Indonesia: Tangguh Liquefied Natural Gas Project - Extended ...
bp A Brief Description of Tangguh Giant Gas Fields ...
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A Brief Description of
Tangguh Giant Gas Fields,
Bintuni Basin, Papua – Indonesia
BP Indonesia
Meizarwin
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Outline
• Regional Geology
• Exploration History
• Play and Petroleum System
• Reservoir Description
• Future Exploration Potential
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bpBird Head Regional Geology
Syafron et al, 2008
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EXPLORATION PHASE 1
Tertiary Reef Objective Phase
EXPLORATION PHASE 2
Pre-Tertiary Objective Phase
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KASIM
SELE
TERTIARY REEF OBJECTIVE PHASE
1935 – NNGPM (Shell) start exploration
1936 – first discovery (60 mmbo)
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1939-1942 drilled 25 wells Two discoveries Produced 1951-1961, 7 mmbo, 43API
1977-1986 Total & Conoco drilled 28 wells One discovery in 1981, 3 mmbo Wiriagar
1973 – Trend discovered Kasim field >350 mmbo
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SOUTHERN BIRD’S HEAD
PRE-TERTIARY
GAS DISCOVERIES-1
1971 (Phillips) TBE-1X & 1981 Kalitami Good Jurassic reservoir, wet
1987 (Total) Sebyar-1 : Jurassic reservoir absent First gas shows in Paleocene, K, Permian
1981-1992 10 wells drilled in Bintuni Bay 3 discoveries by Oxy : Roabiba, Ofaweri, Wos
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. .
SOUTHERN BIRD’S HEAD
PRE-TERTIARY
GAS DISCOVERIES-2
1998 D&M certified 14.4 TCFG
1994/5 East Onin-1
1994 Wiriagar Deep-1 discovery Jurassic and Paleocene reservoir
1995 Farm in to Berau Takeover operatorship Drill WD-2 appraisal
1996/7 Vorwata & Ubadari discoveries
1996 BG discovered Mogoi Deep –1
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A B
Vorwata Field
A Giant Middle Jurassic Play
Berau Sekak Ridge Bintuni A B
50 km
(31 miles)
Vorwata
Wiriagar
- S E K A K R I D G E -
A B
Type of basin: Complex structural evolution.
Jurassic extension and erosion/truncation during
peripheral bulge at the rift shoulder.
Hydrocarbon habitat: Coupled petroleum system
between reservoir and source rock.
Type of data: 2D seismic data only by 1990’s,
Roabiba Field four-way-closure first pre-Tertiary
discovery in Indonesia.
Basis for discovery: Vorwata structure drilled in a
high (V1) expecting an analogue to Roabiba Field
…. But found a complex structural-stratigraphic
trap.
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bpBerau-Bintuni Bay Area
Petroleum System Summary
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Vorwata Conceptual Geologic N-S Cross Section
Schematic Geology Cross-Section
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bpOverlay of Vorwata Closure on Top of
Bandung Map
Lembang
Bandung
Jatinangor
Cimahi
Padalarang
Baleendah
Soreang
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bpVorwata Field
Middle Jurassic NW – SE Well Correlation
0
500 ft
Log Type
Modified after Marcou et al, 2004
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bpWiriagar Deep Field
Paleocene NW – SE Well Correlation
0
500 ft
Modified after Marcou et al, 2004
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• Jurassic Marginal Marine Depositional System within an
overall transgressive sequence
Middle Jurassic “Roabiba” Sand
Good porosity and permeability
One Pressure Compartment Per Structure
• Paleocene Submarine Fan Complex
Southward prograding turbidite deposition
Good porosity
Permeability highly variable
Jurassic
0.001
0.01
0.1
1
10
100
1000
10000
0 5 10 15 20 25
0.001
0.01
0.1
1
10
100
1000
10000
0 5 10 15 20 25
Paleocene
Core Porosity & Permeability
Marcou et al, 2004
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. .
SOUTHERN BIRD’S HEAD
POST TANGGUH PRE-TERTIARY
GAS DISCOVERY
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Asap Discovery
(2010)
Post Tangguh Gas Discovery
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18
… What next?
Waterbottom Map
Abadi
Tangguh
NWS
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Mesozoic and Paleozoic wells distribution
Modified after Wilson and Moss, 1999
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Summary (1)
• Pre 1990 :
• No Pre-Tertiary Discoveries
• 13 wells penetrated Pre-Tertiary
• Today :
• Tangguh is Indonesia’s Major Gas Discoveries
• First Gas June 2009
• More than 1 TCF gas have been produced
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Summary (2)
• Post Tangguh Discoveries
• Abadi and Asap gas discoveries
• Few additional Pre-Tertiary penetrations in
Southern Bird’s Head are unsuccessful
• Future :
• The Papua area is still relatively under explore
• Potential exploration opportunity in deep water
• Stratigraphic play is part of potential high risk
high reward play
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TERIMA KASIH