DW Tomo3D
3D Refraction Tomography
Derive three-dimensional subsurface velocity structures with efficient first-break picking and fast 3D shortest path ray tracing
Data input
- Import all records of a survey area at one time
- Efficiently assign 3D geometry with layout chart
- Support downhole receivers and sources
- Optionally load first-break picks together with seismic data for reprocessing
- Support third-party picks formats
Data processing
- AGC, trace balance, and frequency filtering
- Reverse polarity of selected traces
- Undo or redo multiple steps in data processing
First-break picking
- Manually pick first breaks with a trace magnifier
- Automatically pick first breaks guided by picks on common offset gathers
Tomography
- Initial model building based on the travel time versus offset plot
- 3D ray tracing with fast shortest path algorithm
- 3D regularized tomographic inversion with multiple constraints
- Simultaneously update the picked and calculated first arrivals on seismic traces
- Interactively pause and resume or stop the tomography procedure
- Review results of each iteration with fitting error analysis
Plotting
- Display 3D velocity volume with multiple vertical and horizontal slices
- Interactively sweep velocity volume
- Interactively rotate, pan, and zoom 3D view
- Trim velocity volume based on ray paths
- Plot ground surface
See other Refraction products:
