Experimental investigation of erosion rate for gas-solid two-phase flow in 304 stainless/L245 carbon steel  

作　　者：Bingyuan Hong Yanbo Li Xiaoping Li Gen Li ong Huang Shuaipeng Ji Weidong Li Jing Gong Jian Guo 

机构地区：[1]National-Local Joint Engineering Laboratory of Harbor Oil&Gas Storage and Transportation Technology,Zhejiang Provincial Key Laboratory of Petrochemical Pollution Control,Zhejiang Ocean University,Zhoushan,316022,PR China [2]National Engineering Laboratory for Pipeline Safety,MOE Key Laboratory of Petroleum Engineering,Beijing Key Laboratory of Urban Oil and Gas Distribution Technology,China University of Petroleum-Beijing,Fuxue Road No.18,Changping District,Beijing,102249,PR China [3]CNOOC Research Institute Co.Ltd,Beijing,100028,PR China [4]PipeChina North Pipeline Company,LangFang,065000,PR China [5]College of Chemical Engineering,Fuzhou University,Fuzhou,350108,PR China

出　　处：《Petroleum Science》2022年第3期1347-1360,共14页石油科学（英文版）

基　　金：supported by the Zhejiang Province Key Research and Development Plan(2021C03152);Zhoushan Science and Technology Project(2021C21011);Industrial Project of Public Technology Research of Zhejiang Province Science and Technology Department(LGG18E040001);Scientific Research Project of Zhejiang Province Education Department(Y20173854)

摘　　要：Erosion is one of the most concerning issues in pipeline flow assurance for the Oil&Gas pipeline industries,which can easily lead to wall thinning,perforation leakage,and other crucial safety risks to the steady operation of pipelines.In this research,a novel experimental device is designed to investigate the erosion characteristics of 304 stainless and L245 carbon steel in the gas-solid two-phase flow.Regarding the impacts on erosion rate,the typical factors such as gas velocity,impact angle,erosion time,particle material and target material are individually observed and comprehensive analyzed with the assistance of apparent morphology characterized via Scanning Electron Microscope.Experimental results show that the severest erosion occurs when the angle reaches approximate 30°whether eroded by type I or type II particles,which is observed in both two types of steel.Concretely,304 stainless steel and L245 carbon steel appear to be cut at low angles,and impacted at high angles to form erosion pits.In the steady operational state,the erosion rate is insensitive to the short erosion time and free from the influences caused by the“erosion latent period”.Based on the comparison between experimental data and numerical results generated by existing erosion models,a modified model with low tolerance(<3%),high feasibility and strong consistency is proposed to make an accurate prediction of the erosion in terms of two types of steel under various industrial conditions.

关 键 词：Gas-solid flow EROSION 304 stainless L245 carbon steel Erosion model 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]