Onshore Seismic Technologies
Taking a Fresh Look at Stale Areas
These days, most of what can be found onshore using conventional methods has already been discovered—or so the saying goes. In-Depth’s technology enables your company to explore more complicated geology inside “mature areas,” to uncover by-passed reservoirs, subtle untested fault blocks, stratigraphic traps, etc. We help you transform previously difficult mature areas into untapped profit. For example, for fault shadows, we would run K-Tomo and Dip-Boosting Gaussian Beam Offset Gathers; for near-surface velocity anomalies, and statics, we would run our FWI+; and for salt domes and subsalt analysis, we would use K-Tomo/RTM+ Common Offset Gathers or Surface Offset Gathers (SOGs).
We can handle complicated, rugose topography and full or multi-azimuth land data. Due to the superb efficiency designed into our proprietary software, we now offer high-end RTM+, Beam/Kirchhoff and Tomo/FWI solutions—at conventional processing prices.
In North America, we are often consulted to fix velocity issues which typically contaminate all spec or multi-client datasets. We start from the raw field tapes to run our TomoStatics solution and build a velocity model using our highly coupled K-Tomo/Gaussian Beam suite. We impose two kinds of constraints using interpretive masks and use the K-Tomo/FWI alternating workflow: one in data space and the other in model space. All picked faults and interfaces are honored, and the picks are densely sampled and non-hyperbolic. Well markers and gathers are used to estimate anisotropy. Final migration is typically high resolution TTI RTM+ with the wells tied.
In-Depth’s proprietary Fault-constrained K-Tomo, FWI+, Diffraction Imaging, and Dip-Boosting Gaussian Beam workflow have provided the powerful solutions in tackling pervasive fault-shadow problems. Due to the strong velocity variations across faults, conventional time (and even depth) processing may cause fake rollovers and/or fake sags. Using these conventional products for interpretation may cause drilling out of formation and leaving your company with a dry hole. Our velocity models rigorously honor the geology and produces crisp images for both large and small dipping events and faults.