Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)

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Improvement of the Efficiency of Development of Gas Hydrate Deposits

Authors
N.A. Shostak, E.P. Zaporozhets
Corresponding Author
N.A. Shostak
Available Online March 2019.
DOI
10.2991/ciggg-18.2019.50How to use a DOI?
Keywords
gas hydrates; gas-hydrate deposit; natural hydrates; existence conditions of hydrates; gas extraction from hydrates
Abstract

Natural hydrates are one of the existence forms of gas in earth depths. Nowadays about 250 hydrate deposits are known with a total reserves of about 20 peta-cubic meters of natural gas. The technologies of extracting gas from natural hydrates with the help of borehole underground mining of their continental deposits (underground and subwater) differ from the extraction of traditional reserves of natural gas and the collection of bottom sediments. The choice of technology depends on the specific geological and physical conditions of their occurrence. Today have been developed many technologies, the technical essence of which is based on changing the pressure-temperature conditions of hydrate existence by the following methods: depression (lowering reservoir pressure below balanced), thermal (raising temperature of hydrate above balanced), chemical and combined. Based on the analysis of existing and promising technologies, the authors developed a comprehensive technology for extracting gas from hydrates based on the theoretical foundations of their dissociation, methods of calculating optimal temperature and pressure conditions and determining the effectiveness of using chemical methods to minimize the costs of antihydrate reagents (solutions of alcohols, salts, nitrogen compounds).

Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)
Series
Advances in Engineering Research
Publication Date
March 2019
ISBN
10.2991/ciggg-18.2019.50
ISSN
2352-5401
DOI
10.2991/ciggg-18.2019.50How to use a DOI?
Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

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TY  - CONF
AU  - N.A. Shostak
AU  - E.P. Zaporozhets
PY  - 2019/03
DA  - 2019/03
TI  - Improvement of the Efficiency of Development of Gas Hydrate Deposits
BT  - Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)
PB  - Atlantis Press
SP  - 265
EP  - 270
SN  - 2352-5401
UR  - https://doi.org/10.2991/ciggg-18.2019.50
DO  - 10.2991/ciggg-18.2019.50
ID  - Shostak2019/03
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