FIELD: oil production industry. SUBSTANCE: to increase efficiency of operation by regulated withdrawal of water excluding formation of water coning in oil zone of inflow and recovery of oil with high water cutting, branch pipe with holes of throttling unit is located under packer and safety valve is made in form of spring-loaded choke bean installed for separating from seat in case of pressure differential determined from relation given in invention description. EFFECT: higher efficiency. 2 dwg
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