FIELD: oil and gas industry.
SUBSTANCE: invention relates to the oil industry and can be used in the gaging of the production string during the current, major overhaul of wells. Gaging includes a housing, calibration elements placed on it and a coupling sleeve. In this case, the body is made hollow, calibrating elements made in the form of rings, for a suitable diameter of the production column, with technological cuts having a thickness of 5 mm or more, installed between the dampers.
EFFECT: technical result consists in increasing the efficiency of templateing the production column before the downhole of deep-well or technological equipment during the current, major repair of wells.
7 cl, 2 dwg
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