含CO2天然气气井腐蚀因素分析及对策
Corrosion Factors and Countermeasures of Gas Wells with CO2
摘 要
在综合考虑气田开发中防腐蚀工程的特点和技术需求的基础上,根据现场腐蚀环境参数测试结果,采用动态高温高压釜,在不同的温度、流速、压力、pH值条件下对现场在用的材料进行了腐蚀失重试验,从而确定井下在设材料的腐蚀情况.模拟CO2环境筛选出油套环空保护液、气井井下缓蚀剂和地面缓蚀剂,形成试气、完井、试采过程和地面集输系统的防腐蚀对策,完善腐蚀监测技术和腐蚀信息数据库管理系统.以上对策已进行了现场应用.
含CO2
天然气
防腐蚀
因素
对策
high temperature and high pressure
CO2
natural gas
anti-corrosion
factors
countermeasures
Abstract
Considering the characteristics and technical requirements of the gas field development in anti-corrosion,according to corrosion test results of environmental parameters,using dynamic high-temperature autoclave,under the conditions of different temperature,flow,pressure,pH value,the weigh loss tests were carried out for applied materials.Through simulating the CO2 conditions,oil rings,air corrosion inhibitor and gas well corrosion inhibitors of ground and underground were screened.Corrosion coumtrer measures for gas test,completion,trial-produce and ground transportation systems were formed.Corrosion monitoring technology and information database management system was perfected and applied onsite successfully.
中图分类号 TG172.3
所属栏目 应用技术
基金项目
收稿日期 2009/1/1
修改稿日期 2009/1/19
网络出版日期
作者单位点击查看
联系人作者尹修利(yxl7003@163.com)
备注尹修利,工程师.
引用该论文: YIN Xiu-li. Corrosion Factors and Countermeasures of Gas Wells with CO2[J]. Corrosion & Protection, 2010, 31(1): 71～74
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参考文献
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