FIELD: oil and gas industry.
SUBSTANCE: method of pressure waves generating in the well annulus means the installation at the bottom end of the tubing channel of a Helmholtz jet generator such that its feed nozzle and resonance chamber are located inside the tubing channel, and an outlet hole is directed from the tubing channel to the annulus. Fluids are pumped through the Helmholtz jet generator with increasing of the flow speed in the feed nozzle, and appropriate loss of full pressure. Periodic oscillations are generated inside the Helmholtz jet generator. The pressure waves are formed at the output of the outlet hole in the annulus. Wherein at the bottom end of the tubing channel several Helmholtz jet generators are installed such that for each generator the feed jet and resonance chamber are arranged inside the pipe across the channel, and an outlet hole is directed from the tubing channel to the side in the direction of the casing pipe side wall. The fluid is pumped through several Helmholtz jet generators at the total area of their feed nozzles similar to the area of the tubing channel, with insignificant increasing of the flow speed and full pressure loss.
EFFECT: increased efficiency of the pressure waves formation in the well annulus without the fluid flow throttling in the tubing.
4 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND DEVICE WITH RING FOR GENERATION OF PRESSURE WAVES AT BOTTOM OF WELL | 2014 |
|
RU2572250C2 |
| METHOD AND DEVICE FOR TWO-CHAMBER HELMHOLZ SPRAY OSCILLATOR FOR GENERATING PRESSURE WAVES AT THE BOTTOM HOLE | 2015 |
|
RU2610598C2 |
| METHOD AND DEVICE FOR GENERATING WAVE FIELD AT INJECTOR BOTTOMHOLE WITH AUTOMATIC TUNING OF GENERATION CONSTANT FREQUENCY | 2013 |
|
RU2544201C2 |
| METHOD AND DEVICE FOR GENERATING WAVE FIELD AT INJECTOR BOTTOMHOLE WITH AUTOMATIC TUNING OF GENERATION RESONANT MODE | 2013 |
|
RU2544200C2 |
| METHOD AND DEVICE WITH SOLID BOTTOM TO GENERATE PRESSURE WAVES IN THE INJECTION WELL BORE | 2016 |
|
RU2616024C1 |
| METHOD AND DEVICE FOR WAVE FIELD GENERATION AT INJECTOR BOTTOMHOLE WITH PERMANENT RATE OF GENERATION AT CHANGEABLE FORMATION PRESSURE | 2013 |
|
RU2540746C2 |
| METHOD FOR GENERATING AND MODULATING PRESSURE WAVES IN AN INJECTION WELLBORE AND A DEVICE FOR ITS IMPLEMENTATION | 2022 |
|
RU2789492C1 |
| METHOD AND DEVICE OF BOREHOLE ACOUSTIC RADIATOR WITH A SMOOTH NOZZLE INPUT FOR GENERATING WAVES OF PRESSURE IN ANNULUS OF INJECTION WELL | 2017 |
|
RU2670623C9 |
| METHOD OF GENERATING PRESSURE WAVES IN THE ANNULAR SPACE OF AN INJECTION WELL AND A JET ACOUSTIC RADIATOR WITH A SHORT NOZZLE AND A SLOT RESONATOR FOR ITS IMPLEMENTATION | 2019 |
|
RU2705126C1 |
| METHOD AND DEVICE FOR ALIGNMENT OF STEAM ASSISTED GRAVITY DRAINAGE WITH VIBRATION-WAVE EFFECT ON PRODUCTIVE FORMATION IN HORIZONTAL WELLS | 2015 |
|
RU2610045C2 |
