Drill bit having rotational cutting elements and method of drilling
US8286735B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2011 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Dec 19, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/633
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.