FIELD: oil and gas industry.
SUBSTANCE: while implementing the method a tubing string is run in to a well up to a bottomhole with a tube having a diameter more than the diameter of the tubing string with triangular windows and inner sharp tabs faced upwards under an angle of 25-30° to the vertical, circulation of the borehole fluid with a consumption rate within limits from 3.5 up to 8 l/s through the annular space, tube and tubing string through a holding tank in the volume not less than the well volume and lifting of the tubing string with the tube from the well.
EFFECT: raised efficiency of the well cleaning.
1 dwg
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