Experimental study of the critical sand starting velocity of gas-watersand flow in an inclined pipe

作     者：Rui-Yao Zhang Jun Li Hong-Wei Yang Geng Zhang Xi-Ning Hao Peng-Lin Liu Rui-Yao Zhang;Jun Li;Hong-Wei Yang;Geng Zhang;Xi-Ning Hao;Peng-Lin Liu

作者机构：School of Petroleum EngineeringChina University of Petroleum(Beijing)Beijing102200China School of Petroleum EngineeringChina University of Petroleum(Beijing)Karamay834000XinjiangChina CNOOC Research Institute Co.Ltd.Beijing100028China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2022年第19卷第6期

页      面：2981-2994页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 082002[工学-油气田开发工程] 

基　　金：supporting by the Youth Program of National Natural Science Foundation of China(52104012) the China Postdoctoral Science Foundation(2021M693494) the Key Program of the National Natural Science Foundation of China(51734010) the Key Natural Science Projects of Scientific Research Plan in Colleges and Universities of Xinjiang Uygur Autonomous Region(XJEDU2021I028) the Strategic Cooperation Technology Projects of CNPC and CUPB(ZLZX2020-01-01) 

主　　题：Three-phase flow Critical sand starting velocity Flow pattern Sand migration Gas void fraction Hole deviation angles Sand concentration 

摘      要：The purpose of this paper is to study the critical sand starting velocity and transformation law of flow pattern based on gas-water-sand three-phase flow in an inclined ***,the indoor simulation experiment system of gas-water-sand three-phase flow was used to test the conversion law of flow pattern based upon the different gas void ***,the influence of slug bubbles on sand migration was investigated according to distinctive hole deviation angles,gas void fraction and sand ***,the critical sand starting velocity was tested based on dissimilar hole deviation angles,gas void fraction,sand concentration and sand particle size,and then the influence of the abovementioned key parameters on the sand starting velocity was debated based on the force analysis of the sand *** experimental results illustrated that when the gas void fraction was less than 5%,it was bubbly *** it increased from 5%to 30%,the bubbly flow and slug flow *** it was between 30%and 50%,the slug flow and agitated flow *** it reached 50%,it was agitated *** that the hole deviation angle was 90°,the phenomenon of overall migration and wavelike migration on the surface of sand bed was *** the contrary,the phenomenon of rolling and jumping migration was *** critical sand starting velocity was positively correlated with the hole deviation angle and sand particle size,but negatively associated with the gas void fraction and sand *** research can provide a certain reference for sand-starting production in the field of petroleum engineering.