石油化工安全环保技术 ›› 2025, Vol. 41 ›› Issue (2): 23-26.

• 事故分析与预防 • 上一篇    

油田分离器不同部位腐蚀行为研究

杨济源   

  1. 中国石油辽河油田公司安全环保技术监督中心,辽宁 盘锦 124010
  • 收稿日期:2024-03-11 接受日期:2025-03-15 出版日期:2025-04-20 发布日期:2025-05-08
  • 作者简介:杨济源,男, 2014 年毕业于天津理工大学机械工程及自动化专业,现从事生产经营、 QHSE 管理等工作,工程师。 E-mail:1027325413@qq.com

On Corrosion Behavior of Different Parts of Oil Field Separators

Yang Jiyuan   

  1. Safety and Environment Protection Technology Supervision Center of PetroChina Liaohe Oilfield Company, Panjin, Liaoning, 124010
  • Received:2024-03-11 Accepted:2025-03-15 Online:2025-04-20 Published:2025-05-08

摘要: 油田分离器是实现油田采出液高效三相分离的关键设施。然而,由于原油成分的复杂性,分离器内部不可避免地存在腐蚀问题。因此,基于油田分离器内部环境特点和腐蚀现状,通过腐蚀速率、腐蚀形貌和开路电位确定了分离器不同部位的腐蚀行为。结果表明,在水相和油相环境中金属主要表现为全面腐蚀特征,存在少量局部腐蚀点,而在沉积相环境中金属表现为点蚀特征,并且腐蚀程度随时间推移加速发展。

关键词: 油田分离器, 原油, 多相采出液, 腐蚀

Abstract: Oil field separator is a key facility to realize efficient three-phase separation of oil field produced liquid. However, due to the complexity of crude oil composition, there is an inevitable problem of corrosion inside the separator. Therefore, based on the internal environmental characteristics and corrosion status of the oil field separator, the corrosion behavior of different parts of the separator is determined by corrosion rate, corrosion morphology and open circuit potential. The results show that in the aqueous and oil-phase environment, the metal mainly exhibits the characteristics of comprehensive corrosion with a few local corrosion points, while in the sedimentary phase environment, the metal exhibits the characteristics of pitting corrosion and the corrosion degree accelerates with time.

Key words: oil field separator, crude oil, multiphase produced liquid, corrosion