幂律钻井液管流的f因子  

Determining the Fanning friction factors of power-law drilling fluid flow in pipe and annular

作　　者：展宝真[1] 朱法锒[2] 

机构地区：[1]中原油田钻井集团公司 [2]胜利油田职工大学

出　　处：《钻井液与完井液》1999年第5期4-6,共3页Drilling Fluid & Completion Fluid

摘　　要：依据幂律流体层流运动的基本规律和修正的Blasius紊流阻力公式,利用当量直径和当量雷诺数的概念,推导出两种流态(层流和紊流)、三种过流断面(圆形、同心环空及偏心环空)六种不同形式f因子的数学表达式,为幂律钻井液管流摩阻的实用计算提供了理论依据和简捷方法。Based on the basic laws of laminar flow of power-law fluid and Blasius' formula of turbulent drag, six different Fanning friction factors of two flow types (laminar and turbulent flow), and three flow cross sections (circular, concentric and eccentric annular) are inferred by the concepts of equivalent diameter and Reynolds. This is helpful in counting the friction drag of power-law drilling fluid in drill pipe and annu- ?lar.

关 键 词：幂律钻井液管流 f因子 石油钻井 幂律流体 管内流动 环形空间流动 层流紊流 摩擦系数 

分 类 号：TE254.3[石油与天然气工程—油气井工程]