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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
2AAPG 2015 DENVER CO
SENEGAL
AREA : 196 192 KM2
POPULATION : ~12 000 000 pers
DENSITY: 51 h / Km2
GNP : $ 1110
Dakar
3AAPG 2015 DENVER CO
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)
4AAPG 2015 DENVER CO
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
5AAPG 2015 DENVER CO
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
6AAPG 2015 DENVER CO
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
7AAPG 2015 DENVER CO
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
8AAPG 2015 DENVER CO
HYDROCARBON OCCURRENCES & PRODUCTION
Diamniadio field
Gadiaga field
Dome Flore & Gea
Sangomar Offshore Deep New
field discovered in 2014Sangomar Deep Field
9AAPG 2015 DENVER CO
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
10AAPG 2015 DENVER CO
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
11AAPG 2015 DENVER CO
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
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
Gazoduc Gadiaga - Kabor (=4”)
Gazoduc Kabor – Cap des Biches (=6”)
Gazoduc Diam Niadio – Kabor (=3”)
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
13AAPG 2015 DENVER CO
SCHEMATIC PLAY CONCEPT IN DEEP-WATER SENEGAL MARGIN
14AAPG 2015 DENVER CO
Licenses
8 offshore PSC
5 onshore PSC
11 Companies
4 blocks under
negotiation
1 open offshore block
3 open onshore block
CONTRACT AREAS
15AAPG 2015 DENVER CO
REVIEW OF RECENT EXPLORATION ACTIVITIES
16AAPG 2015 DENVER CO
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
17AAPG 2015 DENVER CO
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
18AAPG 2015 DENVER CO
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
19AAPG 2015 DENVER CO
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 %
20AAPG 2015 DENVER CO
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
21AAPG 2015 DENVER CO
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 %
22AAPG 2015 DENVER CO
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
23AAPG 2015 DENVER CO
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
24AAPG 2015 DENVER CO
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
25AAPG 2015 DENVER CO
DJIFFERE OFFSHORE
TRACE Oil and Gas (REX Atlantic)
operator
3700 km2 3D seismic acquired in 2014
Interpretation currently
26AAPG 2015 DENVER CO
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
27AAPG 2015 DENVER CO
PALEOZOIC BASIN
compressional system in the rest of the
Senegal basin
Extensional system in Senegal onshore South
Many leads identified
28AAPG 2015 DENVER CO
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
29AAPG 2015 DENVER CO
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
30AAPG 2015 DENVER CO
PETROLEUM LEGISLATION
LEGAL AND FISCAL TERMS
31AAPG 2015 DENVER CO
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)
32AAPG 2015 DENVER CO
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
33AAPG 2015 DENVER CO
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
34AAPG 2015 DENVER CO
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
35AAPG 2015 DENVER CO
THANK YOU
YES IT DO