第45卷第5期
石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
凝析油环境下缓蚀剂的防腐性能及乳化倾向性研究
江晶晶1235
张东岳1-2.3李一枚余华利1,2.3袁曦1.2.3 黄刚华1-2.3王伟杰’张强12.3
1.中国石油西南油气田公司天然气研究院2.国家能源高含硫气藏开采研发中心
3.中国石油天然气集团公司高含硫气藏开采先导试基地
摘要以海外阿姆河某气田为例，介绍了在产凝析油气田中缓蚀剂通常面临的主要问题，包括汇管积液部位防腐效果不佳，气田水乳化问题。通过室内实验对凝析油环境下缓蚀剂的性能进行了相应的评价研究。从缓蚀剂的物理化学性质的角度简要分析了出现这些问题的原因，并提出了今后缓蚀剂的研发及优化方向。
关键词凝析油缓蚀剂防腐乳化
中图分类号：TE988.2文献标志码：A
D0I:10.3969/j.issn.1007-3426.2016.05.016
Anti-corrosionperformanceandemulsifyingtendencyresearchof
corrosioninhibitorincondensateoilexistenceenvironment Jiang Jingjing"2.3, Zhang Dongyue' 2J,Li Yimei' , Yu Huali'-2., Yuan Xi' -2.3
Huang Ganghua' -23, Wang Weijie' , Zhang Qiang" 2.3
(l. Research Institute of Natural Gas Technology , PetroChina Southwest Oil and Gasfield Com pany
Chengdu 610213, China; 2. National Energy R&D Center of High Sulfur Gas Exploitation Chengdu 610000,
China; 3. High Sulfur Gas Exploitation Pilor Test Center, CNPC, Chengdu 610213, China)
Abstract: In this paper, the problems of corrosion inhibitor applied in gas field with the existence of condensate oil are discussed by the example of Amu Darya gas field , including the serious corrosion in liquid load position and gas field water emulsification . The performance and emulsifying tendency of three different corrosion inhibitors are researched through laboratory experiments under the existence of condensate oil. From the perspective of physical and chemical properties of the corrosion inhibitors, the reasons of these problems are briefly analyzed. In addition, the future direction and optimization prospect of corrosion inhibitors are put forward.
Key words : condensate oil, corrosion inhibitor, corrosion prevention , emulsification
缓蚀剂在气田开发与生产中的主要作用是防止或减少金属材料在酸性介质中的腐蚀，通常面临的腐蚀介质与环境包括：气田水、CO：、H2S、高温、高压等1，而对于在凝析油存在条件下缓蚀剂现场应用所面临的问题的分析报道则较少3]。海外阿姆河某气田天然气中H2S体积分数为3.0%~4.5%.C02体积分数为
71
5.6%～6.2%，凝析油与气田水体积比为0～0.25，产水量约为0.17m"/(10°m天然气），气田水中Cl-质量浓度为1900～15296mg/L，地层最高温度为 162℃，井口采气量为100×10°m/d时，井口温度为 100～120℃。气田停产检修时，发现地面集输管线汇管的积液部位腐蚀情况较为严重，且局部腐蚀现象明
作者简介江晶晶（1988一）江苏南通人，2013年毕业于山东大学，硕士研究生，现就职于中国石油西南油气田公司天然气研究院，主要从争龄潜性剂、缓蚀剂的研究工作。E-mailjiang_jingjingpetrochina.com.cn