Combining structural and stratigraphic analysis for Oil & Gas exploration


  • 5 to 10 days with 90% of the training duration devoted to practice on real data, starting with textbook examples of structural and stratigraphic geometries
  • Audience: E&P professionals with experience in seismic interpretation
  • Learning objectives: 
    • Grasp the workflow of a 3D seismic interpretation
    • Perform a combined stratigraphic and structural seismic interpretation

Course description

each topic can be addressed in ½ day or more deeply over 1 day

Topic 1 -  Opening session 

  • Surveys presentation of the Barents Sea 3D seismic block and training objectives
  • Recapitulation of the seismic fundamentals that are of direct relevance for interpretation
  • Seismic data preparation, display and overview

Topic 2 -  Seismic Well-tie

  • Digital well logs display (maps and plates), QC, and stratigraphic analysis
  • VClay, GROSS, Net to GROSS, Net Sand computation
  • Synthetic seismogram computation, seismic well-tie and horizon identification

Topic 3 -   Structural interpretation

  • Introduction to extensional, compressional, strike-slip, inverted, and salt tectonics
  • Fault picking, correlation and mapping
  • Interpretation in term of deformational system, stress and strain directions, and fault interplay.

Topic 4 -  Seismic stratigraphy 

  • Introduction to basic concepts of sequence stratigraphy 
  • Recognition of seismic stratal pattern and stratal termination

Topic 5 -   Seismic interpretation

  • Reminder of picking tips
  • 2D horizon picking along 2 lines and inlines/crosslines
  • 3D propagation with various picking parameters

Topic 6 -   Creation of geologically relevant maps

  • Gridding of structural surfaces
  • Isochron computation and analysis

Topic 7 -   Seismic attributes

  • Amplitude extraction along key horizons and/or discrete stratigraphic intervals
  • Signification, computation and usage of various common seismic attributes

Topic 8 -   Seismic facies

  • Seismic facies analysis in cross-sectional view
  • Recognition of depositional environments with seismic attributes
  • Introduction to seismic geomorphology 

Topic 9 -  Depth conversion

  • Review of the different types of velocity
  • Time to Depth conversion using Sonic logs or Time/Depth charts from well data

Topic 10 - Leads and prospect

  • Structural & stratigraphic lead analysis: entrapment, reservoir extension
  • Volume calculation using   petrophysical parameters