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Coalbed Methane Exploration

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CBM

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Page 1: CBM Presentation

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