Marine vibrator directive source survey
US11774618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Mar 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/127
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Marine seismic surveys, including ocean bottom surveys, utilizing marine vibrator arrays that are capable of being driven in anti-phase to produce a directional source gradient. Marine seismic surveys may include activating the vibrator array to emit a plurality of radiation patterns with at least a first radiation pattern that has a first notch at a take-off angle that is not dose to vertical. Some marine seismic surveys included emitting directive wavefields from two or more simultaneous seismic source arrays, where the two or more seismic source arrays have a phase that changes from shot-to-shot to allow simultaneous source separation of the directive wavefields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.