摘要
流体在漏斗粘度计中的流动规律及流变参数的确定 ,是目前国内外尚未很好解决的问题。根据位能与动能的变化关系 ,作者研究了在非恒定静压作用下幂律流体垂直下落的规律及流变参数与时间的关系 ,从而为计算漏斗粘度计中流体的流变参数提供了理论依据。文章采用流体静压头下降成比例的测量方法 ,记录其流动时间 ,简便地解决了幂函数求解指数的显函数方法。文章最后应用四种不同性能的液体 ,采用旋转粘度计实测的有关参量 ,与漏斗粘度计及旋转粘度的计算结果对比 ,说明了漏斗粘度计在一定条件下具有较高的测量精度 ,能较好地用于钻井液的流变学设计。
The flowing law of fluid and the determination of rheological parameters in funnel viscometer are not yet well settled up at home and abroad currently.According to the principle of mutual transformation between potential energy and kinetic energy,the vertically falling law of power law fluid by the action of unconstant static pressure and the relation between rheological parameter and time were studied,thus providing a theoretical basis for calculating the rheological parameters of fluid in funnel viscometer.In light of the measure way of fluid static pressure falling in proportion,the explicit function method of solving exponent by power function was simply and conveniently acquired through recording fluid flowing times.By applying four kinds of fluids and through contrasting the relevant parameters measured by rotary viscometer with the calculation results from funnel viscometer and rotary viscometer,it is indicated that the funnel viscometer is of relatively high measuring accuracy and can be well applied to the rheological design of drilling fluid.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2003年第4期47-50,共4页
Natural Gas Industry
基金
中国石油天然气集团公司"九五"重点科技攻关项目"四川地区复杂地质条件下深井
超深井技术"(编号96 0 0 2 4 )部分内容。
