2D Multi-line Grid-based Tomography

Enhanced usability, productivity and quality in 2D velocity model building workflows.

2D prestack and autopicked moveouts displayed in 3D space
The vast majority of available seismic data in many regions around the world is still 2D, and 2D data represents approximately 25% of new seismic acquisitions. 2D projects can contain up to hundreds of lines, requiring significant investment in human resources and data management.  As 2D lines can be very long, cluster-based computing is often required. 

Paradigm® GeoDepth® now provides an efficient solution to these challenges, through support for a full multi-2D line workflow for 2D grid tomography.   Multi-line 2D tomography uses a similar workflow, user interface, and parameters to those used in 3D grid tomography.

An advanced multi-line capability enables work on a large number of lines (from a few dozen up to several hundred) with minimal user intervention. The solution  supports both single 2D lines, and work in batch mode. Individual jobs are distributed over the cluster.
“We’ve been testing the new high-productivity, GeoDepth 2D grid tomography, multi-line workflow introduced in Paradigm 17.  This has been a result of a collaborative effort between Spectrum and Paradigm geoscientists and developers, and is a great example of Paradigm’s attention to customer needs.  We can already see a significant reduction in project cycle time and better end results.”
Mike Ball, EVP Seismic Imaging and Data Management at Spectrum


  • Visualize 2D prestack data in a 3D environment, with autopicked moveouts
  • Algorithm compatibility between 2D and 3D solutions
  • Control of parameterization and efficient QC options
  • Full support for anisotropic models
  • Modern GUI similar to Paradigm 3D tomography
  • Process, visualize and interpret 2D data in a 3D environment
  • Envision geology in 3D
  • Automatic horizon picking for auto-picker seed points, based on dip and continuity
  • Operate multi-lines simultaneously
  • Efficient job parameterization and script generation
  • Efficient job parallelization, monitoring and logging


  • Improved productivity through support for multi 2D-line batch operations on clusters
  • Algorithm compatibility ensures consistency between 2D and 3D results
  • Predictable outcomes:  Full user control over parametrization and QC, no longer “black box”
  • ​Easier to learn