腐蚀挂片监测有效性主控因素分析

吴林霜, 于浩, 皇甫风云, 廖柯熹, 何国玺, 覃敏, 王敏安, 杨娜, 王茜钰, 李文静

doi:10.16577/j.issn.1001-1560.2024.0216

材料保护 >

2024 , Vol. 57 >Issue 9: 180 - 188

DOI: https://doi.org/10.16577/j.issn.1001-1560.2024.0216

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腐蚀挂片监测有效性主控因素分析

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¹西南石油大学石油与天然气工程学院； ²新疆油田公司百口泉采油厂； ³中国石化西南石油局

廖柯熹(1970-)，博士，教授，博士生导师，主要从事油气储运系统结构与安全、腐蚀与防护、检测评价、完整性管理、智能管道等方面的教学与科研工作，电话:028-83032320，E-mail:liaokexiswpi＠163.com

收稿日期: 2023-10-11

修回日期: 2024-02-26

录用日期: 2024-02-27

网络出版日期: 2024-11-14

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Analysis of the Main Controlling Factors for the Effectiveness of Corrosion Coupon Monitoring

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(1.Petroleum Engineering School， Southwest Peualeum University， Chengdu 610500， China；2.Baikouquan Oil Production Plant of Xinjiang Oilfeld Company， Karamay 830000， China；3.Sinopee Southwest China Petroleum Bureau，Chengdu 610095， China)

LIAO Kexi(1970-)， Ph.D.， Professor， Doctoral Supervisor， Research Focus: Structure and Safety of Oil and Gas Storage and Transportation Systems， Corrosion and Protection， Inspection and Evaluation， Integrity Management， and Intelligent Pipelines， Tel: 028-83032320， E-mail: liaokexiswpi＠163.com

Received date: 2023-10-11

Revised date: 2024-02-26

Accepted date: 2024-02-27

Online published: 2024-11-14

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摘要

为了分析挂片腐蚀监测有效性的主控因素，采用了多相流腐蚀环道(MPFC)设计覆盖站场工况的三因素三水平正交试验，并运用Fluent 有限元模拟分析验证正交试验。多相流腐蚀环道试验得到挂片平均腐蚀速率与温度、流速、安装深度呈正相关，出现挂片腐蚀速率均大于管壁腐蚀速率的现象。 Fluent 有限元仿真模拟中，挂片表面流速和绕流区域长度与挂片深度呈正相关。湍流动能沿水流方向(x 轴方向)呈现先快速增大、后逐步减小的变化趋势。除此之外，挂片的剪切力和腐蚀监测误差均与温度、流速、安装深度呈正相关。最终根据正交试验分析结果，得到挂片腐蚀监测有效性的主控因素排序为安装深度＞流速＞温度。

关键词： 腐蚀监测; 有效性; 主控因素; 腐蚀挂片; Fluent

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吴林霜, 于浩, 皇甫风云, 廖柯熹, 何国玺, 覃敏, 王敏安, 杨娜, 王茜钰, 李文静 . 腐蚀挂片监测有效性主控因素分析[J]. 材料保护, 2024 , 57(9) : 180 -188 . DOI: 10.16577/j.issn.1001-1560.2024.0216

Abstract

To analyze the main factors controlling the effectiveness of corrosion coupon monitoring，a three-factor，three-level orthogonal experiment covering field conditions was designed using a multiphase flow corrosion loop (MPFC).The orthogonal experiment was verified through Fluent finite element simulation analysis.The MPFC test results indicated that the average corrosion rate of the coupons was positively correlated with temperature，flow rate and installation depth，and it was observed that the corrosion rate of the coupons was higher than that of the pipe wall.In the Fluent finite element simulation，both the surface flow velocity on the coupon and the length of the recirculation zone were positively correlated with coupon depth.Turbulent kinetic energy along the flow direction (x-axis) showed a pattern of rapid increase followed by gradual decrease.Additionally， the shear force on the coupon and the corrosion monitoring error were positively correlated with temperature， flow rate and installation depth.Based on the results of the orthogonal experiment analysis， the controlling factors for the effectiveness of corrosion coupon monitoring were ranked as installation depth＞flow rate＞temperature.

Key words： corrosion monitoring; effectiveness; main control factors; corrosion coupon; Fluent

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