Processing seismic data
US7328109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2006 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Mar 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/3248
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of processing seismic data comprises transforming seismic data which contain coherent noise to a domain in which at least some of the coherent noise is transformed to incoherent noise. The seismic data are then filtered in the new domain, to remove or attenuate the incoherent noise. If desired, the filtered data may subsequently be transformed back to the domain in which the data were acquired. The filtering process may be carried out using a multichannel interference canceller. A seismic data trace to be filtered is input to the principal channel of the interference canceller, and one or more other seismic data traces are input to the interference canceller as reference traces. Use of seismic data traces as the reference trace(s) avoids the need to determine a noise reference trace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.