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| 多相泡沫体系调驱试验 |
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李宾飞1,李兆敏1,刘祖鹏1,赵磊1,李松岩1,林日亿2,王冠华1
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(1.中国石油大学 石油工程学院,山东 青岛 266555;2.中国石油大学 储运与建筑工程学院,山东 青岛 266555)
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| 摘要: |
| 通过复配泡沫和聚合物冻胶微球形成多相泡沫体系,进行多相泡沫体系在多孔介质中的流动试验。显微图像显示,聚合物携带的聚合物冻胶微球具有良好的圆球度和分散性,分布在多相泡沫的液膜和plateau边界处。试验结果表明:聚合物冻胶微球能在岩心中不断封堵和运移,使注入压力和阻力系数增加,后续水驱仍有较高的残余阻力系数;多相泡沫体系封堵岩心时,压差曲线出现明显的上下波动,多相泡沫封堵受聚合物冻胶微球运移的影响;并联双管试验中泡沫和多相泡沫体系在岩心管中的分布状态不同,多相泡沫体系具有更好的调剖效果。 |
| 关键词: 聚合物 冻胶微球 泡沫 多相泡沫体系 封堵能力 调剖 |
| DOI：10.3969/j.issn.1673-5005.2010.04.018 |
| 分类号::TE 357.46 |
| 文献标识码:A |
| 基金项目:国家科技重大专项大型油气田及煤层气开发专题(2008ZX05009-004) |
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| Experiment on profile control and flooding by multiphase foam system |
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LI Bin fei1, LI Zhao min1, LIU Zu peng1, ZHAO Lei1, LI Song yan1, LIN Ri yi2, WANG Guan hua1
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(1.College of Petroleum Engineering in China University of Petroleum, Qingdao 266555, China;2.College of Storage ＆ Transportation and Architectural Engineering in China University of Petroleum, Qingdao 266555, China)
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| Abstract: |
| A multiphase foam system was prepared with gas liquid foam and polymer gelled microsphere, and the experiments of this system flowing in porous medium were curried out. Micrographs show that the ploymer gelled microsphere has good psephicity and dispersed property, and the ploymer microsphere distributes over the liquid film and plateau boundary of multiphase foam. The experimental results show that the polymer gelled microsphere can move and plug in the core, which makes the injection pressure and resistance coefficient increase, and the succeeding water flooding still has a high residual resistance coefficient. The pressure drop fluctuates obviously when the multiphase foam plugs the core, which shows that the polymer gelled microsphere movement has an influence on multiphase foam system plugging ability. The distribution station of foam and multiphase foam in parallel core experiment is different, and the multiphase foam system has a better profile control ability than foam. |
| Key words: polymers gelled microsphere foam multiphase foam system plugging ability profile control |
