钻探工程2026，Vol.53Issue(5)：28-36,9.DOI:10.12143/j.ztgc.2026.05.003
泥浆地面降温调控特深钻探井筒泥浆温度的分析研究
Analysis of surface drilling fluid cooling for wellbore temperature regulation in extra-deep drilling
摘要
Abstract
To address the critical challenges in extra-deep drilling beyond 10000 meters,such as downhole tool failures and drilling fluid performance degradation caused by extreme high temperatures,this study investigates the efficacy of surface cooling of drilling fluid.A numerical model of wellbore-formation coupled heat transfer was established and validated against measured data from Well Yaha 501.Using the bottom-hole circulating temperature,maximum drilling fluid temperature,and return drilling fluid temperature as key evaluation metrics,simulation analysis was conducted to examine the temperature control performance of surface cooling at designed depths of 8000 m,11000 m,and 13000 m.The results demonstrate that implementing surface cooling reduced the bottom-hole circulating temperature and maximum drilling fluid temperature by 24.3℃&24.4℃,17.4℃&17.9℃,and 12.0℃&12.5℃,respectively.Without cooling,the return drilling fluid temperature after four circulation cycles reached 92.3℃,96.2℃,and 94.3℃.In contrast,with surface cooling,it stabilized at approximately 60℃.This study provides a theoretical basis and quantitative guidance for wellbore temperature control and safe operations in extra-deep drilling.关键词
特深钻探/泥浆地面降温/井底泥浆循环温度/井筒泥浆最高温度/出井泥浆温度Key words
extra-deep drilling/surface drilling fluid cooling/bottom-hole circulating temperature/maximum wellbore drilling fluid temperature/return drilling fluid temperature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):28-36,9.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）
