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1.长江大学 机械工程学院,荆州 434023
2.中国石油长庆油田分公司第四采气厂,西安 710021
贾澳银,男,1999年生,湖北襄阳人,长江大学机械工程学院在读硕士研究生;主要研究方向为石油钻采管柱力学;E-mail:210385175@qq.com。
网络出版日期:2024-12-28,
收稿日期:2024-05-13,
修回日期:2024-06-02,
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贾澳银,钱利勤,王杰等.含腐蚀缺陷套管剩余寿命预测评价[J].机械强度,DOI:10.16579/j.issn.1001.9669.XXXX.XX.001.
JIA Aoyin,QIAN Liqin,WANG Jie,et al.Prediction and evaluation of residual life of casing with corrosion defects[J].Journal of Mechanical Strength,DOI:10.16579/j.issn.1001.9669.XXXX.XX.001.
目的
2
随着油田开发进入中后期,套损情况越来越严重,特别是腐蚀缺陷引起套管发生破漏、缩径、弯曲和错断等事故,造成无法安全作业,因此亟需对老油田套管进行剩余寿命和安全评估。
方法
2
基于von Mises等效应力屈服准则,建立含腐蚀缺陷套管的三维有限元计算模型,分析腐蚀坑深度和角度对套管应力影响规律。运用离子群优化-高斯过程回归(Particle Swarm Optimization-Gaussian Process Regression, PSO-GPR)算法,建立套管腐蚀速率预测模型。
结果
2
结合两种模型完成了含腐蚀缺陷套管剩余寿命评价,对油田现场含腐蚀缺陷套管预防和治理具有理论指导意义。
Objective
2
As oil field development progresses into the middle and later stages
casing damage becomes increasingly severe
particularly incidents such as leakage
reduction in diameter
bending
and fractures caused by corrosion defects
leading to unsafe operations. Therefore
there is an urgent need to conduct residual life and safety evaluations of old oil field casings.
Methods
2
Based on the von Mises equivalent stress yield criterion
a three-dimensional finite element calculation model of casings containing corrosion defects was established to analyze the influence law of corrosion pit depth and angle on casing stress distribution. The particle swarm optimization-gaussian process regression (PSO-GPR) algorithm was employed to construct a predictive model for casing corrosion rates.
Results
2
Integration of the two models
the evaluation of the residual life of casings with corrosion defects was completed
it has theoretical guidance significance for the prevention and management of corroded casings in oil field operations.
套管腐蚀缺陷有限元分析PSO-GPR腐蚀速率剩余寿命
Casing corrosion defectFinite element analysisPSO-GPRCorrosion rateResidual life
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