Seismic Vectorizing / Seismic Reconstruction
By awal_striker on Sep 15, 2011 | In Seismic | Send feedback »
Most of the old seismic data archive that exists today available only in the of hardcopy format. The tapes that contained the data have mostly are lost, unreadable or not available for some other reason. Seismic Vectorizing or Seismic Reconstruction is a process that convert seismic data from hardcopy (seismic paper) to softcopy or standard digital format i.e. SEGY format
Different seismic vectorization algorithms are used depend on the quality of the original image. Several post-stack processing can be applied to enhance the data quality of the original processing by using different processing modules and output to SEG-Y.
Reprocessing and enhancement of 2D post stack seismic data can be applied (either derived from scanning or from existing digital data), such as:
Band pass filtering
Trace scaling (AGC or TV scale)
Deconvolution
Trace Mix
Noise attenuation (FXDECON)
FK- filtering
Trace interpolation
Trace editing and shot point insert
Migration
Vectorizing result overlaid on the original image
The data preconditioning is one of key process to output a good seismic vectorizing result. Any interpretation , sketch , mark , fold mark should be eleminated before conversion. One way to see the vectorizing result is overlying the seismic vectorizing result on the original image. Note on the image above that the result fits on every seismic event and the interpretation is eleminated.
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