METHOD FOR DEVELOPMENT OF OIL DEPOSIT Russian patent published in 1998 - IPC

FIELD: oil production industry. SUBSTANCE: according to method, wells are located in deposit according to pattern water flooding system with equal number of injection and producing wells. After drilling of wells, their bottom-hole zone is subjected to demugging. Then, performed is injection of surface-active material. Oil is recovered through producing wells. Injected through injection wells is mineralized water from lower water-bearing horizon. Undertaken is oil recovery through producing wells. Density of well pattern is determined according to following empirical formula: S = 8.2+1.5 K_prod, where: S -density of well pattern, ha/well; K_prod - coefficient of well productivity, m³/day.MPa. EFFECT: higher efficiency.