流体机械2025，Vol.53Issue(4)：1-8,8.DOI:10.3969/j.issn.1005-0329.2025.04.001
高压磨料射流冲蚀储气库区老井落鱼成孔特征研究
Perforation characteristics of lost fish in old gas storage wells by high-pressure abrasive jet erosion
摘要
Abstract
To address the effective sealing of lost fish boreholes in old wells within gas storage zones,a high‑pressure abrasive jet erosion perforation method was developed.Experimental studies on abrasive jet erosion of lost fish drill pipes were conducted,with perforation time and hole diameter as evaluation indicators.The effects of jet parameters and abrasive parameters on perforation performance were analyzed,and the maximum standoff distance diagrams under different jet pressures were obtained.Results show that different abrasives exhibit varying perforation efficiencies:silicon carbide>ceramic particles>quartz sand,with silicon carbide recommended for its higher hardness.Under the same jet pressure,abrasive particle size(40~60 mesh)and volume fraction(6%~8%)significantly affect perforation quality.Reducing standoff distance and increasing pump pressure are critical for improving efficiency.Erosion efficiency decreases with increasing jet angle(not exceeding 25°).Abrasive jet perforation effectiveness declines with standoff distance,with maximum standoff distances predicted between 24.7~42.5 cm at 10~30 MPa.The method can perforate ⌀127 mm drill pipe bodies in 2~4 minutes and tool joints in 10~12 minutes,creating holes of 11~26.9 mm diameter.This study validates the feasibility of high‑pressure abrasive jet erosion for lost fish perforation,providing theoretical and methodological guidance for sealing complex old wells in gas storage.关键词
储气库/老井/落鱼/磨料射流/成孔Key words
gas storage/old wells/lost fish/abrasive jet/perforation分类
石油、天然气工程引用本文复制引用
高玮,黄中伟,武晓光,高清春,姚建蓬,赵炎..高压磨料射流冲蚀储气库区老井落鱼成孔特征研究[J].流体机械,2025,53(4):1-8,8.基金项目
国家自然科学基金创新研究群体基金项目(52421002) （52421002）
中国石油大学(北京)科研基金项目(2462023BJRC003) （北京）
