METHOD FOR CONTROL OF WATER-DRIVEN PUMP SET OF OIL-PRODUCING WELLS AND DEVICE FOR ITS REALISATION Russian patent published in 2009 - IPC F04B49/02 F04B47/04 

FIELD: oil and gas industry.

SUBSTANCE: invention is related to oil-producing industry and may be used preferably in production of oil product from deep wells with application of water-driven pump sets controlled from the surface. Water-driven pump contains body with stem, to ends of which power piston is fixed, as well as piston with forcing valve. Stem of pistons travels according to shuttle pattern via coupling fixed in body cylinder, which is equipped by suspension cover with weights and fit cover with valve. Pressurised fluid supply to water-driven valve is done via distributor by high-pressure pump along two lines alternately and spasmodically from rated maximum to minimum for oil product suction into pump cavity or its displacement from pump cavity into well cavity. Alternating and spasmodic supply of fluid along lines to pump hydraulic drive is provided by distributor equipped by slide valve, which interacts with pressure sensors in lines of fluid supply.

EFFECT: higher reliability of water-driven pump set control, expansion of technological resources of oil products withdrawal from deep horizons with reduction of power inputs.

4 cl, 5 dwg