UNIVERSAL TOOL FOR SERVICING A PIPE COLUMN IN A WELL ON THE SHELF Russian patent published in 2021 - IPC E21B23/02 E21B33/68 

FIELD: mining industry.

SUBSTANCE: invention relates to a universal tool for servicing a pipe column in a well on the shelf. The tool contains a core on which the housing and the spring are mounted, and one end of the spring rests on the protrusion of the housing, the second end contacts the protrusion on the core, the seal, the stops located in the housing with the possibility of moving outside the housing in the radial direction so that the segments mounted on the stops have the ability to interact with the counter surfaces of the pipe column and fix the tool in the pipe column, the lower housing, the hook, the nut. The seal is located in the upper part of the housing with the possibility of interaction with the counter surface of the pipe column. The lower housing is fixed to the housing and has a recess to accommodate the hook. The hook has the ability to protrude beyond the outer contour of the lower body in such a way that the protrusion on it provides engagement with the mating part. The hook has a conical surface for interaction with the nut on one side and a conical surface for interaction with the mating surface of the mating part on the other side. The nut has the ability to move along the thread on the body in such a way that when it is moved, the hook is either blocked or unblocked.

EFFECT: number of tools used for servicing the pipe column in the well on the shelf is reduced, the versatility of the tools is increased, the material from which the tools are made is saved.

3 cl, 4 dwg