METHOD FOR DEVELOPMENT OF OIL DEPOSIT AND COMPENSATOR-RADIATOR OF OSCILLATIONS FOR WELL Russian patent published in 2009 - IPC E21B43/20 E21B28/00 

FIELD: oil and gas industry.

SUBSTANCE: invention is related to oil production industry and may be used in development of oil deposit. Method includes supply of working agent to deposit under pressure through pressure wells with application of piston pumps, products displacement from deposit and its extraction through production wells with application of sucker-rod pumps. At that forces applied to working agent and extracted produce are periodically varied, by pressure increase in production wells and its reduction in pressure wells and vice versa. Low frequency vibrations caused by operation of sucker-rod and piston pumps are compensated accordingly in production and pressure wells and, additionally, deposit near-well zones are treated with radiations of sonic frequency. Compensator-radiator includes body in the form of nozzle, having inlet section in direction of injected working agent flow in pressure well or in direction of extracted products in production well, confusor, expansion chamber and outlet section. At that nozzle has possibility of installation in wellhead and/or in composition of pump-compressor pipes in zone of pressure or production well perforation. Internal angle of confusor convergence makes 21-23 degrees per side. Outlet diametre of confusor is arranged with the possibility to provide for flow of working agent or extracted products with the rate of at least 80 m/sec with the pressure in flow area that does not exceed atmospheric pressure and formation of radiations in sonic range. Expansion chamber is arranged with the possibility of working agent degassing gas accumulation in it or accumulation of associated gas of produced products for compensation of low frequency vibrations from operation of pumps.

EFFECT: increased efficiency of cyclic waterflooding of non-uniform oil deposit due to reduction of negative effect at filtration processes with the possibility of development control with suppression of impulse vibrations.

2 cl, 1 dwg, 1 ex