缔合聚合物在多孔介质中的渗流运移特征  

Study on seepage characteristics of hydrophobic associated polymer in porous media

作　　者：宋新旺[1,2] 李哲[3] 

机构地区：[1]中国石油大学(北京)化工学院,北京102249 [2]中国石化股份胜利油田分公司地质科学研究院,山东东营257015 [3]山东大学数学学院,山东济南250100

出　　处：《油气地质与采收率》2012年第4期50-52,114,共3页Petroleum Geology and Recovery Efficiency

基　　金：国家科技重大专项"胜利油田特高含水期提高采收率技术"(2011ZX05011)

摘　　要：为了探讨缔合聚合物在多孔介质中能否保持较高的有效粘度,并指导其矿场应用,进行了不同类型缔合聚合物溶液性能评价和物理模拟实验。测试了不同类型聚合物在不同的质量浓度和剪切速率条件下的增粘性能,在高质量浓度条件下,缔合聚合物的增粘性较常规驱油用聚合物好,但其表观粘度受剪切速率影响大。在多孔介质中的有效视粘度和渗流运移特征及驱油效果表明,具有超高相对分子质量且分子间存在缔合作用的聚合物表现出了较好的增粘性和在多孔介质中均匀的压力传递特征,其作为驱油剂具有较好的应用前景,而仅靠分子间缔合作用增粘的普通缔合聚合物作为驱油剂的应用有待进一步改进和完善。In order to know whether the hydrophobic association polymer can keep high effective viscosity during migration in porous media, different types of hydrophobic association polymer solution character evaluation and physical simulation test are discussed in the paper to give guidance to the field application. The viscosifying performance is tested for different types of polymer solution with different concentration and shear rate. It shows that hydrophobic association polymer has better viscosifying performance than traditional HPAM in high concentration, but shear rate takes great effect on its pseudo-viscosity. It also shows that ultra high molecular weight hydrophobic association polymer with high molecular weight and some degree of association action performs well viscosifying capacity and even pressure transmitting character in porous media by the test of effective apparent viscosity, flow migration characteristic and displacement characteristics. It perhaps has well application feasibility as oil displacement agent. And, the traditional hydrophobic association polymer with its viscosity generation mainly depending on intermolecular association action perhaps should be further improved as oil displacement agent.

关 键 词：缔合聚合物 增粘效果 多孔介质 渗流运移特征 注入压力 驱油效果 

分 类 号：TE357.431[石油与天然气工程—油气田开发工程]