Browsing by Author "Sai, Kateryna"
Now showing items 1-11 of 11
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Analysis of the inefficient waste rock flow movements in the coal mine technological scheme
Petlovanyi, Mykhailo; Sai, Kateryna; Malashkevych, Dmytro (2021) -
Concept of the journal “Mining of Mineral Deposits” Of the National Mining University”
Bondarenko, V; Lozynskyi, V; Kovalevska, I; Sai, K; Vvedenska, T (National Mining University, 2016-03-30)This article describes the present concept of the journal “Mining of Mineral Deposits”. The introduction features information about the Underground Mining Department where the journal was created. It also focuses on a short ... -
Granulometric composition research of mine rocks as a material for backfilling the mined-out area in coal mines
Petlovanyi, Mykhailo; Malashkevych, Dmytro; Sai, Kateryna; Bulat, Ievgeniia; Popovych, Vasyl (Dnipro University of Technology, 2021-12-30)Purpose. Determination of the granulometric characteristics and loosening coefficient of mine rocks formed during stope operations from undercutting the bottom rocks as a potential backfill material based on a set of mine ... -
Granulometric composition research of mine rocks as a material for backfilling the mined-out area in coal mines
Petlovanyi, Mykhailo; Malashkevych, Dmytro; Sai, Kateryna; Bulat, Ievgeniia; Popovych, Vasyl (2021)Purpose. Determination of the granulometric characteristics and loosening coefficient of mine rocks formed during stope operations from undercutting the bottom rocks as a potential backfill material based on a set of mine ... -
Investigation of the influence of polyelectrolytes hydrodynamic properties on the hydrate formation process
Bondarenko, Volodymyr; Svietkina, Olena; Sai, Kateryna; Klymenko, Vasyl (2018)One of the most perspective non-traditional sources of hydrocarbon raw materials and energy is gas hydrates (GH), which stimulates their large-scale study in many laboratories and scientific ... -
Predicting the producing well stability in the place of its curving at the underground coal seams gasification
Petlovanyi, Mykhailo; Lozynskyi, Vasyl; Saik, Pavlo; Sai, Kateryna (2019)The relevant issues have been studied of ensuring the stability of producing wells in the place of their curving when uncovering the mining extracted area for the underground gas generator operation. It is emphasized that ... -
Preliminary assessment of the content of valuable components in coal mine waste dumps
Petlovanyi, Mykhailo; Sai, Kateryna (Видавництво НТУ «ДП», 2020)Study of the mineralogical and chemical composition of waste rocks from the Western Donbass coal mines dumps to establish the presence of valuable components and their subsequent industrial development. The present work ... -
Prospects of utilization mining methane on the basis of gas hydrate technologies
Petlovanyi, Mykhailo; Sai, Kateryna; Prokopenko, Kostiantyn (2019)The peculiarities of the innovative approach to the utilization of coal mine methane, which is extracted by significant volumes due to the technological process of underground development of coal-gas fields, are revealed. ... -
Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams
Petlovanyi, Mykhailo; Malashkevych, Dmytro; Sai, Kateryna; Zubko, Serhii (National Mining University, 2020-12-30)Purpose. Study the movement of waste rock flows in the coal mine technological system and determine the balance of rocks and underground cavities formation from the perspective of the current mining operations development ... -
SCIENTIFIC SUBSTANTIATION OF ENERGY-EFFICIENT AND LOW- WASTE TECHNOLOGY OF CARBOHYDRATE RESOURCES DEVELOPMENT
SAIK, Pavlo; PETLOVANYI, Мykhailo; LOZYNSKYI, Vasyl; SAI, Kateryna (2018)Scientific substantiation and development of energy-efficient low- waste technology for hydrocarbon raw materials extraction by changing its aggregate state by physico-chemical interference, taking ... -
Stydy of the stress state in curving section of the exploitation well at the underground coal gasification
Petlovanyi, Mykhailo; Lozynskyi, Vasyl; Saik, Pavlo; Sai, Kateryna (2019)