Abstract
The displacement of hard-to-recover oil by water has become the most widespread method of crude oil extraction. However, in its implementation, the oil recovery factor is insignificant. Recently for this purpose the technology of water alternation gas injectionhas become widespread. In this work, the laboratory tests were carried out in conditions of artificial oil stratumusing the samples of live oil, water and gas. For the study were usedcore material samples selectedfrom the well ofoil fields. Experiments were conducted using different models of samples and fluids under conditions of maintaining the layer pressure and back pressure with a flow rate of 0.1 ml / min.
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