Evidence of Gas Emissions from Permafrost in the Russian Arctic

Chuvilin, E.; Ekimova, V.; Davletshina, D.; Sokolova, N.; Bukhanov, B.

Авторы: Chuvilin Evgeny, Ekimova Valentina, Davletshina Dinara, Sokolova Natalia, Bukhanov Boris
Журнал: Geosciences (Switzerland)
Том: 10
Номер: 383
Год издания: 2020
Издательство: MDPI Publishing
Местоположение издательства: Basel, Switzerland, Switzerland
DOI: 10.3390/geosciences10100383
Аннотация: The active emission of gas (mainly methane) from terrestrial and subsea permafrost in the Russian Arctic has been confirmed by ample evidence. In this paper, a generalization and some systematization of gas manifestations recorded in the Russian Arctic is carried out. The publisheddata on most typical gas emission cases have been summarized in a table and illustrated by a map.The tabulated data include location, signatures, and possible sources of each gas show, with respective references. All events of onshore and shelf gas release are divided into natural and man-caused, and the natural ones are further classified as venting from lakes or explosive emissions in dryland conditions that produce craters on the surface. Among natural gas shows on land, special attention is paid to the emission of natural gas from Arctic lakes, as well as gas emissions with craters formation.In addition, a description of the observed man-caused gas manifestations associated with the drilling of geotechnical and production wells in the Arctic region is given. The reported evidence demonstrates the eect of permafrost degradation on gas release, especially in oil and gas fields.
Добавил в систему: Чувилин Евгений Михайлович

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