石油化工2025，Vol.54Issue(5)：675-679,5.DOI:10.3969/j.issn.1000-8144.2025.05.010
页岩气井缓蚀泡排一体化技术
Integrated technology of corrosion inhibition and foam drainage in shale gas wells
摘要
Abstract
During the process of using foaming agents and corrosion inhibitors to solve the problems of water accumulation and corroded casings in gas field exploitation,the problem of poor compatibility often occurs,which leads to a reduction in the usage efficiency.To address this issue,cetyl phosphate betaine(CLJ-1)was optimally selected as the foaming agent,and it was combined with the imidazoline-type corrosion inhibitor stearic acid diethylenetriamine imidazoline(SDEAI)that has good compatibility with it to form the compound corrosion-inhibiting and foaming agent CLJ-1Y.The foam-discharging and corrosion-inhibiting performance of CLJ-1Y was studied.The experimental results show that under the conditions of m(CLJ-1)∶m(SDEAI)=10,85℃,and mineralization degree 300 g/L,the foaming ability of this compound system is 201 mm,the foam-stabilizing ability is 68 mm,the liquid-carrying capacity is 181 mL,and the corrosion-inhibition rate is 75%,indicating good corrosion-inhibiting and foam-discharging performance.This compound system can still maintain good corrosion-inhibiting and foam-discharging performance under high-temperature and high-salinity conditions.关键词
起泡剂/排泡性能/缓蚀率/抗高温/抗高盐Key words
foam drainage agent/foam drainage performance/corrosion inhibition rate/high temperature resistance/high salinity resistance分类
石油、天然气工程引用本文复制引用
何宇,何天宝,谢波,凡田友,黄霖..页岩气井缓蚀泡排一体化技术[J].石油化工,2025,54(5):675-679,5.基金项目
西南油气田分公司蜀南气矿2023年科学研究与技术开发项目(20230011). （20230011）
