Shallow hydrocarbon gas in the northern Jutland-
& Carbon and hydrogen isotopic compositions and chemical analyses are reported for gas samples collected fe%^jr from 11 gas wells, two gas seeps and 8 water wells in Vendsyssel, northern Jutland, and the island of Læsø in Kattegat, Denmark. The chemical composition shows methane-rich gas, poor i...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.488.7427 2023-05-15T16:13:01+02:00 Shallow hydrocarbon gas in the northern Jutland- The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.488.7427 http://2dgf.dk/xpdf/bull38-01-02-69-76.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.488.7427 http://2dgf.dk/xpdf/bull38-01-02-69-76.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://2dgf.dk/xpdf/bull38-01-02-69-76.pdf text ftciteseerx 2016-01-08T08:20:43Z & Carbon and hydrogen isotopic compositions and chemical analyses are reported for gas samples collected fe%^jr from 11 gas wells, two gas seeps and 8 water wells in Vendsyssel, northern Jutland, and the island of Læsø in Kattegat, Denmark. The chemical composition shows methane-rich gas, poor in heavy gaseous hydrocarbons with a Q+ concentration less than 0.01%. The methane is relatively depleted with respect to the heavy isotopes, i.e. 5"C:-63.6%o to-89.2%o 62H:-177%o to-2288%o. The data fall within the range which is generally considered to characterize microbial gas formed via C02 reduction. There is no evidence of contribution of gas from thermogenic sources. The gas is known from a large number of gas wells and water wells in Upper Pleistocene marine deposits and from submarine gas seeps in the Kattegat. The gas field has a NW to SE areal extent subparallel to the northern limit of the Danish sub-basin and the major fault-systems of the Fennoscandian border zone. This distribution coincides with the occurences of a tectonic depression in the pre-Quaternary surface which primarily is filled in with Eemian and Weichselian marine sediments. The gas most likely derives from degradation of organic material in the Upper Pleistocene marine sediments themselves and is subsequently trapped in restricted reservoirs of sand and gravel. Text Fennoscandian Unknown Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Læsø ENVELOPE(-22.317,-22.317,72.583,72.583) |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
description |
& Carbon and hydrogen isotopic compositions and chemical analyses are reported for gas samples collected fe%^jr from 11 gas wells, two gas seeps and 8 water wells in Vendsyssel, northern Jutland, and the island of Læsø in Kattegat, Denmark. The chemical composition shows methane-rich gas, poor in heavy gaseous hydrocarbons with a Q+ concentration less than 0.01%. The methane is relatively depleted with respect to the heavy isotopes, i.e. 5"C:-63.6%o to-89.2%o 62H:-177%o to-2288%o. The data fall within the range which is generally considered to characterize microbial gas formed via C02 reduction. There is no evidence of contribution of gas from thermogenic sources. The gas is known from a large number of gas wells and water wells in Upper Pleistocene marine deposits and from submarine gas seeps in the Kattegat. The gas field has a NW to SE areal extent subparallel to the northern limit of the Danish sub-basin and the major fault-systems of the Fennoscandian border zone. This distribution coincides with the occurences of a tectonic depression in the pre-Quaternary surface which primarily is filled in with Eemian and Weichselian marine sediments. The gas most likely derives from degradation of organic material in the Upper Pleistocene marine sediments themselves and is subsequently trapped in restricted reservoirs of sand and gravel. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
Shallow hydrocarbon gas in the northern Jutland- |
spellingShingle |
Shallow hydrocarbon gas in the northern Jutland- |
title_short |
Shallow hydrocarbon gas in the northern Jutland- |
title_full |
Shallow hydrocarbon gas in the northern Jutland- |
title_fullStr |
Shallow hydrocarbon gas in the northern Jutland- |
title_full_unstemmed |
Shallow hydrocarbon gas in the northern Jutland- |
title_sort |
shallow hydrocarbon gas in the northern jutland- |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.488.7427 http://2dgf.dk/xpdf/bull38-01-02-69-76.pdf |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) ENVELOPE(-22.317,-22.317,72.583,72.583) |
geographic |
Kattegat Læsø |
geographic_facet |
Kattegat Læsø |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_source |
http://2dgf.dk/xpdf/bull38-01-02-69-76.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.488.7427 http://2dgf.dk/xpdf/bull38-01-02-69-76.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1765998617841106944 |