Multi-set PDC drill bit and method
US8327956B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jul 9, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A PDC bit includes a plurality of blades including primary blades and secondary blades. The included primary blades are set with PDC cutters in accordance with a “single set” methodology. The included secondary blades, however, are set with PDC cutters using a type of “plural set” methodology such that the radial positions of cutters on a secondary blade match the radial positions of cutters on a single set primary which is immediately preceding that secondary blade. Plural secondary blades can be positioned to follow a single primary blade, and the cutters on those plural secondary blades will have radial positions matching the cutters of the immediately preceding single set primary blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.