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8/3/2019 Materi Dart ENERGI1
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ECONOMY SCALE OF COAL BED
METHANE (CBM) DEVELOPMENT
Unggul Setyatmoko
Country Manager Dart Energy Indonesia
Palembang, 6 July 2011
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What is Coal Bed Methane (CBM)?
Coal Bed Methane Conventional Gas
Methane 94-98%
Traces of: carbon dioxide
ethane
nitrogen
Methane 70-90%
ethane propane
butane
pentane trace
carbon dioxide 0-8%
nitrogen 0-5%
hydrogen sulfide 0-5%
Typical calorific
value of1,040BTU/scf
Typical calorific
value of1,005BTU/scf
Heating Value can be spiked
via LPG or blending
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Methane gas adsorbed into coal seamsthat can hold 5 times as much gas as anequivalent volume of sandstone
Gas held in coals by hydrostatic waterpressure
By drawing down hydrostatic pressure(dewater) gas diffuses from the micropores into cleats and fractures.
As water flow rates go down gas
production initially increases.
Result is high volumes of upfront water,slowly building gas production and longertimes to payback
CBM and Water Production
0
20
40
60
80
100
120
140
160
180
200
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Years of Operation
MCFofCBM
/Day
0
1
2
3
4
5
6
7
8
9
10
GallonsofWater/Minute
CBM
Water
CBM Production Mechanism
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Sandstone(Oil and Gas)
Coal(CBM)
ProducingR
ate
Producing Time
Pressure
ProducingR
ate
Producing Time
Pressure
Gas free in pore space
Porespace
Sand grain
Gas adsorbed in matrix
Buttcleat
Facecleat
In Comparison with Conventional Gas
Water
Gas
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Indonesias has the 5th largest potential CBM resources in the world.
CBM Industry is only developed in North America and Australia to date..
US 700 Tcf China 1,300 Tcf
India 300 Tcf
Indonesia 450 Tcf
Australia 350 Tcf
Canada 600 2,700 Tcf UK 70 Tcf
Ukraine 70 Tcf
Poland 100 Tcf
Germany 100 Tcf
South Africa 70 Tcf
Russia 600 4,000 Tcf
Source: Tri-Zen presentation to CSG 2010, Brisbane Conference March 2010
World CBM Potential
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CBM Resources in Indonesia
Indonesias potential CBM resources : 453 TCF
32 CBM Blocks have been awarded by Government to date
Source: MIGAS
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In Comparison with Conventional Gas
1.27
3.18
8.15
4.16
52.59
24.96
24.21
NATUNA
5.72
NORTH SUMATRA
13.65
28.00
CENTRAL SUMATRA
ACEH (NAD)
SOUTH SUMATRA
WEST JAVA
5.08
EAST JAVA
EAST BORNEO
CELEBES
MOLUCCAS
PAPUA
(Advance Resources Interational, Inc., 2003 processed)
Conventional Gas Reserves : 170 TCF (112 Proven + 58 Potential)
CBM Resources : 453 TCF..
Source: MIGAS
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Indonesia Suppy & Demand Overview
Shortage by450 MMSCFD in 20163300 MMSCFD in 2025
(Existing & FutureSupplies from SS
Accounted)
Limited DomesticDemand Large Supply
Sources for Java
Domestic Supply Shortage:50 MMSCFD in 2011
200 MMSCFD in 2025
Domestic Supply Shortage:
75 MMSCFD in 2011 - 2014
Domestic SupplyShortage in 2016 in
Order to Fulfill ExportCommitment
Supply Shortage:100 MMSCFD Now
350 MMSCFD in 2025
EXPORT
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Longer & Experimental Appraisal Program
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Ramp-up Risk & Length
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Number of Wells
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CBM Economics
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CBM : Margin Business - Manufacturing
Development Parameters
Luas (Km2) 1000
Luas Sweet Spot (Km2) 350
OGIP (BCF) 900
Maximum Jumlah Sumur (120 Acres) 480
Produksi (BCF) 265
Harga Gas ($/MMBTU + 2% eskalasi) 6
Capex (Juta $) 517
Opex (Juta $) 424
Total Investasi (Juta $) 941
NORMAL DEVELOPMENT SCHEDULE
IRR Kontraktor (%) 10.7
NPV Kontraktor (Juta $) 8.5Gov Take (Juta $) 561
ACCELERATED DEVELOPMENT
IRR Kontraktor (%) 15.2
NPV Kontraktor (Juta $) 50.4Gov Take (Juta $) 618
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Fast, Low Cost, Low Risk Exploration
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CBM Rig
This Not This
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Logging Unit
This Not This
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Drilling Cost Comparison
Description Indonesia(USD)
India(USD)
China(USD)
Australia(USD)
Core Well 600,000 280,000 320,000 350,000
Exploratory Wells 800,000 350,000 500,000 650,000
Production Wells 900,000 600,000 650,000 750,000
Land &
Construction/m2
26.5 - 30 27 - 30 3.5 - 35 18 - 28
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CBM Polycarbonate Pipeline
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Ability to Commercialize Small Volume
Innovation in Early Pilot and Development Options
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No Technology Magic Bullet
Three Basins Three Reservoirs Three Techniques
Each coal bed is different and requires different completions
and reservoir management techniques
Source: IndoCBM Conference
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Contribution to Environmental Agenda
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CBM & Coal Mining Cooperation
CBM will normally overlap with coal exploration and coal production
tenures everywhere. Therefore, CBM company relationship with coal
companies is critical.
CBM companies work together with coal mining companies by
generating CBM development plan which takes into account coal
mining long term planning to maximise the value proposition for both
parties.
Produced CBM can be commercially negotiated with the coal mining
company for its usage (power, CNG vehicles, etc.)
There are a lot more cooperation with underground coal mining
which benefit both parties.
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Dart Energy Indonesia
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They Say..
the majority of successes in the CBM business have been at the hands of
focused, energetic, low cost independents. Dart Energy is already establishing
itself as a clear leader in that field.
(Nick Davies, Chairman - Dart Energy Limited)
dari pengalaman bertahun-tahun di dalam industri migas, pemboran
sumur migas yang sangat kompleks selalu dapat diatasi melalui aplikasi
teknologi. Akan tetapi, pemboran sumur CBM di Indonesia sangat
sulit..karena dituntut untuk dikerjakan dengan biaya rendah untuk menjaga
keekonomian proyek CBM.
(Pudjo Suwarno, Direktur Medco CBM)
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Terima Kasih