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Scientific Review. Geographical Sciences

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COAL QUALITY INDICATORS RESEARCH WITH THE USE OF GEOPHYSICAL METHODS ON THE BASIS OF COAL BED ASH CONTENT

Гриб Н.Н., Кузнецов П.Ю., Сясько А.А., Качаев А.В.
The article touches upon the author’s research on coal quality indicators with the geophysical methods of wells research on the example of coal deposits ash content measuring in the South-Yakut field. The three different developed by the authors approaches determining the ash content of coal with a sufficient degree of reliability and efficiency in measuring the ash content according to geophysical data are presented in the article. The advantages and disadvantages of the developed ash measuring methods are considered. The most universal and effective method of coal quality indicators measuring on the basis of geophysical wells research data is recommended. The authors have worked out the coal quality forecasting model based on Marcovian process mathematical tool and considering the genetic and epigenetic factors of their formation. The results of coal quality indicators measurement, received on laboratory tests and the offered model forecasting result with a good agreement of laboratory and forecasted coal quality indicators, are analyzed (on the bases of Nerungrinsky coal field).