Methods for deblending of seismic shot gathers
US9602781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2012 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jun 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and methods to deblend seismic data from a plurality of sources and received by a plurality of sensors as shot gathers are disclosed. The deblending is performed by a Mutual Interdependence Analysis Method to separate contributions of different shots. Deblending is also performed by applying a measure of coherence in parallel data domains such as Common Shot Gather and Common Midpoint. Deblending is also achieved by using the hyperbolic nature of seismic data in the common midpoint domain. Deblended signals are estimated and are applied to create a seismic image. Also, Bergman iteration based migration is applied directly on the blended seismic shot gathers without first deblending as an alternative method. The methods are applied in seismic imaging for exploration of natural resources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.