METHOD OF MULTIZONE OIL FIELD DEVELOPMENT Russian patent published in 2017 - IPC E21B43/14 E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: method involves drilling of vertical and inclined wells as per any of the known well patterns; determination of intercalations with various permeability; pumping of displacing fluid to each intercalation through pressure wells and extraction of the field product from each of the intercalation through producing wells. Multizone field areas are determined where formational pressure of each intercalaton eliminates the hydrodynamic connection between them when transmitting. Drilling of vertical pressure wells in the central portion of the deposit and of producing wells around the perimeter inside the deposit is performed. Pressure wells are built vertically and producing wells - inclined so that the profile log is uniform at all intercalations from pressure well to nearby producing wells.

EFFECT: increased completeness of reserve recovery.

3 dwg