FIELD: oil-producing industry. SUBSTANCE: method includes well bailing with sealed wellhead. For lifting fluid, cylinder is used in the form of one or several pipes depending on required production rate. Pipes are connected with one another and fixed with respect to wellhead. Lowered in cylinder is piston connected with drive. Cylinder is fixed relative to drive and released relative to wellhead. Cylinder with piston is lowered into well to under level of fluid, cylinder is filled with fluid and lifted to wellhead. It is hermetically fixed to wellhead and released relative to drive. Piston is lifted and fluid is displaced into system of fluid reception. EFFECT: higher productivity and possibility of operation into closed collection system including that under excessive pressure in completion and operation of wells. 3 dwg
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