Matrix fixed cutter drill bits and methods for manufacturing same
US9631435B2 · kind B2 · utility
0Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2013 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Aug 27, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/54
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fixed cutter drill bit for drilling a borehole in earthen formations includes a blank assembly and a matrix crown fixably mounted to the blank assembly. The blank assembly includes an annular mandrel and a plurality of elongate studs fixably coupled to the mandrel. The mandrel has a first end distal the crown and a second end engaging the crown. In addition, the mandrel includes a plurality of bores extending axially from the second end. Each elongate stud has a first end disposed within one of the bores and a second end disposed in the crown distal the mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.