Deblending
There are two main ways to approach the separation of simultaneous source data
Acquisition with blended sources is a way to efficiently acquire high-density seismic data
The overlapping sources must be separated (deblended) before the data can be processed further. TGS has a range of deblending algorithms well suited to different types of acquisition, such as marine streamer and ocean bottom node data, as well as different geological settings:
- Multidomain Coherency Filtering (MCF) uses the unique High-Resolution Moveout Transform (HMT) to separate continuously recorded overlapping shots records.
- Enhanced Adaptive Subtraction (EAS) performs
source separation using state of the art denoise and adaptive subtraction techniques. - Pure and hybrid Inversion based deblending schemes in the sparse Tau-P and 3D FK domains efficiently separate any number of overlapping sources.
Example Set 1:
Atlantic Margins - Multidomain Coherency Filtering
Difference Section [Before]-[After]
![Difference Section [Before]-[After]](https://www.tgs.com/hs-fs/hubfs/Data%20before%20and%20after%20difference.jpg?width=940&height=322&name=Data%20before%20and%20after%20difference.jpg)
Example Set 2:
Atlantic Margins – Multidomain Coherency Filtering
![shot gathers diff](https://www.tgs.com/hs-fs/hubfs/shot%20gathers%20diff.png?width=736&height=387&name=shot%20gathers%20diff.png)
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