FIELD: intermittent production of oil with the help of mechanical interface. SUBSTANCE: two flow strings run from wellhead to zone close to oil production zone where component is installed which allows their interconnection to provided for lowering of flexible mechanical interface along one of strings, and lifting, along the other string, by pushing, during its passing, all oil contained in strings. Interface is moved due to application of high pressure. EFFECT: higher efficiency of oil production, and reduced cost of produced oil. 2 cl, 7 dwg
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