Diffraction

{
  "id": "MLC-T-OAG-001078",
  "term": "Diffraction",
  "field": "Oil and gas",
  "definition": "The phenomenon where waves bend, spread out, and interfere as they pass around an obstacle or through an aperture. In seismic exploration, diffractions are generated from small-scale subsurface features such as faults, unconformity edges, pinch-outs, or isolated objects with dimensions smaller than a seismic wavelength. These events appear as hyperbolic curves on a seismic section before migration, and their energy is focused back to the originating point during processing.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/diffraction/"
}