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Seismic Reflection

Estimated Time to Complete:

5 hours 24 minutes

(average of 81 minutes per Subtopic)

Explains seismic reflection theory and how it is useful for understanding seismic events. Presents the different types of multiples in seismic records, describes how they are formed, how they can interfere with primary reflectors, and explains what processes eliminate them. Identifies specific depositional environments and correlates these to seismic reflection complexes. Relates geologic stratigraphy to seismic data reflection responses. Describes basic refraction theory and key concepts, such as the critical angle, low speed layers, hidden layers and dipping layers. Distinguishes the best uses for mode conversion methods and why the concept of Amplitude Versus Offset (AVO) is important.

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Total Number of Subtopics: 4
  • expand/collapse Reflection Theory
    • Basic Reflection Concepts
    • Reflection at Normal Incidence
    • Transmission at Normal Incidence
    • Convolution and Superposition Models
    • The Fresnel Zone
  • expand/collapse Diffuse Reflections and Multiples
    • Introduction to Diffuse Reflections
    • Buried Focus Effect
    • Transmission Decay and Reflection
    • Introduction to Multiples
    • Types of Multiples
  • expand/collapse Reflection and Geologic Interfaces
    • Geological Interface Overview
    • The Tuning Effect
    • Non-Depositional Reflectors
    • Depositional Reflectors
  • expand/collapse Refraction Theory & Non-Normal Incidence
    • The Basic Theory of Seismic Refraction
    • Refraction Interpretation Methods
    • Non-Normal Incidence
    • Mode Conversion
    • Practical Uses for Mode Conversion
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