摘要
苏203区块于2011年开发,目前面临重大腐蚀问题,严重影响气田的正常开采和运行。寻找一种适用于苏203井区生产工况的防腐蚀措施势在必行。对苏203井区的腐蚀情况进行了调研,并对高性能合金镀层进行了室内及现场应用评价。结果表明:苏203井区腐蚀情况严重,最高腐蚀速率达2.3mm/a,且出现穿孔的现象。高性能合金镀层具有良好的硬度、耐磨性和耐蚀性,能够明显降低试样的腐蚀速率,平均腐蚀速率为未镀层试样的3.84%～4.54%。将苏南19站站内转水管线更换为高性能合金镀层管线后,未发现壁厚明显变薄的现象,这表明高性能合金镀层具有良好的耐蚀性,可在苏203井区推广使用。
Su 203 block was developed in 2011.At present,it faced major corrosion problems,which seriously affected the normal mining and operation of gas fields.It is imperative to find an anti-corrosion measure suitable for the production conditions of the Su 203 well area.The corrosion of the Su 203 well area was investigated,and a highperformance alloy coating was evaluated for indoor and field applications.The results show that the corrosion situation of Su 203 well was serious,the highest corrosion rate was 2.3 mm/a,and the phenomenon of perforation occurred.The high-performance alloy coating had good hardness,wear resistance and corrosion resistance,and it could significantly reduce the corrosion rate of samples.The average corrosion rate of the high-performance alloy coating was only 3.84%to 4.54%of uncoated samples.After replacing the water transfer pipeline in the 19 station of Sunan as a high-performance alloy coating pipeline,the phenomenon that the wall thickness was significantly thinned was not found,indicating that the high-performance alloy coating had good corrosion resistance and could be popularized in the Su 203 well area.
作者
周明明
黄航娟
温杰
朱礼明
崔熙
姜凯凯
贾潇
段小鹏
ZHOU Mingming;HUANG Hangjuan;WEN Jie;ZHU Liming;CUI Xi;JIANG Kaikai;JIA Xiao;DUAN Xiaopeng(Changqing Oilfiled Branch No.6 Gas Production Plant,China National Petroleum Corporation,Xi'an 710018,China)
出处
《腐蚀与防护》
CAS
北大核心
2019年第3期209-214,共6页
Corrosion & Protection
