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Oil-displacing aqueous solution thickened with reservoir-tailored block copolymer
Oil-displacing aqueous solution thickened with reservoir-tailored block copolymer
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机译:储层定制的嵌段共聚物增稠的驱油水溶液
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摘要
An oil recovery process in which an aqueous solution is injected into a subterranean reservoir to displace oil through the reservoir is improved by thickening the solution with a substantially linear block copolymer containing both water-soluble and water-insoluble polymer chains. The composition and concentration of the copolymer are correlated with the temperature and injectivity of the reservoir to provide a thickened solution of selected mobility and stability within the reservoir.
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