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Q Compensation Imaging

Data courtesy of PolarcusIn complex geologic regimes, the presence of absorptive mediums like gas field channels can often obscure the ability to accurately image deeper targets. Moving beyond its velocity modeling and depth imaging excellence, ION has developed new Q compensation versions of its tomography, depth migrations (Q PSDM), and full waveform inversion (FWI) algorithms to deliver deeper subsurface understanding in areas where spatially variant attenuation and phase distortion effects need to be overcome. ION's development of proprietary Q workflows leverages pre-stack data to better illuminate subsurface events ultimately leading to targeted improvements in imaging accuracy.

Benefits of ION’s Q Compensation Imaging Suite Include:

  • Ideal for targeted, isolated anomaly imaging
  • Better illumination of prospective areas, including shallow low amplitude scenarios that may cause shadow zones
  • Comprehensive library of Q Migrations (RTM, Kirchhoff, and Beam) to best fit geologic conditions and deliver high frequency, high-resolution images
  • Q Tomography counteracts sagging effects and delivers better delineation of layers
  • Reservoir characterization—attributes can be used as part of the inversion process
  • 4D ocean bottom applications

North Sea Q Compensation Imaging Data Example

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North Sea data example with standard acoustic Kirchhoff migration applied shows shallow and cumulative deeper reflection effects when Q related signal attenuation occurs. Visco-acoustic Kirchhoff migration applied shows how Q Migration can assist in target oriented imaging workflows to overcome spatial data variations in both phase and amplitude.

Data courtesy of Polarcus

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