聚合物驱后砂岩储层岩石物理特征变化机制.pdfVIP

2009年 33卷 中国石油大学学报(自然科学版) Vol. 33 No. 3 3期 JournalofChinaUniversity of Petroleum Jun. 2009 : 1673-5005(2009) 03-0022-05 聚合物驱后砂岩储层岩石物理特征变化机制 1, 2 2 1 1 3 高 建 , 侯加根 , 王 军, 贾俊山, 蔡燕杰 ( 1. 中石化胜利油田 地质科学研究院, 山东 东营 257015; 2. 中国石油大学 资源与信息学院, 北京 102249; 3. 中石化胜利油田孤岛采油厂, 山东 东营中257231) : , : , , ; , , , ; / S0, : ; ; ; : TE 122. 23 :A Variation m echanism of petrophysical property of sandstone reservoir after polym er flooding 1, 2 2 1 1 3 GAO Jian , HOU Jia-gen, ANG Jun, JIA Jun-shan, CAIYan-jie ( 1. Geological Scientfiic Research Institute of Sheng li O ifl ield, SIN OPEC, Dongying 257015, China; 2. School of R esource and Inf orm ation echnology in China University of P etroleum, Beij ing 102249, China; 3. Gudao OilProductionP lant of Shengli Oifl ield, SINOPEC, Dongying 257231, Ch ina) Abstrac t: The electricity characteristics of polymer solution and internaltexture and variation mechanism of reservoir after polymer floodingwere studiedby sampledetermination, capillary pressure curve and the analysisof dynam ic and staticwell data. The results show that the resistivity of polymer solution descendsw ith polymer concentration ascending and the decline range is influenced by themake-up pattern of polymer solution. ReservoirÂsphysicalproperty increases and itspore texture is mi proved afterpolymer flooding, but the pore texture becomesbad because of the resident action of residual polymer. The higher the concentration of the residual polymer is, theworse the pore texture is. The formation resistivity change has the