PROCESS OF EXPLOITATION OF FLOODED OIL DEPOSITS Russian patent published in 1996 - IPC

FIELD: mining industry. SUBSTANCE: flooded section of oil deposit with immobile oil phase is determined. Pool is open with wells. Pool fluid is extracted with the aid of cluster of production wells. Vibration-seismic action on formation is conducted with the use of ground sources of vibrations and average discharge of inflow of pool fluids is checked. When it decreases vibration sources are moved radially from production well by half-length of wave. Vibration-seismic action is carried out till increase of fluid inflow stops. Spacing of grid of productions wells is set equal to half-depth of pool position. Simultaneously with production of oil out of these wells successive pumping of forcing agent, thickening agent and water is performed through injection holes to keep pool pressure and synchronous vibration-seismic action by group of N ground vibration sources equidistant from each other and arranged around one production well extreme to contour of deposit which is located on circumference of radius R is conducted with linear frequency-modulated signal specified in description of invention. After increase of fluid inflow vibration-seismic action with linear frequency-modulated signal is conducted near another production well moving from oil-bearing contour to center of deposit. EFFECT: enhanced reliability and efficiency of process. 2 cl