Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same
US8794356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2011 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Jul 30, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/633
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Earth-boring tools include a body, one or more blades projecting outwardly from the body, and cutting elements carried by the blade. The cutting elements include at least one shearing cutting element and at least one gouging cutting element. Methods of forming an earth-boring tool include mounting a shearing cutting element comprising an at least substantially planar cutting face to a body of an earth-boring tool, and mounting a gouging cutting element comprising a non-planar cutting face to the body of the earth-boring tool. The gouging cutting element may be positioned on the body of the earth-boring tool such that the gouging cutting element will gouge formation material within a kerf cut in the formation material by the shearing cutting element, or between kerfs cut in the formation material by a plurality of shearing cutting elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.