METHOD FOR OIL MOBILITY IMPROVEMENT DUE TO RECOVERY OF FORMATION PRESSURE AND GAS RESOLUTION IN OIL Russian patent published in 2015 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: method is applied to deposits developed by producers and injectors. During implementation of the method producers are transferred to other deposits, producers are shut down for the period of pumping and "relaxation" of the deposit, at that values of gas factor and water cut are monitored permanently. These actions allow speeding up of the process of formation pressure recovery in absence of extraction that reduced formation pressure. The shut down producers are input into operation as the formation pressure is restored up to the level covering the value of hysteresis for gas resolution against pressure, at that periodical start-up of wells is made for on-line testing of the production yield, water cut and value of gas factor. Thereafter project producers are drilled.

EFFECT: increased yield of wells by increased oil mobility due to solution of gas evolved from oil in the rock at recovery of formation pressure.

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