The Monodon Ultracube™ 3D Reprocessing consists of ~ 14,700 km2 3D and ~2,000 km 2D reprocessed data in the prospective Northern Carnarvon Basin of the North West Shelf, Western Australia.
The project incorporates a total of sixteen individual 3D surveys and three 2D surveys.
The study includes the reprocessing from field tapes using a state-of-the-art flow and cutting edge algorithms that include industry leading linear noise removal and regularisation.
The reprocessed data has been merged prior to anisotropic (TTI) pre-stack depth migration incorporating multi-iteration tomographic model building.
Access to such a large and comprehensive data set is typically very difficult and often not possible. Large-scale 3D surveys of this size are invaluable for geological interpretation and basin modelling applications.
The 3D contributing surveys to the fully merged dataset are Panaeus 1, Panaeus 2 South, Panaeus 2 North, Panaeus 99A, Panaeus 99B, Panaeus 99C, Panaeus 99 East, Panaeus 2000 West, Panaeus 2001 East, Wandoo, Stag, Cash, East Dampier, Demeter, Shelley OBC marine seismic surveys, located in the Carnarvon Basin, North West Shelf, Western Australia.
The datasets were processed from SEGD field tapes by DownUnder GeoSolutions in Perth.
For more information about the Monodon Ultracube™ 3D Reprocessing, please contact us directly.
Project parameters
| Project Size | ~17,100 sqkm |
|---|---|
| Processing Details | Zero Phase Designature Linear Noise Removal Shallow Water Multiple Prediction Demultiple Tau-P Deconvolution Match Surveys Regularisation Six rounds of tomographic velocity Model Building Anisotropic Pre-stack Kirchhoff Depth Migration Depth to Time Conversion Frequency Enhancement Residual Moveout correction Time Varying Filtering Residual Scaling |
| Key Processing Details | 3D Surface Related Multiple Attenuation (3D SRME) Shallow water multiple prediction (SWaMP) Five iterations of tomographic velocity updating of velocity model Anisotropic Kirchhoff pre-stack depth migration |
| Deliverables | Full Stack (8-35 degree) Near Stack (5-15 degree) Mid stack (15-25 degree) Far Stack (25-35 degree) Ultrafar Stack (35-45 degree) Migration Gathers Interval Velocities RMS Velocities Bin Centre UKOOA Data Processing Report |
Project partners
DownUnder GeoSolutions
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