POTENTIAL & ACREAGE Centrale du Cap des Biches Bargny ... Talks 2015/Denver 2015 Senegal.pdf · AAPG 2015 DENVER CO 1 SENEGAL BASINS POTENTIAL & ACREAGE THIES Bargny Rufisque DAKAR

1AAPG 2015 DENVER CO

SENEGAL BASINS

POTENTIAL & ACREAGE

THIES

BargnyRufisque

DAKARCentrale du

Cap des Biches

Station deKabor

Diam Niadio Est

Gadiaga-2

Wy-1

PERMIS de THIES

PERMIS de

SEBIKHOTAN

E

Légende :

Champ pétrolier

Gazoduc Gadiaga - Kabor (=4”)

Gazoduc Kabor – Cap des Biches (=6”)

Gazoduc Diam Niadio – Kabor (=3”)

Lac Retba

By R.Diallo Gunning

Chief Geological Basin

Petrosen


SENEGAL

AREA : 196 192 KM2

POPULATION : ~12 000 000 pers

DENSITY: 51 h / Km2

GNP : $ 1110

Dakar


REGIONAL SETTING

The Senegal Basin occupies the central

part of NW African coastal basin called the

MSGBC (Mauritania-Senegal-Guinea-Bissau

and Conakry Basin)

230 000 km² (90.000 Km² are offshore)

Mesozoic-Cenozoic Passive margin

Basin

overlying a Paleozoic basin

Two first wells drilled in deep

water on 2014

EXPLORATION HISTORY

150 Exploration Wells (1 well per

1533 km²)


LITHOSTRATIGRAPHIC COLUMN OF

SENEGAL BASIN

Post-rift stage

Mid Jurassic-Actual

Syn-rift stage

Permian- Triassic- Early Jurassic

Pre-rift stage

Upper Proterozoic-Paleozoic

Archeen basement


Ordovician sandstones : no primary porosity,

but very fractured, good secondary porosities having

excellent deliverability

Devonian sandstones : fine to coarse

grained, often oolithic with porosities ~ 15% - 20%.

Upper Devonian shales

Upper Tertiary shaly sequences

Lower Tertiary clastics and carbonates

Upper Cretaceous sands and shale sequences

Early Cretaceous sands and shale sequences

Jurassic –Early Cretaceous carbonate platform

fine grained fluvial clastic graben fill and

evaporitic beds

RESERVOIRS & SEALS


Best source rocks

Cenomanian-Turonian

and secondary Albians

• in CM-7

Cenomanian level at 2608m with

TOC = 8.72 %

HI = 660 mg/g

• in CM-10

Turonian level at 2554 m with

TOC = 5.25 %

HI = 638 mg/g

Mesozoic-Cenozoic section

Well samples analysis


Silurian shales :

best regional source rocksTOC ~ 1% - 3%

Ro ~ 0.95 - 1.3

Oil windows should occur

between 1850/2400 m to 3400/4000

m

Paleozoic section


HYDROCARBON OCCURRENCES & PRODUCTION

Diamniadio field

Gadiaga field

Dome Flore & Gea

Sangomar Offshore Deep New

field discovered in 2014Sangomar Deep Field


Flore & Gea fields

Sangomar Deep Field

Dome Flore and Gea field

Light Oil in Maastrichtian sandstone

Heavy Oil in Oligocene limestone

10-13° API (reserve estimated ~500 M

to 1 Bbl)

Oil shows in Miocene and Albian

sandstone


F GP

Top

Neocomian

Lmst

CR

ET

AC

EO

US

TE

RT

IAR

YPLIO-RECENT

MIOCENE

OLIGOCENE

EOCENE

PALEOCENE

CAMPANIAN

MAASTRICHT.

SANTONIAN

TURONIAN

CENOMANIAN

ALBIAN

APTIAN

JUR

A

NEOCOMIAN

MALM

DOGGER

3D SEISMIC

PICKING

K 130

K 110

K 110 a

K 100

K 120

K 090

K 070

T 090

T 060

T 080

T 040

T 030

T 020

MIXED SYSTEMS

DELTAIC VS CARBONATE

PLATFORM

OPEN MARINE

CARBONATES

Aptian transgression

PROGR. CARB. PLATFORM

DELTAIC AND SHALLOW

MARINE CLASTICS

SLOPE DEPOSITS AND

CONFINED TURBIDITES

SLOPE DEPOSITS AND

CONFINED TURBIDITES

SHALLOW TO OPEN

MARINE

CARBONATES

Turonian transgressionSenonian

unc.

Lower

Miocene

unc.

Oligocene unc.

Upper

Miocene

unc.

Da

ka

r C

an

yo

n

TESTED

RESERVOIR

FIELD

(or Reference Well)

CHINGUETTI, THIOF, BANDA

PELICAN

DOME FLORE, DOME GEA

DIAM NADIO

GADIAGA

DKM 2, RF 2

FAUCON ? - FAN-1-SNE-1-TORTUE-1

JAMMAH 1 – FAN-1- SNE-1

DKM 2

RF 3 – FAN-1- SNE-1

SOURCE

VG

Ref.

Well

DSDP

367

CM 10

FAUC.

???

Oil

Condensate

Gas

EDISON 2008 Updated


THIES

BargnyRufisque

DAKARCentrale du

Cap des Biches

Station deKabor

Diam Niadio Est

Gadiaga-2

Wy-1

PERMIS de THIES

PERMIS de

SEBIKHOTAN

E

Légende :

Champ pétrolier




Lac Retba

PRODUCING FIELDS

GADIAGA – SADIARATOU Gas field

~ 274013500.6 Nm3 (10 BCF)

Producing gas and condensate since

2002

Oil shows

DIAMNIADIO Oil and Gas field

217 393033 Nm3 (7.6 BCF) from 1987 to

2000

62642 bbl light Oil 34° API in the 1980

35 692 bbl condensate

12AAPG 2015 DENVER CO12

GAS NETWORK TRANSPORT

THIES

BargnyRufisque

DAKARCentrale du

Cap des Biches

Station deKabor

Diam Niadio Est

Gadiaga-2

Wy-1

PERMIS de THIES

PERMIS de

SEBIKHOTAN

E

Légende :

Champ pétrolier




Lac Retba

Gadiaga field

Kabor storage and epuration station

Gas Turbine at Cap des Biches

- 34 km

- - 10 km

- - 9 km

Cement plant

Gazoduc Kabor – SOCOCIM (3’’1/4) 6 km


SCHEMATIC PLAY CONCEPT IN DEEP-WATER SENEGAL MARGIN


Licenses

8 offshore PSC

5 onshore PSC

11 Companies

4 blocks under

negotiation

1 open offshore block

3 open onshore block

CONTRACT AREAS


REVIEW OF RECENT EXPLORATION ACTIVITIES


SEBIKHOTANE

OPEN BLOC

Produced Oil, Gas and Condensate in

Diamniadio and Kabor fields from 1986 to 2000

Shallow reservoir in Maastrichtian

sandstone

Play Types: Roll Over, Rover Anticline

Potential in Deeper targets (Albian) non

explore yet

Main structural elements in the Area


Two Gas producing fields (Gadiaga and

Sadiaratou)

Production 100 000 Nm3/d

Hydrocarbon potential in the deep

carbonate platform

A 2D seismic survey in 2015 planned

New Development and Exploration wells

planned

August 2014

DIENDER


OPEN BLOC

Good seismic coverage (most recent 1200 km 2D

2004, 620 km2 in 2008)

Several leads and prospects identified (Ibis,

Flamingo, Fish Eagle, Vulture)

SAINT LOUIS OFFSHORE

CAYAR OFFSHORE

Petroleum Ltd

1363 km2 3D seismic in

2012

Several leads and

prospects identified

Play types: Shelf play, Slope

channel play, Base slope channel

plays, Counter Regional Fault Plays


SAINT LOUIS and CAYAR OFFSHORE DEEP

4686 km2 3D seismic in St Louis Off. Deep in 2014

2793 km2 3D seismic in Cayar Off. Deep in 2014

high frequency aeromagnetic and satellite seep data

Play types: Cretaceous Slope/ channel, Turbidites wedges

Several leads and prospects identified

A well planned in 2015

Tortue-1 Exploration well is a significant Gas

discovery in Mauritania made by KOSMOS

with 107m (351 feet) of Net Pay in Lower

Cenomanian objective

Has open the outboard petroleum system in

Mauritania and in Northern Senegal

Tortue-1 drilled at 2700m water depth to test the

Tortue West prospect, it forms part of the Greater

Tortue Complex which extends into the St. Louis

Offshore Profond Block in Senegal, and include

the Tortue East and Tortue North prospects

60% 30% 10 %


RUFISQUE OFFSHORE DEEP

26 Miles26 Miles

AFRICAN PETROLEUM Corp. (operator)

2088 km 2D & 1500 Km2 3D seismic

along with Gravity and Magnetic data

Play types: Tertiary slope channels,

Cretaceous turbidites wedges, and slope/

channels...

Many leads and prospects identified

Reprocessing and evaluation actually


Three blocks granted to HUNT Oil 2004 cover

7490 km2 currently

FAR farm in 2006

2050 km 3D seismic in 2007

Play types: Cretaceous Carbonate shelf Margin, Slope fan...

Several leads and prospects identified

2007 FAR started promotion campaign looking for partners in drilling: Does Senegal Waters Conceal Elephants?2008 HUNT Oil farm out SHELL shut a seabed logging in 2009

AAPG in 2010: FAR – PETROSEN technical presentations got CONOCO PHILIPS contact CAIRN farm in 2013 followed by CONOCO PHILIPS

RUFISQUE OFFSHORE-SANGOMAR OFF. & SANGOMAR OFF. DEEP

Cairn 2014

40 % 10 %35 % 15 %


located in 1,427m water depth and aprox. 100 km to

coast line

TD of 4,927 m and was targeting multiple stacked

deepwater fans

Preliminary analysis indicates:

29m of net oil bearing

reservoir in Cretaceous sandstones

Gross oil interval of more than 500m

No water contact was encountered in

Distinct oils types ranging from 28° API up to 41° API

from oil samples recovered to surface

Initial gross STOIIP estimates for the FAN-1 well range

from 250 mmbbls to more than 2,500 mmbbls (broadly in

line with pre-drill STOIIP estimates

Two Wells Drilled in 2014

in Sangomar Offshore Deep

FAN-1 is the first Oil discovery in Deep Offshore Senegal

FAN-1

Well


SNE-1 WELL

located in 1,100 m (3,609 ft) water depth about 100 km (62 miles)

targeting Cretaceous clastics objective in the Shelf Edge Prospect.

Hydrocarbons of similar age to oil-bearing sands found about 24 km

(15 miles) away in FAN-1

Initial analysis of the SNE-1 well indicates:

a 95-m (312-ft) gross oil-bearing column with a gas cap;

excellent reservoir sands

net oil pay of 36 m (118 ft) of 32˚API from samples of gas, oil and water

recovered to surface.

Hydrocarbon in the The deeper target of

Lower Cretaceous shelf carbonates

Current activities evaluation FAN-1 & SNE-1are continuing

Three wells planned

SNE-1 is the second Oil discovery in Deep Offshore Senegal


SENEGAL OFFSHORE SOUTH & SENEGAL OFF.SOUTH DEEP

is operated by HELENITO Senegal LLC

About 10 000km of 2D from1973 to 2001

8 wells

7 Salt Dome sub parallel to the coastline

along a narrow trend approximately 400 km

long and 30 km wide

Many leads and prospects identified

Tender for 3D survey currently

AFRICAN PETROLEUM

Corp.

3600 km2 3D in 2012

Interpretation finalized

Play concept: same than in deep

water Senegal

Many leads identified

2

4

Neocomian

Aptian

Albian

Jurassique

Triassic - Early Jurassic

Early

Senonian

Maastrichtian

Post-

Paleocene

Basement

1

2

4

3

5

6

7

8

0

km

(1) Salt Flank

Play

(2) Shelf Edge

Play

(3) Carbonate

Shelf Margin

(4) Shelf Edge

Onlap Wedge

(

1

)

1(

2

)

W E

(

4

)

0

10

km

-Paleocene

Campanian

(

3

)

CenomanianTuroni

an

Dept

h

SENEGAL OFFSHORE SOUTH DEEP

SENEGAL OFFSHORE SOUTH


DJIFFERE OFFSHORE

TRACE Oil and Gas (REX Atlantic)

operator

3700 km2 3D seismic acquired in 2014

Interpretation currently


Intracratonic basins

PALEOZOIC BASIN

Prospective area: East Meridian

16°

Acreage ~ 60000 km2

Two sub-basins East of Meridian

15°

Covers 4 blocs:

- Louga bloc

- Diourbel

- Saloum

- Senegal Onshore South


PALEOZOIC BASIN

compressional system in the rest of the

Senegal basin

Extensional system in Senegal onshore South

Many leads identified


LOUGA DIOURBEL

T5 OIL AND GAS

(BLACKSTAIR)

Gavity & Magnetic

survey

TENDER

Casamance Oil &

Gas

ONSHORE PERMITS

SALOUM SENEGAL ONSHORE SOUTH

A-Z PETROLEUM

Reprocessing & G&G study for all licences


2 basins L1 et L2 have been identified

Gravimetric and Geochemical projects

Ta-2

Db-1

NiF-1

KrF-1

DiF-1

Basin

Basin

Basin

Basin

L5

190 km

H1

H2

H3

H4

H5

L1

L2

L6

L3

L4

Landsat 7 ETM+

ERS SAR

SENEGAL EAST AREA


PETROLEUM LEGISLATION

LEGAL AND FISCAL TERMS


PRODUCTION SHARING CONTRACT (PSC)

EXPLORATION PERIOD

- Initial Period: 1-3 years

- Renewal Periods: 2-3 years

EXPLOITATION PERIOD

- Initial Period: 25 years

- Extension Periods: 10+10 years

LAW N° 98-05 of January 1998 (PETROLEUM CODE)


to be negotiated

RETENTION PERIOD

If a Discovery is certified non commercial, Contractor may be

granted a Retention Period of maximum:

3 years for crude oil

5 years for natural gas


Exploration phases: Carried Interest of 10 %

After Commercial discovery: Working Interest up to 30 %

Thirty per cent (30%) Income Tax

( applied on net profit )

FISCAL REGIME


Senegal Basin has generated oil and gas

Diamniadio, Gadiaga and Casamance Dôme Flore

Presence of world class source rocks in Turonian –

Cenomanian secondary good sources in Albian-Aptian and

Jurassic

60 000 km2 underexplored Paleozoic basin

with good reservoirs in Ordovician and Devonian

and good source in Silurian, and traps and plays

identified

The Oil and Gas discoveries in FAN-1 and SNE-1 are an

important event for Senegal and the partners

Proven Petroleum system in Deep water

Combination with Tortue-1 Gas discovery in Deep Off.

Mauritania it Upgrades the prospectivity of all the offshore

Senegal Basin blocks and MSGBC

Law with flexible terms

CONCLUSION


THANK YOU

YES IT DO

POTENTIAL & ACREAGE Centrale du Cap des Biches Bargny ... Talks 2015/Denver 2015 Senegal.pdf · AAPG 2015 DENVER CO 1 SENEGAL BASINS POTENTIAL & ACREAGE THIES Bargny Rufisque DAKAR

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