shear rate and Reynolds' number used in the formula of capillarynarrow rheometer measurements for Robertson Stiff,Index and Bingham model.The mea-sured data proves that the rheometer's measurements are precise,with a relative error of lessthan 3% by automatic measurements,and a relative error of less than 1% by manual opera-tion.

Key words: rheometer, capillary, non-Newt+nian, fluid, measurement, application