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