Mill blade torque support
AssigneeHalliburton Energy Services, Inc.
InventorsLoc Phuc Lang, William Wallace Dancer
Life of this patent
Estimating the term…
Abstract
An example whipstock assembly includes a whipstock providing a ramped surface and a longitudinal groove defined in the ramped surface. A lead mill is coupled to the whipstock with a shear bolt and providing one or more blades, and a bearing support is arranged within the longitudinal groove and provides opposing sidewalls that define a slot configured to receive one of the one or more blades and thereby prevent the lead mill from rotating with respect to the whipstock.
Claims20
A whipstock assembly, comprising:
- a whipstock providing a ramped surface and a longitudinal groove defined in the ramped surface;
- a lead mill coupled to the whipstock with a shear bolt and providing one or more blades;
- and
- a bearing support arranged within the longitudinal groove and providing opposing sidewalls that define a slot configured to receive one of the one or more blades and thereby prevent the lead mill from rotating with respect to the whipstock.
The whipstock assembly of claim 5, wherein the one or more bumper members are made of rubber or an elastomer.
A well system, comprising:
- an anchor assembly arranged within a wellbore;
- a whipstock assembly extendable within the wellbore to be secured to the anchor assembly, the whipstock assembly including a whipstock that provides a ramped surface and a longitudinal groove defined in the ramped surface, and a lead mill coupled to the whipstock with a shear bolt and providing one or more blades;
- and
- a bearing support arranged within the longitudinal groove and providing opposing sidewalls that define a slot configured to receive one of the one or more blades and thereby prevent the lead mill from rotating with respect to the whipstock.
A method, comprising:
- extending a whipstock assembly into a wellbore, the whipstock assembly including a whipstock that provides a ramped surface and a longitudinal groove defined in the ramped surface, and a lead mill coupled to the whipstock with a shear bolt and providing one or more blades;
- applying a torsional load to the whipstock assembly;
- assuming the torsional load with a bearing support arranged within the longitudinal groove and providing opposing sidewalls that define a slot configured to receive one of the one or more blades;
- and
- preventing the lead mill from rotating with respect to the whipstock with the bearing support.
Dependencies are inferred from the claim text.