METHOD OF OIL AND GAS INFLUX DEVELOPMENT AND INTENSIFICATION, WATERPROOFING PROCEDURE AND RELATED DEVICE FOR IMPLEMENTATION THEREOF Russian patent published in 2009 - IPC E21B43/25 E21B49/00 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil and gas industry and can be used for well development, oil and gas influx intensification and waterproofing. Method of oil and gas influx development and intensification, well waterproofing procedure involves trip in hole of packer device body to shooting depth thus using external producing strings. Thereafter parker is installed and pressure tested for air-tightness. Central tubing row is racked and pressed. Working fluid is supplied with formation fluid pumping-out, while mixed fluid is supplied from well to surface through annular space. Annular space is fitted with external and central tubing rows. The device contains the body with pressure valve arranged between external radial channel and the channel connecting coaxial channels of jet pump nozzles and return valves. The body accommodates flushing pass hole, gallery and radial external and internal channels for fluid receiving and removal, jet pumps with diffuser. Each jet pump is in addition supplied with upper return valve arranged in longitudinal channel over diffuser. To activate jet pumps of the device, working fluid is supplied through pressure valve through annular space formed between flow string and external tubing row.

EFFECT: higher reliability of the device and reduction of well development time.

3 cl, 9 dwg