Invention Grant
- Patent Title: Earth-boring tools having fixed blades and rotatable cutting structures and related methods
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Application No.: US15983639Application Date: 2018-05-18
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Publication No.: US10801266B2Publication Date: 2020-10-13
- Inventor: Gregory L. Ricks , Mitchell A. Rothe , Floyd C. Felderhoff
- Applicant: Baker Hughes, a GE company, LLC
- Applicant Address: US TX Houston
- Assignee: Baker Hughes, a GE company, LLC
- Current Assignee: Baker Hughes, a GE company, LLC
- Current Assignee Address: US TX Houston
- Agency: TraskBritt
- Main IPC: E21B10/14
- IPC: E21B10/14 ; E21B10/62 ; E21B10/567

Abstract:
An earth-boring tool includes a body, at least one blade, and at least one rotatable cutting structure. The blade extends axially from the body and extends radially outward from a center longitudinal axis of the earth-boring tool to less than an outer diameter of the earth-boring tool. The blade defines a first cutting profile. The at least one rotatable cutting structure assembly is coupled to the body and includes a leg extending axially from the body and a rotatable cutting structure rotatably coupled to the leg. The rotatable cutting structure defines a second cutting profile extending to the outer diameter of the earth-boring tool. The first cutting profile overlaps with the second cutting profile in a radial direction in an amount that is less than 20% of the outer diameter of the earth-boring tool. A method of making an earth-boring tool.
Public/Granted literature
- US20190352970A1 EARTH-BORING TOOLS HAVING FIXED BLADES AND ROTATABLE CUTTING STRUCTURES AND RELATED METHODS Public/Granted day:2019-11-21
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