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Underground

Our underground health and safety, productivity and environment initiatives include strengthening ventilation and gas management technology, minimising risks from fires and explosions, advancing emergency response technologies, reducing operating costs and improving reliability of subsidence predictions.


Ventilation, Gas Drainage and Monitoring (84 Reports)

3D Permeability Characterisation of Large Coal Samples

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C1002701/02/2003
Author: Sue Golding, Paul Massarotto | University of Queensland

ACARP, Newlands and Kestrel have supported a University of Queensland project investigating the 3-dimensional permeability characteristics of coal under true triaxial stress conditions. This is achieved by using the world-first True Triaxial Stress Coal Permeameter (TTSCP), ....  read more

 

An Innovative Fibre Optic Based Methane Sensor

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C2001401/02/2013
Author: Saiied Aminossadati, Warwick Bowen, Eoin Sheridan, Mohammad Amanzadeh, Mehmet Kizil | The University of Queensland

The release of methane gas into underground coal mines is an unavoidable consequence of most coal mining operations. The presence of such gas in mine environment poses some safety and health concerns and requires constant monitoring by means of an intrinsically safe, fast, reliable and ....  read more

 

Assessing Measurement Procedures for Estimating Greenhouse Gas Emissions from Underground Coal Mining

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C1800501/09/2008
Author: Stuart Day, Ron McPhee | CSIRO Energy Technology, CSIRO Exploration & Mining

With the introduction of the National Greenhouse and Energy Reporting Act 2007, underground coal mines are now required to report their annual fugitive greenhouse emissions to the Department of Climate Change. Emission estimates are to be made in accordance with the prescribed methods of the ....  read more

 

Automatic Valve for Immediate Shut-Down of Gas Capture from Underground Sources

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C602101/01/1998
Author: Les Lunarzewski | Lunagas

Underground gassy coal mines both throughout the world and in Australia, often experience periods of high gas emission or weekend-holiday breakdowns, in which the best option is to shut down production, clear out the area and wait for the gas to subside, resulting in costly delays and ....  read more

 

Borehole Dielectric Probe for the Detection of Mylonite Zones and Other Structures

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C602630/06/1999
Author: Wayne Murray | CSIRO Telecommunications & Industrial Physics

The measurement of the high-frequency electrical properties of the materials surrounding a borehole can provide a means of logging changes in seam material and structure with distance along a hole and can possibly also give some positional information on roof and floor.

The electrical ....  read more

 

Borehole Permeability Damage and Its Impacts on Gas Drainage

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C1403817/10/2008
Author: Luke Connell, Rob Jeffrey, Budi Suharto | CSIRO Petroleum

Drainage of gassy coal seams using boreholes is essential to many coal mining operations. The effectiveness with which boreholes drain the coal gas is a complex function of seam and borehole properties. A complication to the drainage process occurs when the fluid permeability is lowered in the ....  read more

 

Borehole Pressurisation System

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C307201/07/1998
Author: Ian Gray | Sigra

This report describes the development, design and surface testing of a device designed to maintain pressure in a borehole during all phases of drilling. This borehole pressurisation device is designed to fit  ....  read more

 

Borehole Shut Off Valve for Gas Drainage Systems

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C602201/06/1999
Author: Ian Gray, Paul Petrie-Repar | Sigra

This report describes the development and form of a shut off valve designed for gas drainage systems in underground coal mines. The valve is designed to close off flow from boreholes in the event of damage to the gas drainage pipeline.

The shut off valve developed is designed ....  read more

 

Caliper Probe For Logging In-Seam Boreholes

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C307101/10/1997
Author: Brian McCowan | ACIRL

In response to the great interest in the prediction of outburst zones and detection of geological structures, a caliper logging probe has been developed. The probe is based on the reliable and intrinsically safe ....  read more

 

Coal Mine Outburst Mechanism, Thresholds and Prediction Techniques

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C1403201/08/2006
Author: Ian Gray | Sigra

This report should be compulsory reading for those responsible for mining coal with significant gas content.

This report has been prepared as a document which describes outbursts and their mechanism in an environment where most Australian Coal miners have never seen an  ....  read more

 

Commercialised Version of Automatic Shut Down Valve

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C703801/06/1999
Author: Les Lunarzewski | Lunagas

Underground gassy coal mines both throughout the world and in Australia, often experience periods of high gas emission or weekend-holiday breakdowns, in which the best option is to shut-down production, clear out the area and wait for the gas to subside, resulting in costly delays and ....  read more

 

Controlling Heatings and Gas Leakage Using Innovative Polymer Gel - Pilot Scale Testing

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C2003901/05/2015
Author: Shenggen Hu, Sheng Xue | CSIRO

The primary objective of this project was to carry out pilot scale tests of gel systems developed in ACARP project C14021 for assessing the effectiveness of the control of simulated pillar and roof fires.

 

In this project, the following major tasks have been completed:

 ....  read more

 

Coordination of In-Seam Drilling and Gas Research

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C800320/02/2001
Author: John Hanes | J&SD Hanes

The objectives of this project were:

  • To maintain communications amongst all inseam drilling and gas personnel
  • To assist coordination of all research and development efforts in in-seam drilling and outbursts,
  • To assure the knowledge gained from previous
 ....  read more

 

Coordination of In-Seam Drilling Research

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C403509/02/1996
Author: John Hanes | J & SD Hanes

In-seam drilling was recognised as the top priority for underground coal exploration research at the ACA Workshop "Underground Coal Mining Exploration Techniques" culminating in the ACARP funded In-seam Drilling Research Scoping Study completed in 1993. The Scoping Study defined the ....  read more

 

Co-Ordination of In-Seam Drilling Research

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C502725/03/1997
Author: John Hanes | J & SD Hanes

In-seam drilling technology and priorities for its application have changed considerably since 1993 when the scoping study into in-seam drilling was conducted. Technological advances have mainly been due to the changing attitude in the industry to in-seam drilling and its role in defining ....  read more

 

Co-Ordination of In-Seam Drilling Research

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C602725/03/1998
Author: John Hanes | J & SD Hanes

In-seam drilling technology and priorities for its application have changed considerably since 1993 when the scoping study into in-seam drilling was conducted. Technological advances have mainly been due to the changing attitude in the industry to in-seam drilling and its role in ....  read more

 

Co-ordination of In-Seam Drilling Research

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C702220/05/1999
Author: John Hanes | J & SD Hanes

In-seam drilling technology and priorities for its application have changed considerably since 1993 when the scoping study into in-seam drilling was conducted. Technological advances have mainly been due to the changing attitude in the industry to in-seam drilling and its role in ....  read more

 

Data Handling for Gas Drainage Flowmeters (FREE VIA EMAIL)

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C802101/02/2002
Author: Ian Gray, Paul Clemence | Sigra

This report describes the development and final form of an electronic system designed to monitor underground gas flowmeters. The system is designed to power and communicate with up to 255 devices along a twisted pair cable which may have a length of up to 2 km. The flowmeters may be replaced ....  read more

 

Degassing of Methane and Carbon Dioxide: Prediction of Gas Composition

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C503709/07/1998
Author: Peter Crosdale | James Cook University

Coals at depths greater than 200 to 400m usually contain significant quantities of gas, which is predominantly methane (CH4 ). However, many coals contain large amounts of carbon dioxide (CO2 ) and mixtures of CH4 and CO2. Safe underground coal mining requires management of these gases, ....  read more

 

Demonstration of Bit Torque, Load, RPM and Survey Tool

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C702301/06/2002
Author: Ian Gray, Paul Clemence, Gary Paradise, Sean Charlton, Robert Dixon, Peter Hatherly | Sigra, CSIRO Exploration & Mining, CMTE

Geosteering is an oilfield term that refers to directional drilling guidance systems that have on board sensors to determine the rock type either being drilled or in proximity to the drilling head. Geosteering technology allows drills to follow target horizons and return information on the ....  read more

 

Develop In-Situ Test Methods for Ventilation Structures - Phase 1

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C1001428/05/2002
Author: Jan Oberholzer | SIMTARS

This project set out to determine the feasibility of using non-destructive testing methods to evaluate the strength of ventilation control devices to withstand the required ....  read more

 

Development of a General Purpose Hydrogen Sensor

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C303430/09/1994
Author: M Gal, Michael Brungs | University of New South Wales

In air, concentrations of hydrogen exceeding 4% are easily ignitable and highly flammable. In coal mines, hydrogen concentrations in the range 1-200 ppm indicate the level of mine "heat up" (spontaneous combustion of the coal face), while hydrogen concentrations at percentage levels ....  read more

 

Development of a Hydrogen Monitor for Use In Coal Mines

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C404025/07/1997
Author: Michael Brungs | University of New South Wales

Transmission of light through a palladium film changes when the film is exposed to and absorbs hydrogen. The changing transmission can be related to the hydrogen concentration and forms the basis for a hydrogen sensor.    To be useful in coal mines, the hydrogen sensor must be ....  read more

 

Development of a Torque Thrust and RPM Sensor

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C3073-C403801/10/1997
Author: Ian Gray | Sigra

C3073

This report describes the development and design of a drilling substitute (sub) containing torque and thrust sensors for use in rotary drilling or in downhole motor drilling. The sub is a mechanically simple inclusion into a drill string.

In addition to its ....  read more

 

Development of a Web-Based, Underground Coalmine Gas Outburst Information Management System

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C1401501/04/2007
Author: Naj Aziz, Richard Caladine, Lucia Tome, Ken Cram, Devendra Vyas | University of Wollongong

In February 2002 a survey result was presented at a workshop in Wollongong on ACARP Outburst Research Needs. The workshopconfirmed a strong desire by the coal industry to establish an Internet-based information management system, a gateway, on outbursts of gas and coal in ....  read more

 

Development of an Alternative Electronic Spark Test Apparatus

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C2000607/07/2015
Author: Rajiv Shekhar, Enver Bajram | CRCMining

In this phase of the project, CRCMining has further developed and demonstrated proof of concept for an electronic alternative to the Spark Test Apparatus (STA) currently used in intrinsic safety (IS) certification of power supplies for use in an explosive environment. The Electronic Spark ....  read more

 

Displacement of Methane from the Goaf into the Working Place as a Result of Wind Blasts in Underground Coal Mines

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C703101/07/2001
Author: Chris Fowler | University of New South Wales

The potential expulsion of methane from the goaf during wind blasts and its possible incursion into the working place has been of concern to the Australian underground coal mining industry for many years. For example, the explosions at Moura No. 4 Mine in Queensland in 1986 and at Endeavour ....  read more

 

Drilling for Outburst Risk Determination

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C2402401/09/2017
Author: Ian Gray | Sigra

This project's purpose was to determine parameters that may be indicative of outbursting from normal gas drainage drilling using down hole motors. The objectives were to measure, on a sample by sample basis, gas content and diffusion coefficient of the coal being drilled. It was also ....  read more

 

Drilling Technologies for Soft & Low Permeability Coals

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C1001601/09/2004
Author: Matt Stockwell, S Thomson, M Gledhill, T Meyer | CRCMining, University of Qld, CoalBed Concepts

This project was designed to address two specific and separate issues affecting underground inseam drilling; soft coal and tight (low permeability) coal. These two separate problems have a common tangible consequence; difficulty in draining gas to threshold levels to enable mining to proceed ....  read more

 

Dust Measurement and Control in Thick Seam Mining

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C900201/08/2001
Author: Stewart Gillies | University of Queensland

The scoping study examined dust problems that are being faced by thick seam longwall mine operators, evaluated options and recommend priorities for improvement. The increasing scale of thick seam longwalls challenges the maintenance of safe and healthy face environments in Australian ....  read more

 

Evaluation of a Full Scale Pressure Test for Ventilation Control Devices

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C800621/12/2000
Author: David Pearson, ADS Gillies, AR Green, R Day, P Dux | TestSafe Australia

This report describes recent research undertaken to develop, evaluate and calibrate a full-scale pressure test facility for ventilation control devices (VCDs) within Australia. It also examines a number of important aspects of stopping and seal performance, usage, design and application for the ....  read more

 

Evaluation of In-Seam Borehole Stability in Coal Mines

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C302930/10/1995
Author: Ripu Lama | Kembla Coal & Coke

This report presents an analysis of techniques used in Australian and overseas mines to stabilise gas drainage holes drilled horizontally in coal seams, with particular reference to the Bulli Seam.   Technologies used for short hole and longhole in-seam drilling in Australia and ....  read more

 

Factors Affecting The Drainage Of Gas From Coal And Methods To Improve Drainage Effectiveness

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C1800401/06/2011
Author: Dennis Black | University of Wollongong

The relationship between gas production from underground-to-inseam (UIS) drainage boreholes and various coal seam properties and operational factors were examined. Gas production from 279 UIS gas drainage boreholes was collated and assessed relative to a variety of coal geological properties ....  read more

 

Factors Influencing the Accuracy of Measurement of Gas Content of Coal: Intercomparison of the Quick Crush Technique

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C602301/12/1998
Author: Abou Saghafi, David Williams | CSIRO Energy Technology

This project investigated the variability of gas content results across three laboratories processing mine gas content using the new quick crushing or fast desorption method.

In this study some 10 horizontal boreholes were drilled into coal seams from newly developed roadways ....  read more

 

Foam Injection Technologies for Goaf Inertisation

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C1502001/11/2010
Author: Patrick Humphries, Ting Ren, Srinivasa Yarlagadda | CSIRO Earth Science and Resource Engineering

This report consists of the summary of the research work carried out under the Australian coal association research program (ACARP) project C15020 -"Foam Injection technologies for Goaf Inertisation". The main objective of the project is to develop and demonstrate the application of ....  read more

 

Further Development of Remote Control Outburst Mining

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C303510/05/1995
Author: P Wynne, R Case | Kembla Coal & Coke

This report details advances made and technology trialed when remote mining was undertaken at Tahmoor. Remote mining had previously been demonstrated at Tahmoor as an alternative strategy to counter the significant risk posed by the possibility of outbursts.

 ....  read more

 

Gas Detection Technique and Equipment to Continuously Monitor Gas in Drill Fluid

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C307731/08/1994
Author: Les Lunarzewski | Lunagas

A fluid logging system for underground drilling can be used as a complementary method for the recognition of gas and gas-rock outburst prone conditions ahead of the face and along an inseam drill hole.   Mud logging technology has been used in surface boreholes in the oil industry, ....  read more

 

Gas Drainability and Outburst Risk Assessment based on the Distribution of Micro-Markers in Coal Seams

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C1105701/09/2003
Author: Andrew Gurba, Lila Gurba, Colin Ward, Jeff Wood | AGURBA, CCSD, University of New South Wales, BHP Billiton Illawarra Coal

Access to underground coal reserves in Australia and other coal producing countries is often conditional on the reduction of coal gas content to below specified regulatory outburst threshold limits. Reduction of gas content is generally achieved by pre-drainage of the coal seam using ....  read more

 

Gas Drainage Efficiency Improvement

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C1001101/08/2002
Author: Andrew Gurba, Lila Gurba, Colin Ward, Andrew Filipowski | AGURBA, University of NSW, Coal Geotechnical Services

Access to underground coal reserves in Australia and other coal producing countries is often conditional on the reduction of coal gas content to below specified regulatory outburst threshold limits. Reduction of gas content is generally achieved by pre-drainage of the coal seam using ....  read more

 

Gas Drainage Flowmeter

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C503001/07/1997
Author: Ian Gray | Sigra

This report describes the development of a flow meter for gas drainage operations. It is designed to be inexpensive and to be able to be monitored automatically utilising intrinsically safe electronics.

 ....  read more

 

Gas Emission Curves for Sealed Goafs or Abandoned Mines

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C1300701/08/2005
Author: Les Lunarzewski | Lunagas

Lunagas was asked to perform a professional data and results analysis regarding gas emission phenomenon for sealed goaves and abandoned coal mines in Australia. Consequently, historical data and results for the period 1985 - 2004 were used to establish the most typical curves, which  ....  read more

 

Guidelines for the Measurement and Reporting of Fugitive Emissions from Underground Coal Mines

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C2100227/03/2015
Author: Dennis Black | PacificMGM

The National Greenhouse and Energy Reporting Act 2007 (Act), the National Greenhouse and Energy Reporting Regulations 2008 (Regulations) made under that Act and the National Greenhouse and Energy Reporting (Measurement) Determination 2008 (No.1) (the Determination) ....  read more

 

High Speed Cross Panel Drilling

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C702401/11/1999
Author: Paul Dunn, Mark Stockwell, Scott Adam, I Hutchinson, I Mason, E Schultz | University of Queensland, CSIRO Exploration & Mining, University of Sydney

Gas drainage is a major issue currently affecting underground coal mines. The difficulties associated with underground gas drainage are partly responsible for the poor development rates for longwall coal blocks; these in turn limit coal production from underground operations. In an ....  read more

 

High Speed Cross Panel Drilling System

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C802301/02/2001
Author: Paul Dunn, Matt Stockwell, S Adam, Ian Hutchinson, Iain Mason, E Shultz | CMTE, University of Queensland, CSIRO Exploration & Mining, University of Sydney

Gas drainage is a major issue currently affecting underground coal mines. The difficulties associated with underground gas drainage are partly responsible for poor development rates for longwall coal blocks; this in turn limits coal production from underground operations. In an effort to ....  read more

 

High Speed In-seam Drilling System for Effective Gas Drainage

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C2400801/07/2016
Author: Scott Adam, Joel Kok, David Barry, Siqi Pan, Nathanial Thomlinson, Enver Bajram, James Welsh | CRCMining

A continuous feed, high speed drilling system for underground gas drainage promises to transform productivity of underground coal gas drainage drilling. CRCMining has been developing continuous waterjet drilling technology for over two decades. Recent commercialization of the surface to inseam ....  read more

 

Implementation Strategy: Ventilation and Gas Management - Underground Coal Mines

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C2500101/08/2016
Author: Bruce Robertson, Andrew Self | Bruce Robertson Consultant

Please be aware that the data gathered to support the development of this strategy contains personal observations from the industry, that were provided in confidence and as such will not be published.

 

The implementation strategy following is a review of ....  read more

 

Implications of Production Scale Hydraulic Fracturing by Coal Bed Methane Drainage Operations on the Subsequent Safe and Efficient Mineability of Coal Seams

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C1401129/05/2007
Author: Ken Mills, Rob Jeffrey, Winton Gale | Hydraulic Fracturing Technology, SCT Operations Pty Ltd, CSIRO Petroleum

Production scale hydraulic fracturing is routinely used by petroleum operators to stimulate water and gas production in coal bed methane projects.  Where petroleum leases overlap with current or future coal mining leases, production scale hydraulic fracturing has been identified by ....  read more

 

Improved Application of Gas Reservoir Parameters

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C1000801/04/2003
Author: Ray Williams, E Yurakov | GeoGAS, CSIRO Energy Technology, James Cook University, Multiphase Technologies

The project is centred on improving the understanding and accuracy of gas reservoir modelling applied to coal mining. It covers a description and evaluation of the input parameters, primarily gas content, permeability, relative permeability, gas sorption capacity, desorption ....  read more

 

In-Seam Drill Monitoring (Stage 3)

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C602901/08/1999
Author: Richard Danell | BHP Coal

This report documents the work conducted during Stage 3 of an ACARP project entitled ‘In-seam Drill Monitoring’. This project is part of an integrated in-seam drilling research program that aims to increase the effectiveness of underground drilling operations. BHP has conducted ....  read more

 

In-Seam Drill Monitoring and Bit Location System - Stage 1

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C307030/03/1995
Author: Richard Danell, G Duncan, L Leung, T Lewandowski | BHP Research

This project documents work done during stage 1 of the three stage ACARP project. It is part of an integrated in seam drilling research program supported by the ACA which aims to increase the effectiveness of underground drilling operations.

The project ....  read more

 

In-Seam Drill Monitoring and Bit Location System (Stage 2)

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C403601/06/1996
Author: Richard E Danell, T Lewandowski, C McLeod, L Leung | BHP Research Newcastle Laboratories, BHP Steel

This report documents the work conducted during Stage 2 of an ACARP project entitled 'In-seam drill monitoring and bit location system'. The project is part of an integrated in-seam drilling research program which aims to increase the effectiveness of underground drilling operations. ....  read more

 

Investigation of the Potential for Pre-Drainage of the Lower Seams at Appin Colliery Utilising Hydra

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C503601/01/1997
Author: Kevin Meaney | CSIRO Petroleum Resources

This report examines the potential for enhancing gas drainage performance from the lower coal seams of the Illawarra coal measures by utilising hydraulic fracturing in cross measure holes to stimulate gas production.  The relative impacts of drainage hole spacing and drainage time are ....  read more

 

Laboratory Study Of Coal Properties & Outburst Simulation - Application To Gas Drainage, Outburst Prediction, Control & Management

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C1301221/01/2009
Author: Xavier Choi | CSIRO Petroleum

This project is an extension of work conducted in Project C6024 (Wold and Choi, 1999) and C9023 (Choi and Wold, 2003). Some of the results from Project C11030 (Wold et al., 2006) were also utilised in this project. The aims of the research project were to:

· Improve the ....  read more

 

Likelihood of High Overpressures on Seals

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C1701501/11/2012
Author: R. L. Davis, J. W. Oberholzer, M. Gido, A. D. S. Gillies, H. W. Wu | Simtars and Gillies Wu Mining Technology

The US Sago mine disaster in 2006 caused mine seals to be destroyed by an atmospheric explosion. Investigations into the appropriateness of seal strength requirements to withstand a pressure event followed. New designs have been developed and various US changes implemented.  Australian ....  read more

 

Longhole Water-Jet Drilling for Gas Drainage

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C902001/04/2003
Author: Matt Stockwell, M Gledhill, S Hildebrand, S Adam, Tim Meyer | CMTE, University of Qld

In-seam drilling for gas drainage is now an essential part of operations at many Australian underground coalmines. Gas drainage is required to reduce inseam gas content to below threshold levels for safe roadway development and panel extraction. Failure to drain coal increases the risk of ....  read more

 

Longhole Waterjet Rotary Drilling for In-Seam Gas Drainage

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C602801/07/1999
Author: Paul Dunn, M Stockwell, T Meyer | CMTE, University of Queensland, Aquamin Research

Gas drainage is a major issue currently affecting underground coal mines. The difficulties associated with underground gas drainage are partly responsible for the poor development rates for longwall coal blocks; this in turn limits coal production from underground operations. In an ....  read more

 

Maximising Coal Production in the Presence of H2S Seam Gas

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C603101/08/2000
Author: Stewart Gillies | University of Queensland

The study addresses Hydrogen Sulphide (H2S) in coal seams. The objectives of the project were to undertake a comprehensive series of interrelated studies to gain a full understanding of this complex problem. The goal was to understand how, where and why high concentration zones of H2S ....  read more

 

Numerical Modelling of Outburst Mechanisms and the Role of Mixed Gas Desorption

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C902301/12/2002
Author: Xavier Choi, Mike Wold | CSIRO Petroleum

This project is an extension of Project C6024 (Wold and Choi, 1999). The project aims to develop a high level numerical model for the simulation of coal and gas outbursts, for the purposes of:

  • improved application of outburst risk criteria under variable mining conditions
 ....  read more

 

Optimisation of Longwall Goaf Gas Drainage & Control Systems

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C1001701/06/2004
Author: Rao Balusu, Neil Ruffs, Ron Peace, Tim Harvey, Shen Zue, Haruko Ishikawa | CSIRO Exploration & Mining, Central Colliery, Appin Colliery, Anglo Coal

The main objective of the project was to develop and demonstrate optimum goaf gas drainage and control strategies for improved gas management in longwall panels in order to reduce gas delays on the face. The project has combined extensive field studies together with computational fluid ....  read more

 

Optimising Sand-Propped Hydraulic Fracture Stimulation of In-Seam Gas Drainage Holes

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C1202101/08/2005
Author: Rob Jeffrey, Luke Connell, Ken Mills | CSIRO Petroleum, SCT Operations

Dartbrook coal mine sponsored a trial of sand-propped hydraulic fracturing as a way of stimulating gas drainage rates from in-seam horizontal gas drainage boreholes. The trial placed 20 propped fractures in a borehole drilled from 10 cut through and 10 fractures in a second borehole ....  read more

 

Outburst Mechanisms: Coupled Fluid Flow-Geomechanical Modelling of Mine Development

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C602401/12/1999
Author: Mike Wold, Xavier Choi | CSIRO Petroleum

Outburst risk management

A gas outburst is an essentially dynamic event in which coal and/or rock is projected into a mine opening, accompanied by a rapid release of gas. In Australian experience, the mass of coal/rock may range from small (less than 1 t) to very ....  read more

 

Outburst Risk Determination and Associated Factors

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C2301406/11/2015
Author: Ian Gray, Jeff Wood | Sigra

This report covers an investigation into the factors that lead to an outburst. It also covers the processes of measurement to arrive at the quantification of these and the shortcomings thereof. As part of the study a large number of outburst cases have been examined. This data base has come ....  read more

 

Phase II - Tools to simplify the Coiled Tube Drilling System and Phase I - Coiled Tubing Drilling System Development - Risk Mitigation

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C1701701/02/2013
Author: S Adam, M Stockwell, P Lever, A Bewley, E Prochon, S Leonard, Joe Cronin | CRCMining

This project is a continuation of ACARP project C17017 "Phase I - Coiled Tube Drilling System Development - Risk Mitigation".  The Phase I project developed a concept and performance specification for an underground in-seam coiled tube drilling rig. It also addressed a range of ....  read more

 

Precursors and New Understanding of High Gas Emissions at Appin Colliery Through Microseismic Monitoring

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C602501/08/1998
Author: Xun Luo, Peter Hatherly | CSIRO Exploration & Mining

During part of 1996, a microseismic monitoring program was carried out at Appin Colliery to investigate the geomechanical behaviour associated with longwall mining. The data obtained in that study also provided the opportunity to investigate any seismic signatures associated with gas ....  read more

 

Predictions of Outbursts in Underground Coal Mines Based on Radon-222 Anomalies

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C503501/07/1998
Author: Wlodek Zahorowski, S Whittlestone | ANSTO

The frequency and magnitude of instantaneous outbursts increase with depth and rising advance rate. These conditions are increasingly common in coal mining. Effective outburst management strategies will have to respond to this challenge. Unfortunately, most current methods of evaluation ....  read more

 

Real Time Return Gas Monitoring for Outburst and Gas Drainage Assessment

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C307610/07/1997
Author: Ray J Williams, Mike I Slater | GeoGas

The aim of this project was to create a turn key, prototype, stand alone, real time, gas monitoring system capable of providing quantitative assessments of gassiness levels on at least a shift by shift basis and enabling unusual gas emission patterns to be readily flagged. The project involved ....  read more

 

Remote Methane Measurement in Underground Coal Mines

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C1300830/05/2007
Author: Chris Fowler | University of New South Wales

No gas sensor currently employed in underground coal mines is capable of remote sensing. Such a device would be of considerable benefit to the Australian coal mining industry in that it would facilitate methane detection and measurement in difficult-to-access locations.

The ....  read more

 

Reproducibility of Gas Content Measurements Using the Fast Desorption Technique

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C802401/06/2003
Author: Richard Danell, Abouna Saghafi , Ray Williams , Jeff Wood | BHP Billiton, CSIRO Energy Technology, GeoGAS

Gas content measurement is a principal tool for the assessment and management of outburst risk by the Australian underground coal industry. Most gassy underground mines use a gas content threshold as a major determinant as to whether mining is permitted to take place. Gas content measurement ....  read more

 

Review of Inseam Drilling Practice

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C1507501/12/2009
Author: S. Thomson, Z. Qzn | CoalBed Concepts, CRC Mining

It has long been recognised that current inseam drilling practice in Australia has serious limitations and likely results in higher than necessary costs to mining operations.  Failed boreholes due to "boggy ground" and poorly performing individual borehole drainage are a common ....  read more

 

Sensing and Logging for In-Seam Boreholes

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C403701/11/1996
Author: Peter Hatherly, Richard Dixon, T Tchen, Z Jecny, C Ceravolo | CSIRO Exploration & Mining, CSIRO Applied Science

The objectives of this project were to develop sensors for determining the position of the drill bit within the coal seam (roof-floor proximity)  and develop geophysical logging tools for indicating geological conditions within the borehole

  ....  read more

 

Standard for In-Seam Drilling Equipment

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C307430/06/1995
Author: Rodney Young | Applied Electro Systems

The aim of this project was to define a common electrical and mechanical specification for the manufacture and deployment of sensor equipment that may be used behind the motor in inseam drilling. The goal was to facilitate the testing and use of new sondes. The need ....  read more

 

Stimulation of Gas Make from Horizontal In-Seam Drain Holes by Hydraulic Fracturing

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C403301/10/1999
Author: Rob Jeffrey | CSIRO Petroleum

Hydraulic fracturing was attempted as a way of stimulating horizontal gas drainage holes in coal at German Creek Mine, Central Colliery. Work was carried out in one horizontal hole  ....  read more

 

Sudden Outbursts of Gas and Coal in Underground Coal Mines

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C403416/04/1996
Author: J Bodziony, Ripu Lama | Kembla Coal & Coke

The phenomenon of outbursts of gas, coal and rock is neither new nor isolated in its occurrence to a particular coal field. It has occurred in virtually all the major coal producing countries of the world.  In the last 150 years, as many as 30,000 outbursts have occurred in the world, ....  read more

 

Symposium on Management and Control of High Gas Emissions and Outbursts in Underground Coal Mines

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C307920/03/1995
Author: Ripu Lama | Kembla Coal & Coke

This conference was held from 20-24 March 1995 at Wollongong. It was attended by 220 delegates from 14 countries, and advanced the mining industry's understanding of the causes and prediction of gas induced outbursting in coal mines.

 ....  read more

 

Technology and Feasibility of Potential Underground Thick Seam Mining Methods

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C800901/04/2002
Author: Bruce Hebblewhite, Y Cai, A Simonis | University of New South Wales, CMTE

In Australia there are over 17 Billion tonnes of resources of thick coal seams applicable to extraction by underground methods. There have been a number of research investigations over the past twenty years to investigate safe and efficient means of extracting these resources. However the ....  read more

 

The Application of Infra-Red ‘Open Path’ Methane Detection and Measurement to Australian Underground Coal Mines

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C902201/04/2003
Author: Chris Fowler | University of New South Wales

Infra-red 'open path' methane detection and measurement has been widely adopted by the oil, gas and petrochemical industries. Such systems determine in-situ methane concentration over a path between two points where the path length may vary from 500 mm to more than 200 metres. Coal industry ....  read more

 

The Barclay Mowlem Mine Ventilation Systems

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C701301/09/2001
Author: Mike Downs | Barclay Mowlem Construction

The test programme of 4 consecutive blasts and 1 further `inadvertent' blast, conclusively demonstrated that the overcast design can successfully withstand the target rating of 5 psi.  The level of blast intensity applied, the deformation response of the structure and the basic ....  read more

 

The Development of a Geosteering Tool for In-Seam Drilling

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C502901/06/2002
Author: Ian Gray, Paul Clemence, Gary Paradise, Sean Charlton, Robert Dixon, Peter Hatherly | Sigra, CSIRO Exploration & Mining, CMTE

Geosteering is an oilfield term that refers to directional drilling guidance systems that have on board sensors to determine the rock type either being drilled or in proximity to the drilling head. Geosteering technology allows drills to follow target horizons and return information on the ....  read more

 

The Effects of Water Within the Coal Matrix on Gas Drainage

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C1601201/10/2008
Author: Zhejun Pan, Michael Camilleri, Luke Connell | CSIRO Petroleum Resources

Gas drainage from coal is a complex process whereby gas, initially adsorbed within the coal matrix, becomes a free phase and migrates through the matrix into the cleat system and eventually into a drainage borehole. The effect of water in the cleat system on the gas migration process is well ....  read more

 

The Geophysical Estimation Of Concentration and Composition of Gas In-place In Un-mined Coal Seams

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C2001201/06/2013
Author: Mark Lwin | Curtin University

The primary objective of this project was to demonstrate an ability to predict concentration and composition of Gas In Place (GIP) from a deterministic analysis of geophysical logs and laboratory measurements on core samples. We have achieved this goal in respect to the determination of gas ....  read more

 

The Green Book - Spontaneous Combustion in Australian Coal Mines

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C1801301/03/2015
Author: David Cliff, Darren Brady, Martin Watkinson | University of Queensland, Mine Safety Institute of Australia, Simtars

This reference text called 'The Green Book', was prepared by Simtars in 1996 in response to a need for reference material on spontaneous combustion which relates to Australian coal mining practices and conditions.

 

This new edition reflects the significant ....  read more

 

Validation and Application of a Numerical Outburst Model as a Tool for Outburst Management Through Field Studies

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C1601609/12/2014
Author: Xavier Choi | CSIRO

1. The basic underlying mechanism for outburst initiation involves the expulsion of coal at a pressure gradient above a critical value which is directly related to the strength and porosity of the coal at the current state. Coal strength, porosity, stress, gas pressure and pressure gradient are ....  read more

 

Variability of Coal Seam Parameters for Improved Risk Assessment for Gas Outburst in Coal Mines

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C1103001/12/2006
Author: Mike Wold, Luke Connell, S K Choi | CSIRO

The project was undertaken by CSIRO Petroleum with the broad objective of improving the basis for gas outburst risk assessment.  The roles of coal permeability and strength in gas outburst mechanisms were investigated with particular reference to their spatial variability on a  ....  read more

 

Waterjet Assisted Drilling of In-Seam Cross Panel Methane Drainage Holes

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C502801/05/1997
Author: Paul Dunn, M Stockwell | CMTE, University of Queensland, CSIRO Exploration & Mining

For many mines poor development rates for longwall coal blocks are linked closely to problems of underground gas drainage. In an effort to address current safety issues associated with methane drainage and improve longwall productivity, the CMTE has been investigating the applicability of high ....  read more

 

Underground

Health and safety, productivity and environment initiatives.

Recently Completed Projects

C25061Bolter Miner For Rapid Roadway Development

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

C21011Development Of New Testing Procedure For The Assessment Of Resin Performance For Improved Encapsulated Roof Bolt Installation In Coal Mines

In underground coal mining, the resin bond between the rock bolt and...

C20003RISKGATE

DO NOT CLICK GET REPORT- THE OUTCOME OF THIS PROJECT IS A WEB SIT...

Underground

Open Cut

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

Recently Completed Projects

C20015Sustainable Management Of Plantations For Rehabilitation, Carbon And Wood

A series of plantation forest trials were established in the late 19...

C19024Guidelines For Establishing Ecologically Sustainable Mine Water Release Criteria In Seasonally Flowing Streams

Extreme rainfall conditions in the Fitzroy Catchment over an approxi...

C17034Dragline Machine House Dust Control

A study has been undertaken into the performance of dust filtration ...

Open Cut

Coal Preparation

Maximising throughput and yield while minimising costs and emissions.

Recently Completed Projects

C21047Seal, Spray And Wash Water Filtration In Coal Preparation Plants

The objective of the study was to undertake a review of seal, spray ...

C21055Advanced Dynamic Control For Paste Thickeners - First Stage For Control Of Complete CHPP’S

Paste thickeners produce significantly higher solids underflow conce...

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

NERDDC

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

NERDDC