甜菜碱类复合缓蚀泡排剂的制备与性能研究

Modern Chemical Industry(2023)

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Abstract
针对气田开发中后期面临出水和腐蚀两大问题,气田现用泡排剂和缓蚀剂配伍性较差,排水采气和缓蚀效果均受到影响.以十二烷基二甲基羟丙基磷酸酯甜菜碱作起泡组分主剂,有机膦类缓蚀剂和气田现场缓蚀剂作缓蚀组分,制备出一种甜菜碱类复合缓蚀泡排剂配方体系.结果表明,当甜菜碱类复合缓蚀泡排剂质量分数为0.31%时,200 mL溶液初始起泡体积为710 mL,析液半衰期为420 s,泡沫半衰期6 h以上,腐蚀速率为0.065 9 mm/a,可满足现场对缓蚀泡排剂起泡性能和腐蚀速率的要求.
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