Anti-preset mechanism for production packers
AssigneeHalliburton Energy Services, Inc.
InventorMohammad Abdul Rashid
Life of this patent
Estimating the term…
Abstract
Some implementations include a packer comprising: an upper mandrel; at least one seal coupled with the upper mandrel and configured to radially expand into a casing of a wellbore; a prop configured to axially traverse, in response to hydraulic pressure, along the upper mandrel and cause the seal to radially expand; at least one shear screw configured to hold the prop stationary and in contact with the upper mandrel until sheared; and a snap ring coupled with the prop and configured to prevent axial traversal of the prop along the upper mandrel and radial expansion of the seal.
Claims20
A packer comprising:
- an upper mandrel;
- at least one seal coupled with the upper mandrel and configured to radially expand into a casing of a wellbore;
- a prop including a groove and configured to axially traverse, in response to hydraulic pressure, along the upper mandrel and cause the seal to radially expand;
- at least one shear screw configured to hold the prop stationary and in contact with the upper mandrel until sheared;
- and
- a snap ring disposed in the groove of the prop and configured to prevent axial traversal of the prop along the upper mandrel and radial expansion of the seal.
A system comprising:
- a packer including
- an upper mandrel;
- at least one seal coupled with the upper mandrel and configured to radially expand into a casing of a wellbore;
- a prop including a groove and configured to axially traverse, in response to hydraulic pressure, along the upper mandrel and cause the seal to radially expand;
- at least one shear screw configured to hold the prop stationary and in contact with the upper mandrel until sheared;
- a snap ring disposed in the groove of the prop and configured to prevent axial traversal of the prop along the upper mandrel and radial expansion of the seal;
- and
- one or more wellbore components configured to operate the packer in the wellbore.
A method for operating a packer in a wellbore, the method comprising:
- inserting the packer into the wellbore, wherein the packer includes
- an upper mandrel;
- at least one seal coupled with the upper mandrel and configured to radially expand into a casing of the wellbore;
- a prop including a groove and configured to axially traverse, in response to hydraulic pressure, along the upper mandrel and cause the seal to radially expand;
- at least one shear screw configured to hold the prop stationary and in contact with the upper mandrel until sheared;
- a snap ring disposed in the groove of the prop and configured to prevent axial traversal of the prop along the upper mandrel and radial expansion of the seal;
- and
- causing the seal to expand into the wellbore.
Dependencies are inferred from the claim text.