摘要
实验研究了缔合聚合物溶液通过筛网的流变行为,通过对比3种不同聚合物的筛网系数与质量浓度及粘度的关系,分析研究了缔合聚合物在多孔介质中的注入能力,认为缔合聚合物在井底炮眼附近高压差下,具有良好的流动及注入性;在油层深部低压差下,产生更大的阻力系数,有利于提高油层深部的驱油效率;实验结果同时也说明了现有评价聚合物溶液注入性的方法不能正确、客观地评价缔合聚合物溶液的注入特性,从而为建立新的适合缔合聚合物的注入性评价方法提供了重要的依据。
This paper presents the experimental study on rheological behavior for the associated polymer solution through screen cloth and the relationship between screen coefficient and mass concentration and viscosity. Through analysis of injectivity of the associated polymer in porous media, it is found that this polymer is of good flow and injection properties under high pressure difference near the bottom hole perforation, bringing bigger drag coefficient under low pressure difference of deep pay zone in favor of improving oil-displacement efficiency of it. Meanwhile, the experimental result shows that the existing methods for evaluation of polymer solution injectivity cannot be used to properly and/or objectively appraise the behavior of associated polymer solution injectivity, which can be as an important guide for development of this new assessment method.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2006年第3期338-341,共4页
Xinjiang Petroleum Geology
关键词
缔合
聚合物
筛网
粘度
多孔介质
associated polymer
screen cloth
viscosity
porous medium
