Utah Tomography and Modeling/Migration Development Project





1998 Midyear Report

J. Chen, J. Hu, G. Schuster,
D. Sheley, H. Sun, Y. Wang and H. Zhang

October 30, 1998

 

• Contents
  • Preface
• Migration Methods
  • Correction of Cable Feathering and Velocity Errors by Migration Deconvolution
    
    • ABSTRACT
    • INTRODUCTION
    • NUMERICAL EXPERIMENTS
      • Velocity Tolerance
      • Elevation Variation Tolerance
      • Geometry Variation for 2D Prestack Data Set
      • 3D migration model A: Poststack Migration
      • 3D Migration Model B: Prestack Migration
    • CONCLUSIONS
    • REFERENCES
  • Wavepath Migration
    
    • ABSTRACT
    • INTRODUCTION
    • STATIONARY PHASE GREENS FUNCTION FOR ZERO-OFFSET MIGRATION
      • Case of a Reflector in a Homogeneous Medium
      • Reflection Tomography without Interface Parameterization
    • NUMERICAL RESULTS
      • 2-D Multi-layer Model
      • 3-D Point Scatterer Model
    • SUMMARY
    • REFERENCES
  • Migration of Transmitted PS Arrivals from Ore Bodies and Salt Flanks: A Progress Report
    
    • ABSTRACT
    • INTRODUCTION
    • THEORY OF PS MIGRATION
    • NUMERICAL RESULTS
      • MATLAB MIGRATION OF A SYNTHETIC CROSSWELL SEISMOGRAM
      • KIDD CROSSWELL DATA
      • SYNTHETIC ORE AND SALT BODY MODELS
      • Simplistic Ore Body Model
      • Salt Model with Homogeneous Background
      • Salt Model with Layered Background
    • SUMMARY AND WHAT'S NEXT
    • ACKNOWLEDGEMENTS
• Velocity Methods
  • Automatic Picking of Residual Moveouts in Common Image Gathers
    
    • ABSTRACT
    • INTRODUCTION
    • RESIDUAL MOVEOUT IN THE COMMON IMAGE GATHERS
    • MEDIAN FILTERING
    • FIELD DATA EXAMPLE
    • DISCUSSION AND CONCLUSION
    • ACKNOWLEDGEMENTS
    • REFERENCES
  • Processing the Noranda Kidd Creek Crosswell Data
    
    • ABSTRACT
    • INTRODUCTION
    • METHODOLOGY
    • DISCUSSION OF RESULTS
    • CONCLUSIONS
• Multiple Elimination
  • Extending the LSM Multiple Separation Method to Inhomogeneous Velocity Models
    
    • ABSTRACT
    • METHODOLOGY
    • UNOCAL FIELD DATA SET
    • DISCUSSION
      • Instability
      • 3-D and Interpolation Issues
    • ACKNOWLEDGEMENT
    • REFERENCE
• Traveltime Computation Methods
  • 3D Traveltime Calculation for Anisotropic Media
    
    • ABSTRACT
    • INTRODUCTION
    • WAVE EQUATION TRAVELTIME SOLVERS
      • Acoustic VTI Wave Equation Traveltime Solver
      • General VTI Wave Equation Traveltime Solver
    • FD EIKONAL EQUATION TRAVELTIME SOLVER
      • Solving the Eikonal Equation for General Anisotropic Media
      • Expanding Wavefront (EW) Method
      • Fast Matching (FM) Method
      • Tests on EW and FM Methods
      • Hamilton-Jacobi Solver
    • DISCUSSION AND FUTURE WORK
    • ACKNOWLEDGEMENT
    • REFERENCE
• Software Development
  • GUI Component For SU Packages
    
    • ABSTRACT
    • INTRODUCTION
    • V'S FEATURES
    • WHAT HAS BEEN ACHIEVED
    • WHAT'S NEXT
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