Discipline Geophysics
LevelFoundation
Duration4 Days
Delivery Mechanism Classroom
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Course Progression Map - Marine Seismic Processing

Course Progression Map - Land Seismic Processing

Introduction to Geophysics: Acquisition, Processing and Interpretation

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The overall objective of the course is to introduce E&P professionals to the key concepts and principles that form the basis for value added geophysical applications in exploration, field appraisal, and reservoir management.  Learning objectives are at basic awareness to knowledge levels.  Emphasis is on practical understanding of seismic acquisition, processing, imaging, interpretation and prediction of geological and petrophysical properties from seismic.  Data examples, videos, exercises, and workshops are used to illustrate key concepts.  Practical issues, and pitfalls as they affect the application of geophysical data and information in E&P workflows are discussed.  The practical aspects of seismic interpretation are covered with examples that involve seismic structural mapping, stratigraphic analysis, and amplitude/attribute methods.

This course is also available in a 5-day version using challenges from the OilSim Simulator

  • Agenda
  • Topics
  • Audience
  • Prerequisites
  • Agenda

    Day 1

    Introduction

    • Role of Geophysics in the E&P business
    • What do we get from Geophysical Data?
    • Overview of Geophysical techniques 
    • The business of Geophysics -  Industry and competitive landscape
    • Seismic Markets – Equipment, Acquisition, Multiclient
    • Geophysics in Schlumberger

    Non-Seismic Methods

    • Gravity and Aero-Gravity
    • Magnetic and Aeromagnetic
    • Electromagnetic – Controlled Source and Magneto-telluric
    • Use and application of non-seismic technologies
    • Data examples

    Seismic Principles

    • The seismic experiment
    • Reflection and refraction
    • The seismic wavelet
    • P and S waves – Snell’s Law
    • Resolution
    • Multifold acquisition
    • Seismic velocities

    Day 2

    Marine Seismic Acquisition

    • Hyperbolic move-out
    • Marine sources – airguns. Bubble effect
    • Simultaneous sources
    • Seismic recording systems
    • Hydrophones and streamers
    • Streamer steering
    • Single sensor and time lapse
    • Seismic acquisition parameters and QC

    Advanced Marine Acquisition Techniques (OPTIONAL)

    • Use of multiple sources and receivers
    • Wide-azimuth
    • Full azimuth Coil acquisition
    • Broadband
    • Ghost attenuation
    • Over-under shooting

    Land Seismic Acquisition

    • Impact of near surface on data quality
    • Land seismic sources - dynamite and Vibroseis
    • Simultaneous sources
    • Acquisition design
    • Geophones and arrays
    • Land seismic operations
    • Land seismic acquisition QC

    Day 3

    Seismic Data Processing  - Data Conditioning

    • Near surface corrections - statics
    • Noise attenuation
    • Multiple attenuation
    • Wavelet shaping and deconvolution
    • NMO Correction
    • Velocities and velocity analysis 

    Seismic Data Imaging

    • Migration – types and application
    • Time and Depth Imaging
    • Velocity Modeling
    • Seismic Illumination

    Day 4

    Borehole Seismic Acquisition and Processing

    • Borehole geophysical principles
    • Field technology – Acquisition Methods
    • Check shots and VSPs
    • Seismic while Drilling
    • Cross well seismic
    • Passive seismic 

    Seismic Data Interpretation

    • Trap definition
    • Collaborative Interpretation – Seismic to Simulation
    • Synthetic seismograms
    • Structural mapping and contouring
    • Seismic and Sequence Stratigraphy
    • Amplitudes and DHI
    • Attributes, AVO & Inversion
    • Summary – What concerns us about seismic data

    A History of Innovation 

    • Evolution of the Seismic Business
    • Seismic Service Companies – Seismos to WesternGeco
  • Topics

    Seismic Principles

    Non-Seismic Methods

    Marine Seismic Acquisition

    Land Seismic Acquisition

    Seismic Data Processing

    Seismic Data Imaging

    Borehole Seismic Acquisition and Processing

    Seismic Data Interpretation

  • Audience

    Entry level geoscientists, geologists, engineers and other E&P staff (non-technical) who need an overview of seismic/ geophysics techniques and applications

  • Prerequisites

    Basic Knowledge of Subsurface Geology

  • Prerequisites

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