对一种发泡剂主剂月桂酰胺丙基甜菜碱 (LAB) 与两种发泡剂辅剂十二烷基硫酸钠 (SDS) 、月桂酰胺丙基氧化胺 (LAO) 进行复配, 得到气井泡沫排水剂配方.并评价其静态发泡能力与动态携液能力, 结果为质量分数70％的LAB与质量分数30％的SDS形成的发泡剂罗氏泡高138mm, 搅拌泡沫体积480mL、半衰期520s;在通气量为8L/min的条件下对w (凝析油) =10％的地层水携液量达到82g.通过实验研究了不同w (凝析油) 与不同w (发泡剂) 的携液量之间关系, 确定了在w (发泡剂) =2％、w (凝析油) =40％条件下携液量达到75g.并且研究了通气量与携液量之间的关系, 确定了当通气量达到8～10L/min时泡沫排水剂的携液量可达到最佳.最后发泡剂经过120℃老化12h之后仍可保持原有性能基本不变, 可满足吉林油田气井泡沫排水使用要求.%A main foaming agent, lauryl propyl propyl betaine (LAB), and two blowing agent adjuvants, sodium dodecyl sulfate (SDS) and lauramide propyl amine oxide (LAO) are compounded to obtain a gas well foam drainage formulation, and its static foaming ability and dynamic liquid carrying capacity were evaluated.The results show that the foaming agent with 70％ LAB and 30％ SDS has138 mm foam height with ROSS-Miles equipment;stirring foam volume can reach 480 mL, the half life of foam is 520 s.When the ventilation volume is 8 L/min the liquid carrying capacity of the 10％condensate oil content reached 82 g.It was determined that the mass fraction of the blowing agent reached2％and the liquid carrying amount of 75 g could be achieved under the condition of 40％ condensate.Meanwhile, the relationship of gas flow and liquid carrying mass is also studied, and the optimized gas flow for foam drainage is 8～10 L/min.The foam drainage agent can retain the performance after 120℃aging for 12 h, these performances can satisfy the requirements for gas well foam drainage in Jilin Oil Field.
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