Synchronization of distributed measurements in a borehole
US9007231B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2013 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Jul 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method to synchronize distributed measurements in a borehole are described. The system includes a plurality of wired segments coupled together by couplers and a plurality of nodes configured to measure, process, or relay information obtained in the borehole to a surface processing system, each of the plurality of nodes comprising a local clock and being disposed at one of the couplers or between couplers. The system also includes a surface processing system coupled to a master clock and configured to determine a time offset between the master clock and the local clock of an nth node among the plurality of nodes based on a downhole generated synchronization signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.