EBN Seismic Processing Minisymposium – Utrecht

In recent years many seismic data from the North Sea offshore have been (re)processed, leading to far better data quality than to the original data. In a combined effort, EBN and GDF Suez hosted a mini symposium where various processing consultants presented the technologies and opportunities in this area. As seismic (re-)processing is one of the main areas of expertise of AmsterdamPG, we were one of the presenters.
 
Pre-stack data
Seismic processing and reprocessing is one of the possible activities to maximize the output of available seismic data in oil and gas projects. The presentations clearly showed that various methods of processing bring significanft signal improvement. Examples are PSDM, Common Reflection Surface (CRS) and MultiFocusing processing, multiple elimination, 5D interpolation, diffraction imaging, broadband processing and velocity model building. These processes lead to  improved results with respect to conventional imaging like Kirchhoff migration.

Post-stack data
Henk Koster (EBN) pointed out that oil and gas operators currently do not deliver the original prestack field seismic data to the Dutch state. According to the Dutch Mining law, operators are obliged to send the final processing results of geophysical research to the Ministry. As the specific text of the law can be interpreted in different ways, only initial poststack data is sent to the Ministry, leaving the original prestack field data to the operators. As a result, only poststack seismic data is publicly available through the Dutch Oil and Gas Portal (www.nlog.nl). Although the best results of seismic (re-)processing can be obtained by use of the original pre-stack data, AmsterdamPG was one of the few indicating the potential of reprocessing post-stack seismic data.

The presentation of AmsterdamPG is available here. Feel free to ask AmsterdamPG which pre-stack and post-stack reprocessing we can do for you with fast turnover at sharp rates.

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