Lukinov V.V., Bezruchko K.А., Prykhodchenko O.V., Prykhodchenko S.Y. Estimation of influence of carboniferous stratum structure on density of accumulated anthropogenic resources of coal methane

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Parent Category: Geo-Technical Mechanics, 2018

Category: Geo-Technical Mechanics, 2018, Issue 139

Geoteh. meh. 2018,139, 124-134

DOI: https://doi.org/10.15407/geotm2018.02.124

ESTIMATION OF INFLUENCE OF CARBONIFEROUS STRATUM STRUCTURE ON DENSITY OF ACCUMULATED ANTHROPOGENIC RESOURCES OF COAL METHANE

¹Lukinov V.V., ¹Bezruchko K.А., ¹Prykhodchenko O.V., ¹Prykhodchenko S.Y.

¹Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine

UDC553.981.4.002.68:553.94.076

Language: Ukrainian

Abstract.

Influence of coal-bearing massif structure (quantity of satellite beds, their thickness and distance to the main reservoir) on density of accumulated anthropogenic coal methane was estimated. The structure ratio of the coal-bearing massif for satellite coal beds is calculated by data obtained from geological exploration wells for each layer and presents a sum of the products of each satellite layer thickness multiplied by its distance from the bottom of the worked-out coal layer. Density of accumulated anthropogenic methane resources was determined by calculation method with using geological data and by constructing appropriate maps. The accumulated anthropogenic methane resources were assessed separately for each well in sandstones and satellite coal seams. In order to implement the method, an interval was preliminarily established, which was disturbed by mining operations, with identifying zones with  “fast” and “slow” gas. It is proved on the example of the Donetsk-Makeevka mines in the geological and industrial region that structure of the coal-and-rock massif influences density of accumulated anthropogenic methane resources in the waste areas of existing mines and closed mines: density maps of the accumulated anthropogenic resources and structure coefficient maps of the coal-bearing massif coincide, namely, high, medium and low densities of methane resources. Increased density of accumulated anthropogenic methane resources is caused by increase of coal seam satellite number and thickness, which, in turn, is associated with increased thickness of the coal-bearing suite. It is proven that the most promising areas for searching for anthropogenic gas accumulations are zones, where high values of the structure ratio of the coal-bearing massif and values of density of accumulated anthropogenic methane resources coincide. For the purpose of preliminary predictive assessing and choosing of potentially gas-saturated zones of anthropogenic origin, it is proposed to use maps of the coal-and-rock structure for satellite coal bed.

Keywords: methane, coal mass, anthropogenic resources of methane, coal seam.

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About the authors:

Lukinov Vyacheslav Volodymyrovych, Doctor of Geology-Mineralogical Sciences (D. Sc), Principal Researcher of Geology of Coal Beds at Great Depths, Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine  (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Bezruchko Kostiantyn Andriivych, Doctor of Geology Sciences (D. Sc), Senior Researcher, Head of Department of Geology of Coal Beds at Great Depths, Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine  (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Prykhodchenko Oleksii Vasiliyevich,Ph.D., Candidate of Geological Sciences (Ph.D.), a Researcher in the Department of Geology of Coal Beds at Great Depths, Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine  (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Prykhodchenko Svitlana Yuriyevna,Ph.D., Candidate of Geological Sciences (Ph.D.), Senior Researcher, a Senior Researcher in the Department of Geology of Coal Beds at Great Depths, Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine  (IGTM NASU ), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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