FIELD: oil-and-gas industry.
SUBSTANCE: invention can be used for operation of wells equipped with borehole pumps with increased amount of sand in extracted products. Method flushing the filter arranged at borehole pump inlet comprises lowering of plug-in sucker-rod pump with filter at is inlet into the well. Well is stopped after filter clogging with sand. String is partially lifted to allow pump housing detachment from lock support to make concentric flow channel between pump housing and string to allow fluid flow from string into well. String is kept as-lifted unless fluid dynamic level in well annulus of static position. Now, said string is lowered to initial position to start the pump.
EFFECT: higher efficiency of flushing.
1 dwg
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