Dynamic Matching Full Waveform (DM FWI) Inversion produces high-resolution velocity models that incorporate the full seismic signal (diving waves and reflections) with a proven record with sparse OBN, shallow water OBN, streamer and land surveys.


Dynamic Matching FWI - TGS-1


TGS - Full Waveform Inversion - FWI - Seismic Data
TGS - Full Waveform Inversion - FWI - Sparse OBN Acquisition (2)
TGS - Full Waveform Inversion - FWI - Sparse OBN Acquisition
Caption 2
Caption 3

DM FWI with Sparse OBN Acquisition

DM FWI is a data-driven algorithm using a smooth initial model with little detail. Long offset diving waves and reflections contribute to estimating a high-resolution model from shallow to the base of salt and subsalt. The FWI image obtained from the final FWI model provides an uplift in illumination compared to conventional imaging. 

DM FWI for Shallow Water OBN Acquisition

Complex shallow overburden successfully modeled to a high resolution using long offset diving wave and reflection data. Injectites of variable velocity resolved to remove complexity and uncertainty from the underlying stratigraphy. 

DM FWI for NAZ Acquisition

DM FWI keys on reflection travel time differences to resolve low and high wavenumber details in the velocity model. A velocity slice shows lithology variations unseen with tomography updates in the initial model.

DM FWI for Land Acquisition

Our DM FWI velocity model building workflow for land data uses both optimal transform and dynamic matching for high-quality results in the presence of noisy seismic records.

TGS - Full Waveform Inversion - FWI - Land Acquisition-1
TGS - Full Waveform Inversion - FWI - Land Acquisition (2)-1