耐盐稳定泡沫选择性堵水剂

耐盐稳定泡沫具有抗高温、堵水不堵油等优良特性，是很有发展前途的一种选择性堵剂．笔者研究了泡沫稳定的机理，优选了泡沫堵水的配方，选用具有支型结构的发泡剂和具有耐温耐盐结构的稳定剂．由耐盐活性剂（DM5512）、甜菜碱、烷基糖苷（APG）、十六烷基三甲基氯化铵（1631）？昆合制备成了离子型复合起泡剂（QP-1），由羟丙基甲基纤维素（HPMC）、SMP—III、高分子聚合物（SP-8）混合制备成了稳定剂（WD-1），使用时把QP-1和WD-1混合均匀，配成一定水溶液，然后发泡制备耐盐稳定泡沫．实验证明以上配方具有良好的泡沫稳定性和耐温耐盐性，并利用GE-5显微镜观察了泡沫的结构，讨论了可用作选择性堵7k剂的原因．

THE SALT- TOLERANT STEADY SELECTIVE FOAM PLUGGING AGENT

The salt - tolerant foam is a kind of selective plugging agent of great development prospect with good characteristics , such as high temperature resistance and blocking water but oil and so on . We study the mechanism of foam stability , optimize the formula of foam this article , then select foaming agent with branch type structure and stabilizing agent with salt - tolerant and heat resistance structure. We mix salt - tolerant surface active agent （DM5512）, betaine , alkyl glycoside （APG） and hexadecyl trimethyl ammonium chloride （1631） into ionic complex foaming agent （ QP - 1 ）. And we mix HPMC , SMP - m and high molecular polymer （ SP - 8 ） into stabilizing agent （ WD - 1 ）. When using we mix QP - 1 and WD - 1 together with water into salt - tolerant steady foam through foaming . Experiment proves that the above formula has a good bubble stability heat resistance and salt tolerance . While we observe the structure of the foam by GE -5 microscope and discuss the reasons of being used as a selective plugging agent.