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GeoDepth 3D - Depth Velocity Model Building and Depth Imaging


This training course is designed to introduce new and existing users to the working environment and applications in GeoDepth. The course guides the student through Paradigm’s recommended basic time to depth velocity analysis workflows using GeoDepth and time to depth migrations.

This training manual covers basic workflows in GeoDepth 3D and offers students two alternatives for building the initial model, a structure independent (grid based) and a layer based model building workflow. Example workflows are provided.

The training manual offers a detailed step-by-step description of each workflow, including operational information about each application, as well as theoretical considerations and practical hints regarding each step. The training manual maintains a realistic production-oriented approach, and emphasizes correct practices (e.g. correct setup, QC of results after each stage, etc.).

3, 4 or 5 days, depending on the topics covered.

Some familiarity with Paradigm products

Who Should Attend:
New GeoDepth users, Geophysicists


  • Introduction, Setup, Data Loading and QC
    • Launching Paradigm
    • Session Manager Overview
    • 3D Survey Setup and QC, Seismic and Velocity Data Loading
    • Seismic Data QC
    • Interpretation Data Loading and QC
    • QC and Preparation of Velocity Data
  • Initial Velocity Model Building and Prestack Depth Migration
    • Initial Depth Interval Velocity Volume Creation with Constrained Velocity Inversion 
    • Target Line 3D Kirchhoff Prestack Depth Migration
  • Updating the Velocity Model with 3D Grid Tomography
    • Depth Interpretation
    • Structural Attribute Volume Creation
    • Pencil Creation
    • Interactive Ray Tracing and RMO Autopicking
    • 3D Grid Tomography
  •  Horizon Based Velocity Modeling and Tomography 
    • Prepare for Horizon Based Velocity Model Building
    • Horizon Based Depth Interval Velocity Model Creation
    • Target Line 3D Kirchhoff Prestack Depth Migration
    • Generate Structural Information for Tomography
    • Interactive Ray Tracing and RMO Autopicking
    • 3D Structural Model Based Tomography
  • Final Depth Migration and Other Workflows
    • Final Depth Migration Considerations
    • Example Workflows
    • Using FastVel and CVI for Velocity Model Updating
    • Working with Anisotropy

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