Surface wetting property of corn and its influence on different plugging abilities to oil and water using selective plugging agent(岩心表面润湿性与化学选堵剂对油水的封堵能力)
选择阳离子聚丙烯酰胺类选堵剂，进行岩心模拟实验，研究不同岩心表面润湿性与化学选堵剂封堵能力之间的关系.表面润湿性强烈影响对水的堵塞率，水润湿性越强，对水的堵塞率越高，典型的亲水表面和亲油表面对水的堵塞率相差20% 左右；使用水基凝胶，水驱后的残余阻力系数(RRF)大于油驱后的RRF，水基凝胶使水相渗透率的降低比油相渗透率的降低多.对于润湿性相同，渗透率不同的天然岩心，选堵剂的堵水率大于85%，堵油率在20% 左右，表现出良好的选择性....
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| Format: | Article |
| Language: | zho |
| Published: |
Zhejiang University Press
2005-03-01
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| Series: | Zhejiang Daxue xuebao. Lixue ban |
| Subjects: | |
| Online Access: | https://doi.org/zjup/1008-9497.2005.32.2.198-200 |