METHOD FOR INCREASING THE EFFICIENCY OF HYDRAULIC TESTING OF TUBING AND CASING PIPES AND A APPARATUS FOR IMPLEMENTATION THEREOF Russian patent published in 2021 - IPC G01M3/28 E21B17/01 

FIELD: testing.

SUBSTANCE: group of inventions relates to the field of testing equipment and can be used in hydraulic testing of tubing and casing pipes used in the petroleum and gas industry. A stop (5) for the pipe (14) is installed in the body (1) of the sealing assembly with holes (2, 3) and a check valve (4), then a cuff (6) is pressed tightly to the stop (5). When installing the cuff (6), the material of the outer (7) annular whisker fills the cavity between the stop (5) and the body (1), then the spring ring (9) is installed into the chamfer on the edge of the central hole of the back part of the cuff (6). The ring is tightly secured by a pressure ring (10) and a centering nut (12), followed by feeding a pipe (14) to the stop (5) and securing by a damper bracket (13). The outer face (15) of the spring ring (9) has an angle of inclination equal to the angle of the chamfer of the cuff (6), the side face abuts tightly against the pressure ring (10), and the inner face consists of a flat surface (16) and a surface (17) with an angle of inclination.

EFFECT: increase in the efficiency of hydraulic testing of tubing due to the structural simplification of the sealing assembly and increase in the strength of the cuffs included in the structure.

2 cl, 4 dwg