DEVICE FOR REMOVING ASPHALT-RESIN AND HYDRATE-PARAFFIN CREATIONS IN OIL AND GAS WELLS

摘要

FIELD: oil and gas production industry. SUBSTANCE: for melting of asphalt-resin and hydrate-paraffin creations, installed inside body of device on heater is pipe with formation of inner heating chamber and outer cooling chamber. Body and pipe on their lower ends are hermetically connected with heat-transmitting head-piece. Head-piece has through-passages for delivery of heat-carrier from well into inner heating chamber and for branching of heated heat-carrier from outer cooling chamber into well. Upper end of pipe has passages for connection of inner heating chamber and outer cooling chamber. Device brings its action to bear on asphalt-resin and hydrate-paraffin creations not only through heated head-piece and body, but also by washing-out streams of liquid and steam flowing via through-passages in head-piece and passages in upper end of pipe. EFFECT: higher efficiency. 8 cl, 4 dwgy