Pelotas Basin 2D Multi-Client Seismic Data for 2017 License Round

Brazil: Pelotas Basin 2D Multi-Client Seismic Data for 2017 License Round

Spectrum’s extensive library of Multi-

Legend Client seismic data offshore Brazil Pelotas 1 & 2 - 19,522 km includes 31,597 km of 2D seismic data Pelotas Reprocessing - 12,045 km Contract across the Pelotas basin, located off Round 14 blocks the southeast coast of Brazil.

Spectrum’s Pelotas 2D program, in association with Schlumberger, includes more than 19,500 km of newly acquired data and 12,000 km of recently reprocessed regional data.

There have been a total of eleven wells drilled in the Pelotas Basin, including two in Uruguay and nine in Brazil. Three of these wells were drilled in water depths greater than 200 m, however, none have encountered commercial quantities of hydrocarbons.

There are extensive indications of a working petroleum system including oil seeps visible from satellite images and deep water Bottom Simulating Reflectors (BSRs).

On the conjugate margin to the Pelotas Basin, offshore Namibia, several deep water wells have encountered source rocks in the Mid-Cretaceous section.

Pelotas is the primary basin in this region, and its deep water area measures 1,300 km by 200 km. in association with Its unique location in the south-western Atlantic Ocean

spectrumgeo.com

7102Uk11Bl82 Offset: 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 110000 0.000 0.000

1.000 1.000

2.000 2.000 encompasses a geologic setting from the early Mesozoic. A rift basin province commenced3.000 125 3.000 ma, which led to the separation of the South American and African plates, followed by the progradational4.000 4.000 drift phase of the passive margin from the Mid-Cretaceous to the Tertiary which is still present today. 5.000 5.000

The current primary focus for exploration is further offshore,6.000 in the 6.000 slope and basin floor setting of the deep water region. The exploration plays in this area of focus are7.000 turbidite 7.000 slope channel systems, basin floor fans and low stand deposits. The source rocks for these reservoirs are thermally 8.000 8.000 mature lacustrine shales in the rifted grabens, and post-rift Mid-Cretaceous marine shales. 9.000 9.000 The second focus for exploration is outboard, within the Tertiary depo- centers of the Pelotas Basin.10.000 Structural 10.000 traps have developed within a gravity- driven complex along listric normal faults, and this complex continues11.000 as 11.000 toe-thrust structures further outboard in deeper water. Interpretations of 2D seismic data have led us12.000 to believe 12.000 that early Tertiary marine shales have been buried deep enough in this basinal setting to be the source for this play. Offset: 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 110000 0.000 0.000

1.000 1.000

2.000 2.000

Pelotas PSTM 3.000 3.000

4.000 4.000

5.000 5.000

6.000 6.000

7.000 7.000

8.000 8.000

9.000 9.000

10.000 10.000

11.000 11.000

12.000 12.000

Pelotas PSTM

spectrumgeo.com

Multi-Client 2D Seismic

Survey Facts Survey Pelotas Reprocessing Pelotas Phase 1 & 2 Acquisition Various 2013/2015 Reprocessed 2013 - 2014 2015 Survey Length 12,047 km 19,522 km Vessel various sr/v Hawk Explorer m/v BGP Challenger Source Volume various 5,000 in3 / 4,260 in3

Source Depth various 10 m / 8 m Streamer Length 4,000 m - 4,625 m m 12,000 m Streamer Depth various 15 m Shot Point Interval 40 m - 50 m 37.5 m / 25 m Group Interval 25 m - 50 m 12.5 m Record Length 10 s 13.5 s, 15 s Deliverables PSTM, PSDM, PSTM Gathers, PSTM PSTM, PSDM, PSTM Gathers, PSTM Angle Stacks, Angle Stacks, Velocities and Velocities, Navigation, Field Tapes Navigation

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

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