Drilling system
US8336642B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2006 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Mar 29, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B4/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling system for drilling a borehole in an underground formation, comprises a rotary drill bit, a drilling drive mechanism that is capable of applying both rotating the drill bit and applying an axial force to the drill bit, and a control system that is capable of controlling the drive mechanism so as to control rotation of the drill bit and the axial force applied to the drill bit in order to control the depth of cut created by the drill bit when drilling through the formation. A method of drilling a borehole in an underground formation with a rotary drill bit, comprises applying rotation and an axial force to the drill bit and controlling the rotation and axial force so as to control the depth of cut created by the drill bit when drilling through the formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.