天然气与石油2026，Vol.44Issue(2)：78-84,7.DOI:10.3969/j.issn.1006-5539.2026.02.010
基于钻柱力学的钻井托压抑制方法研究
Research on suppression methods for drilling support pressure based on drill string mechanics
摘要
Abstract
To address the issue of drilling support pressure and enhance drilling efficiency,this study uses whole well drill string dynamics theory and multi-body dynamics software to investigate the suppressive effects of stabilizer configuration on drilling support pressure behavior.Multi-body dynamics software was utilized to establish dynamic analysis models for drilling tools including roller bits,stabilizers,and drill rods.Based on formation lithology and dynamics theory,dynamic equations for mechanical drilling speed and drilling pressure fluctuations were established.The effectiveness of the analysis model was validated using logging data from a well in Dabei.The results show that the simulated data closely reflects the logging data,affirming the model's effectiveness.Configuring stabilizers can effectively suppress drilling support pressure phenomena,whereas altering the outer diameter of stabilizers does not mitigate drilling support pressure behavior.When properly configured,placing a single stabilizer away from the drill bit can increase drilling pressure by approximately 30%.Configuring dual stabilizers can reduce fluctuations in drill bit pressure and increase drilling pressure by approximately 30%,thereby effectively suppressing drilling support pressure behavior.For the target well,an optimized plan was proposed to enhance support pressure at the drill bit by 46.5%,effectively resolving the drilling support pressure issue.The study results provide theoretical support and reference for addressing drilling support pressure on site.关键词
全井钻柱力学/钻井托压/钻具组合/扶正器/动力学仿真Key words
Whole well drilling string mechanics/Drilling support pressure/Drilling tool assembly/Stabilizer/Dynamic simulation引用本文复制引用
王雷,于富盛,樊思成,李勇,韩新明..基于钻柱力学的钻井托压抑制方法研究[J].天然气与石油,2026,44(2):78-84,7.基金项目
中国石油天然气集团有限公司关键核心技术攻关项目"复杂结构井钻完井工程技术与装备研制"(2023ZZ27) （2023ZZ27）
中国石油天然气集团有限公司关键核心技术攻关项目"超长水平井连续油管牵引器研制"(2024ZG43) （2024ZG43）
