Application and Interpretation of Converted Waves

by Robert R. Stewart and James E. Gaiser

Duration: Two days

Intended Audience: Intermediate levels

Prerequisites (Knowledge/Experience/Education Required): The course is recommended for geophysicists with an undergraduate background who are involved with seismic acquisition, processing or interpretation.

Summary:
This course provides a thorough overview of the methods of multi-component (3-C and 4-C) seismic exploration from basic petrophysical analysis and survey design through 3-D converted-wave migration. Numerous examples and case histories show the design, application, and use of multi-component surveys. Both 2-D and 3-D surveys and analysis will be discussed. Marine surveys (up to 4C-4D measurements) and analysis are highlighted. Supporting measurements as dipole sonic logs and 3-C VSP are also included. Field case interpretation exercises reinforce concepts introduced by the instructors.

Topics discussed in this course include:

  • Rock properties, logs, synthetic seismograms, VSP
    P and S velocity and density
    Acoustic and dipole sonic logs
    PP and PS AVO synthetics
    3-C VSP surveys and analysis
     
  • Multi-component acquisition
    Sources, receivers
    Survey design, recording systems, logistics, costs
     
  • PS and SS processing
    Statics, velocity analysis, DMO
    Stacking, migration, inversion
    Anisotropy considerations
     
  • P- and S-wave interpretation
    Section correlation, synthetics, VSP support
    Field data exercises including: channel sand delineation, dolomite/anhydrite changes, 4C marine cases, conglomerate reservoir identification

Instructor Biographies:
Robert R. Stewart

James E. Gaiser