UNIVERSAL DEVICE FOR TURNING-OFF OR TURNING-UP OF WELLHEAD ACCESSORIES Russian patent published in 2020 - IPC E21B33/03 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry, in particular to wellhead equipment, providing tight connection device and wellhead equipment of different standard sizes, non-standard (low) location of wellhead accessories, in particular when outflow of borehole products occurs. Universal device for turnout or turning-up of wellhead accessories comprises a branch pipe, mounting flange with peripheral holes for fastening bolts and side handles. Branch pipe in lower part is rigidly connected to mounting flange, upper part of branch pipe is equipped with head with external thread, and on inner side of branch pipe head there is a bore of hexagonal cross-section with possibility of mounting extension piece. Side handles are made in the form of mounting loops, which are rigidly connected to the branch pipe. In lower part branch pipe is equipped with radial expansion to mounting flange, on top of expansion there is a process recess, on which ring is fixed, in which there are uniformly circumferential radial holes for storage and transportation of attachment bolts. Peripheral holes of mounting flange are oval-shaped, and lower part of mounting flange is equipped with sealing cuff. Extension of universal device comprises branch pipe, and upper part of branch pipe is equipped with head with external thread, and inner side of branch pipe head is made hexagonal cross-section, and lower part is made from outside with hexagonal cross-section.

EFFECT: technical result consists in improvement of efficiency of turn and turn of wellhead equipment due to creation of device, which provides sufficient torque, providing "initiation" of a mouth crosspiece inside a coupling threaded connection due to the arising circumferential force, due to the device universality, providing strength, reliability and tightness of connection of device and wellhead equipment at closure of wellhead, simplification of design and its compactness.

1 cl, 4 dwg