Selecting the method of gas hydrate deposits development in terms of the regularities of their formation

Maksymova, E.

doi:10.15407/mining12.01.103

Cited by 8 publications

(7 citation statements)

References 14 publications

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“…When conducting this research, which is based on a large number of preliminary experimental studies, we tried to obtain the optimal parameters of the heat-transfer agent and, most importantly, to experimentally confirm the stability of the dissociation process depending on the number of rock intercalations in laboratory conditions. Moreover, the main factor is precisely the dissociation process stability of the deposit, since an excess of the heat-transfer agent or an increase in its temperature creates an uncontrolled process of gas release and on an industrial scale can have dangerous and harmful consequences [128][129][130][131][132][133].…”

Section: Experimental Studymentioning

confidence: 99%

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

et al. 2021

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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.

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Section: Experimental Studymentioning

confidence: 99%

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

et al. 2021

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“…That allows reducing pressure in a gas generator and energy consumption correspondently at the expense of interphase heat exchange. Apart from generating the gradient which guarantees the process of hydrate formation within a gas-water system, it is required to provide heat elimination of hydrate formation being equal to 450 kJ/kg in case of methane hydrate [6,16,18,19].…”

Section: Theoretical Prerequisites Of Gas Hydrates Formationmentioning

confidence: 99%

Physical and Chemical Methods of Methane Utilization in Ukrainian Coal Mines

Maksymova

Ovchynnikov

Lysenko

et al. 2018

SSP

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Associated gas of coal and minor oil deposits emitting into the atmosphere is considered to be valuable energy resource requiring proper utilization both from the economic and environmental viewpoints. It is proposed to develop mobile gas-hydrate plants to utilize associated gas of mines and minor oil and gas deposits. Hydrogenerating technology to collect and utilize coalmine methane immediately at the degassing wells of coal mines and oil extraction platform has been developed. Thermobaric parameters along with physical and chemical effect upon hydrate-formation process have been substantiated and selected. Certain degree of mechanical impact as well as magnetic field and ultrasound influence upon the process of hydrate formation has been proved. The technology will make it possible to obtain end product within the degassing area for its further transportation to consumers at long distances.

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“…Approximately 98% of them are concentrated in the World Ocean at depths ranging from 200 to 700 m, and in the bottom sediments with thickness of 400 -800 m. Hence, their development does not require drilling of the ultra-deep wells. Gas hydrate reserves in the world are reported to vary widely within the range between 10 15 -10 18 m 3 (Birchwood et al, 2010;Maksymova, 2018). The amount of methane gas within these NGHs is estimated to be 2.1•10 16 m 3 , which is more than all carbonaceous fuel reserves of the planet (Boswell & Collett, 2011).…”

Section: Development the Technology Of The Conversion Of Extracted Natural Gas Of Marine Deposits Into Gas Hydrate Formmentioning

confidence: 99%

Use of alternative energy sources to improve the efficiency of natural gas hydrate technology for gas offshore deposits transportation

Pedchenko¹,

Niemchenko²,

Pedchenko³

et al. 2018

Min. miner. depos.

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Purpose. Justification of the principal schemes acceptable for the existing level of technology, methods of extraction and transportation of offshore natural gas deposits. Increase in their efficiency by maximum reduction of energy consumption resulting from complex considerations of thermal and physical properties and parameters of the system components interaction. The work is focused on the improvement of borehole products preparation system according to the gas hydrate technology during the development of offshore gas fields. The research objects were thermodynamic parameters of the system "gas -water -gas hydrate" in a vertical pipeline under nonadiabatic conditions.Methods. Analysis and generalization of the results obtained from the complex experimental research. Mathematical modeling and software development.Findings. The technology of gas transfer into a gas hydrate form without energy consumption for phase transition was proposed. The expediency of gas deposits development by its binding into the gas hydrate form during passage through the sea layer in the appropriate thermobaric conditions was substantiated. Mechanism of the alternative energy sources use for the production of gas hydrates, as the most energy-consuming process in technology of transporting gases in the form of gas hydrates, was grounded.Originality. The principle possibility of binding the extracted gas into the gas hydrate form due to the energy of the productive layer and salt water was estimated. A mathematical model and software product for the description of the hydrate formation process in the presence of excess water in a vertical pipe under non-adiabatic conditions were developed.Practical implications. The proposed gas hydrate technology creates important prerequisites for the development of small-and medium remote gas deposits, improves the efficiency and competitiveness of technology for marine transportation of natural gas in hydrate form.

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Selecting the method of gas hydrate deposits development in terms of the regularities of their formation

Cited by 8 publications

References 14 publications

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

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

Physical and Chemical Methods of Methane Utilization in Ukrainian Coal Mines

Use of alternative energy sources to improve the efficiency of natural gas hydrate technology for gas offshore deposits transportation

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