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TGS provides geoscience consulting services for the Santos, Campos and Espirito Santo basins in southern Brazil.

PROJECT DETAILS

TGS has completed an in-depth sequence stratigraphic analysis based on detailed well log data interpretation of key exploration wells.

� 109 wells in the Santos project

� 224 wells in the Campos/Espirito Santo project

In addition, TGS has defined a sequence stratigraphic framework for each basin based on the integrated and interpreted well log data. Depositional environments and associated facies have also been interpreted based on log character for available wells.

Gross depositional environments have been interpreted and mapped for each basin.

� 26 gross depositional environment maps in the Santos project

� 38 gross depositional environment maps in the Campos project

All interpretations and maps have been tied to TGS 2D seismic across each basin. This seismic data has been further interpreted to provide a comprehensive seismic facies analysis. This helps to identify the distribution of reservoir, source and seal units.

Furthermore, a presalt prospectivity study has been completed which provides volumetric calculations and risking parameters for the hydrocarbon leads identified from the play fairway analysis.

Brazilian Shield

Santos Basin

Parana Basin

Espirito Santo Basin

Campos Basin

Sao Francisco Basin

Parana Basin

Bahia Sul BasinTGS 2D Seismic Data

CONSULTING SERVICESOFFSHORE SOUTHERN BRAZIL Sequence Stratigraphic Interpretation, Play Fairway and Prospectivity Study

TGS | OFFSHORE SOUTHERN BRAZIL AUGUST 2013

WWW.TGS.COM © 2013 TGS-NOPEC GEOPHYSICAL COMPANY ASA. ALL RIGHTS RESERVED.

Facies Map Browser example

DELIVERABLES

The sequence stratigraphic interpretation, including all well data, well tops, well interpretation and gross depositional environment maps are delivered via TGS’ proprietary Facies Map Browser (FMB) interface platform.

The deliverables from the seismic interpretation, facies analysis and prospectivity study include:

� Detailed seismic facies analysis

� Timing of salt and fault movement

� Timing and impact of volcanic activity

� Reservoir distribution risk maps

� Top seal integrity distribution risk maps

� Identification of prospective leads

� Catalog of leads and analogs

� Basin temperature modelling

� Heavy oil risk analysis

� Composite trap summary maps

BENEFITS

The benefits of the complete study are:

1. A fundamental exploration tool that takes many man years to complete and therefore few companies complete in such detail

2. A fast track understanding of basin development and shortened exploration cycle time

3. New and extended insight into the gross depositional environments of the region

4. Reduced risk through delineating source, seal and reservoir for use in predictive exploration

5. Enhanced understanding of prospectivity and potential of the area

6. Integrated data in a single environment to improve productivity

REQUIREMENTS:

Clients must license underlying seismic data and available well data for the areas of interest.

UK Tel: +1 713 860 2100 Email: gps-sales@tgs.com

For more information, contact TGS at:

CONSULTING SERVICES: OFFSHORE SOUTHERN BRAZIL

TGS | OFFSHORE SOUTHERN BRAZIL AUGUST 2013

Well log example