STA 7 Bacia Dos Parecis Ingles

BrazilBrazil Round 10Round 10

Parecis Parecis BasinBasin

Geologists Marcos André Rodrigues Alves, Marina Abelha Ferreira and Bolívar

da Silva HaeserBid Areas Department

Parecis Parecis BasinBasin

BasinBasin LocationLocation

MTRO

TO

AM PA

Area: 355,400 km2

Age: Neoproterozoic

Sedimentary thickness: >6,000m

Parecis

DF

MS

GO

BasinBasin BoundariesBoundaries

~600 km from the frontal fault of the Andes Cordillera

The basin boundaries are delimitated by the Paleozoic outcrops

Parecis

Alto Xingú Arch

Rio Guaporé Arch

� Economically active region: agriculture, poultry and livestockraising;

� Energy and communications, with well established technical-commercial structure, enabling specialized service offerings;

InfrastructureInfrastructure

� Available manpower;

� The region has a good road system and relatively nearby air andrailway connections;

� It lies close to regional centers (Goiânia, Brasília, Cuiabá, Campo Grande);

� Eventual gas production could be directly absorbed;


RO

CENTRO-OESTE REGIONTRANSPORT INVESTMENTS FORECASTING 2007-2010

BR-242-MTBR-158-MT

Railroad Norte-Sul - GO

Offered Blocks


MG

TOTAL INVESTMENT: R$ 3.5 billion

BR-356-MT

BR-163-364-MT

BR-070-GO

BR-060-GO

BR-153-GOFerronorte Rondonópolis-MT

Dredging and rock waste removalWaterway Paraná-Paraguai – MS-MT

Source: http://www.planejamento.gov.br/arquivos_down/noticias/pac/070123_PAC_INFRA-ESTRUTURA.pdf

Gas Pipelines: 7,662 km

•Transference: 2,228 km

•Transport: 5,434 km

Natural Natural GasGas TransportationTransportationInfrastructureInfrastructure

Bolívia-Brasil (in Brazil): 2,583 km

R10 Blocks

NGPUs

Cities

Gas Pipelines

Gas Pipelines under construction

Capitals.

Bolívia-Brasil (in Brazil): 2,583 km

Northern Part: 1,418 km

Southern Part: 1,165 km

Uruguaiana-Porto Alegre: 615 km

Part 1: 25 km

Part 2: (under construction): 565 km

Part 3: 25 km

Lateral Cuiabá (in Brazil): 267 km

Anuário Estatístico Brasileiro do Petróleo e do Gás Natural - 2007

ExploratoryExploratory ReviewReview


� 1970 decade: geological recognition mapping (1:250,000 scale) byDNPM in agreement with CPRM;

� 1988-1989: Petrobras began exploratory activities in the Parecis Basin,with gravimetric and aeromagnetometric surveying of the Juruena Sub-with gravimetric and aeromagnetometric surveying of the Juruena Sub-basin (central part of Parecis Basin);

�1989: Siqueira, L. P. integrated geological mapping to geophysical dataobtained by other authors, publishing a good synthesis about theParecis Basin;

�1988–1991: surface geological studies, confirming the variouslithostratigraphic units mapped by CPRM (Siqueira et al. 1988,1991);

�Discovery of a thermogenic gas seep at the locality of Salto Magessi(Teles Pires river), in the southeastern part of the Juruena Sub-basin


(Teles Pires river), in the southeastern part of the Juruena Sub-basin(Siqueira 1989; Santos et al. 1990);

� 1992: regional seismic reconnaissance, followed by gravimetricsurvey along the seismic lines. Identification of the basin depocenter, with calculated depth of 5,000m at the Chapada dos Parecis, as well as six depositional sequences, separated by regional unconformities.

� 1993: stratigraphic well 2-FI-0001-MT (09/04/93) drilled in the Rondônia Sub-basin, with a total depth of 2,386 m;

� 1995: stratigraphic well 2-SM-0001-MT (01/30/95) drilled in the Juruena


Sub-basin, with a total depth of 5,777 m;

� 1995: aerogravimetry and aeromagnetometry surveys (Petrobras) over the whole basin;

� 2007/08: ongoing surface geochemistry survey contracted by ANP (2,400 sampling points), with good results being already obtained in regional sampling as well as in surface geochemical analysis.

� Exploratory Wells: 2 (stratigraphic)

2-FI-0001-MT(1993): 2,386 m

2-SM-001-MT(1995): 5,777 m (1 well/177,700 km2)


AvailableAvailable DataData

� 2D Seismic Survey: 490.6 km (linear)

� Aerogeophysic Grav/Mag Survey: 228,061 km (linear)

WELL 2SM 0001 MT 2FI 0001 MT

LATITUDE -13:30:44.408 -14:05:08.309

LONGITUDE -55:24:37.818 -57:59:39.279


WellsWells

DEPTH 5777 2386

ROTATING TABLE 406 644

CLASS DRY HOLE DRY WITHOUT SHOWS

REMARKS

Gas shows at:4762-4768m (Ponta Grossa Fm.)4983-4987m (Proterozoic Alto Paraguai Gr.)5094-5095m (Proterozoic Alto Paraguai Gr.)DST nº2, 4981-4990m (Proterozoic), revealstight sandstone with rare drops of black oil.

Exploratory ReviewExploratory Review

Location of Seismic/WellsLocation of Seismic/Wells

2D Seismic Survey: 2D Seismic Survey: 490.6 km (linear)Exploratory Wells: Exploratory Wells: 2 stratigraphic wells (1 well/177,700 km2)

Salto Magessi gas seep (Teles

Pires river)


SurfaceSurface GeochemistryGeochemistry

SurfaceSurface GeochemistryGeochemistry SurveySurvey: : 2,400 sampling points and 14 gas seep samples

PreliminaryPreliminary ResultsResults

GasGas GeochemistryGeochemistry

00

Methane (C1) Ethane (C2) Propane (C3)

Butane (C4) Pentane (C5) Hexane (C6)Red spots (3rd order anomalies) - Orange spots (2nd order anomalies) Yellow spots (1st order anomalies)

ExploratoryExploratory EffortEffort

GravimetryGravimetry

Parecis Basin Bouguer anomaly map. Source: Bahia et al. (2007).


Residual Residual GravimetricGravimetric

Parecis Basin residual gravimetric map. Source: Bahia et al. (2007).


MagnetotelluricMagnetotelluric

Parecis Basin magnetotelluric profile location map. Source: Observatório Nacional


MagnetotelluricMagnetotelluric

Parecis Basin magnetotelluric profile. Source: Flexor et al. (2005)

GeologyGeology

Tectonic EvolutionNeoproterozoic

Neoproterozoic rifting

Caiabis Formation depositionFluvial environment

Neoproterozoic sag

Araras Group depositionLimestones Cap (Marinoan Glaciation)Transgression/Shallow marine environment

Alto Paraguai Group depositionMarine environment

Pimenta Bueno Graben

Colorado Graben

Tectonic EvolutionPaleozoic

(A) Taphrogenesis – SW sector of the Amazonic Craton extension

(B) Cacoal Formation deposition

(c)(C) Koilogenesis: end of the rift phase

Regional Subsidence: Furnas, Ponta Grossa, Pimenta Bueno, Fazenda da Casa Branca, Rio Ávila, Anari and Parecis formations deposition

Source: Bahia et al. (2007), modified from Siqueira, 1989

Parecis Basin Stratigraphic chart

Fazenda Casa Branca Fm.

Rio Ávila Fm. Anari Fm. Parecis Fm.Araguaia Fm.

Sag

Boletim de Geociências da Petrobras, no.1, vol.8, 1994.

Araras Gr. + Alto Paraguai Gr.

Caiabis Gr.

Cacoal Fm.

Furnas Fm. and Ponta Grossa Fm.

Pimenta Bueno Fm.

Fazenda Casa Branca Fm. Sag

Ptz Sag

Ptz Rift

Paleozoic Rift

Basement: Amazon Craton

Parecis Basin Stratigraphic chart

Gondwanide Orogeny

Andean Orogeny

Boletim de Geociências da Petrobras, no.1, vol.8, 1994.

Caledonian Orogeny

Hercynian Orogeny

Structural Framework

� Three tectono-sedimentary domains

I. Western domain: Rondônia Sub-basin

II. Central domain: Juruena Sub-basin

II. Eastern domain: Alto Xingu Sub-domain

Source: Bahia et al. (2007) modified from Siqueira, 1989

Structural Framework

Rio Branco Structural High

Colorado Structural Low

Pimenta Bueno Structural Low

Platforms

Geologic Map

Seismic and Geologic cross-section

Source: Teixeira, L. B. (2005)

I – Proterozoic/EoPz

II- SD/PC sequences

III- PT/J/K sequences

Seismic and Geologic cross-section

Line 240-0071 Line 240-0073

Source: Teixeira, L. B. (2005)

PetroleumPetroleum SystemsSystems

Source RocksP

ERM

O-

CA

RB

ON

IFER

OU

S

PERMO-CARBONIFEROUS

Pimenta Bueno Fm.

Radioactive black shale

NEO

PR

OTE

RO

ZOIC

DEV

ON

IAN DEVONIAN

Ponta Grossa Fm.


NEOPROTEROZOIC

RIFEAN/VENDIAN

Alto Paraguai Gr.


Araras Gr. – MarlSchematic stratigraphic chart. Source: Petrobras (1994)

Source Source RocksRocks

Possibility of oil maturation by

burial (Neoproterozoic)burial (Neoproterozoic)

Gravimetric Data

Gravimetric map of the basin (Petrobras)

Top of the

Ponta Grossa Fm.

Radioactive black shales

Top of the Ponta Grossa Fm. - 3D

Top of the Neoproterozoic - 3D

Top of the Neoproterozoic 3D

Top of the Ponta Grossa Fm.

and the Neoproterozoic - 3D

CA

RB

ON

IFER

OU

S

PERMIAN

Fazenda Casa Branca Fm. sandstones

PER

MIA

NReservoir Rocks

Furnas Fm. sandstones

DEVONIAN

PERMO-CARBONIFEROUS

Pimenta Bueno Fm. sandstones

NEO

PR

OTE

RO

ZOIC

DEV

ON

IAN

PER

MO

-C

AR

BO

NIF

ERO

US

Alto Paraguai Gr. sandstones

Araras Gr. limestones

NEOPROTEROZOIC

Schematic stratigraphic chart. Source: Petrobras (1994)

PERMIAN

Fazenda Casa Branca Fm. shales

--C

AR

BO

NIF

ER

OU

SC

AR

BO

NIF

ER

OU

SP

ERM

IAN

Seal Rocks

Alto Paraguai Gr. shales

Ponta Grossa Fm. shales

Araras Gr. evaporites

NEO

PR

OTE

RO

ZOIC

DEV

ON

IAN

PE

RM

OP

ER

MO

--C

AR

BO

NIF

ER

OU

SC

AR

BO

NIF

ER

OU

S

NEOPROTEROZOIC

DEVONIAN

Schematic stratigraphic chart. Source: Petrobras (1994)

� Oil seep at Mirassol d´Oeste town (Nogueira et al., 2001)

�Macro and Micro gas seeps at Salto Magessi associated with δ13

C values

varying from -50 ‰ to -36 ‰

PetroleumPetroleum SystemsSystems

Presence of an active petroleum system with thermogenic generation

Oil seep at Mirassol Oil seep at Mirassol DD´́OesteOeste

Location map

Carbonatic rocks of the Araras Gr. impregnated with oil

Samples collected at Terconi quarry (2002)

Oil seep at Mirassol Oil seep at Mirassol DD´́OesteOeste

Images kindly given by Prof. Carlos Alvarenga

1000

2000

3000

4000

5000

6000

7000

8000

NSO COMPOUNDS

Gas chromatography analysis: slight biodegradation. Partial absense of n-alcane pattern. Abundant compounds. Abundance of NOS compounds concentration.

OilOil seepseep atat Mirassol Mirassol dd´́OesteOeste

10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.000

Time-->

-34.0

-32.0

-30.0

-28.0

-26.0

-24.0

-22.0

-20.0

Ad

am

an

tan

e

1-M

ead

a

1,3

-Dim

ead

a

1,3

,5-T

rim

ead

a

2-M

ead

a

1,4

-Dim

ead

a (

cis

) *

1,4

-Dim

ead

a (

tran

s)

*

1,3

,6-T

rim

ead

a

1,2

-Dim

ead

a *

1,3

,4-T

rim

ead

a (

cis

)

1,3

,4-T

rim

ead

a (

tran

s)

1,2

,5,7

-Tetr

am

ead

a

Axis

Titl

eMirassol (AHD2201)

Silurian Saudi Arabia


Devonian Algeria

Devonian Algeria

PreCambrian Oman

PreCambrian Oman

-34.0

-32.0

-30.0

-28.0

-26.0

-24.0

-22.0

-20.0

Ad

am

an

tan

e

1-M

ead

a

1,3

-Dim

ead

a

1,3

,5-T

rim

ead

a

2-M

ead

a

1,4

-Dim

ead

a (

cis

) *

1,4

-Dim

ead

a (

tran

s)

*

1,3

,6-T

rim

ead

a

1,2

-Dim

ead

a *

1,3

,4-T

rim

ead

a (

cis

)

1,3

,4-T

rim

ead

a (

tran

s)

1,2

,5,7

-Tetr

am

ead

a

Axis

Titl

eMirassol (AHD2201)



Devonian Algeria

Devonian Algeria

PreCambrian Oman

PreCambrian Oman

CSIA-D data showing

correlation with Saudi

Arabian and Argelian

Paleozoic oils

Images kindly given by HRT Company

OfferedOffered BlocksBlocks

OfferedOffered BlocksBlocks

Total area:

14,025.97 km²PRC-T-105

PRC-T-106PRC-T-104

6 exploratory blocks on the western region of the

Parecis BasinPRC-T-121 PRC-T-123

PRC-T-122

MinimumMinimum BonusBonus

Sector Name SPRC-L

Exploratory Class New Frontier

Number of Blocks 6

Total Bid Area 14,025.97 km²

Programa Exploratório Programa Exploratório MínimoMínimo

Total Bid Area 14,025.97 km²

Mean Block Area ~ 2,400 km²

Exploration Phase 6 years

Exploratory Period 4 + 2 anos

Operator Technical Qualification C

Minimum Bonus R$ 65,000.00 to R$ 130,000.00

Minimum TargetPimenta Bueno Formation

(Carboniferous)

Final Final RemarksRemarks

Final Final RemarksRemarks

� New Frontier Basin still poorly investigated, but promising due tostrong gas seeps (Teles Pires river, at Salto Magessi) and to theoccurrence of hydrocarbons in outcrops of the Neoproterozoic ArarasFormation (Mirassol D`Oeste, ~ 100 km south of the SW border of thebasin).

� The Proterozoic outcrops can be found around the basin. The� The Proterozoic outcrops can be found around the basin. Thepresence of these sediments also in the 2-SM-0001-MT well showsthat the basin evolution started with an intracratonic rift and evolvedconsequently to a thermal sag type.

� The Parecis Basin hydrocarbon generation has a thermogenic origin>>> ACTIVE petroleum system.

� The exploration history shows that these activities ceased after the“Emenda Constitucional nº 9, 1995”.

Teles Pires river gas seepTeles Pires river gas seep

Bolívar da Silva Haeser

[email protected]

Marcos André Rodrigues Alves

[email protected]

Marina Abelha Ferreira

[email protected]

www.brasil-rounds.gov.br

Documents

STA 7 Bacia Dos Parecis Ingles