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Application of spectrometric nuclear borehole logging for reserves estimation and mine planning at Callide coalfields open-cut mine

机译:光谱核孔测井在Callide煤田露天矿储量估算和矿山规划中的应用

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摘要

Nuclear borehole logging is practically the only technique that has the capacity for providing quantitative in-situ coal quality information in real time. The SIROLOG gamma-gamma and neutron-gamma (PGNAA) borehole logging procedures have been providing vital characteristics of the coal seams at Callide coalfields since 1993. Together with an accurate delineation of coal seams, the SIROLOG procedures estimate ash content, density and some ash constituents accurately enough for relatively inexpensive rotary chip holes to be accepted as points of observation in calculations of reserves.
机译:实际上,核孔测井是唯一能够实时提供定量原位煤质量信息的技术。自1993年以来,SIROLOG伽马-γ和中子伽马(PGNAA)钻孔测井程序就提供了Callide煤田煤层的重要特征。连同对煤层的精确描述,SIROLOG程序可估算出灰分,密度和一些灰分足够精确的成分,可以接受相对便宜的旋转切屑孔作为储量计算中的观察点。

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