FIELD: oil, gas and coke-chemical industries.
SUBSTANCE: invention relates to double-packer assembly for shutting off unsealed sections of production strings of oil and gas wells. Two-packer arrangement for shutting off unsealed sections of production strings of oil and gas wells includes an upper packer, which includes ring sealing elements located on external surface of the tubular housing and made of an alloy based on chemically active metal. Said metal can be soluble in fluid for hydraulic fracturing of formation containing acid. Tubular housing of upper packer has longitudinal slit-like holes uniformly located along the circle.
EFFECT: technical result is improved operation reliability.
4 cl, 2 dwg
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