19S6. The material is !bisctto corracrkm bv the author. Permission to cooy IS raalrictad to an abstractof not more than 300 words. Write SPE, PO. Box S33S3S, Riihardeon, .--)xas 7541s&3S36. Takx: 7309S9 SPE DAL. -ABST8ACT e North Burbank Unit Block A polymerflood project IS initiated in September 1980, with the injection of freeh water preflush into 36 wells within the ,440-acre [582. 7 ha] project area.An qconomic :oduction response hae occurred from the use of the lillips in-depth polymer-aluminum citrate-polymer recess in this naturally fractured sandstone ueervoir. The oil~duction rate now averages over ),000 BOPM [4,769 m /M] (mid-1985) from a pre-project ,te of less than 15,000 BOPM [2,385 m3/M] qnd the reducingwater-oil-ratio (WOR) haa been reduced from ?er 100 to less than 50.Total cumulative oil covery is projected at over 4.4MM STB [0.67HM -3], ear 85% of the pre-project projection, assuming an :onomic limit of 2 BOPD [0.31 m3/D] per well. he chemical injection sequence haa included 500 ppm ctive polymer augmented by 500 ppm aluminum citrate rosslinkingagent, 250 ppm polymer, 50 ppa polymer, a resh water poetflush, and finally produced brine njection. A total.of 4.17 MM pounds [1.89MM kg] of lyacrylamide wae injected into 36 wells. Fresh rnterand polymer production were monitored at 84 reducing wells in an attempt to correlate with oil reductionresponse.his paper susmuarizes the design, operation, onitoring, response, and cost of the polymerflood reject. Economical and technical factors to be onsidered in an expansion project in the Rorth urbank Unit or in applicationof the Phillips polymer roceas in other reservoirsare addressed.IKef erences and illustrationsat end of paper.
19S6. The material is !bisctto corracrkm bv the author. Permission to cooy IS raalrictad to an abstractof not more than 300 words. Write SPE, PO. Box S33S3S, Riihardeon, .--)xas 7541s&3S36. Takx: 7309S9 SPE DAL. -ABST8ACT e North Burbank Unit Block A polymerflood project IS initiated in September 1980, with the injection of freeh water preflush into 36 wells within the ,440-acre [582. 7 ha] project area.An qconomic :oduction response hae occurred from the use of the lillips in-depth polymer-aluminum citrate-polymer recess in this naturally fractured sandstone ueervoir. The oil~duction rate now averages over ),000 BOPM [4,769 m /M] (mid-1985) from a pre-project ,te of less than 15,000 BOPM [2,385 m3/M] qnd the reducingwater-oil-ratio (WOR) haa been reduced from ?er 100 to less than 50.Total cumulative oil covery is projected at over 4.4MM STB [0.67HM -3], ear 85% of the pre-project projection, assuming an :onomic limit of 2 BOPD [0.31 m3/D] per well. he chemical injection sequence haa included 500 ppm ctive polymer augmented by 500 ppm aluminum citrate rosslinkingagent, 250 ppm polymer, 50 ppa polymer, a resh water poetflush, and finally produced brine njection. A total.of 4.17 MM pounds [1.89MM kg] of lyacrylamide wae injected into 36 wells. Fresh rnterand polymer production were monitored at 84 reducing wells in an attempt to correlate with oil reductionresponse.his paper susmuarizes the design, operation, onitoring, response, and cost of the polymerflood reject. Economical and technical factors to be onsidered in an expansion project in the Rorth urbank Unit or in applicationof the Phillips polymer roceas in other reservoirsare addressed.IKef erences and illustrationsat end of paper.
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