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oa Justifying Broadband Seismic Acquisition
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE/SPG Workshop on Broadband Seismic, Jun 2014, cp-403-00016
- ISBN: 978-90-73834-93-4
Abstract
One of the future trends in ‘broadband’ must be to reconcile the visionary with the practical: The geological significance of seismic data is easier to communicate using layer based impedance than it is using interface reflectivity, but many interpreters distrust the additional steps required to derive impedance from reflectivity. Many interpretation workflows involve mapping interfaces quickly, and this has created a thriving market for reflectivity (not impedance) volumes and bandwidths optimized to detect interfaces of interest. When interpreters say that they dislike ‘broadband’ reflectivity (as some of them do) it is missing the point to reply that, in principle, enhanced low frequencies feed through into improved impedance products. The reconciliation requires us to show that the improved bandwidth can be exploited practically and reliably in large data volumes using accessible workflows.