Study on the technology of massive oilfields oil recovery increase in the process of underground gas storage

Authors: Sh.M. Valitov (Gazprom neft OAO)
The mechanism of additional recovery of residual oil in the process of cyclic injection and the extraction of hydrocarbon gas, simulating the regime of underground gas storage in depleted oil reservoir, is substantiated. The capability of reef oilfields oil recovery increase in the process of underground gas storage is proved. It is shown, that the main mechanism of oil output increase in this technology is the production with a gas of light ends, soluble in the injected gas.
The mechanism of additional recovery of residual oil in the process of cyclic injection and the extraction of hydrocarbon gas, simulating the regime of underground gas storage in depleted oil reservoir, is substantiated. The capability of reef oilfields oil recovery increase in the process of underground gas storage is proved. It is shown, that the main mechanism of oil output increase in this technology is the production with a gas of light ends, soluble in the injected gas.


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