Sergipe Alagoas Basin 2D Multi-Client Seismic Available

Brazil: Sergipe Alagoas Basin 2D Multi-Client Seismic Available

Legend Pernambuco- Paraiba Phase 1: 5,600 km Sergipe Alagoas 2014 - 16,341 km Sergipe Reprocessing - 9,638 km Round 16 Blocks

In 2014 Spectrum completed acquisition of a 16,000 km PreSTM and PreSDM data is available now. Multi-Client 2D seismic survey offshore Brazil in the Sergipe and Alagoas Basins along the eastern margin of Brazil. To complement the new acquisition in this active The acquisition program ties key wells in these basins, exploration area, Spectrum has also completed the including the recent Barra, Muriu, and Farfan discoveries reprocessing of 9,600 km of data through both PreSTM in the Sergipe Basin. and PreSDM. Both new and existing seismic data covers several blocks awarded in Brazil’s 14th and 15th Licensing The data was acquired with a 10,000 m offset in order to Rounds. better image the basin architecture and the prospective zones in the mid and lower Cretaceous sections.

spectrumgeo.com

8102Sa30br82 New Acquisition

New Acquisition Exploration History The Sergipe-Alagoas Basin in northeast Brazil has been producing oil and gas for more than 40 years from the offshore area, and in 2010 Petrobras discovered a new offshore province outboard of existing production. Petrobras and its partners have discovered numerous fields that warrant further evaluation within this 10,000 km² area, and preliminary development plans are ongoing.

In all, approximately 20 exploration and appraisal wells have been drilled in water depths ranging from 1,000 m to 3,000 m. The discoveries comprise 3 billion barrels of oil in place and recent appraisal wells are causing that number to rise. These discoveries are in turbidite channel systems of late Cretaceous to early Tertiary age, as well as older, rifted basin fill. It is highly probable that these plays extend further outboard to the east and southeast where additional opportunities exist in a basin floor fan setting. To the northeast, primarily in the Alagoas Basin, exploration opportunities exist in the channel fill sediment play, rifted basin fill, and faulted Paleozoic sediments.

Spectrum has acquired new, long offset 2D seismic in prospective areas of the Sergipe and Alagoas Basins and has reprocessed existing seismic data. The new acquisition and reprocessed data have the same phase and polarity, and create an integrated data volume spanning the shallow water shelf to the deep water basin.

spectrumgeo.com

Multi-Client 2D Seismic

Survey Facts Survey Sergipe Reprocessing Sergipe Alagoas Acquisition 1980 - 2000 2014 Reprocessed 2013 - 2014 - Survey Length 9,600 km 16,000 km Vessel various sr/v BGP Challenger

Source Volume 540 in3 - 5,595 in3 Air Gun Array 4,260 in3 Air Gun Array

Source Depth 4 m - 7 m 10 m Streamer Length 2,375 m - 8,100 m 10,000 m Streamer Depth 8 m - 10 m 15 m Shot Point Interval 25 m - 50 m 25 m, 37.5 m Group Interval 25 m - 50 m 12.5 m Record Length 5 s - 12 s 10.5 s, 13.5 s Deliverables PSTM, PSTM Gathers, PSTM Angle PSTM, PSDM, PSTM Gathers, PSTM Angle Stacks, Stacks, Velocities, Navigation Velocities, Gravity and Magnetics, Navigation, Field Tapes, De-ghosted PSDM, Broadband PSDM, AVO Products

For more information please contact Spectrum’s Multi-Client sales teams:

United Kingdom Norway United States Australia Spectrum Geo Ltd Spectrum ASA Spectrum Geo Inc Spectrum Geo Pty Ltd t: +44 1483 730201 t: +47 230 14960 t: +1 281 647 0602 t: +61 8 6324 3900 f: +44 1483 762620 f: +47 230 14961 f: +1 281 589 8111 f: +61 8 6324 3999 e: [email protected] e: [email protected] e: [email protected] e: [email protected]