Toolstring communication in cable telemetry
US9154186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2012 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Aug 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for toolstring communication in cable telemetry. The methods involve positioning a cable telemetry system in a wellbore. The cable telemetry system can include a surface modem, a downhole toolstring of downhole tools, a downhole modem operatively coupled to the downhole toolstring, a cable operatively coupling between the surface modem and the downhole modem, and a surface data routing module that polls and trains the cable telemetry system. The methods also involve performing a pre-transmission poll of a rate requirement for the downhole toolstring and a telemetry type for the downhole modem, applying a training phase to establish a transmission link between the surface modem and the downhole modem, configuring data obtained by the downhole toolstring for an uplink via the transmission link, and transmitting the uplink via the transmission link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.