钻探工程2024，Vol.51Issue(3)：125-130,6.DOI:10.12143/j.ztgc.2024.03.016
直连绳索取心钻杆分区热处理技术研究
Research on zone heat treatment technology of straight-connected wire-line core drill pipe
摘要
Abstract
In order to improve the performance of the wire-line core drill pipe,the stress,structural characteristics and traditional treatment technology of the straight-connected wire-line core drill pipe were analyzed,and a zonal heat treatment process was proposed.Through the heat treatment of both ends,the heat treatment performance of the middle pipe body area and the thread area at both ends was different,and the comprehensive strength of both ends was improved while the stress state of the thread part was improved.It can make the drill pipe string have both high strength and flexibility,and greatly improve the mechanical properties and wear resistance of the drill pipe.The quenching and tempering hardness HRC33～38 can increase the strength by 37.7%,the hardness by 40%and the impact resistance by 46.7%under the condition that the elongation of the pipe body is basically the same as that of normalizing and tempering.When the quenching and tempering hardness is HRC38～42,the wear resistance of the material is increased by 9.1%.It is more suitable for full hydraulic drilling rig construction and deep hole drilling,and provides the optimal scheme for drilling rig and drill pipe matching.关键词
直连绳索取心钻杆/分区热处理/综合机械性能/调质硬度/耐磨损Key words
straight-connected wire-line coring drill pipe/zone heat treatment/comprehensive mechanical properties/quenching and tempering hardness/wear-resistant分类
地质学引用本文复制引用
何蕙岚,李旭,王久全,李秋玥,丁向忠,谷孝宾,罗巍,吴树军,高科,赵研..直连绳索取心钻杆分区热处理技术研究[J].钻探工程,2024,51(3):125-130,6.基金项目
自然资源部复杂条件钻采技术重点实验室与金石钻探(唐山)股份有限公司2023开放课题 （唐山）
国家自然科学基金项目(编号:42172345) （编号:42172345）
吉林大学研究生创新基金资助项目(编号:2024CX103) （编号:2024CX103）
