Dual telemetry receiver for a measurement while drilling (MWD) system
US9957795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2016 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Aug 26, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A receiver for a dual telemetry measurement while drilling (MWD) system and method for operating same are provided. The receiver includes a mud pulse receiver module for receiving a first signal sent using mud pulse telemetry via a pressure transducer configured to detect mud pulses transmitted through a mud column in a drill string; an electromagnetic (EM) receiver module for receiving a second signal sent using EM telemetry via the drill string and a formation; and a processer for obtaining the first signal when operating in a mud pulse mode and the second signal when operating in an EM mode and having MWD data displayed at a surface system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.