Download - CBM Presentation
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Coalbed Methane Exploration
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Outline Introduction
Exploration
Seismic Prospecting Technique for Coalbed Methane Accumulating Area
Ongoing and Future CBM and CMM Research
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INTRODUCTION
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Coal Bed Methane• Natural gas found in most
coal deposits
• Unconventional Gas
• Created from buried plant material which was converted to coal by the pressure of being underground
• When the coal seam is drilled and the water is pumped out, the gas begins to flow
• Usually pure or ‘sweet’ gas and requires little processing
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CHARACTERISTIC
• Clean burning- fuel
• Cheaper energy source
• Reducing global warming
• Friendly environment
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POTENSI CBM DI INDONESIA
Sumber: Presentasi Dirjen Migas, 25 Juni 2008
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EXPLORATION
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Stage 5:Commercial Development
Time (years)0 1 2 3 4 5
Government and Stakeholder Consultation occurs throughout all stages of exploration and development
Project Reclamation
20
Go/No Go Decisions are made at the end of each stage dependent on the results of the geological and engineering information that has been collected
Stage 1: Identification of CBM Resource
Stage 2:Early Evaluation Drilling
Stage 3:Pilot Project Drilling
Stage 4:Pilot Production Testing
Note: In some cases, government provides incentives to encourage industry investment and development of the resource. This usually occurs in the early stages (1 or 2) of the project
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Seismic Prospecting Technique
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GENERATING
SORTING
TRAPING
PHASE
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STRATIGRAPHY
SEISMIC SECTION
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Seismic Prospecting Methods for Coalbed Methane
• Predicting coalbed methane based on bury depth •Predicting coalbed methane based on impedance inversion •Predicting coalbed methane based on frequency spectrum •Predicting coalbed methane based on seismic attributes
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Ongoing and Future CBM and CMM Research
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CBM INDONESIA GROWTH BENCHMARKING
Source; After Sammy Hamzah 2011
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CAN THE TARGET OF THE ROAD MAP CAN BE ACHIEVED ???
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• Produksi ‘Sweet Spots’ dengan permeabilitas reservoir yang tinggi merupakan faktor utama dalam pengembangan CBM terutama di daerah seperti San Juan Basin di USA dan cekungan batubara Queensland di Australia
• Saat ini, reservoir batubara yang belum dikembangkan memiliki permeabilitas yang rendah dan dalam beberapa kasus terdapat reservoir batubara dengan permeabilitas yang tinggi dalam jumlah yang banyak di sekelilingnya
• Penelitian pada reservoir dengan permeabilitas rendah diperlukan untuk mendapatkan potensial gas yang lebih banyak dan mengikat sumber pada infrastuktur yang sudah ada dan sedang mengeksploitasi ‘sweet spots’
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Kasus seputar Penelitian CBM• Strategi Eksplorasi: Metode eksplorasi, strategi dan hasil eksplorasi dalam area baru
• Hasil Eksperimen Laboratorium: Prosedur dan penemuan baru dari eksperimen pada struktur pori batubara, gas dan interaksi batubara.
• Lapangan Produksi Gas: Pemboran advance, stimulasi, dan penyelesaian teknologi sumur; co-produksi dari CBM dengan gas alami yang lain
• Modelling: Terkait dengan studi pada semua hal yang telah disebutkan diatas serta simulasi numerik dan mengoptimasi alat untuk menggambarkan perilaku produksi
• Enhanced CBM Recovery: Studi laboratorium dan studi lapangan pada injeksi gas
• CMM Mitigation: Drainase gas selama penambangan batubara bawah tanah pada lapisan batubara
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CBM to POWER
?
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Reference Tang, H. Seismic Prospecting Technique for Coalbed Methane Accumulating Area. 2011. Tim A. Moore. Coalbed Methane : A Review. 2012. https://www.youtube.com/watch?v=AaPS4lkCzzg