高温高酸性气田井下缓蚀剂的缓蚀性能
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- 英文论文题名：Corrosion Inhibition Proporties of Inhibitor in Gas Well Downhole of High Sulfur and High Temperature Gas Field
- 论文作者：黄雪松 ; 董猛 ; 唐光德 ; 刘月学 ; 赵文宁 ; 张大同 ; 刘烈炜
- 英文论文作者：HUANG Xue-song ; DONG meng ; TANG Guang-de ; LIU Xue-yue ; ZHAO Wen-yu ; ZHANG Da-tong ; LIU Lie-wei ; Zhongyuan Petroleum Exploration Bureav ; SINOPEC ; Huazhong University of Science and Technology
- 年：2010
- 作者机构：中石化中原油田分公司;华中科技大学功能材料与环境化学研究所;
- 论文关键词：高温高压 ; H_2S/CO_2 ; 吡啶季铵盐 ; 缓蚀剂
- 英文论文关键词：high temperature and high pressure ; H_2S/CO_2 ; pyridinium salt ; inhibitor
- 会议召开时间：2010-07-28
- 会议录名称：第十六届全国缓蚀剂学术讨论会论文集
- 语种：中文
- 分类号：TE983;TG174.42
- 学会代码：ZGHA
- 会议名称：第十六届全国缓蚀剂学术讨论及应用技术经验交流会
- 会议地点：中国上海
- 主办单位：中国腐蚀与防护学会缓蚀剂专业委员会
- 学会名称：中国腐蚀与防护学会缓蚀剂专业委员会
- 页数：4
- 文件大小：513k
- 原文格式：O
- 会议级别：全国
摘要
针对高温高酸性气田井下系统的恶劣腐蚀环境(H_2S、CO_2分压均大于1.5 MPa),结合当前国内外高温高酸性缓蚀剂的发展趋势,自制了四种不同类型的缓蚀剂主体,并与不同的增效剂复配得到了多系列的缓蚀剂。在150℃高温条件下,根据硫化氢分压的变化,设计三种不同腐蚀环境,通过高压釜失重法对缓蚀剂的缓蚀性能进行了较系统的评价。结果表明:在饱和H_2S高温高压腐蚀条件下,四类缓蚀剂缓蚀效率的大小顺序是:吡啶类>喹啉类>曼尼希碱类>咪唑啉类,而且吡啶季铵盐类缓蚀剂GWS-1对N80钢材具有良好的缓蚀效果,当缓蚀剂用量为0.15%时其缓蚀率为95.9%。
For the harsh corrosive environment of gas well downhole system(the partial pressures of H_2S and CO_2are more than 1.5MPa) in high sulfur and high temperature gas filed and the development,combination with the tends of acidity inhibitor at home and abroad,four kinds of inhibitor bodies were developed and compounded with some synergetic agents to form a series of soluble corrosion inhibitors.The corrosion inhibition properties were systematically evaluated by means of weight-loss method in the three different corrosion conditions.The results showed that the sequence of inhibition effect of four inhibitors in the corrosive environment of saturated H_2S,high temperature and pressure were pyridines > quiolines > mannichs bases > imidazolines.Pyridinium salt inhibitor GWS-1 had excellent corrosion inhibition effect under high temperature and pressure H_2S/CO_2 environment,and the inhibition efficiency could be 95.9%by using 0.15%GWS-1.
For the harsh corrosive environment of gas well downhole system(the partial pressures of H_2S and CO_2are more than 1.5MPa) in high sulfur and high temperature gas filed and the development,combination with the tends of acidity inhibitor at home and abroad,four kinds of inhibitor bodies were developed and compounded with some synergetic agents to form a series of soluble corrosion inhibitors.The corrosion inhibition properties were systematically evaluated by means of weight-loss method in the three different corrosion conditions.The results showed that the sequence of inhibition effect of four inhibitors in the corrosive environment of saturated H_2S,high temperature and pressure were pyridines > quiolines > mannichs bases > imidazolines.Pyridinium salt inhibitor GWS-1 had excellent corrosion inhibition effect under high temperature and pressure H_2S/CO_2 environment,and the inhibition efficiency could be 95.9%by using 0.15%GWS-1.
引文
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[3]苏玉华.高酸性气田用镍基耐蚀合金G-3油管的研究[D].昆明理工大学,2008.
[4]张庆生,吴晓东,魏风玲,等.普光高含硫气田采气管柱的优选[J].天然气工业,2009,29(3):91-93.
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[6]陈家坚.我国陆地油气开采和集输系统的腐蚀及缓蚀剂控制IMC系列缓蚀剂的研究和应用,成果资料汇编[Z].沈阳:中国科学院金属腐蚀与防护研究所,1995:4,9,41.
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