史胜龙;王业飞;周代余;昌伦杰;李忠鹏;丁名臣;

• 1:中国石油大学(华东)石油工程学院

• 2:中国石油塔里木油田分公司勘探开发研究院

摘要(Abstract)：

针对普通泡沫稳定性差问题,通过玻璃珠填制的填砂管制备一种稳定性好、均匀度高且直径细小的微泡沫体系,用显微镜对微泡沫的微观形态进行观察,研究不同影响因素对微泡沫直径的影响,分析黄原胶稳定的微泡沫与普通微泡沫稳定性的差异。结果表明:气、液同时注入玻璃珠填制的填砂管时,可形成直径为10~100μm、变异因数小于10%的微泡沫体系。可通过改变溶液黏度、起泡剂质量浓度、两相流速、温度和回压等影响因素调节微泡沫的直径大小。随着溶液黏度、两相流速、回压的增大,微泡沫平均气泡直径减小,均匀性变好;温度升高导致微泡沫直径增大,均匀性变差。当起泡剂质量浓度高于5g/L时,起泡剂质量浓度增加对微泡沫直径影响不明显。由于溶液中的黄原胶增加液膜黏度和厚度,减缓微泡沫液膜排液过程,促使黄原胶稳定的微泡沫具有优越的稳定性,并在160g/L矿化度、90℃温度、6 MPa回压条件下,其稳定时间长达2h,而普通微泡沫的稳定时间少于20min。

关键词(KeyWords)：微泡沫;微观形貌;平均气泡直径;变异因数;稳定性

Abstract:

Keywords:

基金项目(Foundation):长江学者和创新团队发展计划项目(IRT1294);; 中央高校基本科研业务费专项(15CX06030A);; 中国石油天然气公司重大专项(2014E-2107)

作者(Author):史胜龙;王业飞;周代余;昌伦杰;李忠鹏;丁名臣;

Email:

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