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Long-Hole Drilling for Gas Emission Control at Appin Colliery NSW, Australia
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Citation (Style = APA)
Kelly M, ; Saghafi A, ; Williams R J, (1988). Long-Hole Drilling for Gas Emission Control at Appin Colliery NSW, Australia.
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SpreadSheed (CSV)
Kelly M, ; Saghafi A, ; Williams R J, (1988). Long-Hole Drilling for Gas Emission Control at Appin Colliery NSW, Australia.
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: The Australasian Institute of Mining and Metallurgy
Pages: 0
Publication Date:
Jan 1, 1988
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Abstract
Abstract
| A two year program of research into the feasibility of long-hole drilling for improved gas emission control has been undertaken at Appin Colliery. State of the art equipment was employed involving cableless electronic surveying and down-hole motor drilling. The project involved the drilling of 1000 m long, in-seam boreholes in the Bulli seam and boreholes of similar length drilled cross measure and then in-seam along the underlying Balgownie seam. A new concept for gas drainage was defined, employing long-holes for both predrainage and post drainage. |
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