中国石油大学学报（自然科学版）2025，Vol.49Issue(3)：132-140,9.DOI:10.3969/j.issn.1673-5005.2025.03.014
注采气井十字型和Y型井口装置冲蚀磨损规律
Erosion wear of cross-shaped and Y-shaped wellhead devices in injection and production wells
摘要
Abstract
In the process of natural gas production,the wellhead devices will suffer erosion wears due to high velocity flow of gas and sands.It is usually assuming that,for erosion wear studies,the gas flow rate is associated with the position prone to wear,but actually,the position prone to most serious wear is often different from that with the maximum natural gas flow rate.In this study,the wear behavior of wellhead devices with different geometric shapes was investigated via analyzing the e-rosion wear mechanisms,and a numerical model of erosion wear was established according to the field conditions of gas injec-tion and production wells.Based on classical erosion wear models,a theoretical model of erosion wear was presented consid-ering the change of particle attack angle.The relationships between gas production volume,natural gas flow velocity,erosion wear rate and the shape of wellhead devices were analyzed.The results show that the maximum gas flow rate in a Y-type well-head device is less than that in a cross-type wellhead device under the same gas production condition,but the amount of ero-sion wear in the easily worn location is greater than that in a cross-type wellhead device,which can provide a theoretical basis for selecting the cross-type wellhead device to reduce erosion wear.关键词
冲蚀磨损/采气井口/天然气流速/十字型井口装置/Y型井口装置Key words
erosion wear/production wellhead device/natural gas velocity/cross-shaped wellhead device/Y-shaped well-head device分类
能源科技引用本文复制引用
张宇昊,王向阳,冯福平,赵玉民,乔磊,常宇航..注采气井十字型和Y型井口装置冲蚀磨损规律[J].中国石油大学学报（自然科学版）,2025,49(3):132-140,9.基金项目
中国石油集团工程技术研究院有限公司项目(CPET201908) （CPET201908）
