PRACTICAL SEISMIC DATA PROCESSING

  • Seismic processing is inherently mathematical. However, this course uses cartoons and real data examples to provide an intuitive understanding of the seismic processing procedures, resorting to an algebra-based argument on rare occasions. In total, the course contains more than one thousand illustrations, many representing the underlying mathematics.
  • The course participants receive the instructor’s eBook which contains the course content, including full narratives and illustrations.

 

  • Discipline: Geophysics
  • Level: Intermediate
  • Duration: 4 Days

Syllabus

  • Simple imaging using zero-offset data, with the use of the NMO equation and Dix interval velocities
  • Concept of zero-offset migration
  • Artifacts introduced by migrating incomplete data, including 2D data
  • Role of velocity in migration
  • Kirchhoff and reverse-time, zero-offset migration algorithms
  • Fourier transform (amplitude and phase), convolution and correlation
  • Normal moveout correction and stack to convert data to zero offset
  • Noise
  • Estimation of stacking velocities
  • NMO and stack’s failures
  • Kirchhoff before-stack migration
  • Three imaging conditions and before-stack, wave-equation migration algorithms
  • Multiple attenuation and role of wide-azimuth acquisition geometry in multiple attenuation
  • Statics, land and marine
  • Amplitude corrections
  • 1-D and 2-D filtering, including f-k filtering
  • Wavelets and Deconvolution
  • The Fresnel zone
  • Improving spatial resolution
  • Improving resolution of depth estimation
  • Sample processing sequences
  • Ramifications of processing decisions

Audience

  • Geophysicists work with Processing, Acquisition, and interpretation that are actively involved in seismic processing and/or liaise with seismic processing contractors.
  • Geophysicists who are involved in special studies should have a thorough understanding of conventional processing.

Prerequisites

No Prerequisites required for this course