FIELD: mining.
SUBSTANCE: technology enables tool fixation to required alignment in string lifting pipes. String lifting pipes comprises locking section made with possibility of fixing tool in a certain orientation. Fixing section comprises multiple fastening sections made with possibility of receiving multiple shaped plates, which are engaged with possibility of removal and are replaceable. Shaped plates can be arranged to create profile for engagement with corresponding switch connected to tool. Nevertheless, shaped plate can be replaced by changing profile of key. Furthermore, invention can use various combinations of shaped plates to create various profiles switch from one locking section to another in columns of lifting pipes with more than one locking section.
EFFECT: technical result consists in improvement of efficiency of fixation of downhole devices.
20 cl, 8 dwg
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