盆5气田地面集输系统缓蚀剂的优选及评价

新疆准噶尔盆地盆5气田自建成投产以来，随着生产时间的推移，气田产液量也随之增加，因产出水的矿化度较高，加之该气田天然气中含有CO₂气体，因此腐蚀情况较为严重，影响了气田的安全生产。针对该气田的腐蚀情况，通过室内模拟现场腐蚀环境，采用失重法实验研究了不同缓蚀剂对地面集输系统管材（20G钢）的缓蚀效果，筛选出了缓蚀效果较好的缓蚀剂CT2-4，并采用极化曲线和交流阻抗谱图对其做了电化学评价。结果表明：CT2-4浓度在100～175 mg/L时的缓蚀率可超过85%，防腐效果理想。该研究成果为盆5气田的安全生产提供了技术保障。

Optimal selection and evaluation of corrosion inhibitors for a gathering system of the Pen-5 Gas Field,Junggar Basin

Since the completion and commissioning of the Pen-5 Gas Field,Junggar Basin,the liquid-producing capacity of this gas field has been increasing.Due to a high mineralization degree of the produced water and CO2 contained in the natural gas,serious corrosion is always threatening the production safety.In view of this,a laboratory simulation study is performed on this field's corrosion environment.The weight-loss method is applied to the study of the inhibition effect of different corrosion inhibitors on the 2...