Isolated shearing mechanism for downhole tools
AssigneePlainsman Manufacturing Inc.
InventorsMark A. Lea-Wilson, Shane McAssey
Life of this patent
Estimating the term…
Abstract
A shearing mechanism in which a male component mates into a female component, the male component having a first groove extending around the male component and the female component having a second groove extending around the female component, the first groove and the second groove cooperating when the male component is inserted into the female component to define an annular recess. A shearing component is provided within the annular recess, the shearing component having a shear load that is controlled by the material and size of the shearing component. An opening is provided within one or both of the male component and female component, the opening being aligned with the annular recess. Stress relief is provided.
Claims15
A shearing mechanism for securing two components that shears at a pre-determined axial load, the shearing mechanism comprising:
- a male component that mates into a female component, the male component having a first groove extending around the male component and the female component having a second groove extending around the female component, the first groove and the second groove cooperating when the male component is inserted into the female component to define an annular recess;
- an opening within one or both of the male component and female component, the opening being aligned with the annular recess;
- and
- a shearing component within the annular recess, the shearing component having a shear load that is controlled by the material and size of the shearing component.
A shearing mechanism, comprising:
- a male component mated with a female component;
- the male component and female component having cooperating receiving parts that together define a receiving space extending around the male component;
- and
- a breakable part located in the receiving space, the breakable part contacting against each of the male component and the female component to convey axial forces between the male component and the female component below a first axial load and the breakable part being breakable under axial loads within an operating range of axial loads below the axial load break points of the male component and female component and above the first axial load, and the operating range corresponding to a pre-set range for breaking the shear coupling.
15-22. (canceled)
Dependencies are inferred from the claim text.