Mine Site Greenhouse Mitigation

Gas Emission Expert Model For Abandoned Coal Mines

Mine Site Greenhouse Mitigation » Mine Site Greenhouse Mitigation

Published: September 17Project Number: C17058

Get ReportAuthor: Les Lunarzewski | Lunagas

This project is a continuation of ACARP Projects C13007 and C14080 (Lunagas 2005 & 2006) which updates previous mathematical formulae and decline curves and utilises new data, information and the research findings.

The research has consolidated the knowledge of gas emission characteristics of coal mine goaf in Australia into a form which enables emission predictions to be made using limited input data. The fundamental principles are encapsulated within 'Coal mine goaf gas predictor - Australian version' (CMGGP-A) professional engineering software. This easy to use tool is designed to predict the decline of methane emissions and calculate gas reservoir capacity of underground coal mine goaf. The method for estimating abandoned coal mine and goaf area methane potential is applicable to both dry and flooding mines and also takes into account coal mine methane utilisation options.

The main research findings are:

· Coal mine goaves in Australia have been classified in relation to the mining, hydro-geological and ownership conditions;

· Coal mine goaf methane resource estimated using constrained emission decay curves and related mathematical formulae avoids difficulties of identifying all gas sources and their magnitudes, full knowledge of the latter is problematic in practice;

· The proposed coal mines goaf have been classified in relation to the case studies performed for selected NSW and QLD underground coal mines which selected eight various categories in relation to the similar mining, gassy and geological conditions;

· If key data are available the empirical curves and gas reservoir simulation will provide a rapid and practical prediction of closed or abandoned coal mine methane potential; and

· Where some typical data are lacking site investigation may be required involving variously drilling, gas monitoring, water and gas pumping tests.

A dry mine gas emission decline simulation 'Drysim' (Lunagas 2006) has been extended to allow for the effects of flooding to be modelled 'Wetsim' (L Lunarzewski, D Creedy 2006) as well as to calculate gas reservoir parameters and the ability for venting, flaring or utilising coal mine methane from underground coal mine goaf. Results derived from this research have been incorporated into the CMGGP-A software to facilitate modelling of emissions in both dry and flooding conditions to provide a practical estimation of coal mine goaf methane production potential.

The software will run on a PC with Windows XP or Vista operating system and can be used by individual specialists, coal mines and/or other institutions involved in coal mine closure, coal mine methane utilisation and greenhouse gas emissions reduction.

The Lunagas CMGGP - A software comprises three main sections:

· Coal mine parameters - allows data entry for calculating decline curves for both dry and wet mines;

· Gas reservoir characteristic - allows entry of geological data for calculating the available gas reservoir; and

· Methane decline curves and gas reservoir charts - shows the results of calculations made based on data from the above two sections.

This software (CMGGP-A) is available directly from Lunagas, please email  There are two options as follows, all prices are current as at October 2009:

· Pay a fee for use of software, of $500 net mine and have Lunagas undertake the data collection, processing, simulation, interpretation and reporting at their standard charge rate of $200 net per hour; or

· Purchase MMGGP-A software for $6,000 net including user manual and half day user training.

An e-newsletter has also been published for this project, highlighting its significance for the industry.


Health and safety, productivity and environment initiatives.

Recently Completed Projects

C25069Increasing Mine Productivity By Optimising Electrical Protection

This project sets out to examine and re-evaluate some key mining electri...

C25061Bolter Miner For Rapid Roadway Development

The first Sandvik ABM20 bolter miner was introduced into the Australian ...

C24018Performance Of Cable Bolts Under Axial Loading Subjected To Varying Geotechnical Conditions

This project contributes to an improvement in mining geomechanics throug...


Open Cut

Safety, productivity and the right to operate are priorities for open cut mine research.

Recently Completed Projects

C24029Development Of A Toolbox For Fish Health Assessment In Aquatic Ecosystems Associated With Coal Industries

Central Queensland's Bowen Basin contains Australia's most exten...

C24038Quantifying Coal Dust In Urban Samples

The objectives of this project were to undertake scientifically rigorous...

C26031Condition Monitoring & Predictive Maintenance Using Artificial Intelligence Technologies

The main objective of this project was to demonstrate how subsets of Art...

Open Cut

Coal Preparation

Maximising throughput and yield while minimising costs and emissions.

Recently Completed Projects

C25020Flotation Tailings Online Measurement

Online analysers can be used to assist in improving the performance of f...

C24040Improving The Dewatering Efficiency Of Fine Flotation Concentrates By De-Aerating Froth Products

The presence of overly stable froths in fine coal flotation products is ...

C23034Comparison Of Column And Mechanical Flotation Technologies

Fine coal beneficiation is virtually essential for coking coals unle...

Coal Preparation

Technical Market Support

Market acceptance and emphasising the advantages of Australian coals.

Recently Completed Projects

C25043The Strength Of Interfaces In Metallurgical Coke And Its Influence On Coke Abrasion

This project applied tribological and scratch testing techniques to ...

C12004Coke Reactivity Test: Critical Parameters

A Draft International Standard ISO/DIS 18894 has been prepared title...

C12073Accurate Instrumental Determination Of Carbon In Coal

Traditionally, thermal coal has been traded with its value being pri...

Technical Market Support

Mine Site Greenhouse Mitigation

Mitigating greenhouse gas emissions from the production of coal.

Recently Completed Projects

C17058Gas Emission Expert Model For Abandoned Coal Mines

This project is a continuation of ACARP Projects C13007 and C14080 (...

C19054VAM Enrichment With A Two-Stage Adsorption Process

Treatment of ventilation air methane (VAM) with cost-effective technolog...

C24017Improving Methods For Quantifying Fugitive Emissions From Open Cut Coal Mining

Fugitive emissions from open cut coal mines are usually estimated fo...

Mine Site Greenhouse Mitigation

Low Emission Coal Use

Step-change technologies aimed at reducing greenhouse gas emissions.

Recently Completed Projects

C17060BGasification Of Australian Coals

Four Australian coals were trialled in the Siemens 5 MWth pilot scale ga...

C17060AOxyfuel Technology For Carbon Capture And Storage Critical Clean Coal Technology - Interim Support

The status of oxy-fuel technology for first-generation plant is indicate...

C18007Review Of Underground Coal Gasification

This report consists of a broad review of underground coal gasification,...

Low Emission Coal Use

Mining And The Community

The relationship between mines and the local community.

Recently Completed Projects

C16027Assessing Housing And Labour Market Impacts Of Mining Developments In Bowen Basin Communities

The focus of this ACARP-funded project has been to identify a number...

C22029Understanding And Managing Cumulative Impacts Of Coal Mining And Other Land Uses In Regions With Diversified Economies

The coal industry operates in the context of competing land-uses that sh...

C23016Approval And Planning Assessment Of Black Coal Mines In NSW And Qld: A Review Of Economic Assessment Techniques

This reports on issues surrounding economic assessment and analysis ...

Mining And The Community


National Energy Research,Development & Demonstration Council (NERDDC) reports - pre 1992.

Recently Completed Projects

1609-C1609Self Heating of Spoil Piles from Open Cut Coal Mines

Self Heating of Spoil Piles from Open Cut Coal Mines

1301-C1301Stress Control Methods for Optimised Development...

Stress Control Methods for Optimised Development and Extraction Operations

0033-C1356Commissioned Report: Australian Thermal Coals...

Commissioned Report: Australian Thermal Coals - An Industry Handbook