Gas and possible gas hydrates in the permafrost of bovanenkovo gas field, Yamal Peninsula, West Siberia

Evgeny M. Chuvilin, Vladimir S. Yakushev, Elena V. Perlova

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48 Citations (Scopus)

Abstract

Large gas content of upper permafrost layers in the Bovanenkovo gas condensate field area (Yamal Peninsula, West Siberia) was determined during field and laboratory studies of gas blowouts in shallow (depth down to 450 m) monitoring wells. Natural gas (methane presumably) was detected in gas releases from shallow permafrost during well drilling and completion. Disseminated hydrates were identified during drill cores study in laboratory. Gas releases were detected in relatively permeable layers of permafrost (sand, silt) and in zones with reduced mineralization of sediment pore water. Possible mechanism of gas and gas hydrate accumulations formation within permafrost is suggested on the base of the study.

Original languageEnglish
Pages (from-to)215-219
Number of pages5
JournalPolarforschung
Volume68
Issue number1-3
Publication statusPublished - 2000
Externally publishedYes

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