China Mechanical Engineering ›› 2025, Vol. 36 ›› Issue (12): 2927-2935.DOI: 10.3969/j.issn.1004-132X.2025.12.015

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Investigation of Factors Influencing Expandable Tubes Milling Based on SPH-FEM Coupling Algorithms

Min LUO(), Congjian HUANG, Qiaozheng LI(), Tingting XU, Yanbo FU   

  1. College of Mechanical Science and Engineering,Northeast Petroleum University,Daqing,Heilongjiang,163318
  • Received:2025-02-04 Online:2025-12-25 Published:2025-12-31
  • Contact: Qiaozheng LI

基于光滑粒子流体动力学-有限元法耦合算法的膨胀管磨铣效果影响因素研究

罗敏(), 黄聪剑, 李巧珍(), 徐亭亭, 付彦博   

  1. 东北石油大学机械科学与工程学院, 大庆, 163318
  • 通讯作者: 李巧珍
  • 作者简介:罗敏,女,1968年生,教授、博士研究生导师。研究方向为杆管柱力学分析。E-mail:jiayin5@sina.com
    李巧珍*(通信作者),女,1985年生,副教授。研究方向为石油石化装备有限元分析。E-mail:2392988587@qq.com
  • 基金资助:
    大庆市科技指导项目(zd-2023-33);东北石油大学国家基金培育基金(2022GPL-11);黑龙江省自然科学基金(LH2021E011)

Abstract:

Under formation pressure, expandable tubes deform, restricting the wellbore diameter and causing stuck drilling, which affected production. Milling was required to remove these deformed tubes, but the milling results were influenced by multiple factors. The mill, expandable tube, casing, and cement sheath were taken as research objects. Considering the geometric nonlinearity of expandable tube milling and the contact nonlinearity between the expandable tubes and abrasive particles, a nonlinear dynamics model and numerical calculation method for expandable tube milling were established using the SPH-FEM coupling algorithms. Comparison with literature data verified the model, showing an average grinding force error of 8.84%. The effects of milling dimensions, abrasive particle shape, and surfacing material on the milling performance were examined. Results show that the milling depth should not exceed 0.6 mm; the milling thickness should not exceed 0.8 mm; dodecagonal prism particles provide the best performance; and YG8 alloy is the most suitable surfacing material.

Key words: expandable tube, milling, smoothed particle hydrodynamics-finite element method (SPH-FEM)coupling algorithm, dynamics, nonlinear contact

摘要:

在地层压力作用下膨胀管会发生变形,如限制井径易引发卡钻,从而影响生产,需磨铣去除膨胀管,但磨铣效果受多种因素影响。以磨鞋、膨胀管、套管和水泥环为研究对象,考虑膨胀管磨铣的几何非线性、膨胀管与磨粒之间的非线性接触特性,采用光滑粒子流体动力学-有限元法(SPH-FEM)耦合算法建立了膨胀管磨铣非线性动力学模型和数值计算方法。通过与文献数据对比验证,得到磨削过程中磨削力平均误差为8.84%。研究磨削尺寸、磨粒形状、铺焊材料三种影响因素对磨铣效果的影响,结果表明:磨削深度不宜超过0.6 mm;磨削厚度不宜超过0.8 mm;十二棱柱磨铣效果最佳;YG8合金宜作为铺焊材料。

关键词: 膨胀管, 磨铣, SPH-FEM耦合算法, 动力学, 非线性接触

CLC Number: