METHOD OF DEVELOPMENT OF HYDROCARBON DEPOSIT Russian patent published in 2008 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil and gas industry, particularly to methods of development of hydrocarbon deposits. The invention facilitates increased efficiency of oil extraction with the implementation of the method at massive oil and gas deposits due to reduced probability of gas cones formation. The essence of the invention is as follows: the method includes drilling out a deposit with producing and fill in wells, pumping water through fill in wells and withdrawal of oil through producing wells. According to the invention pumping of water through fill in wells is performed to the raised part of the gas cap till formation of a continuous water mirror along the oil gas contact occurs. After that withdrawal of oil out of oil rim is commenced through producing wells, while extraction of gas is carried out through the same producing wells after complete withdrawal from the oil rim and transferring their drilling intervals into the gas cap.

EFFECT: facilitates increased efficiency of oil extraction with the implementation of the method at massive oil and gas deposits due to reduced probability of gas cones formation.

3 cl, 1 ex, 1 dwg