THE SUBMODELING METHOD ANALYSIS ON POST-BUCKLING WEAR PREDICTION OF COMPRESSION COILED TUBING IN WELLBORE (MT)

LI Gang; SUN GuoHao; LIN Liang; YUE QianBei; ZHANG Qiang; WANG Gang

doi:10.16579/j.issn.1001.9669.2023.05.023

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THE SUBMODELING METHOD ANALYSIS ON POST-BUCKLING WEAR PREDICTION OF COMPRESSION COILED TUBING IN WELLBORE (MT)

更新时间：2023-11-16

- THE SUBMODELING METHOD ANALYSIS ON POST-BUCKLING WEAR PREDICTION OF COMPRESSION COILED TUBING IN WELLBORE (MT)
- Journal of Mechanical Strength Issue 5, Pages: 1181-1191(2023)
- 作者机构：
  
  1. 大庆油田有限责任公司井下作业分公司
  2. 东北石油大学机械科学与工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2023.05.023
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LI Gang, SUN GuoHao, LIN Liang, et al. THE SUBMODELING METHOD ANALYSIS ON POST-BUCKLING WEAR PREDICTION OF COMPRESSION COILED TUBING IN WELLBORE (MT). [J]. Journal of Mechanical Strength (5):1181-1191(2023)
DOI：

LI Gang, SUN GuoHao, LIN Liang, et al. THE SUBMODELING METHOD ANALYSIS ON POST-BUCKLING WEAR PREDICTION OF COMPRESSION COILED TUBING IN WELLBORE (MT). [J]. Journal of Mechanical Strength (5):1181-1191(2023) DOI： 10.16579/j.issn.1001.9669.2023.05.023.

摘要

针对井下管柱发生屈曲后导致管柱磨损加剧问题，基于子模型法，建立受压屈曲管柱与井筒接触磨损模型，引入Archard模型计算管柱的磨损深度，同时采用移动接触边界节点法描述管柱表面材料的去除过程，避免了网格畸变引起计算不收敛问题，并预测了管柱在不同受压载荷及环空间隙的磨损量。结果表明，管柱发生正弦屈曲，磨损部位较少，且受压载荷及环空间隙对管柱磨损影响较小。管柱发生螺旋屈曲，磨损部位较多且连续，受压载荷及环空间隙对管柱磨损影响较大。为井筒内受压管柱屈曲后的磨损预测提供一种计算方法。

Abstract

Aiming at the problem of aggravated wear of coiled tubing caused by buckling in underground, a contact wear model between compression buckling coiled tubing and wellbore was established based on submodel method. Archard model was introduced to calculate the wear depth of coiled tubing. The removal process of material on the surface of coiled tubing was described by moving contact boundary node method to avoid mesh distortion.The wear of various compressive loads and annulus clearance are predicted.The results show that the coiled tubing is subjected to sinusoidal buckling and the wear parts are few, and the compression load and annular clearance have little influence on the wear of the coiled tubing.There are many and continuous wear parts in coiled tubing with spiral buckling, and the compression load and annulus clearance have great influence on the wear of coiled tubing This paper provides a calculation method for quantitative prediction of wear of buckling coiled tubing in wellbore.

关键词

正弦屈曲螺旋屈曲Archard模型有限元分析磨损预测

Keywords

Sinusoidal bucklingHelical bucklingArchard modelFinite element analysisWear prediction

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