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US 10,570,664 B2Granted
Wellbore reaming tool having shear cutters and gouging cutters
AssigneeShear Bits, Ltd.
InventorsJohn James Herman, Carl M. Hoffmaster, Kenneth M. Nevlud, Jason Kelley, Shon Carey
Life of this patent
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Abstract
A reaming tool includes a reaming tool body configured to be coupled within a drill string or a string of drilling tools. A plurality of reaming blocks is attached to the reaming tool body at circumferentially spaced apart locations. Each reaming block comprises at least one row of shear cutters and gouging cutters, the gouging cutters in the at least one row disposed rotationally ahead of the shear cutters in the at least one row.
Claims19
A reaming tool, comprising:
- a reaming tool body configured to be coupled within a drill string or a string of drilling tools;
- a plurality of reaming blocks attached to the reaming tool body at circumferentially spaced apart locations;
- and
- wherein each reaming block comprises at least one row of shear cutters and at least one row of gouging cutters, the gouging cutters in the at least one row disposed rotationally ahead of the shear cutters in the at least one row, the gouging cutters being disposed at least one of, (i) longitudinally directly ahead of the shear cutters and (ii) longitudinally alternating between adjacent shear cutters.
1 more element
Dependencies are inferred from the claim text.