Mutiara Putih-1

Transcription

Mutiara Putih-1

Indonesia – New Ventures
Exploration of the Arafura Basin
Indonesia
Authors:
Joko S. Miharwatiman, Ludy Andria, Derik W. Kleibacker, Jon Elliot, Jesse A. Baker
April 2013
Presentation Outline
 Introduction
 Operation Overview
 Regional Interpretation
- Well and Seismic Database
- Well-Seismic Correlation and Interpretation
 Well Results
- Aru-1
- Mutiara Putih-1
 Pre and Post Drill Stratigraphy
 Conclusions
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Introduction – Background
 ConocoPhillips explored idea that there was the
potential for a Paleozoic petroleum system within the
Arafura basin in Indonesia.
- Regional interpretation of the area, incorporating
information from outcrop, seismic and well data
obtained from both Irian Jaya and Australia
- Recent seismic suggested that an Upper Proterozoic to
Paleozoic basin was present

Reprocessing of old seismic and additional recent seismic
surveys revealed the exploration potential of the basin.
- A number of very large Paleozoic prospects were
identified within the Arafura basin, Indonesia
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Introduction – Location map
South China Sea
Pacific Ocean
South Natuna Sea
Block B
South Jambi
Corridor
Papua
I n d o n e s i a
Banda Sea
Jakarta
Indian Ocean
Arafura
Arafura
Australia
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Introduction – Location map
South China Sea
Pacific Ocean
South Natuna Sea
Block B
South Jambi
Corridor
Papua
I n d o n e s i a
Jakarta
Banda Sea
Indian Ocean
Arafura
Arafura
Australia
Amborip VI
Aru-1
B
Arafura Sea
Arafura Basin
MP-1
NTP74
NTP75
Goulburn Graben/
Money Shoal Basin
Wessel Islands
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 Introduction
 Well Results
- Aru-1
- Mutiara Putih-1
 Conclusions
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Key Supporting Locations
MALAYSIA
PACIFIC OCEAN
SARAWAK
Celebes Sea
Natuna Sea
AMBORIP VI PSC
KALIMANTAN
SULAWESI
SUMATRA
• Aru-1 (Amborip VI PSC)
Spud: November 13th, 2010
TD: 4873’ MD (January 2nd, 2011)
Status: P&A
PAPUA
Java Sea
Banda Sea
JAVA
Arafura Sea
TIMOR LESTE
ARAFURA SEA PSC
AUSTRALIA
• Mutiara Putih-1 (Arafura Sea PSC)
Spud: January 27th, 2011
TD: 10505’ MD (May 15th, 2011)
Status: P&A
•Timika (West Papua): Location of airport
for commercial flights and medical
facilities
•Kaimana (± 400 km west of Timika):
Location
of
Emergency
Response
Helicopter
•Dobo (Aru Islands): Airfield helicopter refueling capability to support the helicopter
in any emergency response situation
•Tual (Kai Islands): Small shorebase facility
for the drilling operation
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1 NM (Nautical Mile) = 1.852 km
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Operation Summary
 The well operations were carried out safely without any
recordable injuries or accidents throughout the project

Successfully drilled and abandoned two exploration
wells

Challenges:
-
April, 2013
Remote Location +/- 3520 km (1900 NM) East of Jakarta
No existing infrastructure to support the operation area
Limited access to medical facilities (Freeport Clinic, Timika)
One available commercial airport (Timika Airport)
Frequent clashes amongst local communities and police
Weather Conditions
• Bad weather condition resulted in more than 2 months
delayed from jacking down the rig and tow to Singapore
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 Introduction
 Well Results
- Aru-1
- Mutiara Putih-1
 Conclusions
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Well and Seismic Database
Pacific Ocean
South Natuna Sea
Block B
South Jambi
Corridor
Kola-1
Papua
Jakarta
ASM-1
Banda Sea
0Base Cretaceous Uncf.
Permian
I n d o n e s i a
DEPTH (feet)
South China Sea
1500 -
Indian Ocean
Australia
Amborip VI PSC
3000 -
Devonian
Aru-1
4500 -
Arafura Sea PSC
6000 Ordovician - Cambrian
MP-1
7500 -
Kulka-1
Money Shoal-1 Torres-1
Tasman-1
Arafura-1
9000 -
Goulburn-1
•
s
M. Camb
11500 -
A total of 8 wells penetrated the Paleozoic section
There are 6 wells in Goulburn graben at the south (Australia) and 2 wells in the north (Indonesia)
•
Approximately 750km between northern and southen wells
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Well-Seismic Correlation
W
0-
E
Torres-1 (Esso-1983)
Arafura-1 (Petrofina, 1983)
Bs. Permo-Carb
Base Cret
Base Jurassic
Lw. Devonian
TWT (ms)
Top Ordo-Camb
Near Mid Cambr
2000 -
Kola-1
ASM-1
Aru-1
Amborip VI PSC
3000 -
Base U.Proter_Unc
Arafura Sea PSC
MP-1
5 km
Kulka-1
Tasman-1
•
Arafura-1
Goulburn-1
The petrophysical results of the wells were posted on seismic for comparison
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Seismic Correlation to Amborip VI
Goulburn Graben
Amborip VI
Torres-1
0-
500 -
1000 -
TWT (ms)
Base Permo Carb
Lw. Devonian
1500 -
Top Ordo-Camb
Near Mid Cambrian
2000 -
Kola-1
2500 -
ASM-1
Aru-1
Amborip VI PSC
3000 Arafura Sea PSC
MP-1
Kulka-1
Money Shoal-1
3500
-
Torres-1
Tasman-1
Arafura-1
Goulburn-1
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10 km
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Seismic Correlation to Arafura Sea
Goulburn Graben
Torres-1
Arafura Sea
0-
500 -
1000 -
TWT (ms)
Mid Permian ?
1500 -
Base Permo Carb
2000 -
Lw. Devonian
2500 Kola-1
Top Ordo-Camb
ASM-1
Aru-1
Amborip VI PSC
3000 -
Near Mid Cambrian
Arafura Sea PSC
MP-1
3500Kulka-1
-
Tasman-1
Arafura-1
Goulburn-1
April, 2013
10 km
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Seismic Interpretation
Base Upper Proterozoic Time Structure
(pre-drill interpretation)
Amborip VI
• Proterozoic
Intra-continental “rift” basin
extends from West Papua (north) to Goulburn
Graben (south), more than 700 km long
• Up to 4 seconds of fill (underlies Paleozoic
passive margin section)
0 -NW
Aru
SE
1-
Bs. Up. Proterozoic
TWT (sec)
2-
Arafura Sea
Mutiara Hitam
345-
6-
Indonesia
Mutiara Putih
Australia
20 km
7-
0-
NW
SE
1-
TWT (sec)
2-
100 km
4567-
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Bs. Up. Proterozoic
3-
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50 km
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Near Top Lower Devonian Time Structure
(pre-drill interpretation)
Aru
0 - NW
SE
Bs.Cretaceous Unconformity
Amborip VI
Aru
TWT (sec)
Mid. Devonian
1-
Lower
LowerDev.
Dev.
Nr.Top Permo-Carb
Top Ordo-Cambr.
Near Mid Cambr.
2-
5 km
3-
Arafura Sea
0 - NW
SE
Mutiara Putih
Mutiara Hitam
Mutiara Putih
Australia
TWT (sec)
Indonesia
1-
Top Permo-Carb
2Bs.Permo-Carb
Lower
LowerDev.
Dev.
3-
100 km
Top Ordo-Cambr.
5 km
Near Mid Cambr.
• Amborip VI: one very large structure (Aru prospect)
April,
2013
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• Arafura
Sea: two large structures (Mutiara
Putih and Mutiara Hitam prospects)
15
Top PermoCarb Depth Map
S
Mutiara Hitam
Mutiara Putih
N
0Sea Bed
Bs. Cret. Unc.
500 Permian?
1000 -
TWT (ms)
Top Permo-Carb
Base Permo-Carb
1500 -
Lower Dev.
2000 Top Ordo Camb.
2500 -
Near Base Mid. Cambrian
25 km
3000 -
Primary Target
3500 -
10 km
Upside Potential
•
•
•
Mutiara Putih will penetrate the youngest Paleozoic and M.Hitam will penetrate the deep section
There is a potential of ~1.5km additional Permian-Triassic section in Mutiara Putih compared to
Mutiara Hitam
Aru-1 (Amborip VI) and Mutiara Putih-1 (Arafura Sea) provide the most complete sample of the
Paleozoic stratigraphy in the Arafura basin, Eastern Indonesia
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 Introduction
 Well Results
- Aru-1
- Mutiara Putih-1
 Conclusions
April, 2013
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Aru-1 Well Results
Objectives:
prog actual
•
•
The well was drilled to test the Lower Paleozoic petroleum system, targeted the
Upper Devonian sandstones reservoir
Results were used to update the prognosis for the Mutiara Putih-1 well (~300 km
south)
Lithology below Base Mesozoic Unconformity:
•
•
•
The Upper Devonian (target reservoir interval) was missing
Lithology below Mesozoic are massive dolomite, dolomitic & quartz sandstones
and shales
Indications of suturing, grain interlocking and early metamorphism
Petrophysical analysis:
•
•
No reservoir quality, the average porosity is less than 1% with a maximum of 5%
Sandstones were tight because of cementation (dolomite and calcite) and
compaction
Biostratigraphy Age:
•
Late-Middle Ordovician
Interpretations:
TD was called early •
at 4873 (-4753) ft
•
PTD: 11500ft
April, 2013
The Aru structure had experienced 15,000 ft uplift and erosion, and the lower
Paleozoic petroleum system was long gone (pre-drill est.: 8,000 ft uplifted)
Ordovician and Mid Cambrian bright reflector packages were not penetrated, and
considered to be very tight and over-mature
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Mutiara Putih-1 Well Results
Ft SS
•
MP-1 spudded on Jan 27th, 2011. The well
penetrated 3294 ft of the primary objective
Permian clastics
•
Secondary Devonian target not present, the
Permian section lies on top of a very thick (at
least 4917 ft) Late Ordovician section
•
Permian Sandstones encountered had low
porosity and permeability
Ordovician Shale
•
Ordovician Limestones encountered had low
porosity and permeability
Ordovician Lower Sandstone
•
TD for the well was called at 10505 ft MD
Base Tertiary Unc.
Permian
Permian
KULSHILL Group
Permian Upper Sandstone
Permian Lower Sandstone
Permian/Ordovician Unc.
Ordovician Upper Sandstone
Late Ordovician
Ordovician Limestone
TD: 10505’
PTD: -15000’
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 Introduction
 Well Results
- Aru-1
- Mutiara Putih-1
 Conclusions
April, 2013
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Pre-drills Stratigraphic Correlation
(GOULBURN GRABEN)
(ARAFURA SEA PSC)
(AMBORIP VI PSC)
M. Putih
Aru
Arafura-1
SW
0-
ASM-1x
NE
Tertiary
Mesozoic
1000 -
TWT (ms.)
2000 -
Permo-Carb sst.
3000 4000 -
Permo-carb.
5000 -
Devonian sst.
Ordovician dol.
Mid-Cambrian clst.
Devonian
Ordovician
6000 7000 -
Cambrian - Proterozoic
PreCambrian
100 km
ASM-1
0-
TWT (ms.)
1000 2000 3000 4000 5000 6000 -
Arafura-1
7000 -
•
•
•
April, 2013
Aru and Mutiara Putih wells were drilled to test the full stratigraphic column and independent prospects in the
Lower and Upper Paleozoic intervals
Aru primary target  Devonian sst.
Mutiara Putih primary target  Permo-Carboniferous sst.
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Post Aru-1 Stratigraphic Correlation
(GOULBURN GRABEN)
(ARAFURA SEA PSC)
(AMBORIP VI PSC)
M. Putih
Aru
Arafura-1
SW
0-
ASM-1x
NE
Tertiary
Mesozoic
1000 -
TWT (ms.)
2000 -
Permo-Carb sst.
3000 4000 -
Permo-carb.
5000 -
Devonian sst.
Ordovician dol.
Mid-Cambrian clst.
Devonian
Ordovician
6000 7000 -
PreCambrian
100 km
ASM-1
0-
TWT (ms.)
1000 2000 3000 4000 5000 6000 -
Arafura-1
7000 -
•
•
•
April, 2013
Aru-1 encountered Ordovician Dolomite below the Mesozoic Unconformity, the Silurian-Devonian missing.
Mutiara Putih primary target  Permo-Carboniferous sst.
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Post MP-1 Stratigraphic Correlation
(GOULBURN GRABEN)
Arafura-1
SW
(ARAFURA SEA PSC)
M. Putih
(AMBORIP VI PSC)
Permian-Ordovician
Unconformity
ASM-1x
Aru
0-
NE
Tertiary
Mesozoic
1000 -
TWT (ms.)
2000 -
Permian sst.
3000 4000 5000 -
Devonian sst.
Ordovician dol.
Mid-Cambrian clst.
Permian
Late Ordovician
Late Ordovician
6000 7000 -
PreCambrian
100 km
ASM-1
0-
TWT (ms.)
1000 2000 3000 4000 5000 6000 -
Arafura-1
7000 -
•
•
•
April, 2013
Mutiara Putih-1 Upper Paleozoic contained Permian sediments of interbedded shale, sandstone and dolomite.
Mutiara Putih-1 Lower Paleozoic was dominated by a thick preserved section of Ordovician similar to the Aru-1.
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Arafura Sea Chronostratigraphic Chart
April, 2013
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 Introduction
 Well Results
- Aru-1
- Mutiara Putih-1
 Conclusions
April, 2013
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Conclusions
 The drilling campaign conducted in the Amborip-VI and Arafura Sea
Blocks resulted in the most complete sample of the Paleozoic
stratigraphy in the Arafura Basin
 Successfully encountered both Upper and Lower Paleozoic sediments
 Upper Paleozoic Permian section contained interbedded shale,
sandstones and dolomite with poor porosity and permeability
 Lower Paleozoic dominated by a thick section of Ordovician
sediments mainly consist of shale with some sandstones intervals and
dolomitic limestone with poor porosity and permeability
 Arafura Paleozoic basin fill had undergone deeper burial and more
severe uplift and erosion than had been estimated prior to drilling
 Understanding the burial history of Paleozoic (older) basins is critical
to the source and more importantly the “preservation” of reservoir
and the hydrocarbons
April, 2013
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Acknowledgements
Acknowledgements
We would like to thank to:

ConocoPhillips and partners (OPIC & TOTAL), as well as
MIGAS and SKKMIGAS for their generous permission to
publish this paper

CGG Veritas, PGS and Spectrum for their permission to
publish the seismic lines

All previous and current members of COPI New Ventures,
Chiefs and SST who worked on the projects
April, 2013
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Thank you
“The information contained herein is for presentation and
discussion purposes only. ConocoPhillips does not make any
representations or warranties regarding content accuracy.”

Mutiara Putih-1

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