DEVICE FOR FIXING BOREHOLE DEVICES IN A PUMPING AND COMPRESSOR PIPE STRING Russian patent published in 2022 - IPC E21B23/02 

FIELD: mining industry.

SUBSTANCE: device for fixing borehole devices in a column of tubing strings is claimed. The device includes a detachable part consisting of a spring fork with a rope head and a locking mechanism including a cantilever spring armature with elastic hooks, a movable adapter, and a downhole device holder. The movable adapter is made with recesses and with a protruding step in the lower part and is installed with the possibility of axial movement relative to the cantilever spring armature under the influence of a return spring located inside it. The spring fork has teeth located on its consoles, made with the possibility of engaging or disengaging in recesses on a movable adapter after compression or straightening, respectively, the spring anchor consoles. On the inner surfaces of the spring armature consoles there are stops that prevent the reverse compression of the spring armature consoles when they interact with the protruding stage of the movable adapter at its lowest position. On the outer sides of the spring armature consoles there are teeth made with the possibility of fixing in the neck of the tubing string after straightening the spring anchor consoles.

EFFECT: increase in the reliability of fixing devices lowered into the well at a given point, regardless of the angle of inclination of the tubing string.

1 cl, 10 dwg