Research into Dissociation Zones of Gas Hydrate Deposits with a Heterogeneous Structure in the Black Sea

Oleg Bazaluk, Kateryna Sai, Vasyl Lozynskyi, Mykhailo Petlovanyi and Pavlo Saik
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Oleg Bazaluk: Belt and Road Initiative Centre for Chinese-European Studies, Guangdong University of Petrochemical Technology, Maoming 525000, China
Kateryna Sai: Department of Mining Engineering and Education, Dnipro University of Technology, 49005 Dnipro, Ukraine
Vasyl Lozynskyi: Department of Mining Engineering and Education, Dnipro University of Technology, 49005 Dnipro, Ukraine
Mykhailo Petlovanyi: Department of Mining Engineering and Education, Dnipro University of Technology, 49005 Dnipro, Ukraine
Pavlo Saik: Department of Mining Engineering and Education, Dnipro University of Technology, 49005 Dnipro, Ukraine

Energies, 2021, vol. 14, issue 5, 1-24

Abstract: Ukraine is an energy-dependent country, with less that 50% of its energy consumption fulfilled by its own resources. Natural gas is of paramount importance, especially for industry and society. Therefore, there is an urgent need to search for alternative and potential energy sources, such as gas hydrate deposits in the Black Sea, which can reduce the consumption of imported gas. It is necessary to refine the process parameters of the dissociation of gas hydrate deposits with a heterogeneous structure. The analyzed known geological–geophysical data devoted to the study of the offshore area and the seabed give grounds to assert the existence of a significant amount of hydrate deposits in the Black Sea. An integrated methodological approach is applied, which consists of the development of algorithms for analytical and laboratory studies of gas volumes obtained during the dissociation of deposits with a heterogeneous structure. These data are used for the computer modelling of the dissociation zone in the Surfer-8.0 software package based on the data interpolation method, which uses three methods for calculating the volumes of modelling bodies. A 3D grid-visualization of the studied part of the gas hydrate deposit has been developed. The dissociation zone parameters of gas hydrate deposits with different shares of rock intercalation, that is, the minimum and maximum diameters, have been determined, and the potentially recoverable gas volumes have been assessed. The effective time of the process of gas hydrate deposit dissociation has been substantiated. The obtained research results of the dissociation process of gas hydrate deposits can be used in the development of new technological schemes for gas recovery from the deep-water Black Sea area.

Keywords: gas hydrate; methane; rock; dissociation process; Black Sea; Ukraine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

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