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Skurtveit, Elin; Petrie, Elizabeth S.; Smith, Scott Adam; Faleide, Thea Sveva; Sundal, Anja & Choi, Jung Chan
[Show all 10 contributors for this article]
(2023).
Core analysis from Little Grand Wash fault, Utah, and application for fault risk assessment for co2 storage in the Norwegian North Sea.
Show summary
Fault zones contain a mixture of lithologies, various fault structures, and evidence for fluid-rock interaction events, representing a record of multiple deformation events during the faulting history. The resulting complex and highly variable mixture of properties makes faults challenging structures to model, and specifically assessing the fault zone permeability and probability of reactivation is difficult. The ability of fault zones to transport fluids has received renewed attention during the last 10 years of developing subsurface, geological storage reservoirs for CO2. The North Sea sedimentary basin offshore Norway has an enormous potential for storing CO2. However, to qualify fault traps in saline aquifers for storage, improved workflows for fault risk assessment focusing on fault zone flow properties and mechanical stability is needed.
An improved approach for fault modelling is under development: we quantify the uncertainties in fault rock properties to address the probability of failure and subsequent changes in permeability. To support our understanding of subsurface faults in the North Sea, we utilize knowledge from the Little Grand Wash (LGW) fault, located in Emery County, Utah. The LGW fault zone provides a natural laboratory to study fault zone development in geological analogues, failure mechanisms, and fluid migration. As a supplement to already published well data and core descriptions from this area, three new cores were retrieved from the fault in 2019. In total 16.5 meters of core, covering both the hanging wall (Jurassic Brushy Basin Member of the Morrison Formation) and footwall (Jurassic Summerville Formation) damage zone, have been logged and sampled for petrophysical analysis and mechanical testing. The current work presents new data on variation of permeability, porosity, strength, and sonic velocity inside the fault damage zone, including measurements on different lithologies, various types of cementation and selected deformation bands, fractures, and veins. Petrophysical and chemical analysis combined with visual identification of oil stains and bleaching provide the possibility for a holistic understanding of the system and we derive valuable knowledge for improving fault risk workflows applicable for CO2 storage projects in the Norwegian North Sea.
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Holden, Nora; Osmond, Johnathon L.; Mulrooney, Mark Joseph; Skurtveit, Elin; Sundal, Anja & Braathen, Alvar
(2023).
Structural characterization and across-fault seal assessment of the Aurora CO2 storage site.
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Holden, Nora; Osmond, Johnathon; Mulrooney, Mark Joseph; Skurtveit, Elin; Braathen, Alvar & Sundal, Anja
(2022).
Influence of faults on Co2 migration.
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Holden, Nora; Osmond, Johnathon L.; Mulrooney, Mark Joseph; Skurtveit, Elin; Braathen, Alvar & Sundal, Anja
(2022).
Structural characterization and across-fault seal assessment of the Aurora CO2 storage site, northern North Sea
.
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Holden, Nora; Osmond, Johnathon L.; Mulrooney, Mark Joseph; Skurtveit, Elin; Braathen, Alvar & Sundal, Anja
(2022).
Structural characterization and across-fault seal assessment of the Aurora CO2 storage site, northern North Sea.
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Sundal, Anja
(2021).
Hydrogeologi “sett” fra verdensrommet – bruk av satellittdata I forvaltning og til overvåking av grunnvannsressurser.
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Sundal, Anja; Meneguolo, Renata & Hellevang, Helge
(2021).
CO2 storage – dynamic trapping mechanisms due to mineralization. .
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Holden, Nora; Osmond, Johnathon L.; Mulrooney, Mark Joseph; Skurtveit, Elin; Braathen, Alvar & Sundal, Anja
(2021).
Structural characterization and across-fault seal assessment of the Aurora CO2 storage site.
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Sundal, Anja; Aage, Stangeland & Bru, Tina
(2021).
Fra lab til langskip.
[Internet].
www.youtube.com/watch?v=9BcR6SFCUTg.
Show summary
Videoen "Fra lab til langskip" ble produsert av Gyro for Gassnova/CLIMIT, og presentert på CLIMIT Digit 10.02.2021
Tina Bru, Aage Stangeland og Anja Sundal intervjues.
Videoen ligger tilgjengelig her: www.youtube.com/watch?v=9BcR6SFCUTg
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Holden, Nora; Osmond, Johnathon L.; Mulrooney, Mark Joseph; Skurtveit, Elin; Braathen, Alvar & Sundal, Anja
(2021).
Across-fault seal assessment of the Aurora CO2 storage site, northern North Sea.
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Sundal, Anja
(2021).
Design of a mobile, cost-effective monitoring tool for CO2 storage sites on the Norwegian shelf.
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Sundal, Anja & Weber, Ulrich Wolfgang
(2021).
Applicability of noble gas tracers in Norwegian CO2 capture and storage schemes. The ICO2P project. .
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Holden, Nora; Osmond, Johnathon L.; Mulrooney, Mark Joseph; Skurtveit, Elin; Braathen, Alvar & Sundal, Anja
(2021).
Structural characterization and across-fault seal assessment of the Aurora CO2 storage site, northern North Sea.
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Sundal, Anja; Meneguolo, Renata; Kruber, Claudia; Olsen, Elin & Hellevang, Helge
(2021).
Geological site assessment: geochemical review of the Aurora Storage Complex, Northern Lights project, North Sea.
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Sundal, Anja & Weber, Ulrich Wolfgang
(2021).
Applicability of noble gas tracers in Norwegian CO2 capture and storage schemes.
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Weber, Ulrich Wolfgang; Kampman, Niko; Mikoviny, Tomas; Thomassen, Jorgen & Sundal, Anja
(2021).
Noble Gases as Monitoring Tracers in CCS: A Case study with CO2 from the Waste-To-Energy Plant Klemetsrud, Norway.
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Zuchuat, Valentin; Midtkandal, Ivar; Poyatos More, Miquel; Da Costa, Sigrid; Brooks, Hannah Louise & Halvorsen, Kristine
[Show all 9 contributors for this article]
(2021).
Mind The Gap: Composite and diachronous stratigraphic surfaces in low-gradient, transitional settings: The J-3 “unconformity” and the Curtis Formation, east-central Utah, U.S.A.
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Holden, Nora; Osmond, Johnathon L.; Mulrooney, Mark Joseph; Sundal, Anja & Skurtveit, Elin
(2021).
Structural characterization of the Aurora prospect, a potential CO2 storage site in the northern North Sea.
Show summary
Significant uncertainties occur through varying methodologies when interpreting faults using seismic data. These uncertainties are carried through to the interpretation of how faults may act as baffles/barriers or increase fluid flow. How fault segments are picked when interpreting structures, i.e. what seismic line spacing is specified, as well as what surface generation algorithm is used, will dictate how detailed the surface is, and hence will impact any further interpretation such as fault seal or fault growth models. We can observe that an optimum spacing for fault interpretation for this case is set at approximately 100 m. It appears that any additional detail through interpretation with a line spacing of ≤50 m simply adds further complexities, associated with sensitivities by the individual interpreter. Hence, interpreting at a finer scale may not necessarily improve the subsurface model and any related analysis, but in fact lead to the production of very rough surfaces, which impacts any further fault analysis. Interpreting on spacing greater than 100 m often leads to overly smoothed fault surfaces that miss details that could be crucial, both for fault seal as well as for fault growth models.
This contribution is a case example showing how different picking strategies influence analysis of a bounding fault in terms of CO2 storage assessment. This is an example from the Horda Plaform: the Smeaheia potential storage site, 20 km East of Troll East. This is a fault bound prospect, and hence this bounding fault is required to have a high seal potential and a low chance of reactivation upon CO2 injection, increasing the pore pressure.
Uncertainty in the seismic interpretation methodology will follow through to fault seal analysis, specifically for analysis of whether in situ stresses combined with increased pressure through CO2 injection will act to reactivate the faults, leading to up-fault fluid flow / seep. We have shown that changing picking strategies significantly alter the interpreted stability of the fault, where picking with an increased line spacing has shown to increase the overall fault stability. Surprisingly, differences in picking strategy show little influence on the overall fault seal (i.e. shale gouge ratio) of the fault.
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Sundal, Anja
(2020).
Geologisk lagring av CO2 .
Show summary
Foredragene ble filmet, og ligger tilgjengelige her:
https://youtu.be/o5AwDGwjIns
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Sundal, Anja
(2020).
Geologisk CO2-lagring – trygg og effektiv utslippsreduksjon.
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Sundal, Anja
(2020).
Hvordan karbon kan lagres trygt i stein.
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Sundal, Anja
(2020).
Prospectivity of noble gas tracers in CCS monitoring schemes.
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Sundal, Anja; Weber, Ulrich Wolfgang; Kürschner, Wolfgang; Grimstad, Alv Arne; Ruden, Fridtjof & Aagaard, Per
[Show all 9 contributors for this article]
(2020).
Hydrogeological characterization of
Holocene deposits in the Svelvik aquifer
– implications for reservoir properties.
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Revheim, Maiken Kristiansen; Weber, Ulrich Wolfgang; Hagby, Klaus Falk; Ringstad, Cathrine & Sundal, Anja
(2020).
Tidal effect on pressure in upper and
lower aquifer of the Svelvik Ridge.
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Weber, Ulrich Wolfgang; Sundal, Anja; Hellevang, Helge & Kipfer, Rolf
(2020).
Experiences from the ICO2P Project applied to Migration Monitoring of Injected CO2.
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Weber, Ulrich Wolfgang; Heeschen, Katja; Zimmer, Martin; Raphaug, Martin Hagen; Hagby, Klaus Falk & Ringstad, Cathrine
[Show all 7 contributors for this article]
(2020).
Tracer Design and Gas Monitoring of a CO2 Injection Experiment at the ECCSEL CO2 Field Lab, Svelvik, Norway.
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Weber, Ulrich Wolfgang; Raphaug, Martin Hagen; Revheim, Maiken & Sundal, Anja
(2020).
Gas Composition of the Svelvik Ridge Aquifers Used to Design Noble Gas Tracers for a CO2 Injection Experiment.
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Røyne, Anja; Samset, Bjørn Hallvard; Sundal, Anja; Storelvmo, Trude & Joner, Erik
(2020).
Boklansering: Varm klode, kaldt hode. Løsninger på klimakrisen.
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Andersen, Odd & Sundal, Anja
(2020).
Using 2D seismic line data to estimate the possible impact of large-scale and sub-scale structural trapping in the Gassum Formation on the Norwegian Continental Shelf.
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Zuchuat, Valentin; Midtkandal, Ivar; Poyatos More, Miquel; Da Costa, Sigrid; Brooks, Hannah L & Halvorsen, Kristine
[Show all 9 contributors for this article]
(2020).
Brexit, Megxit, and the J-3 Unconformitexit: how they all lost it.
Show summary
Unconformities, by definition, correspond to non-depositional or erosive surfaces, separating older strata below, from younger rocks above, and encapsulating significant time gaps. However, recent studies have emphasized the composite nature of some unconformities, as well as their heterochronous and diachronous character, which restricts the use of such a definition to a near one-dimensional setting.
This study analyses the nature of the J-3 Unconformity, which separates the Middle Jurassic Entrada Sandstone from the Late Jurassic Curtis Formation (and laterally equivalent units) in east-central Utah (USA). Our detailed mapping and characterization indicates the J-3 “Unconformity” is in fact a composite surface generated by either erosion-related processes such as eolian deflation, and water-induced erosion, or by deformational processes. These multiple mechanisms interacted and overlapped in time and space, which demonstrates the composite and diachronous and non-unique nature of such boundaries. This contact has been historically interpreted as an unconformity, but our results show that this key stratigraphic surface is a time-transgressive flooding-ravinement surface that formed shortly before and during a series of transgressions that flooded the area during the Late Jurassic. Consequently, the regionally extensive, composite, heterochronous, and diachronous J-3 Unconformity does not fit the classic unconformity definition, after which an unconformity universally separates older from younger strata basin-wide.
The J3 “Unconformity” case study highlights the fact that one process can be represented by varying expressions in the stratigraphic record, and conversely many processes may result in the same stratigraphic expression. Consequently a revised definition of unconformity is discussed, focusing on processes and associated environmental changes, while abandoning its time-barrier aspect. This investigation also exemplifies some of the implications on subsurface analyses that the inaccurate characterization of the subseismic complex characters of such major stratigraphic bounding surfaces can have. These inaccuracies may lead to imprecise timing and sediment budget predictions, and ultimately have strong implications for basin evolution and reservoir models.
Key words: Unconformity, transitional basin, composite surface, ravinement, time-transgressive
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Zuchuat, Valentin; Hafner, Alison; Osmond, Johnathon L.; Liberty, Lee; Petrie, Elizabeth & Arvesen, Brock
[Show all 11 contributors for this article]
(2020).
CO2 containment and monitoring techniques along Little Grand Wash Fault, east-central Utah, USA.
Show summary
Our current understanding of sub-surface CO2 storage feasibility derives mainly from valuable small-scale projects, which have mostly been working at injection or human time scales. These projects, however, have not been operational long enough to fully assess flow and/or seepage at longer time scales relevant for subsurface CO2 sequestration (e.g. > 10 kY). Many examples of fluid escape have been documented in the offshore subsurface environment (e.g. seismic chimneys), and active or relict natural seeps on land offer informative analogues to subsurface fluid migration.
Of note are the natural seeps located in east-central Utah, USA that are easily accessible and represent suitable onshore counterparts to the offshore fluid escape features. These seeps can be studied to improve our understanding of geological and geomechanical factors controlling subsurface CO2 containment and the expression of fluid escape in geophysical images. A critical concern in CCS is how to account for features that are detrimental to subsurface storage containment and are at scales below seismic resolution. This multidisciplinary project aims to address the challenge by collecting surface and subsurface datasets at mesoscopic scales that, through upscaling, will be implemented in seismic investigations and reservoir-seal models. The project builds upon previous studies detailing the complex development of the Jurassic sedimentary basin in question (Zuchuat et al. 2018; 2019a; 2019b) but is also relevant for analogous settings such as the Norwegian Continental Shelf (e.g. Horda Platform region). Overall, this next research phase specifically focuses on the detailed, post-depositional history of the targeted interval in Utah, addressing one fundamental question: what are the thresholds for detecting CO2 seeps in the subsurface? This encompasses more targeted questions:
• What does the fault core and the fault damage zone of the leaking Little Grand Wash Fault consist of?
• What is the detailed geological footprint of CO2 flow along strata, faults, and fractures?
• How did the CO2 flow migrate through a heterogeneous and transitional, faulted reservoir-seal complex?
• Can seepage from the storage compartments and fluid saturation be identified by seismic imaging?
Zuchuat, V., Sleveland, A. R., Sprinkel, D. A., Rimkus, A., Braathen, A., & Midtkandal, I. (2018). New Insights on the Impact of Tidal Currents on a Low-gradient, Semi-enclosed, Epicontinental Basin—the Curtis Formation, East-central Utah, USA. Geology of the Intermountain West, 5, 131-165.
Zuchuat, V., Sleveland, A.R.N., Pettigrew, R.P, Dodd, T.J.H., Clarke, S.M., Braathen, A., & Midtkandal, I. (2019a). Overprinted Allocyclic Processes by Tidal Resonance in an Epicontinental Basin: the Upper Jurassic Curtis Formation, East-Central Utah, USA. The Depositional Record, 5(2), 272-305.
Zuchuat, V., Midtkandal, I., Poyatos-Moré, M., Da Costa, S., Brooks, H.L., Halvorsen, K., Cote, N., Sundal, A., & Braathen, A. (2019b). Composite and Diachronous Stratigraphic Surfaces in Low-Gradient, Transitional Settings: the J-3 “Unconformity” and the Curtis Formation, East-Central Utah, U.S.A. Accepted in The Journal of Sedimentary Research.
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Anell, Ingrid Margareta; Backer, Dag; Sundal, Anja; Torvanger, Asbjørn; Meisingset, Egil & Rørvik, Kari-Lise
[Show all 7 contributors for this article]
(2019).
Feasibility of CO2 storage as a climate mitigation measure in Norway.
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Zuchuat, Valentin; Osmond, Johnathon L.; Sundal, Anja; Midtkandal, Ivar; Skurtveit, Elin & Petrie, Elizabeth
[Show all 9 contributors for this article]
(2019).
CO2 containment and monitoring techniques along Little Grand Wash Fault, east-central Utah, USA.
Show summary
Our current understanding of sub-surface CO2 sequestration feasibility derives mainly from valuable small-scale projects, which have mostly been working at injection or human time scales. These projects, however, have not been operational long enough to fully assess flow and/or seepage at longer time scales relevant for subsurface CO2 storage (e.g. > 10 kY). Many examples of fluid escape have been documented in the offshore subsurface environment (e.g. seismic chimneys), and natural seeps found on land, both active and relict, offer informative analogues to subsurface fluid migration. Of note are the natural seeps located in east-central Utah, USA that are easily accessible and represent suitable onshore counterparts to the offshore fluid escape features. These seeps can improve our understanding of geological and geomechanical factors controlling subsurface CO2 containment and the expression of fluid escape in geophysical images. A critical concern is how to account for features that are detrimental to subsurface storage containment and are at scales below seismic resolution. This multidisciplinary project aims to address the challenge by collecting surface and subsurface datasets at mesoscopic scales that, through viable upscaling, will be implemented in seismic investigations and reservoir-seal models. Moreover, the project builds upon previous studies detailing the complex development of the Jurassic sedimentary basin in question (Zuchuat et al. 2018; 2019; in press) but is also relevant for the Horda Platform region (Aurora and Smeaheia) or other prospective North Sea CO2 storage sites. Overall, this next research phase specifically focuses on the detailed, post-depositional history of the targeted interval in Utah, addressing one fundamental question: what are the thresholds for detecting CO2 seeps in the subsurface? This encompasses more targeted questions:
• What is the detailed geological footprint of CO2 flow along strata, faults, and fractures?
• How did the CO2 flow migrate through a heterogeneous and transitional, faulted reservoir-seal complex?
• Can seepage from the storage compartment be identified by seismic imaging?
• Can detailed geological datasets and related geophysical models verify the existence of – and facilitate quantification of CO2 volumes (saturation) required to create offshore geophysical chimneys, and thereby improve integrity assessment of prospective North Sea CO2 reservoirs?
Zuchuat, V., Sleveland, A. R., Sprinkel, D. A., Rimkus, A., Braathen, A., & Midtkandal, I. (2018). New Insights on the Impact of Tidal Currents on a Low-gradient, Semi-enclosed, Epicontinental Basin—the Curtis Formation, East-central Utah, USA. Geology of the Intermountain West, 5, 131-165.
Zuchuat, V., Sleveland, A.R.N., Pettigrew, R.P, Dodd, T.J.H., Clarke, S.M., Braathen, A., & Midtkandal, I. (2019). Overprinted Allocyclic Processes by Tidal Resonance in an Epicontinental Basin: the Upper Jurassic Curtis Formation, East-Central Utah, USA. The Depositional Record, 5(2), 272-305.
Zuchuat, V., Midtkandal, I., Poyatos-Moré, M., Da Costa, S., Brooks, H.L., Halvorsen, K., Cote, N., Sundal, A., & Braathen, A. (in press.). Composite and Diachronous Stratigraphic Surfaces in Low-Gradient, Transitional Settings: the J-3 “Unconformity” and the Curtis Formation, East-Central Utah, U.S.A. Accepted in The Journal of Sedimentary Research.
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Sundal, Anja
(2019).
Geologisk lagring av CO2 på norsk sokkel.
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Sundal, Anja
(2019).
Geologisk CO2-lagring – trygt og godt for alltid?
Show summary
Program: https://www.uio.no/om/samarbeid/skole/fagped-dag/program/
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Sundal, Anja & Ruden, Fridtjof
(2019).
CO2-lagring i grunnen – hydrogeologisk feltlaboratorium på Svelvik.
Show summary
Event: https://facebook.com/events/2159455514177753/?ti=cl
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Weber, Ulrich Wolfgang; Kipfer, Rolf; Brennwald, Matthias S.; Ringrose, Philip & Sundal, Anja
(2019).
Noble Gases as Monitoring Tracers: Sampling Campaigns at Capture Sites Technology Center Mongstad and Melkøya.
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Sundal, Anja; French, Helen Kristine & Aagaard, Per
(2019).
Hydrogeology for students and society: outreach integration in education .
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Sundal, Anja; Tuttle, Kevin J.; Aagaard, Per; Fikse, Andrea Nymoen; Moe, K.G. & Øvstedal, Jarl
(2019).
Managing and monitoring dynamic ravinement processes.
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Sena, Clara; Sundal, Anja; Uglum, Maria C.; Kristiansen, Ingrid E. & Kvitsjøen, Julia
(2019).
Hydrogeological tools in urban runoff management – case study from Torshovdalen, Oslo.
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Aagaard, Per; Sena, Clara; Sundal, Anja & French, Helen Kristine
(2019).
In situ removal of iron and manganese, the Vyredox treatment system at Elverum .
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Andersen, Odd & Sundal, Anja
(2019).
Using 2D seismic line data to estimate impact of caprock morphology on CO2 migration in the Gassum formation.
Full text in Research Archive
Show summary
The Gassum Formation on the Norwegian Continental Shelf serves as the principal case study for the CO2-Upslope project. The top surface of this formation is gently sloping, and characterized by a number of macro-scale structural traps, a few large faults, a large number of small faults, and small-scale depth variations that can be inferred and extrapolated from the seismic data. In the study presented in this paper, we estimate the amount of macro- and sub-scale trapping potential of the formation based on interpreted 2D seismic lines and identified faults. The seismic lines provide the depth of the caprock at each point along straight lateral paths. In the available data, a few dozen such lines cross the study area at various angles. A number of medium and large faults could be explicitly identified and mapped, as they correlate between several of these lines. In addition, hundreds of small-scale faults are only visible as discontinuities along individual lines. The extent and shape of these small faults between the seismic sections cannot be explicitly known from the data.
In order to investigate trapping potential, we start out by constructing multiple realizations of the top surface, constructed to be faithful to both large-scale topography and small-scale statistical properties. We use a tensor spline surface approximation to represent the surface trend, with added stochastic small-scale variations consistent with the statistical properties of the line data. Moreover, we include a distribution small-scale faults that are only visible as discontinuities in the seismic lines by adding assumptions on their general orientations and lengths.
At the timescales associated with long-term CO2 plume migration, it can generally be assumed that vertical equilibrium has been reached and that the CO2 slowly flows as a thin wedge right under the top surface, driven by gravity forces. Based on this assumption, we apply spill-point analysis and upscaling techniques on our sets of top surface realizations to explore the possible range of values for total structural trapping and plume retardation potential, and how they depend on the assumptions made. We also study the impact of the placement of the injection site, and how much of the total structural storage potential can be actually realized based on the position of the site and the injection strategy.
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Sundal, Anja
(2019).
Application of noble gas signatures in monitoring schemes for CO2 storage offshore Norway.
Show summary
Short (1 slide) pitch about the ICO2P project
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Sundal, Anja
(2019).
Cost-effective monitoring by application of noble gas signatures.
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Weber, Ulrich Wolfgang & Sundal, Anja
(2019).
Application of noble gas signatures in monitoring schemes for offshore CO2 storage (ICO2P).
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Weber, Ulrich Wolfgang; Sundal, Anja; Brennwald, M.S. & Kipfer, Rolf
(2019).
Temporal Variation in Noble Gas Signatures of Captured CO2.
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daCosta, Sigrid Østmo; Bromander, Nikoline; Zuchuat, Valentin; Braathen, Alvar; Sundal, Anja & Midtkandal, Ivar
(2018).
Topographic Development as a result of regional incision, faulting, and
deposition at the onset of relative sea-level rise; The upper Entrada
Sandstone and the lower Curtis Formation, Utah, USA.
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Skurtveit, Elin; Sundal, Anja; Soldal, Magnus; Sauvin, Guillaume & Bjørnarå, Tore Ingvald
(2018).
CO2 flow, alteration and geomechanical response in confining units – An experimental approach.
Full text in Research Archive
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Midtkandal, Ivar; Sundal, Anja; Braathen, Alvar; Petrie, Elizabeth; Evans, James R. & Zuchuat, Valentin
[Show all 10 contributors for this article]
(2018).
Project summary: CO2 seal bypass - a multidisciplinary approach to CO2 migration and storage.
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Sundal, Anja; Weber, Ulrich Wolfgang; Brennwald, Matthias S.; Ringrose, Philip; enaasen flø, nina & Johnsen, Kim
[Show all 9 contributors for this article]
(2018).
Monitoring real time, in-line variations of
noble gas concentrations during CO2 capture operations
by means of a portable mass spectrometer .
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Weber, Ulrich Wolfgang; Sundal, Anja; Brennwald, M.S.; Ringrose, Philip; Aagaard, P. & Kipfer, Rolf
(2018).
CO2 Capture Processes Monitored with Noble Gas Measurements.
Show summary
In the ICO2P project [1] a monitoring scheme for carbon capture and storage is developed with the aim to use noble gases as signatures for capture products.
One approach to capture CO2 is amine-based temperature swing absorption. During such processes there is a potential for depletion of radiogenic noble gases from the fossil source, due to the addition of a gas phase void of radiogenic noble gases. The influence on the noble gas fingerprints of such techniques is investigated by single, analysed samples with full isotope resolution. This is combined with in-line, continuous noble gas measurements with a portable mass spectrometer [2]. This is a new approach that will provide knowledge of the uniqueness and temporal variations of noble gas fingerprints in the product stream from CO2 capture operations.
The feasibility of such an on-site measurement system was successfully tested at a CO2 capture testing facility in Norway (TCM). Matching of the data with the reservoir source combusted at that time, forms the basis for setting up geochemical analytical schemes in mixing scenarios. Monitoring data from CO2 product streams are key in designing leakage detection schemes for future storage sites.
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Uglum, Maria C.; Sundal, Anja; Sena, Clara & Kvitsjøen, Julia
(2018).
CONSIDERING GROUNDWATER RECHARGE AND FLOW IN URBAN DEVELOPMENT PLANNING – A CASE STUDY FROM TORSHOVDALEN, OSLO
.
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Kristiansen, Ingrid E.; Uglum, Maria C.; Sena, Clara; Sundal, Anja & Kvitsjøen, Julia
(2018).
ASSESSMENT OF THE URBAN RUNOFF AND GROUNDWATER QUALITY IN THE RECREATIONAL AREA OF TORSHOVDALEN (OSLO, NORWAY).
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Gregersen, Ulrik; Baig, Irfan; Sundal, Anja; Nielsen, Lars-Henrik; Olivarius, Mette & Weibel, Rikke
(2018).
Seismic interpretation of a potential CO2 reservoir; the Gassum Formation, a sloping aquifer in Skagerrak between Norway and Denmark.
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Olivarius, Mette; Sundal, Anja; Gregersen, Ulrik; Thomsen, T.B.; Weibel, Rikke & Nielsen, Lars-Henrik
(2018).
Using petrography and provenance data to assess the CO2 trapping potential in sloping sandstones in the Skagerrak Strait.
EAGE extended abstracts.
doi:
10.3997/2214-4609.201801148.
Show summary
80th EAGE Conference and Exhibition 2018
CO2 Capture, Storage and Utilization
http://www.earthdoc.org/publication/publicationdetails/?publication=92535
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Bromander, Nikoline; da Costa, Sigrid; Skurtveit, Elin; Evans, Jim; Midtkandal, Ivar & Zuchuat, Valentin
[Show all 8 contributors for this article]
(2018).
Regional evaluation of structural collapse in sandstone reservoirs and impact on reservoir quality: a case study from the Entrada Sandstone, Utah, USA.
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Sacco, Tatiana; Sundal, Anja & Hellevang, Helge
(2018).
Mass estimation of CO2 trapping potential in the Smeaheia reservoir.
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Sundal, Anja; Hellevang, Helge; Olivarius, Mette; Miri, Rohaldin; Nielsen, Lars-Henrik & Gregersen, Ulrik
[Show all 10 contributors for this article]
(2018).
Geological Constraints on the immobilization potential for CO2 in the Gassum Fm. (Skagerrak, Norway).
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Zuchuat, Valentin; Midtkandal, Ivar; Miquel, Poyatos-More; Da Costa, Sigrid; Halvorsen, Kristine Årland & Sundal, Anja
[Show all 8 contributors for this article]
(2018).
Unconformities matter: The spatial and temporal information contained in the J-3 Unconformity and the Curtis Formation, east-central Utah, USA.
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Kaufmann, Roland; Gasda, Sarah Eileen; Elenius, Maria; Skurtveit, Elin; Choi, Jung Chan & Sundal, Anja
[Show all 9 contributors for this article]
(2018).
Arbeidsflyt for trykk-basert kapasitets-anslag: En eksempelstudie på Smeaheia.
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Sundal, Anja; Kipfer, Rolf & Brennwald, Matthias S.
(2017).
Apparent Heating of Groundwater in the Gardermoen Aquifer, Norway .
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Sundal, Anja
(2017).
KARBONLAGRING: Undergrunn + CO2 = trygt.
Show summary
Bli inspirert av åtte lynpresentasjoner om FNs bærekraftmål #7: Ren energi til alle.
https://www.studentevent.no/events/84583
Velkommen til en lærerik og sosial kveld på Kulturhuset. Ta gjerne med en venn eller kollega – arrangementet er åpent og gratis for alle. Øl får du kjøpt i baren.
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Zuchuat, Valentin; Midtkandal, Ivar; Da Costa, Sigrid; Sundal, Anja & Braathen, Alvar
(2017).
Schizophrenia in sedimentology: The J-3 Unconformity and the Curtis Formation, Central-Eastern Utah, USA.
Show summary
The tide-dominated, Upper Jurassic Curtis Formation crops out in Eastern-Central Utah, overlying the continental to marginal marine Entrada Sandstone. The contact between the two sedimentary formations is formally identified as the J-3 Unconformity, which can be traced over significant distances. It has since been regarded as a “simple” subaerial unconformity, followed by a third order transgression within an enclosed basin and the resulting deposition of the tide-influenced Curtis Formation. However, careful inspection of the different facies and their sub-regional correlation clearly shows that the essence of the J-3 Unconformity is not merely characterised by a long-lasting phase of subaerial exposure. It instead displays evidence of an intricate poly-erosional history, happening during short-lived syn-depositional transgressive and regressive periods. The initial bounding surface was locally altered by processes associated with development of the Curtis Formation, and the nature of their impact is strongly process-dependent. Pre-Curtis erosional processes mainly involved aeolian deflation and fluvial incision, creating a basinwide gentle relief. Syn-Curtis erosional mechanisms were controlled by the distribution and magnitude of tidal forces within the basin, resulting in a steeper and more localised relief in comparison with pre-Curtis widespread denudation. Furthermore, sedimentary processes alone can’t explain the present-day relief observed with the J-3 Unconformity. Indeed, tectonic played, at various scale, a key role in the funnelling of the various erosional forces and the distribution of the depocentres, with (i) m-scale grabens and horsts structures, and (ii) hydroplastic sand remobilisation, both observed within the uppermost strata of the Entrada Sandstone, as well as (iii) syn-Curtis sub-regional tectonic uplift. This study shows that reducing an unconformity to a single process is insufficient. Instead, careful mapping and understanding of such a schizophrenic surface can provide a non-negligible amount of information regarding the dynamic of a basin and its subsequent infill.
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Sundal, Anja
(2017).
KARBONLAGRING: CO2 + Undergrunn = Sant.
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Elenius, Maria; Hellevang, Helge; Skurtveit, Elin; Yurushina, Viktoriya; Baig, Irfan & Sundal, Anja
[Show all 12 contributors for this article]
(2017).
Workflow for evaluation of large-scale CO2 storage feasibility: Skade.
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Elenius, Maria; Hellevang, Helge; Skurtveit, Elin; Yurushina, Viktoriya; Baig, Irfan & Sundal, Anja
[Show all 12 contributors for this article]
(2017).
Workflow for assessment of storage based on sparse data: Skade.
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Sundal, Anja; Brennwald, Matthias S.; Per, Aagaard; Philip, Ringrose & Rolf, Kipfer
(2017).
APPLICATION OF NOBLE GAS SIGNATURES IN MONITORING SCHEMES FOR CO2 STORAGE.
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Harris, Sharon; Anell, Ingrid Margareta; Sundal, Anja; Braathen, Alvar & Faleide, J I
(2019).
The tectono-sedimentary development of Smeaheia on the Horda Platform with a focus on the Cretaceous, and implications for CO2 storage.
7Letras.
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Kolnes, Jens; Anell, i; Mulrooney, Mark Joseph; Veggeland, Frode & Faleide, J I
(2019).
Reconstruction of the subsidence and uplift history of a proposed CO2 storage site in the northern North Sea.
7Letras.
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Bromander, Nikoline; Sundal, Anja; Skurtveit, Elin; Midtkandal, Ivar & Braathen, Alvar
(2018).
Facies-controlled reservoir quality and preferential deformation in sandstone reservoirs; a case study from the Entrada Sandstone, Utah, USA.
7Letras.
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Bromander, Nikoline; Sundal, Anja; Midtkandal, Ivar & Zuchuat, Valentin
(2018).
Facies-controlled reservoir quality and preferential deformation in sandstone reservoirs; a case study from the Entrada Sandstone, Utah, USA.
Universitetet i Oslo.
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Sundal, Anja; Hellevang, Helge & Sacco, Tatiana
(2018).
CO2 trapping in the Smeaheia reservoir - time mass estimation using geochemical models.
Universitetet i Oslo.