The Modelling of the occurrence of hydrogen sulphide in coal seams

Gillies, A. D. S., Kizil, M. S., Wu, Hsin Wei and Harvey, T. J. M. (1999). The Modelling of the occurrence of hydrogen sulphide in coal seams. In: Jerry C. Tien, Proceedings of the 8th US Mine Ventilation Symposium. 8th US Mine Ventilation Symposium, Rolla, Missouri, USA, (709-720). 11-17 June 1999.


Author Gillies, A. D. S.
Kizil, M. S.
Wu, Hsin Wei
Harvey, T. J. M.
Title of paper The Modelling of the occurrence of hydrogen sulphide in coal seams
Conference name 8th US Mine Ventilation Symposium
Conference location Rolla, Missouri, USA
Conference dates 11-17 June 1999
Proceedings title Proceedings of the 8th US Mine Ventilation Symposium
Place of Publication Rolla, Missouri
Publisher University of Missouri-Rolla Press
Publication Year 1999
Sub-type Fully published paper
ISBN 1887009043
Editor Jerry C. Tien
Start page 709
End page 720
Total pages 12
Collection year 1999
Language eng
Abstract/Summary Hydrogen Sulphide (H2S) has been encountered within a number of Bowen Basin collieries, Central Queensland, Australia. High concentration occurrence during mining of a longwall panel raises a number of potential problems which demand greater understanding to allow efficient mining while maintaining safe and healthy environmental conditions. Longwall panels at Mine A and Mine B have recently mined through H2S zones. The high H2S zone mined through at Mine A was wide and covering the whole length of the face comparing to the narrow H2S zone which was cutting the panel at 45 degree at Mine B. Longwall panels had been sampled for H2S in pre-mining phases with vertical and inseam exploration boreholes and rib sampling of gateroad development headings. During mining face coal samples were collected in an intensive program and tested in a drum tumbler to determine an “indicated” seam concentration level through contouring that could be used to calculate the concentrations of H2S liberated to the atmosphere. Data was analysed to determine a geostatistical method which would best represent the “indicated” seam concentration level from the given data and the block dimension of the data set. This study discusses the different sampling methods used, selection of the most suitable geostatistical method and the impact of grid size on results of data analysis. Some general observations are made correlating “indicated” seam H2S concentrations from production face sampling with both predictions made from exploration and liberation rates during mining of the longwall panel.
Subjects E1
290701 Mining Engineering
650202 Coal
Keyword Hydrogen Sulphide
H2S
Seam Gases
Mine ventilation
Geostatistical Methods
Q-Index Code E1

Document type: Conference Paper
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Fri, 06 Jun 2008, 15:54:01 EST