equatorial guinea for download/kuala_lumpur_03... · 2014-11-13 · equatorial guinea exploration...
TRANSCRIPT
EQUATORIAL GUINEA
EXPLORATION STATUS
Alan Soulsby,Director, ECL and Advisor to Ministry of Mines,
Industry & Energy
Kuala Lumpur, March 2005
Alba Relicensed
Alba Discovery
0
2
4
6
8
10
12
14
196719
68196
919
70197
119
72197
3197
419
75197
619
77197
819
7919
80198
119
82198319
84198
519
8619
87198
819
89199019
91199
2199319
94199
5199
6199719
98199
9200020
01200
2200
3200420
05
0
10
20
30
40
50
60
70
80
90
100
EXPLORATION DRILLING HISTORYEXPLORATION DRILLING HISTORY
0
2
4
6
8
10
12
14
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
Years
Per
Yea
r
0
10
20
30
40
50
60
70
80
90
100
Cm
ula
tive
Zafiro
Ceiba
1,000m water
2,000m water
WELLS DRILLEDWELLS DRILLED
1992-99……..Exploration on Zafiro trend to the 1,000m isobath (33 wells).Ceiba Field discovered 1999.
1999-2004……Exploration extended westwards along the Niger Delta Deformation Front (3 wells) beyond 2,000m isobath and around Alba (10 wells) but mostly along and inboard of the Ceiba Trend (31 wells)
200m water
TO 1992…….Drilling from 1967 within the 200m isobathfound the Alba condensate discovery which was deemed non-commercial.
13 wells in Niger Delta6 wells in Rio Muni
Ocean FractureZones
Regional Regional Structural Structural & Basin & Basin FrameworkFramework
PETROLEUM SYSTEMSPETROLEUM SYSTEMS
SOURCE SOURCE QUALITYQUALITY
0 100 200 300 400 500 600 700 800 900 1000
HI (mg/gTOC)
400
410
420
430
440
450
460
470
480
490
500
T-m
ax (°
C)
Type III (gas-prone)Type II (oil-prone)
Type I (oil-prone)(Algal-Lacustrine)
Algal-Bacterial Marine)(Humic coals and shales) (Exinitic Land Plant, or
TOC by s ize
0.0 - 1.0
1.0 - 2.0
2.0 - 4.0
4.0 - 6.0
6.0 - 8.0
8.0 - 10.0
10.0 - 12.0
12.0 - 35.0
35.0 - 99.0
No dataNote: Lines based on Transformation Ratios from LLNL Kinetics, but data plot outside envelopes
TERTIARY
OIL & GAS PRONE SOURCE (NIGER
DELTA)
LATE CRETACEOUS
OIL PRONE SOURCE
Late Tertiary PlayLate Tertiary PlayOligo-Miocene source mature towards and under Niger Delta thrust front
Miocene fan and channel sands provide excellent reservoirs, derived from north-east
Pliocene canyon systems sourced from north and north-west
Around 2.5 billion boe discovered
2
4
6
PLIOCENECHANNELS
NIGER DELTAFRONT
ALBA
BASETERTIARY
MID MIOCENE CHANNEL
Data courtesy of GESeis and Atlas Petroleum
Cretaceous PlayCretaceous Play
Apto-Turonian source mature in basinalareas
Albo Aptian source mature in marginal areas
Campanian fan and channel sounds provide excellent reservoirs
Exploration to date only in upper channel systems – PROVEN OIL~ 500mmbbls
Lower channel and fan systems – HUGE POTENTIAL
5
2
BASETERT
BASECRET
CAMPANIAN CHANNEL
Early Tertiary PlayEarly Tertiary Play
Proven play in Cameroon (Coco Marine)
Late Eocene fan and channel sounds well imaged seismically
Apto-Turonian source mature in basinalareas
Deepwater play, untested in EG
OLIGO-MIOCENE FAN?
Data courtesy of GESeis and Atlas Petroleum
3D3DSEISMIC COVERAGESEISMIC COVERAGE
All areas coloured RED now covered by 3D seismic, around 20,000sq. kms..
The State acquires 3D seismic on unlicensed areas through GESeis,its JV seismic contractor.
GESeis promoting SBL surveys in deep water areas to reduce exploration risk.
Blocks EBlocks E--8/E8/E--9/F9/F--8/F8/F--9 Equatorial Guinea9 Equatorial Guinea
Prospect EProspect B Prospect A
Prospect C
Prospect D
NE
SW NW
SE
H3
H4
A
A’
Seismic line down Channel Feature
Characteristic down-cutting characterwith discontinuous high-amplitude
events
BLOCKS EBLOCKS E--8/E8/E--9/F9/F--8/F8/F--9 9 (Former Block E)(Former Block E)
DATA PACKAGEDATA PACKAGE
• Good quality recent vintage 3D seismic data
• SBL data suggests hydrocarbon bearing prospects
• Prospects ready to drill
• Time to first oil reduced
• Large element of work commitment covered
• Licence fee cost recoverable under PSC
2005 RELINQUISHMENTS2005 RELINQUISHMENTS
DATA AVAILABLEDATA AVAILABLE
• Historical seismic, various vintages
• Well data packages
• Basin studies and evaluation reports:
• 2005 Equatorial Guinea Seismic Mapping & Play Fairway
mapping project
• 2001 Rio Muni Basin Study
• 1998 Rio Muni Petroleum Potential
Exploration IssuesExploration Issues……………………
• Immature exploration province• Large sediment volume • Proven & mature source rocks – large volumes
generated – low source risk• Excellent channel and fan sands - low reservoir
risk• Many stratigraphic trap opportunities, some
structural• Large unlicensed area, extensive database
………….LARGE REMAINING POTENTIAL