... The core sample for the study has been selected from the layer BH 4-5 of Eastern Siberia. Materials and methods OST 39-195-86 Oil. The method of estimating the water-oil displacement efficiency under laboratory conditions. Results The results of the experiments showed that water-alternated-gas injection and gas stimulation are more efficient in oildisplacement than other displacement agents. Сonclusions Gas injection is more efficient in oil displacement when the core samples of less than 167,1mD ...

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