Cutting tables including ridge structures, related cutting elements, and earth-boring tools so equipped
AssigneeBaker Hughes, A Ge Company, LLC
InventorXu Huang
Life of this patent
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Abstract
A cutting table for use in subterranean formations comprises a base structure of hard material and at least one ridge structure of hard material. The base structure comprises a side surface, an upper surface, and a cutting edge between the upper surface and the side surface. The at least one ridge structure vertically extends from the base structure and is positioned horizontally inward of the cutting edge. A cutting element for use in subterranean formations and an earth-boring tool are also described.
Claims14
A cutting table for use in subterranean formations, the cutting table comprising:
- a base structure of hard material comprising a side surface, an upper surface, and a cutting edge comprising at least one chamfered surface between the upper surface and the side surface;
- and
- at least one ridge structure of hard material vertically extending from the base structure and positioned horizontally inward of the at least chamfered surface of the cutting edge, the at least one ridge structure exhibiting an at least partially arcuate vertical cross-sectional shape, wherein the at least one ridge structure continuously extends in an arcuate path oriented substantially parallel to the side surface of the base structure.
A cutting element for use in subterranean formations, the cutting element comprising:
- a supporting substrate;
- and
- a cutting table over the supporting substrate, and comprising:
- a base structure of hard material comprising a side surface, an upper surface, and a cutting edge comprising at least one chamfered surface between the upper surface and the side surface;
- and
- at least one ridge structure of hard material vertically extending from the base structure and positioned horizontally inward of the at least one chamfered surface of the cutting edge, the at least one ridge structure exhibiting an at least partially arcuate vertical cross-sectional shape, wherein the at least one ridge structure continuously extends in an arcuate path oriented substantially parallel to the side surface of the base structure.
An earth-boring tool comprising:
- a structure;
- and
- at least one cutting element secured to within the at least one pocket in the structure, and comprising:
- a supporting substrate;
- and
- a cutting table of hard material over the supporting substrate and comprising:
- a base structure comprising a side surface, an upper surface, and a cutting edge comprising at least one chamfered surface between the upper surface and the side surface;
- and
- at least one ridge structure vertically extending from the base structure and positioned horizontally inward of the at least one chamfered surface of the cutting edge, the at least one ridge structure exhibiting an at least partially arcuate vertical cross-sectional shape, wherein the at least one ridge structure continuously extends in an arcuate path oriented substantially parallel to the side surface of the base structure.
Dependencies are inferred from the claim text.