The authors hereby propose diffraction imaging as a tool to de-risk small-scale features, as those related to a fractured carbonate reservoir. Diffraction imaging has indeed increasingly generated interest as a method for the detection and delineation of small-scale (less than the wave length) subsurface elements such as faults, pinchouts, karsts, fracture corridors, injectites, etc. These elements cause sharp changes/contrasts in the subsurface physical properties and geometry, and they are generic sources that scattered/diffracted seismic energy ( ). The diffracted energy carries however much lower intensity than the reflected one and this fact hinders the confident identification and delineation of the small-scale objects with standard methodologies. Therefore, the main aspect in diffraction imaging is the accurate separation of the diffracted and reflected components of the total wave field. Such separation can be performed efficiently in the structural dip-angle domain ( ). In this study we present examples of diffraction imaging and interpretation for carbonate reservoirs. The results achieved show the high resolution and reliability of the proposed methodology.


Article metrics loading...

Loading full text...

Full text loading...


  1. Landa, E.
    [2012] Seismic diffraction: where’s the value?SEG 2012 Expanded Abstracts.
    [Google Scholar]
  2. Landa, E. et al.
    [2008] Separation, imaging, and velocity analysis of seismic diffractions using migrated dip-angle gathers. SEG Expanded Abstracts, 27, 2176.
    [Google Scholar]
  3. Koren, Z. and Ravve, I.
    [2011] Full-azimuth subsurface angle domain wavefield decomposition and imaging Part I: directional and reflection image gathers. Geophysics, vol 76, no.1, S1–S13.
    [Google Scholar]
  4. Reshef, M., and Landa, E.
    [2009] Poststack velocity analysis in the dip-angle domain using diffractions. Geophysical Prospecting, 57, 811–821.
    [Google Scholar]
  5. Koltanovsky, L. et al.
    [2017] Enhancing confidence in fracture prediction through advanced seismic data processing and analysis techniques. First Break, 35, 49–53.
    [Google Scholar]
  6. SmirnovK. et al.
    [2018] Increasing confidence in reef interpretation using dip angle gathers analysis. First Break, 36, 37–42.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error