IMPLOSION REUSABLE WATER-TURBINE PRESSURE GENERATOR Russian patent published in 2008 - IPC E21B37/00 F16F5/00 

FIELD: oil and gas-condensate well development and repair, particularly to increase oil recovery from oil and gas-condensate reservoirs during oil-production well operation by deep overburden creation in well bottom zone.

SUBSTANCE: pressure generator comprises shutoff pipeline with reservoir fluid pressure inlet orifices, implosion chamber cylinder connected with shutoff pipeline by means of sub, piston connected with pump rod and working chamber. The working chamber has working cylinder with windows and pressure concentrators, shutoff valve with rod and sleeve, which communicates implosion chamber cylinder with working chamber. Working chamber has air-hydraulic damping means including hydraulic cylinder with expanded upper part and including piston. Air-hydraulic damping mans also has pneumatic cylinder with floating piston. Piston is made as a single whole with shutoff valve rod. Floating piston is at predetermined pressure and may cooperate with shutoff valve rod. Hydraulic and pneumatic cylinders are fixedly connected with each other.

EFFECT: increased pressure generator operational reliability.

2 cl, 2 dwg