引用本文:刘志德,路民旭,肖学兰,谷 坛,张 雷,顾锡奎,等. 高含硫气田元素硫腐蚀机理及其评价方法[J]. 石油与天然气化工, 2012, 41(5): 495-498.
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高含硫气田元素硫腐蚀机理及其评价方法
刘志德1,2, 路民旭1, 肖学兰3, 谷 坛2, 张 雷1, 顾锡奎2, 闫 静2
1.北京科技大学材料科学与工程学院;2.中国石油天然气集团公司高含硫气藏开采先导试验基地腐蚀与防护实验室;3.中国石油西南油气田公司科技信息处
摘要:
在高含硫气田的开发过程中，往往会出现元素硫的沉积现象。元素硫一旦沉积以后，很有可能堵塞采输管线并造成管材的严重腐蚀，对气田的正常生产影响很大。介绍了高含硫气田元素硫的来源及其危害，在此基础上分析了元素硫腐蚀的机理，详细论述了元素硫的腐蚀评价方法，并分析了每种方法的适用范围及其特点，根据国内现状,提出了具体的认识和建议
关键词:  元素硫 腐蚀机理 腐蚀评价方法
DOI：
分类号:
基金项目:
Elemental sulfur corrosion mechanism and evaluation methods for high sour gas fields
Liu Zhide1,2, Lu Minxu1, Xiao Xuelan3, Gu Tan, Zhang Lei, Gu Xikui, Yan Jing
1.School of Materials Science and Engineering, Beijing University of Science and Technology, Beijing 100083, China;2.Corrosion and Protection Laboratory of High Sulfur Gas Exploitation Pilot Test Center, CNPC, Chengdu 610213, Sichuan, China;3.Science and Technology Information Department, Southwest Oil and Gasfield Company, Chengdu 610051, Sichuan, China
Abstract:
The elemental sulfur deposition often occurs in the exploitation of high sour gas field. The presence of elemental sulfur has been long known to corrode carbon steel extremely and may block the gathering lines. It will influence the normal production of gas fields. This paper introduces the source and damage of elemental sulfur (S) in sour gas field. Based on this information the corrosion evaluation method is stated in detail, while the application range of each corrosion evaluation method and their characteristics are analyzed, as well as the mechanism of elemental sulfur corrosion. In the end, the detailed understandings and suggestions according to the current situation in China are proposed.
Key words:  elemental sulfur, corrosion mechanism, corrosion evaluation method