1 PROPOSAL FOR JOINT COOPERATION BETWEEN NEDO - DGMCG/PTBA ON STUDY OF HIGH WALL AND UNDERGROUND POTENTIAL RESERVES IN AIR LAYA AND SURROUNDING BukitA...
PROPOSAL FOR JOINT COOPERATION BETWEEN NEDO - DGMCG/PTBA ON STUDY OF HIGH WALL AND UNDERGROUND POTENTIAL RESERVES IN AIR LAYA AND SURROUNDING
BukitAsam PT. TAMBANG BATUBARA BUKIT ASAM (Persero) Tbk. 2009
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CONTENT THE PROJECT BACKGROUND AND OBJECTIVES GENERAL INFORMATION OF AIR LAYA SCOPE OF WORK WORK FOR DGMCG/PTBA WORK FOR NEDO PROPOSED SCHEDULE PROJECT PLAN CLOSING
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THE PROJECT
Exploration and Feasibility Study of deep seated coal mining development at Air Laya and surrounding area in Tanjung Enim.
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BACKGROUND & OBJECTIVE
Background : • Air Laya Open Pit Mineable Reserves for export quality are limited (105 million ton with Geological Reserves 256 million ton) • Potential of High Wall mining and and U/G Mining of deep seated coal in Air Laya to increase mining recovery Objective : •
To conduct Coal Reserves Exploration and to prepare a Pre Feasibility Study of High Wall Mining & U/G Mining in Air Laya mine to maintain and increase PTBA’s coal export (especially to Japan).
LOCATION OF THE PROJECT Muara Enim
Tg. Enim Air Laya Lahat
PROJECT AREA +/- 3,000 Ha
SUMATRA ISLAND
Tg. Agung
Palembang
Project Area
Tg Enim
Tarahan
N JAVA ISLAND
River Road Railway
MUARA ENIM SUBAN JERIJI UTARA
N
Banjarsari Anticline
Arahan Utara Anticline
BANJARSARI
ARAHAN UTARA
Regional Stratigraphic Column of Tanjung Enim
SUBAN JERIJI TIMUR AIR LAYA
Niru seam Jelawatan seam
MTBU
Arahan Selatan Anticline ARAHAN SELATAN
MTBS
TANJUNG ENIM
Enim seam
KUNGKILAN
Kebon seam
BANKO BARAT
Benuang seam
AIR SERELO
LAHAT
BUKIT KENDI
Burung seam
BANKO TENGAH
BUKIT BUNIAN
LEGENDS :
Mangus seam Suban seam
BANKO TENGAH
VOLCANIC BRECCIA
BANKO TENGGARA
ANDESITE INTRUSION
Petai seam
M4 M3 BANKO SELATAN
M2 M1 FAULT
Merapi seam
SYNCLINE
ANTICLINE
Kladi seam
Arahan Selatan
Arahan Selatan Anticline
Arahan Utara
Arahan Utara Anticline
SumateraSelatan Selatan Sumatera
Tj Api-Api . -
Palembang
Kungkilan
Muara Tiga Syncline
Muara Tiga Selatan
Muara Tiga Anticline
Muara Tiga Besar Utara
KERTAPATI
Banjarsari Syncline Banjarsari
Lahat
Banjarsari Anticline
M.Enim TJ. ENIM SAMUDRA SAMUDRA
TARAHAN
INDONESIA
Muara Tiga Syncline
BUKIT KENDI
BUKIT ASAM
Banko Barat
Air Laya
Klawas Anticline
Liling Anticline
Enim River
0
1
MUARA ENIM TOWN
?
Laut Jawa Selat
SURALAYA
Sunda
Suban Jeriji Utara
Bukit Asam 2
3 km
M4 M3 M2 M1
Regional Geology Map of Tanjung Enim - South Sumatera
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GENERAL INFORMATION OF AIRLAYA
Geological Map of AIRLAYA
Currently the extracted coal from Air Laya are from 4 coal seams A1, A2, B, and C No. Boreholes : 671 holes
Geological Cross Section of AIRLAYA Area
THE LAST DRILLING OF D & E SEAM ON AIRLAYA AT 2006/2007 7 Holes with Total Depth 1,501 meter Estimated potential reserve : - Measured : 15.5 MT - Indicated : 64.7 MT
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COAL RESERVES AND QUALITY AIR LAYA
COAL RESOURCES AND RESERVE OF AIR LAYA : • Remaining Measured and Indicated (Jan., 2009) : 256.63 MT • Remaining Mineable (Jan., 2009) : 104.75 MT COAL QUALITY The coal rank is Sub-Bituminous to Anthracite TM : 2.50 - 26.11 % IM : 0.97 - 15.37 % VM : 11.51 - 43.17 % FC : 39.64 - 83.45 % Ash : 2.19 - 9.33 % TS : 0.08 - 1.99 % CV : 5,567 - 8,314 Kcal/Kg (ADB)
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SCOPE OF WORKS (1)
Both Parties shall jointly undertake the following during the course of the project : • Geological data acquisition • Updated Geological Mapping • Geological Logging of drilling records, Approx. 24 holes • Geophysical logging and evaluation of results, Approx. 24 holes
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SCOPE OF WORKS (2)
• VSP Survey, approximately 6 holes : • Seismic reflection survey, approx. 30 km • Geological Evaluation and Reserves Calculation • Geotechnical and Geo-hydrology study • Gas Potential Study • Coal and Rock Analysis • Pre Feasibility Study for High Wall and U/G Mining
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WORK FOR DGMCG/PTBA
DGMCG/PTBA shall undertake the following during the course of the project : • Preparation Existing geological data • Preparation land acquisition for access road to drillholes, seismic lines etc. • Coal analysis • Rock / Soil analysis • Survey work for drillholes points, seismic reflection survey points and the location of outcrops which would be confirmed by Geological Mapping. • Preparation of topographical maps at the scale of 1 : 5,000 for the target area.
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WORK FOR NEDO
NEDO shall undertake the following during the course of the project : • • • • • • •
Conduct Geological Mapping Conduct Exploration Drilling and Geophisical Logging Geotechnical and Geohydrological Study Gas Potential Analysis Conduct of Seismic Reflection Survey and VSP Survey Geological Evaluation and Reserves calculation Conduct Pre Feasibilty Study for High Wall and U/G mining
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PROPOSED SCHEDULE OF THE WORK
PROJECT PLAN
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JOINT COOPERATION IN UNDERGROUND MINING STUDY DIRECTORATE GENERAL OF MINERAL COAL AND GEOTHERMAL/PTBA - NEDO/JCOAL THE FIRST - FIVE YEAR PROGRAM 2010/2015 1st Year Plan 2nd Year Plan 2010/2011 2011/2012 Air Laya Air Laya
ACTIVITIES
1. Geological Data Acquisition a. Topographic Map 1 : 5.000 b. Existing Boreholes c. Geological Report (incl. quality data)
√
Year 3rd Year Plan 2012/2013 Air Laya
4th Year Plan 2013/2014 Air Laya
5th Year Plan 2014/2015 Air Laya
√
holes
2. Establishing GIS Database
Total Volume
1,067 √
√
1500
1500
3. Preparation Work Land Acquisition 4. Geological Mapping
Ha
5. Seismic Reflection Survey
km
10
10
10
holes
2
2
2
-
-
-
6. VSP (Vertical Seismic Profilling)
3,000 30 6
7. Drilling a. Mobilization and Demobilizition
ls
√
√
b. Depth
meter
5200
5200
5200
c. Hole
holes
8
8
8
meter
5200
5200
5200
15,600
9. Coal Properties Analysis
sample
224
224
224
672
10. Geohydrology Study
sample
1
1
1
11. Getechnical Analysis (rock and coal)
sample
376
376
376
13. Gas Potential Study
2
2
2
14. Geology and UG Mining Evaluation
1
1
1
1
4
1
1
1
1
5
1
1
8. Geophysical Logging
12. Annual Reports 13. Comprehensive Report
1
15,600 24
3 1,128 6
TENTATIVE DRILLING LOCATION MAP
DRILLING PLAN AT AIR LAYA
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CLOSING
Result of this Project will give benefits : • Increasing PTBA Mineable Reserves (high quality coal). • Maintaining & Increasing coal supply for export market, especially to Japan. • Technology and knowledge sharing, • Build a good relationship between Japan and Indonesia Government.
