FIELD: oil and gas industry.
SUBSTANCE: device comprises a body having an upper support part and a shoe, a passage, at least one first and second holes of the body, at least one filter installed in the body, a tool installed movably in the passage of the body, having a passage with at least one hole and moved into the first selective position in the passage of the body, isolating at least one hole in the tool with at least one first hole in the body towards the shoe, and moving the suspension from the passage in the tool to the borehole, and moved into the second selective position, isolating at least one hole in the tool with at least one second hole in the body in direction to the upper support part of the tool.
EFFECT: increased manufacturability and reliability of a structure, increased efficiency of gravel filling.
33 cl, 16 dwg
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