钻探工程2026，Vol.53Issue(5)：37-43,7.DOI:10.12143/j.ztgc.2026.05.004
泥浆地面降温联合隔热钻杆调控特深钻探井筒泥浆温度的分析研究
Analysis of surface drilling fluid cooling combined with insulated drill pipe for wellbore temperature regulation in extra-deep drilling
摘要
Abstract
Ultra-high formation temperature poses a core challenge for extra-deep scientific drilling.To address the bottleneck where existing single cooling technologies fail to meet the temperature control requirements of a 13000 m wellbore,this study employs numerical simulation to evaluate the cooling performance of a combined approach integrating surface drilling fluid cooling and insulated drill pipe,with bottom-hole circulating temperature,maximum wellbore drilling fluid temperature,and return drilling fluid temperature as evaluation indices.The results indicate that applying the combined technology from 11000 to 13000 m can control the bottom-hole circulating temperature,maximum wellbore drilling fluid temperature,and outlet drilling fluid temperature at 285℃,291℃,and 63℃,respectively.Increasing the application length of insulated drill pipes can effectively reduce wellbore drilling fluid temperatures,and for every 0.1℃/100 m decrease in geothermal gradient,the bottom-hole circulating temperature and maximum wellbore drilling fluid temperature both decrease by 9℃.This research demonstrates that the combined technology can control key temperature parameters within a safe range for extra-deep drilling operations,providing a crucial theoretical basis for drilling engineering design and site selection,and offering technical support for the successful implementation of extra-deep scientific drilling projects.关键词
超万米科学钻探/井筒降温/隔热钻杆/泥浆地面降温/井筒泥浆温度/数值模拟Key words
extra-deep scientific drilling/wellbore cooling/insulated drill pipe/surface drilling fluid cooling/wellbore drilling fluid temperature/numerical simulation分类
天文与地球科学引用本文复制引用
郭威,钟秀平,贾瑞,冯壕辛,王元,张鹏宇,雷江,刘召,王晓初..泥浆地面降温联合隔热钻杆调控特深钻探井筒泥浆温度的分析研究[J].钻探工程,2026,53(5):37-43,7.基金项目
地球深部探测与矿产资源勘查国家科技重大专项(编号:2024ZD1000800、2024ZD1000803) （编号:2024ZD1000800、2024ZD1000803）
国家重点研发计划(编号:2022YFC2806402) （编号:2022YFC2806402）
