FIELD: oil industry; storage of high-viscosity oil products. SUBSTANCE: product to be stored is pumped in mixture with carbon dioxide into underground reservoir along one of wells of two-well reservoir. Forced out brine is taken out along other well. At stage of storage brine is preliminarily heated and pumped through reservoir in direction of its forcing out when product is pumped into reservoir. For this purpose brine is pumped along product pumping well and is taken out from other well. Taking out the product is carried out through both wells of reservoir by pumping in heated brine. EFFECT: improved reliability of storage and convenience of taking out viscous products. 2 CL, 1 DWGe
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