Downhole sucker rod pumping unit for dual OIL RECOVERY FROM TWO

摘要

Technical result of the proposed utility model is achieved by the fact that in the known borehole pump installation for dual production of oil and gas from the two layers comprising a packer, uncoupling the upper and lower layers, the two series-connected pump: upper and lower, each of which comprises the plunger and the cylinder, wherein the lower plunger pump is configured with a diameter smaller than the diameter of the top of the pump plunger, the bottom of the pump cylinder is formed with a diameter smaller than the upper diameter of each pump cylinder The first of the pumps is provided with suction and delivery valves, the suction valve to withdraw fluid from the upper reservoir, arranged laterally in the lower part of the cylinder of larger diameter in the plunger of the lower pump directly under the discharge valve is installed on-off switch, which interacts with the rod disposed in the lower part lower pump cylinder above the suction valve. Technical advantage of the expected utility model is the ability to periodically quantitative account of each product formation.