Brasil Round 4

Campos Basins

Orivaldo BagniBlock Definition Superintendency

CAMPOS BASIN

• PresentationØLocationØGeneralitiesØTectono-stratigraphic evolutionØPetroleum SystemØFields ModelsØBlocks for bidding

CAMPOS BASINLocation Map

Area of the basin:115,800 km2

Wells: 826 (391 wildcats)Oilfields: 39Production: 1,070,000 b/dMarlim: 567,000 b/d

CAMPOS BASIN

• GeneralitiesØArea: 115.800 km²ØBoundaries: - Cabo Frio High (Santos) - Vitória High (Espírito Santo)ØExploratory Wells: 826 (391 wildcats)ØFields: 39 (Marlim: 567,000 b/d)ØDaily Production: 1,070,000 barrels

CAMPOS BASIN

• Tectonic-stratigraphic evolution

ØStarting: Mesozoic (rift Pelotas to Pe-Pb)Neocomian Basalts (Fm.Cabiúnas)

ØRift: Barremian Sequence (Lagoa Feia Fm).Principal source rock.

ØTransitional: Aptian (Lagoa Feia Fm).Evaporites (Santos to SE-AL gulf).

CAMPOS BASIN

• Tectonic-stratigraphic evolution

ØDrift: Starting in Albian (Macaé Fm).Cenomanian-Turonian (“Bota” Interval andNamorado sandstones) - Fault trend.

− Transgressive Phase: Senonian-Paleocene(Campos Gr)

− Regressive Phase: Eocene-Miocene (Campos Gr).Serra do Mar reactivation (deltaic and turbidite fans).

CAMPOS BASIN

Stratigraphic Chart

Badejo HighCorvina-Parati Low

OuterHigh

Marlim Low

Salt Dome Province

Albian Carbonates

TurbiditesK. & T.S. J. da Barra Low

CAMPOS BASIN

Schematic Geological Section

CAMPOS BASIN

• Sistema PetrolíferoØSource RocksØReservoir Rocks /SealsØPrincipal PlaysØGeneration/MaturationØMigration/Trapping

• Source rocksØShales and marls of the Lagoa Feia Fm

– TOC: 2 to 6%. Locally 9%.– HI: up to 900 mgHC/g TOC.– Thickness: 100 - 300 m.– Organic Matter: Type I and II.– S2: up to 38 mgHC/g of rock.

CAMPOS BASINPetroleum System

CAMPOS BASINTypical Geochemical Log

CAMPOS BASINPetroleum System

• ReservoirsØTurbidites of Carapebus Fm (K & Tert).ØCarbonates and “Namorado” sandstones of

the Macaé Fm (Albian-Turonian).ØCoquinas of the L. Feia Fm (Barremian).ØBasalts of the Cabiúnas Fm (Neocomian).

• Cap rocksØCalcilutites, marls and shales

Macaé Play

Rift Play

K. & Tert. Turb. Play.

CAMPOS BASINPrincipal Plays

RESERVOIR POROSITY

(%) PERMEABILITY

(mD)

Neocomian basalts fractured high

Barremian carbonates (coquinas) of the rift 15-20 Up to 1,000

Albian carbonates ~18 45 (Garoupa)

Upper Cretacous turbidites 20-25 100 to 1,000

Tertiary turbidites 25-31 Up to 2,500

Reservoirs

CAMPOS BASIN

CAMPOS BASINPetroleum System

• Generation/MaturationØBeginning of the oil generation window:

Oligocene/Miocene.

ØGeneration remains up to now in a majorportion of the basin.

CAMPOS BASIN

Maturation/Generation Areas

CAMPOS BASIN

Maturation/Generation Areas

CAMPOS BASIN

Petroleum System

• MigrationØPrincipal: Through listric faults (Lagoa Feia

Fm source rocks – drift reservoirs).

• TrappingØStructuralØStratigraphicØMixed (Paleogene reservoirs)

CAMPOS BASINEvent Chart

Lagoa Feia - Carapebus (!)

CAMPOS BASINCarapeba Field

Horschutz, P.M.C., et al, 1992

CAMPOS BASINVermelho Field

Horschutz, P.M.C., et al, 1992

CAMPOS BASINRoncador Field (Schematic)

CAMPOS BASINDiscovery Under Evaluation

CAMPOS BASIN

Blocks for Bidding

• Shallow water blocksØ BM-C-21, 22 & 23

• Deepwater blocksØ BM-C-20, 24 & 25

• Regional Data:Ø 2D Seismic: 4,940 kmØ Wells: 12

CAMPOS BASIN

Regional Seismic and Wells

CAMPOS BASIN

Structural Framework

CAMPOS BASIN

2D Seismic: Blocks BM-C-20 to 25

CAMPOS BASIN

3D Seismic: Blocos BM-C-21 a 25

CAMPOS BASIN

Wells: BM-C-21, 22, 23 and 24

CAMPOS BASIN

Wells: BM-C-25

CAMPOS BASIN

Shallow Water Blocks

• Blocks BM-C-21, 22 and 23ØTotal area: 3,117 km².ØWater depth: 10 to 75 m.ØWells drilled: 45ØPlays: Albian calcarenites and sandstones; and

Cen/Tur “Namorado” sandstones (Macaé Fm).Ø1-RJS-127 - Coquinas of Lagoa Feia Fm

(37º API)Ø1-RJS-548A – “Namorado” sands (20º API)

CAMPOS BASINShallow Water Blocks

SEISMIC (Km) BLOCKS

AREA (Km2)

WATER DEPTH

(m) 2D 3D

EXPL. WELLS

BM-C-21 1072 25 - 75 2173 576 17

BM-C-22 972 40 - 75 1645 2854 24

BM-C-23 1072 10 - 50 2524 - 4

CAMPOS BASINDeepwater Blocks

• Blocks BM-C-20, 24 and 25ØTotal area: 3,792 km².ØWater depth: 100 to 3,000 m.ØWells drilled: 13.ØPlays: Tertiary and Cretaceous turbiditic

sandstones.Ø1-ESS-104B – Upper Cretaceous sandstonesØ1-ESS-95A - Paleocene and “Namorado”

sandstones.

CAMPOS BASINDeepwater Blocks

SEISMIC (Km) BLOCKS

AREA (Km2)

WATER DEPTH

(m) 2D 3D

EXPL.

WELLS

BM-C-20 2231 2500 - 3000 527 - -

BM-C-24 602 100 - 1500 1527 2114 7

BM-C-25 959 600 - 1700 890 12690 6

BLOCKS EXPL.

PERIODS (Years)

1st PER. 2D SEIS.

(km)

2nd PER. WELLS

3rd PER. WELLS

MINIM. DEPTH

GUARANT. 1st PERIOD

(US$MM)

TECHNICAL QUALIF.

(Operators)

BM-C-20 3+3+3 2000 2 2 Tamoios Mb 2,0 A

BM-C-21 3+3+2 1000 2 2 Macaé Fm 1,0 B

BM-C-22 3+3+2 1000 2 2 Macaé Fm 1,0 B

BM-C-23 3+3+2 1000 2 2 Macaé Fm 1,0 B

BM-C-24 3+3+2 1000 2 2 Tamoios Mb 1,0 A

BM-C-25 3+3+2 1000 2 2 TamoiosMb 1,0 A

CAMPOS BASINMinimum Exploration Program