OIL DEPOSIT DEVELOPMENT METHOD Russian patent published in 2013 - IPC E21B43/20 

FIELD: oil and gas industry.

SUBSTANCE: during development of oil deposit the oil is extracted through production wells and working agent is pumped through injection wells. Production wells operated by bottom-hole pumps are changed over from operation conditions with constant extraction to operation conditions with constant bottom-hole pressure. Injection wells with non-express circulation behind the string or crossflows are defined. The defined injection wells are started for pumping in periodic mode with discrete water flow to a formation with variation from maximum possible flow to 0. Duration of operation of production wells changed over to operation conditions with constant bottom-hole pressure is controlled. At increase of duration of operation of production wells, injection rate is determined as per increasing formation pressure. At positive injection rate injection wells with non-express circulation behind the string or crossflows are put into operation without any repair, and production wells are continued to be operated under operation conditions with constant bottom-hole pressure.

EFFECT: possibility of determining injection rate of injection wells and influence on injection of circulation behind the string or crossflows.

1 ex