FIELD: oil and gas industry, particularly capital well repair, namely separating cavity between well tool and string of well pipes.
SUBSTANCE: packer includes body with grooves and annular teeth; piston with levers; pressing racks, ball, shear bushing; packing member with upper pressing member and lower support. Packer member has sharp pins embedded in staggered pattern by curing process in lower part of outer surface of packer member. Pin heights are chosen so that pins project 1 mm over packing member surface.
EFFECT: increased reliability of packer coupling with inner surface of production string, widened range of application thereof.
1 dwg
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