摘要
注入性能和运移性能是评价油田化学驱用聚合物的主要指标。介绍新型聚合物羧甲基纤维素钠（CMC）和丙烯酸共聚物在多孔介质中的注人性能与运移性能。采用直径2．5cm标准小岩心和直径为2．5cm长度为100cm多测压点填砂管实验，通过阻力系数和残余阻力系数表征该新型聚合物在多孔介质中的波及能力。根据注入孔隙体积倍数和压力变化关系，考察研究CMC和丙烯酸共聚物在多孔介质中的注人性能与运移性能。实验研究表明，在（68～99）×1013μm。岩心中该新型聚合物具有较高的阻力系数及残余阻力系数，而且注入性能良好。多测压点填砂管实验证明该新型聚合物具有较好的运移性能。
The performances of the injection and migration are the key indexes of polymer using in chemical oil flooding. These properties of a new-type polymer： the copolymer synthesized by sodium carboxymethylcellulose （CMC） and acrylic acid in porous media are introduced. The standard small core with diameter of 2. 5 cm and sand-filled tube with multi-tested pressure points are adopted in the experiment. By means of the resistance coeffi- cient and residual resistance coefficient, the swept ability in porous media for this new polymer is characterized. According to the changed relations between PVs and the pressures j the performances of the injection and migration in porous media for CMC and acrylic acid copolymer are explored and researched. The experimental studies show that in the core with the permeability of （68 -99} x 10-3 μm2 the new-type polymer possesses much higher resist- ance coefficient and residual resistance coefficient as well as much better injection performance. The experiment of multi-tested point and sand-filled tube proves that this new polymer has much better migration performance.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2012年第6期151-155,共5页
Petroleum Geology & Oilfield Development in Daqing
关键词
新型聚合物
阻力系数
残余阻力系数
注入性能
运移性能
new-type polymer
resistance coefficient
residual resistance coefficient
injection performance
mi- gration performance
