Seismic Reflection FundamentalsMETH/SEISREF

Who should attend?

  • This course provides a thorough understanding of seismic reflection and usual applications.
  • It aims at acquiring fundamental concepts in subsurface imaging for geological interpretation purposes.
Audience :
  • E&P professionals with no or limited experience in seismic.

Level : Foundation

Course Content

  • SEISMIC WAVES PROPAGATION & SIGNAL PROCESSING

      • Seismic waves, rock velocities and densities, Snell-Descartes laws.
      • Reflection coefficients, acoustic impedance.
      • Seismic reflection principle. Seismic shot gathers.
      • Seismic signal vs. Seismic noises. Time domain vs. Frequency domain.
      • Time and space sampling.
  • SEISMIC ACQUISITION

      • 2D and 3D seismic, land, marine, sea bottom seismic.
      • Seismic sources (explosive, vibroseis, air guns…).
      • Seismic receivers (geophones, MEMS, hydrophones…).
      • Streamer, OBC, nodes, shallow water, transition zone…
  • SEISMIC PROCESSING & IMAGING

      • Seismic processing workflows, post-stack versus pre-stack.
      • Enhance signal versus noise.
      • CMP/Bin, static corrections, dynamic corrections, velocity analysis.
      • Stack, post-stack migrations, pre-stack migrations (PSTM - PSDM).
  • BOREHOLE SEISMIC

      • Theory and principles, synthetic seismogram and well-to-seismic tying.
      • Vertical Seismic Profile (VSP), Offset Seismic Profile (OSP), walkaway.
      • Seismic While Drilling (SWD).
      • Examples and applications.
  • SEISMIC INTERPRETATION

      • Principles and methodology, seismic interpretation pitfalls.
      • Hands-on: 2D seismic interpretation (on paper).
  • SEISMIC FOR RESERVOIR ANALYSIS

      • Seismic amplitudes analysis, Direct Hydrocarbon Indicators (DHI), seismic attributes analysis.
      • HR - HQ - HD - Broadband seismic, 4D seismic.
      • Multi-component seismic, P waves vs S waves.
      • AVO-AVA processing and analysis, seismic inversion.
  • SUMMARY, SYNTHESIS & WRAP-UP

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • assess the seismic reflection workflow main steps, from acquisition to interpretation,
  • understand fundamentals of seismic wave propagation with relation to petrophysical properties of subsurface,
  • grasp methodology of surface and borehole seismic acquisition, processing and interpretation.

Ways & Means

  • Interactive presentations, exercises, hands-on, document analysis and videos.