FIELD: oil and gas industry.
SUBSTANCE: method for recovering oil from the subterranean container is carried out by introducing waterless gaseous ammonia at a higher temperature, than the temperature of the container, and at the pressure that allows gaseous ammonia to fill the cavity in the subterranean container to condense upon contact with the oil to form liquid ammonia, reacting with oil components to form the surface acting agents, effective to form the emulsion of oil in ammonia, followed by extraction of the emulsion formed from the subterranean container. The invention is developed in subclaims.
EFFECT: increased oil extraction efficiency.
8 cl, 1 dwg, 1 ex
