Downhole seismic sensing synchronization systems and methods
US10935682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Sep 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A seismic system that includes a seismic source configured to generate a first seismic signal and a second seismic signal in a formation adjacent the seismic source. A first downhole sensing device disposed in a first borehole configured to detect the first seismic signal and the second seismic signal in the formation; and a first surface acquisition system is in communication with the first downhole sensing device. The first surface acquisition system is configured to: determine a first reference transit time based at least in part on detection of the first seismic signal by the first downhole sensing device; a first subsequent transit time based at least in part on detection of the second seismic signal by the first downhole sensing device; andwhether a synchronization variation is expected to be present based at least in part on the first reference transit time and the first subsequent transit time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.