METHOD OF DEVELOPING MULTIPLE-ZONE OIL DEPOSIT Russian patent published in 1999 - IPC

FIELD: oil and gas production. SUBSTANCE: invention is suitable for developing multiple- zone oil deposits with variable-permeability collectors. Oil is taken off through production wells, and water is pumped in through injection wells in cycling mode. Agent increasing hydrodynamic conductance of formation is further pumped in. Beds are divided into two groups: those with higher permeability and less permeable beds. Agent is pumped in into at least one injection or production well during the second formation pressure reduction period. Duration of water-pumping cycle is chosen from condition that the least difference in averaged velocities of driving fronts over the first and second group producing formations is provided. EFFECT: estimated average values of filtration-capacitive properties of formations. 6 cl, 3 dwg, 2 tbl