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seismic | processing

This range of e-Learning modules provides an introduction to the science of seismic data processing. It deals with the processing of reflection seismic data from hydrocarbon exploration, which can be used for very shallow site investigations - such as placing oil rigs and engineering work - and for very deep penetrations into the earth to examine the limits of the earth's crust.

The course covers a wide range of topics, from the history of how oil was formed to Seismic Acquisition, Geometry and Processing Flows and was produced in partnership with Robertson Research.


atlas interactive

Targeted Participants

This range is aimed primarily at geology graduates embarking upon a career in the Oil and Gas Industry who wish to gain a clearer understanding of seismic processing and data acquisition techniques.

The range is an excellent learning tool for new starts, for those who wish to refresh their knowledge or simply for personnel who wish to understand more about seismic data processing.

Typical Duration

  • Each module is approximately 60 minutes

Features

  • Provides underpinning knowledge for competence
  • Independently verified by a leading Seismic / Geophysics consultancy
  • Can be tailored to suit an individual company's requirements
  • Continuous assessment throughout the course
  • Automatic remediation of incorrectly answered questions
  • Integrated trainee results management system
  • Modules can be purchased independently
  • High quality graphical and media techniques
  • Supplementary training manual available
  • Can be deployed by CD ROM, Corporate Intranet or Internet
  • SCORM™ Compliant

an integrated portfolio of 12 modules providing  technically compliant interactive learning

Range Content

Module 1 - In the Beginning

  • Introduction: Seismic Exploration
  • Introduction: Seismic Trace
  • Introduction: Field Record
  • Introduction: Recording a Seismic Trace
  • Introduction: Displaying a Seismic Trace
  • Geological Time Scale
  • Different Types of Rock
  • Rock Types: Igneous Rocks
  • Rock Types: Metamorphic Rocks
  • Rock Types: Sedimentary Rocks
  • Rock Types: Other Types of Sedimentary Rocks
  • Sedimentary Basins
  • Oil and Gas Formation
  • Oil and Gas Traps
  • Approximately Mathematical
  • Approximately Mathematical: Least Squares
  • Summary

Module 2 - Seismic Acquisition

  • Introduction
  • The Ideal Seismic Source
  • Onshore Seismic Sources
  • Other Land Sources
  • Recording the data - Onshore
  • Offshore Seismic Sources
  • Recording the Data - Offshore
  • Summary

Module 3 - Waves and Raypaths

  • Introduction
  • Waves
  • P and S Waves
  • Wavefronts
  • Ray Paths
  • More Ray Paths
  • Ghost Reflections
  • Multiple Reflections
  • Diffractions
  • Summary

Module 4 - Geometry

  • Introduction
  • Marine 2D Geometry
  • Multi-Fold Geometry
  • Calculating the Fold
  • Land Geometry
  • Elevation and Shot Depths
  • Field Statics
  • Crooked Lines
  • The Problems with 2D
  • 3D Geometry
  • 3D Geometry: Acquiring Marine Data
  • 3D Geometry: Problems of Data Volumes
  • 3D Binning
  • Summary

Module 5 - Recording the Data

  • Introduction
  • Number Systems
  • Binary Numbers
  • Binary Arithmetic
  • Digitisation
  • Aliasing
  • Multiplexed Data
  • Recording Filters
  • Tape Formats
  • Field Tape Formats: SEG-A
  • Field Tape Formats: SEG-B
  • Field Tape Formats: SEG-C
  • SEG-D: Layout
  • SEG-D: Multiplexed Data
  • SEG-D: Demultiplexed Data
  • SEG-Y
  • SEG-Y: Layout
  • Summary

Module 6 - Frequencies

  • Introduction
  • Complex Numbers
  • Single Frequency Waveform
  • Combining Different Frequencies
  • The Fourier Transform
  • The Forward Transform
  • The Inverse Transform
  • Example FFT's
  • Digital Filtering
  • Convolution
  • The Frequency Content of the Seismic Trace
  • Phase
  • Phase: Minimum Phase Wavelet
  • Summary

Module 7 - Processing Flows (1)

  • Introduction
  • A Typical Processing Flow
  • Transcription: Processing Sequence
  • Transcription: Interpreting Data
  • Vibroseis Data and Correlation
  • Autocorrelation
  • Autocorrelation of Vibroseis Sweep
  • Shot Summing
  • Shot Summing: Linear Processes and Processing Order
  • Initial Statics
  • Initial Statics: Processing Land Data
  • Initial Statics: Datums
  • Signature Deconvolution
  • Gain Recovery: Energy Loss
  • Gain Recovery: Gain Function
  • Trace Editing
  • Summary

Module 8 - Processing Flows (2)

  • Introduction
  • Resample
  • Spatial Resampling
  • Spatial Frequencies
  • Spatial Filtering
  • FK Filtering
  • Linear Tau-P Filtering
  • FX Deconvolution
  • Spatial Filtering Examples
  • Spatial Interpolation
  • Sorting & Gathering
  • Summary

Module 9 - Processing Flows (3)

  • Introduction
  • Dynamic Corrections
  • Dynamic Corrections: Magnitude
  • Dynamic Corrections: Velocity Function
  • NMO and Velocities
  • NMO and Velocities: NMO Stretch
  • Seismic Velocities
  • Picking Velocities
  • Velocity Problems
  • Velocity Problems: Super Gather
  • Velocity QC
  • Other Velocity Analysis and QC
  • DMO
  • Summary

Module 10 - Processing Flows (4)

  • Introduction
  • Multiples - Again!
  • Deconvolution
  • De-multiple
  • Residual Statics
  • Other Statics - Replacement Statics
  • Other Statics - Tidal Statics
  • Summary

Module 11 - Processing Flows (5)

  • Introduction
  • Trace Muting
  • Trace Muting: Mute-Scan
  • Trace Muting: Surgical Mute
  • CDP Stack
  • CDP Stack: Root-N Scaling
  • CDP Stack: Examples
  • Filtering
  • Equalisation & AGC
  • Migration
  • Other Post-Stack Processes / Display
  • What Happens Next?
  • What Happens Next? CAI
  • Summary

Module 12 - Advanced Processing

  • Introduction
  • Complex Trace Analysis: Hilbert Transform
  • Complex Trace Analysis: Parameters of Hilbert Transform
  • Complex Trace Analysis: Attributes of Seismic Data
  • Well Log Processing
  • Data Matching: Positioning of Data
  • Data Matching: Differences in Surveys
  • Data Matching: Merging Data
  • Zero Phasing: Ormsby Filter Live Example
  • Zero Phasing: Best Fit
  • Zero Phasing: Spatial Plots
  • Zero Phasing: Determining Filters
  • Zero Phasing: Limitations
  • Seismic Inversion
  • AVO
  • Scanning and Reprocessing
  • Scanning and Reprocessing: Reasons
  • Trials and Tribulations
  • Trials and Tribulations: Processes
  • Yesterday, Today and Tomorrow
  • Summary
atlas interactive

For a list of all the modules and their content, please see the download below.

Atlas Interactive - e-Learning for the Oil and Gas Industry | Offshore House, Claymore Drive, Aberdeen. AB23 8GD


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