Surface communication apparatus and method for use with drill string telemetry
US7817062B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2010 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | May 25, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An operation of drilling an earth borehole uses a drilling rig, a drill string of drill pipes having its generally upper end mechanically coupleable with and suspendable from the drilling rig, a drive string portion of the drill string, mechanically coupleable with the topmost drill pipe of said drill string, and a drive mechanism mechanically coupleable with the drive string for rotating the drive string and the drill string. A system for generating electric power in the region of the drive string includes an electric generator, which includes a rotating generator component mounted on said drive string for rotation therewith and a stationary generator component mounted on a stationary portion of the drilling rig. The rotating generator component produces electric power in the region of the drive string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.