流体机械2025，Vol.53Issue(11)：17-24,51,9.DOI:10.3969/j.issn.1005-0329.2025.11.003
钻井液幂律流体在螺旋管内流动传热特性试验研究
Experimental study on flow and heat transfer characteristics of drilling fluid power-law fluid in helical tubes
摘要
Abstract
Aiming at the special flow and heat transfer issues of drilling fluid power-law fluid,experimental testing methods were used to study the flow and heat transfer characteristics of water-based drilling fluid in helical tubes,where the Reynolds number of drilling fluid flow ranged from 727 to 6 810,and the heat flux density ranged from 4 849 to 14 546 W/m2.The results show that the convective heat transfer coefficient and pressure drop of drilling fluid power-law fluid both increase with Re,while the heating heat flux density has a small impact on the heat transfer coefficient and pressure drop;the obtained heat transfer Nu of drilling fluid power-law fluid significantly deviates from the predicted values based on empirical correlations established for Newtonian fluids;the friction factor f aligns well with the predicted values of existing empirical correlations,with relative deviations within 18.11%;based on fitting experimental test data,an empirical correlation for heat transfer Nu of drilling fluid power-law fluid was obtained,with relative deviations between predicted and experimental values less than 10%.The research results can provide references for the design of efficient and compact cooling heat exchange devices for drilling fluid power-law fluid.关键词
钻井液/幂律流体/螺旋管/换热系数/摩擦阻力Key words
drilling fluid/power-law fluid/helical tube/heat transfer coefficient/frictional resistance分类
能源科技引用本文复制引用
ZHANG Guilei,MA Chunliang,XIAO Miao,SHI Chenghui,YUWEN Yixuan,LI Xunfeng..钻井液幂律流体在螺旋管内流动传热特性试验研究[J].流体机械,2025,53(11):17-24,51,9.基金项目
国家科技重大专项(2025ZD1403200) （2025ZD1403200）
中海石油(中国)有限公司科技项目(KJZH-2023-2304) （中国）
