超声波调控下聚合物缓蚀剂对金属腐蚀行为的作用机制研究

doi:10.11902/1005.4537.2025.241

中国腐蚀与防护学报

2026, Vol. 46

Issue (3): 883-892 CSTR: 32134.14.1005.4537.2025.241 DOI: 10.11902/1005.4537.2025.241

研究报告

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超声波调控下聚合物缓蚀剂对金属腐蚀行为的作用机制研究

高金彪¹^,²^,³, 刘怡¹, 赵海波¹^,³, 高清河⁴, 吴禹沈², 于鑫⁴(

)

^1.东北石油大学地球科学学院大庆 163318
^2.中国科学院声学研究所声学与海洋信息全国重点实验室北京 100190
^3.大庆油田勘探开发研究院大庆 163712
^4.大庆师范学院黑龙江省油田应用化学与技术重点实验室大庆 163712

Mechanistic Investigation in Controlling Metal Corrosion by Synegistic Effect of Ultrasonic and Polymer Corrosion Inhibitors

GAO Jinbiao¹^,²^,³, LIU Yi¹, ZHAO Haibo¹^,³, GAO Qinghe⁴, WU Yushen², YU Xin⁴(

)

^1.Earth Science College, Northeast Petroleum University, Daqing 163318, China
^2.State Key Laboratory of Acoustics and Marine Information, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
^3.Exploration and Development Research Institute of PetroChina, Daqing Oil Field Co. Ltd., Daqing 163712, China
^4.Heilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology, Daqing Normal University, Daqing 163712, China

引用本文:

高金彪, 刘怡, 赵海波, 高清河, 吴禹沈, 于鑫. 超声波调控下聚合物缓蚀剂对金属腐蚀行为的作用机制研究[J]. 中国腐蚀与防护学报, 2026, 46(3): 883-892.
Jinbiao GAO, Yi LIU, Haibo ZHAO, Qinghe GAO, Yushen WU, Xin YU. Mechanistic Investigation in Controlling Metal Corrosion by Synegistic Effect of Ultrasonic and Polymer Corrosion Inhibitors[J]. Journal of Chinese Society for Corrosion and protection, 2026, 46(3): 883-892.

全文: PDF(11677 KB) HTML

摘要:

针对油气田开发过程中金属管道在聚合物驱油技术环境下因腐蚀引发的安全隐患问题，系统探究了超声波与聚合物缓蚀剂协同作用对20#碳钢在聚丙烯酰胺介质中腐蚀行为的影响机制。目前研究多局限于聚驱采油或超声波的单因素作用分析，而超声波与聚合物协同调控金属腐蚀行为的机制尚不明确。该实验研究了超声波调控下聚合物缓蚀剂对20#碳钢在聚丙烯酰胺介质中腐蚀行为的影响机理；采用动电位极化测试、电化学阻抗谱(EIS)、X射线衍射(XRD)和扫描电子显微镜(SEM)等表征手段，研究了不同超声功率(0%~100%)对聚丙烯酰胺溶液流变特性及金属电化学腐蚀行为的作用规律。实验结果表明，当超声功率为25%P时缓蚀效果最优，腐蚀电流密度显著降低。超声的空化效应降低溶液粘度、抑制阴极氧还原反应进程、调控金属阳极溶解及促进非导电腐蚀产物的生成。该研究为油气输送管道腐蚀防护提供了新的技术思路，对延长管线服役寿命具有重要工程意义。

关键词 ：金属腐蚀, 超声波, 电化学, 聚丙烯酰胺, 空化效应

Abstract：

This study investigated how ultrasound and polymer corrosion inhibitors affect the rusting of 20# carbon steel in a polyacrylamide solution, focusing on the safety issues related to metal pipeline rust during oil and gas development in a polymer flooding environment. Contemporary research primarily focuses on examining individual factors in polymer flooding or ultrasound. In contrast, the mechanism by which ultrasound and polymer synergistically regulate the corrosion behavior of metals remains ambiguous. The experiment examined the mechanism by which a polymer corrosion inhibitor affects the corrosion behavior of 20# carbon steel in a polyacrylamide medium under ultrasonic modulation. Characterization techniques, including kinetic potential polarization tests, electrochemical impedance spectroscopy (EIS), X-ray diffraction (XRD), and scanning electron microscopy (SEM), were employed to analyze the impact of varying ultrasonic power (0%-100%) on the rheological properties of the polyacrylamide solution and the electrochemical corrosion behavior of the metals. The experimental findings indicate that the corrosion inhibition effect is optimal at an ultrasonic power of 25%, resulting in a substantial reduction in corrosion current density. The cavitation effect of ultrasonic diminishes solution viscosity, suppresses the cathodic oxygen reduction reactions, regulates the anodic dissolution of metals, and facilitates the formation of non-conductive corrosion products. This paper proposes innovative technical concepts for the corrosion protection of oil and gas transmission pipelines, which are of great engineering significance for extending their service life.

Key words： metallic corrosion ultrasound electrochemistry polyacrylamide acoustic cavitation

收稿日期: 2025-07-28 32134.14.1005.4537.2025.241

ZTFLH:

TG174

基金资助:中国科学院声学研究所声学与海洋信息全国重点实验室开放课题(SKLA202412);东北石油大学国家基金培育基金(2024GPL-01);东北石油大学人才引进科研启动经费(2023KQ03)

通讯作者: 于鑫，E-mail：yu2604797339@163.com，研究方向为腐蚀与防护

Corresponding author: YU Xin, E-mail: yu2604797339@163.com

作者简介: 高金彪，男，1995年生，特任副教授

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https://www.jcscp.org/CN/10.11902/1005.4537.2025.241 或 https://www.jcscp.org/CN/Y2026/V46/I3/883

表1 超声作用1 min后的极化曲线拟合参数

图1 金属在不同超声功率作用下浸泡5 d后的动电位极化曲线

图2 腐蚀120 h后不同电解液环境下的EIS谱图

图3 EIS等效电路图

图4 不同超声功率下不同时间节点的极化电阻

图5 不同体系样品浸泡5 d后的XRD图谱

图6 金属试样微观腐蚀形貌

图7 超声波辅助聚合物缓蚀-多尺度作用机制示意图

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