PREVENTION METHOD FOR ASPHALT-RESIN-PARAFFIN SEDIMENT FORMATIONS AND RELATED DEVICE FOR IMPLEMENTATION THEREOF Russian patent published in 2009 - IPC E21B37/00 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to gas-and-oil producing industry, specifically to prevention methods and facilities for asphalt-resin-paraffin sediment formations. Method involves that well production is exposed to low-frequency electromagnetic pulses by using ferromagnetic core contacting to well production through flow string made of ferromagnetic material, and within well-stream gathering and transportation system through pipe installation made of ferromagnetic material. Surface source and electromagnetic pulse radiator are applied respectively: magnetostriction oscillator representing low-frequency sweep generator and magnetostriction transducer representing induction coils with divergent and variable magnetic field wherein which ferromagnetic core is partially mounted as a part of specified flow string or a part of specified pipe installation. The low-frequency current generator is supplied with element passing half-period current to input of electromagnetic pulse radiator containing set of series induction coils made of copper wire and is provided with fibre spacer on the frame made of ferromagnetic material, covering ferromagnetic core contacting to well production, designed as ferromagnetic pipe installation and/or ferromagnetic flow string. Variable magnetic field of coils contains copper frames of this field divergence corresponding to coil number.

EFFECT: higher efficiency of well operation, simplification of sediment prevention method.

5 cl, 5 dwg