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

Move the Slider Left or Right to see before and after

Got it
Set 2
Data after Deblending
Set 1
Data before Deblending


Difference Section [Before]-[After]

Difference Section [Before]-[After] Data from the West of Ireland

Example Set 2:

Atlantic Margins – Multidomain Coherency Filtering

Move the Slider Left or Right
to Visualize the Images

Got it
Shot gathers after
Shot Gathers After Deblending
Shot gathers
Shot Gathers: Input
shot gathers diff Shot Gathers Difference [Input]-[Deblended]

Upcoming Events