强化泡沫驱复配的研究与评价

Research and Evaluation of Forced Foam Flooding System

实验采用Waring Blender法,在30℃筛选出了?-烯基磺酸钠AOS,脂肪醇聚氧乙烯醚硫酸盐型AES两种较好的起泡剂并进行复配,确定最佳复配比为3∶2,在最佳复配比基液加入生物聚合物XC,阴离子聚丙烯酰胺(APAM分子量为1 800万),正十二醇作用效果不同的三种稳泡剂,采用3因素3水平正交试验得出强化泡沫驱配方:AOS(0.18%)+AES(0.12%)+AMPM1800(0.04%)+XC(0.08%)+正十二醇(0.04%)。对配方进行抗温性检测试验,得出75℃泡沫性能最好,发泡量为1 140 m L,析液半衰期达到78 min,泡沫半衰期能接近7.7 h。

Two kind of superior foaming agents AOS and AES were chosen by using Waring Blender method. Then they were compounded and the best ratio was determined（3∶2）. Three different stabilizing agent XC,APAM1800 and dodecanol were selected. The forced foam flooding system was optimized by orthogonal design. The best formula was obtained as follows： AOS（0.20%）＋AES（0.10%）＋ XC（0.08%）＋APAM1800（0.04%）＋dodecanol（0.04%）. Its foaming ability, stability, anti-temperature and other properties were tested. The results show that the formula＇s foam volume reaches 1 140 mL, drainage half-life is about 78 min, foam half-life reaches 7.7 h at 75℃.