Device and method for deghosting variable depth streamer data including particle motion data
US9442208B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2013 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Sep 13, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Computing device, computer instructions and method for de-ghosting seismic data related to a subsurface. The method may include receiving input seismic data recorded by seismic receivers that located at different depths (zr), generating migration data (du) and mirror migration data (dd) from the input seismic data, deriving a ghost free model (m) based on simultaneously using the migration data (du) and mirror migration data (dd), generating primary (p) and ghost (g) datasets based on the ghost free model (m), simultaneously adaptively subtracting the primary (p) and ghost (g) datasets from the migration data (du) to provide adapted primary (p′1 and p′2) and adapted residual (r′1 and r′2) datasets, and generating a final image (f) of the subsurface based on the adapted primary (p′1 and p′2) and the adapted residual (r′1 and r′2) datasets. In certain embodiments, the input seismic data d includes both hydrophone data and particle motion data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.