Seismic interpretation plays a critical role in the oil and gas industry, enabling professionals to visualize and understand subsurface geological formations. OpendTect is a leading open-source software that provides geoscientists with the tools needed for advanced seismic analysis. This course is tailored to equip participants with the knowledge and skills to effectively utilize OpendTect for seismic interpretation, helping to drive accurate decision-making and reduce exploration risks.

This course will be delivered through a combination of interactive lectures, hands-on exercises, and real-world case studies. Participants will have the opportunity to work directly with OpendTect software in a practical learning environment, ensuring that they gain the skills needed for immediate application in their professional roles. The training will be guided by industry experts with extensive experience in seismic interpretation.

Day 1

1.      Introduction

2.      History of seismic studies

3.      The seismic method

     3.1   Rock properties

     3.2   Wave propagation, reflection, and refraction of seismic waves, reflectivity, impedance

     3.3   Data acquisition – Land and Marine

4.      Other geophysical methods

4.1   Gravimetry

4.2   Magnetics

4.3   Electro magnetics

5.      Seismic data processing overview

5.1   Conventional pre-stack processing and CMP gathers

5.2   Post-stack processing

5.3   Seismic migration, velocity models. 

6.      Calibration methods (well-tie)

6.1   Velocity surveys

6.2   Sonic logs

6.3   Synthetic seismograms

6.4   Vertical Seismic Profiles

Day 2

     1.      2D and 3D Seismic Data

    1.1 Parameters, visualization, polarity

    1.2 Seismic Data Libraries, public, private and licenses

    1.3 Software

     2.      2D and 3D interpretation techniques

    2.1 hard and soft events

    2.2 Vertical exaggeration

    2.3 Horizontal and Vertical slicing in 3D data

    2.4 Seismic horizons – stratal interface, fluid contacts and non-geological horizons

    3.       Quantitative interpretation geophysics

    3.1 Acoustic impedance and inversion

    3.2 AVO and pseudo-gradient

    3.3 RMS amplitude

    3.4 Spectral decomposition

    3.5 Other methods

Day 3

    1.      Fault interpretation

   1.1 Introduction to fault interpretation

    2.     Structural styles

   2.1 Rift basins

   2.2 Compressional domains

   2.3 Salt tectonics

   2.4 Strike-slip faults

    3.     Mapping faults in 2D data

  3.1 Faults in each seismic line

  3.2 Connecting faults from different seismic lines

  3.3 Building fault planes

    4.    Mapping faults in 3D data

  4.1 Mapping faults in vertical and horizontal slices

  4.2 Building fault planes

    5.      Structural models

  5.1 Building a structural model

  5.2 Visualization

  5.3 Geometry, kinetics, geodynamics

  5.4 Palinspastic Reconstructions

Day 4

   1.      Stratigraphic interpretation

  1.1 Horizon interpretation techniques

  1.2 Horizon attributes

  1.3 Continuity and lateral variations

  1.4 Unconformities and stratal terminations

   2.      Seismic facies

  2.1 Carbonate systems seismic facies

  2.2 Siliciclastic systems seismic facies

  2.3 Gross depositional environments

   3.      Advanced stratigraphic interpretation

  3.1 Wheeler diagrams

  3.2  Seismic sequence stratigraphy

Day 5

  1.    The petroleum system elements and processes

1.1 Reservoir

1.2 Seal

1.3 Source rock

1.4 Trap

1.5 Timing and migration

   2.    Mapping hydrocarbon accumulations

2.1 Structural traps

2.2 Stratigraphic traps

2.3 Mixed traps

   3.    Volumetrics

3.1 Leads, prospects, reserves, resources

3.2 Volumetric calculation methods

3.3 P10, P50, P90 and mean

   4.     Risking

4.1 Risking methods and software

4.2 Evaluation of CoS, PoS

4.3 Incorporation of Geological risk into economic evaluations

On successful completion of this training course, PEA Certificate will be awarded to the delegates