FIELD: pipes.
SUBSTANCE: group of inventions relates to pipe for installation in well and tubular element fastening method. Pipe for installation in well and extraction of target fluid medium, containing tubular element from metal, installed by its crimping on pipe outer surface. On tubular element inner surface annular groove is formed, in which metal retaining ring or two fastening rings located next to each other are installed; wherein each fastening ring is made with, at least, partial slot in transverse direction with projecting locking elements on inner bearing surface and with, at least, one inclined surface, forming acute angle with bearing surface. Annular groove shape is, substantially, complementary relative to ring or two rings profile, and groove depth is less than ring or rings thickness. Protruding elements are made with possibility of, at least, partial introduction into pipe surface during metal element crimping on pipe.
EFFECT: technical result is improved operation reliability.
15 cl, 14 dwg
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