DUG has published the latest images from its revolutionary new multi-parameter FWI imaging technology and released them worldwide this month via industry publications—First Break, The Leading Edge, GeoExpro and Oil Review Middle East.
The company’s 12-page showcase of its breakthrough processing and imaging technology, which completely replaces traditional workflows used by the industry for decades, presents results from every corner of the globe. The jaw-dropping examples, with both modern and legacy datasets, cover an array of geological settings which include subsalt, onshore and shallow water.
DUG MP-FWI Imaging is an innovative implementation of full waveform inversion (FWI) that delivers simultaneous model-building and full-wavefield, least-squares, depth imaging without the need for a conventional processing workflow. Results are not just available much faster, but the novel approach delivers unsurpassed imaging directly from field data.
The traditional seismic processing and imaging workflow involves the testing and application of dozens of processing steps such as deghosting, designature, demultiple and regularisation, which are all designed to overcome the restrictions of conventional imaging algorithms. These workflows can be complex, subjective, and very time-consuming due to their serial nature and they often rely on many assumptions and simplifications which require further steps to resolve.
All of these issues can impact the output data quality. The resulting, primary-only data then undergoes a similarly complex model-building workflow to derive an estimate of the subsurface velocity. This treatment of seismic data means that projects can take many months or even years to complete.
DUG MP-FWI Imaging is a new and unique approach to seismic processing and imaging which turns this traditional paradigm on its head. It is now possible to determine a wide range of Earth parameters including attenuation, anisotropic velocity and true-amplitude three-component reflectivity using multi-parameter FWI.
DUG MP-FWI Imaging simultaneously solves the challenges of a complex pre-processing and imaging workflow, while removing assumptions. Least-squares imaging of the full wavefield deliver superior focussing, superior illumination, superior vertical and horizontal resolution and true amplitudes. Data courtesy of Shell
The more complete physics of DUG MP-FWI Imaging naturally allows parts of the data traditionally considered as noise, and therefore attenuated during pre-processing, to be retained and treated as valuable signal. Using primary reflections, as well as all forms of multiples and ghosts, guarantees significantly better subsurface sampling, which in turn provides much-improved illumination and resolution over conventional, primary-only imaging.
DUG’s approach provides true-amplitude reflectivity images that can be used for both structural and quantitative interpretation including pre-stack outputs for AVA and elastic rock property analysis. When using the full wavefield for simultaneous velocity model building and true-amplitude imaging a multi-parameter inversion is a necessity. A single-parameter FWI cannot separate velocity and reflectivity with validity.
DUG MP-FWI Imaging uses superior physics to get the most out of the recorded data, delivering unsurpassed imaging with rapid turnaround. It is a complete replacement for the traditional processing and imaging workflow.
See the results with your own eyes by checking out DUG’s brochure. Don’t have a subscription to the magazines distributing it? We have you covered. Download your own copy here:
Welcome to the future of seismic processing and imaging.
