Spectrum Geo: Sergipe Basin Undrilled Potential Surpasses Giant Offshore Discoveries



Focus on Brazil: Spectrum’s geoscientists discuss how the evaluation of 16,000 km of modern, high quality, long-offset 2D seismic data, acquired by Spectrum in 2014 over the Sergipe Alagoas Basin, has confirmed the extension of a turbidite channel system into open acreage offered in the ongoing licensing Round 14. First published in Geo ExPro, May 2017.

This channel system has been proven to contain several billion barrels of reserves from recent exploration programmes, including the Barra, Muriu and Farfan discoveries. Integration of derived seismic attributes and potential field data has resulted in a better understanding of the main elements of the petroleum system, allowing for the identification of multiple untested play types. This evaluation demonstrates that the undrilled potential offshore Sergipe may surpass the discovered resources to date.

The long-offset 2D seismic data was processed through pre-stack time migration using conventional techniques, and through pre-stack depth migration using both conventional and broadband processing techniques. The application of these two technologies resulted in seismic data with a vertical resolution as fine as 5–10 m, allowing identification of additional levels of interest which are mostly beyond seismic resolution in the conventionally processed seismic data.


More     Link

Leave a Reply

Your email address will not be published. Required fields are marked *

I accept that my given data and my IP address is sent to a server in the USA only for the purpose of spam prevention through the Akismet program.More information on Akismet and GDPR.

This site uses Akismet to reduce spam. Learn how your comment data is processed.