FIELD: oil production. SUBSTANCE: mud flow is lifted from the well to well mouth and transported over the surface through a pipeline. The flow is treated by two different physical fields. It is the combination of electric, magnetic fields, and pressure pulses. Electric and magnetic fields of 0.2 - 2.0 V/m and 20 - 50,000 A/m intensities are used respectively. Pressure pulses of not less than 3 MPa over the pressure of saturation of the mud by gas are used. EFFECT: higher productivity. 6 cl, 1 tbl, 3 dwg
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