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- W2381580987 abstract "The absorbent particles(APs) suggested as reservoir permeability adjusting agent(RPAA) are prepared by reacting 4 starting components at heating,granulating,and drying and manufactured with particle size 1,1—2,and 2—4 mm.Taking swelling rate(SR) of GPs in 16 g/L NaCl aqueous solution at 95℃ in 24 hrs and the compression of 1 cm3 cube of swelled APs under 50 g load as criteria,the preparation parameters are established:≤70% specially treated clay;≥20% silicate of module 3;≥10% acrylamide;and ≥1% stabilizer; reaction temperature ≥80℃ and reaction time ≥9 hrs;for the APs prepared,the SR is of 10.2 and the cube compression is of 0.2 cm;for the GPs having aged over 2 months under the same conditions as in SR determination,the SR is decreased to 9.0 and the cube compression is kept at level 0.2 cm.The time needed for 200 mL city water to flow through the 20—30 mesh quartz sand packs of 4.2 cm in diameter and 15 cm long and treated by 3 g/L APs suspension in water is elongated from 7 sec to 15 sec.At well group M consisting of 1 injection and 3 production wells with water cut 96% and reservoir temperature 82℃,11 t APs has been injected into the reservoir together with 1×104 m3 flooding water of TSD=10 g/L at dosage 25 and 15 g/L,respectively,and in result of the indepth reservoir permeability adjustment,an increase in water injection pressure and in oil output and a decrease in watercut by 2.1% in average and to a minimum of 70.6% were observed in more than 180 days." @default.
- W2381580987 created "2016-06-24" @default.
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- W2381580987 date "2006-01-01" @default.
- W2381580987 modified "2023-09-25" @default.
- W2381580987 title "Preparation and Field Use of Inorganic/Organic Complex Absorbent Particles as Reservoir Permeability Adjusting Agent" @default.
- W2381580987 hasPublicationYear "2006" @default.
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