FIELD: oil industry, particularly for operating wells with low production rate in oil and gas-condensate fields.
SUBSTANCE: device has casing column with perforated orifices, pump connected to oil well pipes. Pump includes cylindrical case with closed bottom and orifices formed in walls, valve system and plunger connected with pumping unit by rods. Device may form centripetal low-pressure impulses in liquid flow during plunger lifting. Installed on pump case is insert. Insert and inner walls of casing define 5 - 10 mm gap. Insert closes 80-90% of space between pump case and casing. Insert may form low-pressure impulses in liquid flow and provides mutual interaction of flows with turbulence creation. Method involves applying centripetal low-pressure impulses; applying low-pressure impulses to gap around casing; creating turbulence by provision of flows interaction.
EFFECT: increased safety and efficiency.
6 cl, 1 dwg, 3 ex
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