DOWNHOLE CUTTING TOOLS HAVING ROLLING CUTTERS WITH NON-PLANAR CUTTING SURFACES
First Claim
Patent Images
1. A cutting tool comprising:
- a tool body having a plurality of blades extending radially therefrom;
each of the plurality of blades having a plurality of cutter pockets formed therein; and
at least one rotatable cutting element having a cutting table with a convex cutting surface mounted in at least one of the plurality of cutter pockets, wherein the at least one rotatable cutting element is mounted in a nose or shoulder region of the at least one of the plurality of blades.
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Abstract
A cutting tool may include a tool body having a plurality of blades extending radially therefrom; each of the plurality of blades having a plurality of cutter pockets formed therein; and at least one rotatable cutting element having a cutting table with a convex cutting surface mounted in at least one of the plurality of cutter pockets, wherein the at least one rotatable cutting element is mounted in a nose or shoulder region of the at least one of the plurality of blades.
14 Citations
20 Claims
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1. A cutting tool comprising:
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a tool body having a plurality of blades extending radially therefrom; each of the plurality of blades having a plurality of cutter pockets formed therein; and at least one rotatable cutting element having a cutting table with a convex cutting surface mounted in at least one of the plurality of cutter pockets, wherein the at least one rotatable cutting element is mounted in a nose or shoulder region of the at least one of the plurality of blades. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A cutting tool comprising:
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a tool body having a plurality of blades extending radially therefrom; each of the plurality of blades having a plurality of cutter pockets formed therein; and at least one rotatable cutting element having a cutting table with a concave cutting surface mounted in at least one of the plurality of cutter pockets, wherein the at least one rotatable cutting element is mounted in the shoulder of the at least one of the plurality of blades. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A cutting tool comprising:
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a tool body having a plurality of blades extending radially therefrom; and a plurality of rotatable cutting elements, wherein the plurality of rotatable cutting elements have differing cutting surface geometries based on their radial position along the plurality of blades. - View Dependent Claims (17, 18, 19, 20)
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Specification