When it comes to processing and imaging land seismic data, DUG Elastic MP-FWI Imaging produces far superior results!
Land seismic data, such as the example above, can often exhibit strong elastic effects that violate the assumptions of acoustic imaging. This desert setting has geological complexity both in the near-surface and at the target depth, including high-impedance carbonates. Conventional pre-processing workflows are non-trivial, especially on land data, where stages such as demultiple often require complex modelling and adaptive subtraction workflows.
The traditional processing workflow involves the testing and application of dozens of steps such as deghosting, designature, demultiple and regularisation, which are all designed to overcome the limitations of conventional imaging. These workflows are complex, subjective, and very time-consuming due to their serial nature and they rely on many assumptions and simplifications. All of these issues 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, which is used for depth imaging. Post-migration processing is performed before the pre-stack reflectivity undergoes another workflow to derive rock properties that feed into quantitative interpretation, also relying on simplifications of the actual physics. As a result of these workflows, projects can take many months to years to complete.
Significantly better illumination and event continuity is obvious when comparing the sections in the figure, thanks to DUG Elastic MP-FWI Imaging of the full wavefield — that includes interbed multiples. Incredible near-surface detail has been resolved, as can be seen on the shallow depth-slices to the right. Subtle structural and stratigraphic features that were simply not imaged with a conventional processing and imaging workflow have now been resolved.
A complete replacement for traditional processing and imaging workflows is no longer a stretch of the imagination. Visit dug.com to see more outstanding DUG Elastic MP-FWI Imaging results.
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DUG Elastic MP-FWI Imaging leaps entire workflows in a single bound, delivering unsurpassed imaging and high-resolution rock properties from field-data input. Superior outputs, in a flash!
Talk to us today. Contact info@dug.com
