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- W2365675570 abstract "The performance properties of a standard HPAM polymer and a salt tolerant polymer,KYPAM,as EOR polymer are investigated comparatively under simulation conditions of oil reservoir of Formation KL in district 7E1,Karamay.HPAM polymer has M=2.1×107 and HD in range 25—30%;KYPAM is a comb-shaped AM copolymer of M=2.3×107 and HD in range 25—30%.Polymer solutions are prepared in a fresh water(FW) of TSD=0.335 g/L for reservoir flooding or a produced water(PW) of TSD=7.637 g/L.The experimental temperature is of 34℃.App viscosity vz concentration and shear rate curves show that the viscosifying ability of KYPAM is higher in FW and much more higher in PW.The short-term shearing resistance in FW is much more higher than and becomes closer to that of HPAM.The retention of app viscosity of KYPAM FW and PW solutions aged in sealed ampoules over 90 days is higher than corresponding values of HPAM solution.On consolidated riverbed sand packs simulating conglomerate reservoir having waterflooded,injecting 0.6 PV of 0.8, 1.0,1.2,and 1.5 g/L polymer solution in FW results in enhancement in oil recovery of 6.06%,6.51%,6.61%,and 7.17% for KYPAM and of 8.2%,7.2%,10.0%,and 10.2% for HPAM.The filament diameter vz stretching time and the storage module vz oscillation frequence curves show that the elasticity of KYPAM solutions is lower than that of corresponding HPAM solutions,which is considered to be the reason for lower oil displacement efficiency of KYPAM in comparison with HPAM." @default.
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- W2365675570 date "2007-01-01" @default.
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- W2365675570 title "A Comprehensive Comparative Appraisal of Standard HPAM Polymer and Salt Tolerant Polymer KYPAM for EOR" @default.
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