US 2025/0154833 A1 · DOWNHOLE HYDRAULIC MECHANICAL LOCK

Abstract

An improved downhole locking mechanism which may include a housing releasably connected to a downhole tool. The housing includes a first housing connected to a second housing. A sleeve disposed within the second housing. A coupling connecting the sleeve and a completion or another assembly. A piston disposed within the sleeve and retained in a locked position via a shear assembly. The piston maintains a retainer in the locked position, where the retainer engages both the sleeve and the lower housing. Hydraulic pressure within the bore of the locking mechanism causes the piston to shear the shear assembly and axially shift the piston towards the upper housing. Shifting the piston causes the retainer to move radially inward to an unlocked position and disengaging the sleeve from the lower housing and unlocking the locking mechanism.

Claims18

Dependent claims

A locking mechanism for use with a tubular positionable in a wellbore, the locking mechanism comprising:

an upper housing couplable to the tubular;
a lower housing coupled to the upper housing;
a transfer ring disposed within the lower housing;
a sleeve disposed within the lower housing and adjacent to the transfer ring;
a coupling coupled at a first end to the sleeve;
a piston disposed within the sleeve and retained in position via a shear assembly;
and
a retainer retained in a locked position via the piston to prevent relative axial movement of the lower housing and the sleeve when a compressive load is applied to the upper housing.

5 more elements

Dependencies are inferred from the claim text.

Downhole hydraulic mechanical lock

Life of this patent

Downhole hydraulic mechanical lock

Life of this patent

Abstract

Claims18