Drilling system comprising a plurality of borehole telemetry systems
US7894302B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2006 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Dec 21, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling system utilizing a plurality of independent telemetry systems. The drilling system uses a drill collar as a pressure housing for downhole components of the system. One or more sensors are disposed within the pressure housing. These sensors can be MWD sensors, LWD sensors, or both MWD and LWD sensors. A plurality of independent borehole telemetry systems is used to telemeter sensor response data to the surface of the earth. Each sensor cooperates with a downhole component of at least one of the independent telemetry systems. The plurality of telemetry systems can be of the same type, such as a mud pulse systems. Alternately, the telemetry systems can be of different types including a mud pulse system and an electromagnetic system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.