The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea
Five seismic interpretation experiments were conducted on an area of interest containing a fault relay in the Snøhvit field, Barents Sea, Norway, to understand how the interpretation method impacts the analysis of fault and horizon morphologies, fault lengths, and throw. The resulting horizon and fa...
Published in: | Solid Earth |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2021
|
Subjects: | |
Online Access: | https://hdl.handle.net/11250/3050830 https://doi.org/10.5194/se-12-741-2021 |
id |
ftunivstavanger:oai:uis.brage.unit.no:11250/3050830 |
---|---|
record_format |
openpolar |
spelling |
ftunivstavanger:oai:uis.brage.unit.no:11250/3050830 2023-06-11T04:10:33+02:00 The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea Cunningham, Jennifer Elizabeth Cardozo, Nestor Townsend, Christopher Callow, Richard H. T. 2021-12-08T15:39:36Z application/pdf https://hdl.handle.net/11250/3050830 https://doi.org/10.5194/se-12-741-2021 eng eng Copernicus Publications Cunningham, J. E., Cardozo, N., Townsend, C., & Callow, R. H. (2021). The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea. Solid Earth, 12(3), 741-764. urn:issn:1869-9510 https://hdl.handle.net/11250/3050830 https://doi.org/10.5194/se-12-741-2021 cristin:1966335 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no The authors 741-764 12 Solid Earth (SE) VDP::Teknologi: 500 Peer reviewed Journal article 2021 ftunivstavanger https://doi.org/10.5194/se-12-741-2021 2023-05-29T16:02:53Z Five seismic interpretation experiments were conducted on an area of interest containing a fault relay in the Snøhvit field, Barents Sea, Norway, to understand how the interpretation method impacts the analysis of fault and horizon morphologies, fault lengths, and throw. The resulting horizon and fault interpretations from the least and most successful interpretation methods were further analysed to understand their impact on geological modelling and hydrocarbon volume calculation. Generally, the least dense manual interpretation method of horizons (32 inlines and 32 crosslines; 32 ILs × 32 XLs, 400 m) and faults (32 ILs, 400 m) resulted in inaccurate fault and horizon interpretations and underdeveloped relay morphologies and throw, which are inadequate for any detailed geological analysis. The densest fault interpretations (4 ILs, 50 m) and 3D auto-tracked horizons (all ILs and XLs spaced 12.5 m) provided the most detailed interpretations, most developed relay and fault morphologies, and geologically realistic throw distributions. Sparse interpretation grids generate significant issues in the model itself, which make it geologically inaccurate and lead to misunderstanding of the structural evolution of the relay. Despite significant differences between the two models, the calculated in-place petroleum reserves are broadly similar in the least and most dense experiments. However, when considered at field scale, the differences in volumes that are generated by the contrasting interpretation methodologies clearly demonstrate the importance of applying accurate interpretation strategies. publishedVersion Article in Journal/Newspaper Barents Sea Snøhvit University of Stavanger: UiS Brage Barents Sea Norway Solid Earth 12 3 741 764 |
institution |
Open Polar |
collection |
University of Stavanger: UiS Brage |
op_collection_id |
ftunivstavanger |
language |
English |
topic |
VDP::Teknologi: 500 |
spellingShingle |
VDP::Teknologi: 500 Cunningham, Jennifer Elizabeth Cardozo, Nestor Townsend, Christopher Callow, Richard H. T. The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea |
topic_facet |
VDP::Teknologi: 500 |
description |
Five seismic interpretation experiments were conducted on an area of interest containing a fault relay in the Snøhvit field, Barents Sea, Norway, to understand how the interpretation method impacts the analysis of fault and horizon morphologies, fault lengths, and throw. The resulting horizon and fault interpretations from the least and most successful interpretation methods were further analysed to understand their impact on geological modelling and hydrocarbon volume calculation. Generally, the least dense manual interpretation method of horizons (32 inlines and 32 crosslines; 32 ILs × 32 XLs, 400 m) and faults (32 ILs, 400 m) resulted in inaccurate fault and horizon interpretations and underdeveloped relay morphologies and throw, which are inadequate for any detailed geological analysis. The densest fault interpretations (4 ILs, 50 m) and 3D auto-tracked horizons (all ILs and XLs spaced 12.5 m) provided the most detailed interpretations, most developed relay and fault morphologies, and geologically realistic throw distributions. Sparse interpretation grids generate significant issues in the model itself, which make it geologically inaccurate and lead to misunderstanding of the structural evolution of the relay. Despite significant differences between the two models, the calculated in-place petroleum reserves are broadly similar in the least and most dense experiments. However, when considered at field scale, the differences in volumes that are generated by the contrasting interpretation methodologies clearly demonstrate the importance of applying accurate interpretation strategies. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Cunningham, Jennifer Elizabeth Cardozo, Nestor Townsend, Christopher Callow, Richard H. T. |
author_facet |
Cunningham, Jennifer Elizabeth Cardozo, Nestor Townsend, Christopher Callow, Richard H. T. |
author_sort |
Cunningham, Jennifer Elizabeth |
title |
The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea |
title_short |
The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea |
title_full |
The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea |
title_fullStr |
The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea |
title_full_unstemmed |
The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea |
title_sort |
impact of seismic interpretation methods on the analysis of faults: a case study from the snøhvit field, barents sea |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/3050830 https://doi.org/10.5194/se-12-741-2021 |
geographic |
Barents Sea Norway |
geographic_facet |
Barents Sea Norway |
genre |
Barents Sea Snøhvit |
genre_facet |
Barents Sea Snøhvit |
op_source |
741-764 12 Solid Earth (SE) |
op_relation |
Cunningham, J. E., Cardozo, N., Townsend, C., & Callow, R. H. (2021). The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea. Solid Earth, 12(3), 741-764. urn:issn:1869-9510 https://hdl.handle.net/11250/3050830 https://doi.org/10.5194/se-12-741-2021 cristin:1966335 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no The authors |
op_doi |
https://doi.org/10.5194/se-12-741-2021 |
container_title |
Solid Earth |
container_volume |
12 |
container_issue |
3 |
container_start_page |
741 |
op_container_end_page |
764 |
_version_ |
1768385027669753856 |