You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway.
From 2007 to 2015, eight wells were drilled and fully cored to test the feasibility of storing CO2 emitted from the coal-fueled power plant in Longyearbyen, Svalbard. The drilling campaign identified three water-bearing sandstone aquifers; i) a lower aquifer in Upper Triassic strata; ii) a middle aq...
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ftoslouniv:oai:www.duo.uio.no:10852/76884 2023-05-15T17:08:28+02:00 You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. Olaussen, Snorre Senger, Kim Braathen, Alvar Grundvåg, Sten-Andreas Mørk, Atle 2019-11-19T11:24:35Z http://hdl.handle.net/10852/76884 http://urn.nb.no/URN:NBN:no-80007 https://doi.org/10.17850/njg008 EN eng NFR/228107 NFR/257579 http://urn.nb.no/URN:NBN:no-80007 Olaussen, Snorre Senger, Kim Braathen, Alvar Grundvåg, Sten-Andreas Mørk, Atle . You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. Norwegian Journal of Geology. 2019, 99(2), 157-187 http://hdl.handle.net/10852/76884 1749286 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Norwegian Journal of Geology&rft.volume=99&rft.spage=157&rft.date=2019 Norwegian Journal of Geology 99 2 157 187 https://doi.org/10.17850/njg008 URN:NBN:no-80007 Fulltext https://www.duo.uio.no/bitstream/handle/10852/76884/2/NJG_Vol99_Nr2_Art1_Olaussen_etal.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 2387-5844 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.17850/njg008 2020-06-21T08:54:40Z From 2007 to 2015, eight wells were drilled and fully cored to test the feasibility of storing CO2 emitted from the coal-fueled power plant in Longyearbyen, Svalbard. The drilling campaign identified three water-bearing sandstone aquifers; i) a lower aquifer in Upper Triassic strata; ii) a middle aquifer in Upper Triassic to Middle Jurassic; and iii) an upper aquifer in Lower Cretaceous strata. Only the two former are regarded as potential CO2 storage units. Both units are unconventional reservoirs (storage units) consisting of fractured, low-porosity and low-permeability sandstones. The storage units are capped by a c. 400 m-thick Middle Jurassic to Lower Cretaceous mudstone-dominated succession, which acts as an efficient top seal. In addition, a c. 120 m-thick zone of permafrost provides an additional seal. Apart from characterising the CO2 storage and cap-rock system, the drilling resulted in several unexpected results. These include: (a) the detection of severe underpressure of approximately 50 bar in the two storage units, (b) the discovery of gravity-flow deposits attributed to a hitherto unknown Hauterivian clastic wedge, and (c) the detection of producible thermogenic shale gas at a depth of 640 to 700 m. Moreover, core and wireline data from the wells combined with correlation to equivalent strata in nearby outcrops provide new insights into the age and depositional evolution of the succession. Thus, the data obtained from this project contributes to the regional stratigraphic understanding of the Mesozoic succession in Svalbard and the northern Barents Shelf. Until now, nearly 70 papers have been published in international peer-reviewed journals using data from or part of the Longyearbyen CO2 Laboratory. In addition, 13 PhD candidates and 27 master students, linked to the project or using obtained data from the project, have graduated. The main achievement of our studies is that we have shown that unconventional fractured reservoirs are suitable for storing CO2. Article in Journal/Newspaper Longyearbyen permafrost Svalbard wedge* Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Longyearbyen Norway Svalbard Norwegian Journal of Geology |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
From 2007 to 2015, eight wells were drilled and fully cored to test the feasibility of storing CO2 emitted from the coal-fueled power plant in Longyearbyen, Svalbard. The drilling campaign identified three water-bearing sandstone aquifers; i) a lower aquifer in Upper Triassic strata; ii) a middle aquifer in Upper Triassic to Middle Jurassic; and iii) an upper aquifer in Lower Cretaceous strata. Only the two former are regarded as potential CO2 storage units. Both units are unconventional reservoirs (storage units) consisting of fractured, low-porosity and low-permeability sandstones. The storage units are capped by a c. 400 m-thick Middle Jurassic to Lower Cretaceous mudstone-dominated succession, which acts as an efficient top seal. In addition, a c. 120 m-thick zone of permafrost provides an additional seal. Apart from characterising the CO2 storage and cap-rock system, the drilling resulted in several unexpected results. These include: (a) the detection of severe underpressure of approximately 50 bar in the two storage units, (b) the discovery of gravity-flow deposits attributed to a hitherto unknown Hauterivian clastic wedge, and (c) the detection of producible thermogenic shale gas at a depth of 640 to 700 m. Moreover, core and wireline data from the wells combined with correlation to equivalent strata in nearby outcrops provide new insights into the age and depositional evolution of the succession. Thus, the data obtained from this project contributes to the regional stratigraphic understanding of the Mesozoic succession in Svalbard and the northern Barents Shelf. Until now, nearly 70 papers have been published in international peer-reviewed journals using data from or part of the Longyearbyen CO2 Laboratory. In addition, 13 PhD candidates and 27 master students, linked to the project or using obtained data from the project, have graduated. The main achievement of our studies is that we have shown that unconventional fractured reservoirs are suitable for storing CO2. |
format |
Article in Journal/Newspaper |
author |
Olaussen, Snorre Senger, Kim Braathen, Alvar Grundvåg, Sten-Andreas Mørk, Atle |
spellingShingle |
Olaussen, Snorre Senger, Kim Braathen, Alvar Grundvåg, Sten-Andreas Mørk, Atle You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. |
author_facet |
Olaussen, Snorre Senger, Kim Braathen, Alvar Grundvåg, Sten-Andreas Mørk, Atle |
author_sort |
Olaussen, Snorre |
title |
You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. |
title_short |
You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. |
title_full |
You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. |
title_fullStr |
You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. |
title_full_unstemmed |
You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. |
title_sort |
you learn as long as you drill; research synthesis from the longyearbyen co2 laboratory, svalbard, norway. |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/76884 http://urn.nb.no/URN:NBN:no-80007 https://doi.org/10.17850/njg008 |
geographic |
Longyearbyen Norway Svalbard |
geographic_facet |
Longyearbyen Norway Svalbard |
genre |
Longyearbyen permafrost Svalbard wedge* |
genre_facet |
Longyearbyen permafrost Svalbard wedge* |
op_source |
2387-5844 |
op_relation |
NFR/228107 NFR/257579 http://urn.nb.no/URN:NBN:no-80007 Olaussen, Snorre Senger, Kim Braathen, Alvar Grundvåg, Sten-Andreas Mørk, Atle . You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. Norwegian Journal of Geology. 2019, 99(2), 157-187 http://hdl.handle.net/10852/76884 1749286 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Norwegian Journal of Geology&rft.volume=99&rft.spage=157&rft.date=2019 Norwegian Journal of Geology 99 2 157 187 https://doi.org/10.17850/njg008 URN:NBN:no-80007 Fulltext https://www.duo.uio.no/bitstream/handle/10852/76884/2/NJG_Vol99_Nr2_Art1_Olaussen_etal.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17850/njg008 |
container_title |
Norwegian Journal of Geology |
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1766064234770202624 |