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Delayed Time Full Wave Inversion (DTRWI)       ----- Patent Pending

  • Delayed time gather (DTCIG) in FWI process:

    • Is sensitive to velocity perturbation and easy to analyze the model quality

    • Measures velocity inaccuracy using only kinematic information

    • Can be complimentary to data domain QC for FWI when geology is complicated

  • DTFWI is an innovative and robust framework to invert complex velocity models using both diving wave and reflections, which

    • does not suffer from

      • cycle-skipping

      • amplitude discrepancies

      • sensitivity to source signature

      • dependence on low frequency

      • need for good initial model

    • provides a powerful volumetric QC

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