Geophysics for Geologists and Petroleum Engineers
Training Course

3 Days

$2195 CAD

Upcoming Sessions
Calgary, Alberta

Tuesday, October 15, 2024
8:30 AM - 4:30 PM
Wednesday, October 16, 2024
8:30 AM - 4:30 PM
Thursday, October 17, 2024
8:30 AM - 4:30 PM
Register before September 24th and receive $100 off! Use the promo code EarlyBird.

Course Description
In modern exploration for oil and gas, geophysics is a key to success, particularly in offshore and frontier areas. Contemporary geophysics (seismic) provides the necessary technology to remote-sense the target to reduce the exploration drilling risk. Seismic also plays a significant role in reservoir characterization and development.

Geologists and Engineers have learned to visualize and quantify rock properties from their physical properties graphically represented in well logs. The challenge is to become equally comfortable with seismic data. The seismic trace can be considered as an additional log which, on the one hand comes by the thousand, yet on the other, does not have the resolving power of the sonic or density log.

This three-day course presents the basic geophysical principles in a non-mathematical yet practical, tutorial fashion with numerous exercises. The course will cover data acquisition, processing and interpretation.

Who Should Attend
Petroleum Geologists, Engineers and Junior Geophysicists of any length of experience will find this course of significant benefit in understanding seismic fundamentals and will learn the advantages of seismic data in exploration and reservoir characterization.

Day One
  • Themes: Summary of the key topics
  • Closed Loop: where seismic fits in the exploration process
  • Leonardo Da Vinci’s Contribution: optics and acoustics
  • Reflection Coefficient: R = (D2V2 – D1V1)/ (D2V2 + D1V1) at a geological boundary
  • Polarity convention of well logs and seismic data
  • Anatomy of a Seismic Section Display (S/N, resolution, scales)
  • In and out of the plane: 2D and 3D
  • Waves and Earthquakes P- and S-waves : Poisson’s Ratio
  • Major Signal Attributes: Amplitude, Frequency, Phase
  • Windows Media Player: time and frequency analysis of Mozart & Rock’n Roll
  • Convolution: making simple seismic traces by hand from simple well logs
  • Gold Creek gas field seismic model
  • Seismic and the Sonic Log; the mathematical relationship
  • Structural Modeling: Step and V-shaped models; effect of dip and velocity; pull-up & migration
  • Seismic Interpretation 101: Hibernia, Jumping Pound. Fairview. Real data example exercises
  • Drilling Game.

Day Two
  • GeoSyn Synthetic Seismogram software demo
  • Stratigraphic Modeling: Synthetic Seismogram
  • Choice of wavelet (Ricker, Ormsby), polarity, stretch (Q), calibration
  • Resolution: Definition of Tuning, detection, amplitude mapping
  • Z = V/2.8f
  • The Landman Story of Resolution
  • Drilling Game:
  • Acquisition: early history, channels, fold, signal, noise, geophones, dynamite, vibroseis, marine
  • Borehole Geophysics: checkshot, VSP, Tomography, Microseismic
  • 3D Seismic; definition, benefit, pitfalls, 4D, 5D
  • Seismic Data Processing: Menu, key steps, Deconvolution, Statics, stacking, pre-stack and post-stack migration
  • Rubik Cube: A perfect analog for 3D seismic.
  • Workshop Exercises

Day Three
  • Seismic Interpretation: Basic fundamentals, non uniqueness, learn by experience
  • Key topics: structural examples, channels, reefs, exercises
  • Seismic Signal Amplitude: “bright Spots” and “DHI’s), history, examples
  • Factors affecting amplitude
  • Seismic Inversion: theory and examples
  • The pre- and post- stack domains
  • Amplitude versus Offset (AVO); basic theory and history
  • Classical Equations: Knott Zoeppritz and the Dipole Sonic Log
  • Rock Properties and Poisson’s Ratio: Petrophysics
  • Otto Koefoed and the origins of AVO
  • The offset synthetic seismogram
  • The Shuey Approximation to simple AVO modeling
  • AVO in sandstones: signatures and examples
  • AVO in carbonates: signatures and examples
  • AVO Inversion and Cross-Plotting
  • Solution to Drilling Game
  • Seismic Attributes: Definition and partial listing
  • Historical evolution of the focus on attributes
  • The Hilbert Transform and Instantaneous amplitude, frequency and phase
  • Curvature, coherency and spectral decomposition
  • Seismic Frontiers: Current R & D; Oil Sands
  • Workshop Exercises

Dr. A. Easton Wren, Ph.D
Dr. Easton Wren received a B.Sc.(Hons) in Geology and a Ph.D. in Geophysics from the University of Glasgow in Scotland. Dr. Wren has lived and worked in 23 countries, and his professional experience includes positions with Ray Geophysical Company in Libya, the United Nations in Uganda, Amoco Canada and PanCanadian Petroleum in Calgary. He founded Petrel Consultants, has been an Independent Consultant and is currently on the board of International SoftRock Oil, a Calgary company with assets in Cameroon and Arizona.

Easton has been a Visiting Professor at the Universities of Calgary and Kansas and is currently a Session Professor at Mount Royal University. He has presented technical and non-technical industry courses in numerous countries around the world, including the Americas, Europe, Africa, the Middle East, S.E Asia and Australasia.

He was President of the Canadian Society of Exploration Geophysicists and received Honorary Membership. He is the author of several technical published papers and is a past editor of the Journal of the C.S.E.G.

In 1987 he was the Distinguished Lecturer for the American Association of Petroleum Geologists (AAPG) and is an active member of S.E.G. and C.S.E.G. He has been involved in the movie and television industries and was the producer and host of CFAC-TV Calgary's "Science Spectrum" documentary programme.
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