Downhole anchor with strengthened slips for well tool
AssigneeWeatherford Technology Holdings, LLC
InventorJustin R. SCRUGGS
Life of this patent
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Abstract
A well tool can include a downhole anchor with at least one outwardly extendable slip including longitudinally spaced apart grip structures, and a longitudinally extending beam which connects the grip structures to each other. The beam has a radial thickness which is greater than a lateral width of the beam. A slip retainer retains the slip, and a spring inwardly biases the slip relative to the slip retainer. The spring surrounds the slip and the slip retainer. An area moment of inertia of the beam with respect to a lateral axis through a centroid of the beam is greater than an area moment of inertia of the beam with respect to a radial axis through the centroid of the beam.
Claims21
A well tool, comprising:
- a downhole anchor including at least one outwardly extendable slip configured to grip a well surface,
- the slip comprising longitudinally spaced apart grip structures, and a longitudinally extending beam which connects the grip structures to each other, and
- the beam having a radial thickness which is greater than a lateral width of the beam.
A well tool, comprising:
- a downhole anchor including at least one outwardly extendable slip configured to grip a well surface, a slip retainer that circumferentially positions the slip in the anchor, and a spring that inwardly biases the slip relative to the slip retainer,
- in which the spring surrounds the slip and the slip retainer.
A well tool, comprising:
- a central longitudinal axis;
- and
- a downhole anchor including at least one outwardly extendable slip configured to grip a well surface, the slip comprising longitudinally spaced apart grip structures, and a longitudinally extending beam which connects the grip structures to each other, and
- in which an area moment of inertia of the beam with respect to a lateral axis through a centroid of the beam is greater than an area moment of inertia of the beam with respect to a radial axis through the centroid of the beam, each of the lateral axis and the radial axis being perpendicular to the central longitudinal axis.
Dependencies are inferred from the claim text.