钻探工程2024，Vol.51Issue(1)：31-39,9.DOI:10.12143/j.ztgc.2024.01.005
多分支水平井岩屑运移模型与实验研究
Model and experimental research of cuttings transport in multi-branch horizontal wells
摘要
Abstract
With the technological development of multi-branch horizontal wells and complex structural wells,hole cleaning technology is facing new difficulties and challenges.The problems urgent to be resolved are how to solve the problem of cuttings-bed under complex geological conditions and complex well type conditions,to help judge and solve the complex situation downhole.The cuttings transport model is adopted based on the mechanism of cuttings transport.The indoor visualization of cuttings transport experiments was conducted to analyzed the cuttings transport patterns.The results show that the critical velocity of drill cutting is the highest at the well slope angle of 36°,and the drill cutting is most difficult to be carried.The trend of model predicted was validated by comparison with experimental results,and a good accordance was obtained.Its field application also indicates a good agreement between prediction and actual situations,which validated the reliability of this model.The model and experiments are of reference significance for borehole cleaning of large displacement horizontal wells.关键词
多分支水平井/岩屑运移/临界流速/井斜角/井眼清洁Key words
multi-branch horizontal wells/cuttings transport/critical velocity/well slope angle/well bore cleaning分类
天文与地球科学引用本文复制引用
薛曼,侯继武,李智,李子硕,石耀军,李华,蒋国盛,杨现禹,蔡记华..多分支水平井岩屑运移模型与实验研究[J].钻探工程,2024,51(1):31-39,9.基金项目
两淮煤田地面定向多分支水平井高效钻进技术体系研究 （）
