GROOVE ON THE TUBING ANCHOR TRUNK Russian patent published in 2018 - IPC E21B23/00 E21B33/12 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to the tubing anchors grooves. Groove on the tubing anchor trunk includes shortened and elongated sections, connected by the inclined groove, mating by the two U-shaped grooves, the upper and the lower, the upper of which has a vertical section, V-shaped notch and through the inclined groove is connected to the vertical elongated section, and the lower one consists of the inclined, vertical sections and the V-shaped notch, formed by two inclined grooves, also connected to the vertical elongated section. In the upper part the elongated section splits off with the O-shaped trapezoidal protrusion formation and ends with the λ-shaped elongated groove, which is through the inclined section is connected to the long groove N, having the commensurate with the U-shaped section lower part length, wherein the groove N is parallel to the elongated and shortened sections A and B.

EFFECT: technical result is increase in the downhole tubing anchor operational reliability.

1 cl, 1 dwg