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E-250 - Tools for Seismic Reservoir Characterization: Pre-Stack Seismic Inversion

E-250 - Tools for Seismic Reservoir Characterization: Pre-Stack Seismic Inversion

5 days
RES/PRESTACK
Sessions
This course is not scheduled.
Who should attend?

Audience

    • Geophysicists, and Senior/Junior geoscientists with a solid seismic background knowledge.

Level

  • Advanced
  • This course makes participants able to perform a pre-stack seismic inversion, feasibility, QC and some clues to interpret the results. This training can be followed by the Pre-Stack Seismic inversion session to complete inversion technique skills.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • run a feasibility study for seismic pre-stack inversion,
  • prepare and load data for seismic pre-stack inversion,
  • run and supervise a seismic pre-stack inversion,
  • perform quality control and interpret the results.
Course Content

INTRODUCTION & REMINDERS

0.25 day

  • Model-based pre-stack inversion: What for? How does it work?
  • Examples.

DATA LOADING & FEASIBILITY

0.75 day

  • Loading well, seismic, horizon data.
  • Initial feasibility: what is the purpose of this inversion? Analysis of the data.
  • Gather analysis and preconditioning.

WELL-TO-SEISMIC CALIBRATION & WAVELETS

1 day

  • Sonic log correction.
  • Seismic wavelet extraction and analysis.
  • Well-to-seismic calibration.
  • Choosing final wavelets.

INITIAL MODELING

1 day

  • Role of initial or low frequency model.
  • Choosing wells and horizons.
  • Initial model building: IP, IS, Rho.

INVERSION TESTING & RUNNING

1 day

  • Inversion parameter sensitivity testing.
  • Running final inversion.
  • QC of inversion results.

INTERPRETING THE RESULTS

1 day

  • Deliverables: IP, IS, Rho.
  • Generating “Lamé” parameters.
  • Clues for Interpretation of pre-stack inversion.
Ways & Means
  • The training will be performed in workshop mode, using a standard case study*. Interactive presentations, exercises, document analysis will help to understand the key steps.
  • Dedicated industry software will be used for this training.