FIELD: oil and gas production industry. SUBSTANCE: according to method, well strainer is lowered into required interval of well in pump-compressor or other pipes. Located on aforesaid pipes is self-sealing collar. Positioned between strainer and self-sealing collar is circulation valve. Sloughing of sand suspension is effected by washing liquid under hydraulic pressure. Sloughing of sand suspension is maintained by periodic pumping of washing liquid through circulation valve. At moment of sand suspension sloughing, self-sealing collar is fixed above productive bed. EFFECT: higher efficiency. 2 dwg
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