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Spectrum: New Norsel High 3D seismic programme in the Barents Sea for 24th Round

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Oilfield Technology,

Spectrum has commenced acquisition of a new seismic survey to facilitate evaluation of key areas available in the ongoing Norwegian 24th licensing round. The new Norsel High 3D acquisition comprises a minimum of 1600 km2, covering 4 blocks that are included in the round.

Data is being acquired by survey partner Sovcomflot (SCF), using its modern high capacity vessel Ivan Gubkin with a triple source configuration and a Q-marine acquisition system. Utilising these latest acquisition technologies combined with modern broadband processing will ensure optimal imaging of several large structural closures at the Jurassic and Triassic levels partially identified in the area from the existing Spectrum 3D seismic library.

The programme further includes 3D broadband reprocessing of 2000 km2 of neighbouring 3D Spectrum data (the NSH12 and BST4 surveys) that cover an additional 6 blocks included in the 24th licensing round. Merging the newly acquired survey with the existing two seismic datasets through a modern broadband processing sequence will result in a single contiguous, conformable dataset of 3600 km2 covering 10 prospective blocks.

A high quality Fast-track 3D volume will be created for delivery before the end of August 2017 allowing sufficient time for evaluation of the area prior to the application deadline of the round on November 30th. Further interim Pre-Stack Time Migrated data will be made available in time for application revision prior to November. Pre-Stack Depth Migration will be optional following round block award.

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