Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea
The role of faults in petroleum systems is important especially in cases where the hydrocarbon accumulation in the prospect or field is fault-dependent. Usually, the properties of faults in petroleum systems are considered as static through time. We present a case study from the southern Halten terr...
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American Association of Petroleum Geologists
2018
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Online Access: | https://oceanrep.geomar.de/id/eprint/41126/ https://oceanrep.geomar.de/id/eprint/41126/1/Iyer.pdf http://archives.datapages.com/data/bulletns/aop/2017-05-22/aapgbltn17017aop.html https://doi.org/10.1306/0208171616417017 |
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ftoceanrep:oai:oceanrep.geomar.de:41126 2023-05-15T17:47:02+02:00 Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea Iyer, Karthik Schmid, Daniel W. Rüpke, Lars Skeie, Jon Erik Karlsen, Frode Hartz, H. 2018-04 text https://oceanrep.geomar.de/id/eprint/41126/ https://oceanrep.geomar.de/id/eprint/41126/1/Iyer.pdf http://archives.datapages.com/data/bulletns/aop/2017-05-22/aapgbltn17017aop.html https://doi.org/10.1306/0208171616417017 en eng American Association of Petroleum Geologists https://oceanrep.geomar.de/id/eprint/41126/1/Iyer.pdf Iyer, K. , Schmid, D. W., Rüpke, L. , Skeie, J. E., Karlsen, F. and Hartz, H. (2018) Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea. AAPG Bulletin, 102 (4). pp. 671-689. DOI 10.1306/0208171616417017 <https://doi.org/10.1306/0208171616417017>. doi:10.1306/0208171616417017 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2018 ftoceanrep https://doi.org/10.1306/0208171616417017 2023-04-07T15:37:21Z The role of faults in petroleum systems is important especially in cases where the hydrocarbon accumulation in the prospect or field is fault-dependent. Usually, the properties of faults in petroleum systems are considered as static through time. We present a case study from the southern Halten terrace in the Norwegian Sea which highlights not only the importance of faults but also that the evolution of fault properties is key in determining the correct charge in the fields in the region. The best-fit model shows that in order to match observations the petroleum system requires at least two stages of hydrocarbon migration during which fault properties change from partially to completely sealing with respect to hydrocarbon flow across them. The most likely process that results in fault sealing is cementation due to increasing temperatures caused by the rapid burial during the Quaternary glaciations. This results in the most accurate charge of accumulations in the region while also explaining other observations such as present-day pressure compartmentalization and biodegradation. The best-fit model also implements the source rock thermal evolution based on a 2D basin model that improves the match of fluid GOR in the accumulation to the measured values. This study highlights the importance of multi-scale, multi-physics and multi-stage models in order to obtain results consistent with present day observations. Article in Journal/Newspaper Norwegian Sea OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Halten ENVELOPE(8.017,8.017,63.001,63.001) Norwegian Sea AAPG Bulletin 102 04 671 689 |
institution |
Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
The role of faults in petroleum systems is important especially in cases where the hydrocarbon accumulation in the prospect or field is fault-dependent. Usually, the properties of faults in petroleum systems are considered as static through time. We present a case study from the southern Halten terrace in the Norwegian Sea which highlights not only the importance of faults but also that the evolution of fault properties is key in determining the correct charge in the fields in the region. The best-fit model shows that in order to match observations the petroleum system requires at least two stages of hydrocarbon migration during which fault properties change from partially to completely sealing with respect to hydrocarbon flow across them. The most likely process that results in fault sealing is cementation due to increasing temperatures caused by the rapid burial during the Quaternary glaciations. This results in the most accurate charge of accumulations in the region while also explaining other observations such as present-day pressure compartmentalization and biodegradation. The best-fit model also implements the source rock thermal evolution based on a 2D basin model that improves the match of fluid GOR in the accumulation to the measured values. This study highlights the importance of multi-scale, multi-physics and multi-stage models in order to obtain results consistent with present day observations. |
format |
Article in Journal/Newspaper |
author |
Iyer, Karthik Schmid, Daniel W. Rüpke, Lars Skeie, Jon Erik Karlsen, Frode Hartz, H. |
spellingShingle |
Iyer, Karthik Schmid, Daniel W. Rüpke, Lars Skeie, Jon Erik Karlsen, Frode Hartz, H. Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea |
author_facet |
Iyer, Karthik Schmid, Daniel W. Rüpke, Lars Skeie, Jon Erik Karlsen, Frode Hartz, H. |
author_sort |
Iyer, Karthik |
title |
Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea |
title_short |
Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea |
title_full |
Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea |
title_fullStr |
Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea |
title_full_unstemmed |
Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea |
title_sort |
importance of evolving fault seals on petroleum systems: southern halten terrace, norwegian sea |
publisher |
American Association of Petroleum Geologists |
publishDate |
2018 |
url |
https://oceanrep.geomar.de/id/eprint/41126/ https://oceanrep.geomar.de/id/eprint/41126/1/Iyer.pdf http://archives.datapages.com/data/bulletns/aop/2017-05-22/aapgbltn17017aop.html https://doi.org/10.1306/0208171616417017 |
long_lat |
ENVELOPE(8.017,8.017,63.001,63.001) |
geographic |
Halten Norwegian Sea |
geographic_facet |
Halten Norwegian Sea |
genre |
Norwegian Sea |
genre_facet |
Norwegian Sea |
op_relation |
https://oceanrep.geomar.de/id/eprint/41126/1/Iyer.pdf Iyer, K. , Schmid, D. W., Rüpke, L. , Skeie, J. E., Karlsen, F. and Hartz, H. (2018) Importance of evolving fault seals on petroleum systems: Southern Halten Terrace, Norwegian Sea. AAPG Bulletin, 102 (4). pp. 671-689. DOI 10.1306/0208171616417017 <https://doi.org/10.1306/0208171616417017>. doi:10.1306/0208171616417017 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1306/0208171616417017 |
container_title |
AAPG Bulletin |
container_volume |
102 |
container_issue |
04 |
container_start_page |
671 |
op_container_end_page |
689 |
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1766151282357174272 |