Development of a seismic processing sequence 2D seismic procedure observations ( on an example of Olhivska area).

Abstract

Seismic processing sequence 2D seismic grids in Focus (Paradigm): 1. Data entry seismic observations in RAW format in the project, creating job file in format DSK. 2. Calculation of the location of the coverage CDP on curved profiles, entering them into a database (the program CDPLINE). 3. The choice of profiles and assigning the track geometry seismic observations 2D (programs COLLECT, PROFILE). 4. Manually editing of data (EDIT, IEDIT). 5. Definition of a priori kinematic corrections (DEFINE). 6. Calculation of initial static corrections determined by the relief +100 meters (DATUMS). 7. The amount of the initial static and kinematic corrections in an open channel (NMO, MUTE, AGC, STACK). 8. Calculation of priori static corrections by the method of refracted waves to bring the level of 100 m (programs FBNET, REFSOL). 9. The amount of a priori static corrections calculated by the method of refracted waves in an open channel (NMO, MUTE, AGC, STACK). 10. Preprocessing seismograms - editing tracks with a high level of noise entering a priori static corrections, relaxation constant component runs, recovery enhancement amplitudes based on spherical divergence, conservation values ​​in the header seismic database, calculation of the logarithms of the energy spectra of runs, the calculation of binary multiplicity of overlapping (EDIT program , IEDIT, QUIXTAT, DEBIAS, GAIN, HDRMATH, SURFAN). 11. Surface-consistent amplitude equalization, predictive deconvolution, filtering angles to eliminate regular waves, interference, regulation seismograms, balancing, sort by BHT (SURFAMP, DECONA, TSCALE, LFAF, DESCLE, AMPSCAL, SUPPRES, DEBIAS, ENSEQU, BALANCE, SORT ). 12. The first sum after deconvolution of the a priori parameters of static and kinematic corrections (NMO, MUTE, AGC, STACK). 13. he first analysis of kinematic corrections (AGC, MUTE, VELDEF). 14. The amount after the first correction kinematic corrections (NMO, MUTE, AGC, STACK). 15. The first correction surface-coordinated static corrections (NMO, MUTE, AGC, PREPARE, STATICR). 16. The amount of correction after the first surfactant coordinated static corrections (QUIXTAT, NMO, MUTE, AGC, STACK). 3 analyzes of the kinematic corrections was performed. 17. At the end of processing was performed post-stack Kirchhoff Time Migration 2D seismic sections (MIGTX).