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.
- 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
- 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
- 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.