Hammerfest Basin Composite Tectono-Sedimentary Element
The Hammerfest Basin is an E -W trending graben located between the Loppa High and the Finnmark Platform in the southern part of the Norwegian Barents Sea. Mainly siliciclastic strata of Carboniferous to Cenozoic age cover the Caledonian basement and have a total estimated thickness of 5-8 km. The b...
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Online Access: | https://hdl.handle.net/10037/24575 https://doi.org/10.1144/M57-2017-23 |
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ftunivtroemsoe:oai:munin.uit.no:10037/24575 2023-05-15T15:38:53+02:00 Hammerfest Basin Composite Tectono-Sedimentary Element Henriksen, Erik Kvamme, L. Rydningen, Tom Arne 2021-06-21 https://hdl.handle.net/10037/24575 https://doi.org/10.1144/M57-2017-23 eng eng Geological Society Geological Society of London Memoirs Henriksen E, Kvamme, Rydningen TA. Hammerfest Basin Composite Tectono-Sedimentary Element. Geological Society of London Memoirs. 2021;57 FRIDAID 1902318 doi:10.1144/M57-2017-23 0435-4052 2041-4722 https://hdl.handle.net/10037/24575 embargoedAccess Copyright 2021 The Author(s) Journal article Tidsskriftartikkel Peer reviewed acceptedVersion 2021 ftunivtroemsoe https://doi.org/10.1144/M57-2017-23 2022-03-30T22:58:18Z The Hammerfest Basin is an E -W trending graben located between the Loppa High and the Finnmark Platform in the southern part of the Norwegian Barents Sea. Mainly siliciclastic strata of Carboniferous to Cenozoic age cover the Caledonian basement and have a total estimated thickness of 5-8 km. The basin evolved through several tectonic phases: the Carboniferous rifting, Late Jurassic rifting, the opening of the Atlantic Ocean, Oligocene reorganisation of plate movements and postglacial isostatic rebound. An E-W trending dome in the centre of the basin developed during the main extensional tectonic event in Late Jurassic. Horst structures represent the main hydrocarbon traps. Erosional channels on the flanks of the basin represent entry points for Lower Cretaceous sands. For the rest of the Cretaceous and Cenozoic intervals no significant reservoir sands are expected. The first exploration well in the Barents Sea in 1980 was located in the Hammerfest basin, and by 2019 a total of 45 wells had been drilled in the basin where 34 are classified as exploration wells. The result is 18 oil and gas discoveries, which gives a discovery rate of 53%. Two fields are now in production: the Snøhvit gas-condensate fields and the Goliat oil field. A total of 340 Msm 3 (2140 Mbbl) recoverable oil equivalents have been discovered. For the middle Jurassic Play, the yet-to-find potential may be around 50 Msm3, distributed in several small structures in the basin. Following the oil discovery in the Middle Triassic interval in the Goliat structure, and because several of the previously drilled structures only penetrated the Jurassic and the uppermost Triassic section, considerable exploration potential may exist in the deeper Triassic interval in structures with the best reservoir facies. Stratigraphic traps of Cretaceous age may have a moderate petroleum potential, with excellent reservoirs encountered along the flank of the basin. Exploration potential may also exist in Upper Permian sandstones along the southern and eastern flanks of the basin. However, in large parts of the basin, the remaining potential is in the deep structures and hence is gas prone. Article in Journal/Newspaper Barents Sea Finnmark Goliat Hammerfest Hammerfest Basin Loppa Snøhvit Finnmark University of Tromsø: Munin Open Research Archive Barents Sea Loppa ENVELOPE(22.351,22.351,70.240,70.240) Geological Society, London, Memoirs M57-2017-23 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
The Hammerfest Basin is an E -W trending graben located between the Loppa High and the Finnmark Platform in the southern part of the Norwegian Barents Sea. Mainly siliciclastic strata of Carboniferous to Cenozoic age cover the Caledonian basement and have a total estimated thickness of 5-8 km. The basin evolved through several tectonic phases: the Carboniferous rifting, Late Jurassic rifting, the opening of the Atlantic Ocean, Oligocene reorganisation of plate movements and postglacial isostatic rebound. An E-W trending dome in the centre of the basin developed during the main extensional tectonic event in Late Jurassic. Horst structures represent the main hydrocarbon traps. Erosional channels on the flanks of the basin represent entry points for Lower Cretaceous sands. For the rest of the Cretaceous and Cenozoic intervals no significant reservoir sands are expected. The first exploration well in the Barents Sea in 1980 was located in the Hammerfest basin, and by 2019 a total of 45 wells had been drilled in the basin where 34 are classified as exploration wells. The result is 18 oil and gas discoveries, which gives a discovery rate of 53%. Two fields are now in production: the Snøhvit gas-condensate fields and the Goliat oil field. A total of 340 Msm 3 (2140 Mbbl) recoverable oil equivalents have been discovered. For the middle Jurassic Play, the yet-to-find potential may be around 50 Msm3, distributed in several small structures in the basin. Following the oil discovery in the Middle Triassic interval in the Goliat structure, and because several of the previously drilled structures only penetrated the Jurassic and the uppermost Triassic section, considerable exploration potential may exist in the deeper Triassic interval in structures with the best reservoir facies. Stratigraphic traps of Cretaceous age may have a moderate petroleum potential, with excellent reservoirs encountered along the flank of the basin. Exploration potential may also exist in Upper Permian sandstones along the southern and eastern flanks of the basin. However, in large parts of the basin, the remaining potential is in the deep structures and hence is gas prone. |
format |
Article in Journal/Newspaper |
author |
Henriksen, Erik Kvamme, L. Rydningen, Tom Arne |
spellingShingle |
Henriksen, Erik Kvamme, L. Rydningen, Tom Arne Hammerfest Basin Composite Tectono-Sedimentary Element |
author_facet |
Henriksen, Erik Kvamme, L. Rydningen, Tom Arne |
author_sort |
Henriksen, Erik |
title |
Hammerfest Basin Composite Tectono-Sedimentary Element |
title_short |
Hammerfest Basin Composite Tectono-Sedimentary Element |
title_full |
Hammerfest Basin Composite Tectono-Sedimentary Element |
title_fullStr |
Hammerfest Basin Composite Tectono-Sedimentary Element |
title_full_unstemmed |
Hammerfest Basin Composite Tectono-Sedimentary Element |
title_sort |
hammerfest basin composite tectono-sedimentary element |
publisher |
Geological Society |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/24575 https://doi.org/10.1144/M57-2017-23 |
long_lat |
ENVELOPE(22.351,22.351,70.240,70.240) |
geographic |
Barents Sea Loppa |
geographic_facet |
Barents Sea Loppa |
genre |
Barents Sea Finnmark Goliat Hammerfest Hammerfest Basin Loppa Snøhvit Finnmark |
genre_facet |
Barents Sea Finnmark Goliat Hammerfest Hammerfest Basin Loppa Snøhvit Finnmark |
op_relation |
Geological Society of London Memoirs Henriksen E, Kvamme, Rydningen TA. Hammerfest Basin Composite Tectono-Sedimentary Element. Geological Society of London Memoirs. 2021;57 FRIDAID 1902318 doi:10.1144/M57-2017-23 0435-4052 2041-4722 https://hdl.handle.net/10037/24575 |
op_rights |
embargoedAccess Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.1144/M57-2017-23 |
container_title |
Geological Society, London, Memoirs |
container_start_page |
M57-2017-23 |
_version_ |
1766370292844724224 |