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A Case Study of Simultaneous Data Separation with Enhanced Adaptive Subtraction Method: Offshore West of Shetland
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 77th EAGE Conference and Exhibition 2015, Jun 2015, Volume 2015, p.1 - 5
Abstract
We acquired 2D steamer simultaneous source surveys recently at offshore west of Shetland Island. This acquisition configured a sequence of dual sources and a sequence of triple sources in dithering shooting scheme. A case study investigated the capability of an enhanced adaptive subtraction (EAS) method for deblending the real simultaneous streamer data. The results demonstrated that the EAS method can achieve high quality deblending results on both dual source and triple source data. The weak events and complex subsurface structures are preserved very well, and the energy leakages are very little. The main frequency content and frequency notches are also preserved for the broadband data. Furthermore, the SPI test and runtime analysis showed that EAS is not only effective but also efficient so that it can be used as a QC tool during acquisition.