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Holden, Nora; Alaei, Behzad; Skurtveit, Elin & Braathen, Alvar
(2024).
The impact of depth conversion on fault geometry and its influence on fault-risk assessment in the Smeaheia storage site
.
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Hansen, Torsten Hundebøl; Blondel, Simon; Evans, Sian Lianne; Bruhn, Rikke & Braathen, Alvar
(2024).
CCNS - Evaluating CO2-storage potential offshore Southern Norway.
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Blondel, Simon; Evans, Sian Lianne; Bruhn, Rikke & Braathen, Alvar
(2023).
CO2 storage research and Cross-border synergies in the southern Norwegian North Sea.
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Blondel, Simon; Evans, Sian Lianne; Hansen, Torsten Hundebøl; Bruhn, Rikke & Braathen, Alvar
(2023).
CO2 storage research and cross-border synergies: Underground CO2 storage potential assessment in the western Norwegian-Danish basin.
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Blondel, Simon; Evans, Sian Lianne; Bruhn, Rikke & Braathen, Alvar
(2023).
CO2 storage research and cross-border synergies: Underground CO2 storage potential assessment in the western Norwegian-Danish basin.
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Evans, Sian Lianne; Blondel, Simon; Braathen, Alvar & Bruhn, Rikke
(2023).
Evolution of salt diapirs in the Norwegian NDB.
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Evans, Sian Lianne; Blondel, Simon; Braathen, Alvar & Bruhn, Rikke
(2023).
Optimising Site Selection for CO2 Storage in Salt Basins: the Norwegian-Danish Basin, a future European energy hub.
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Evans, Sian Lianne; Blondel, Simon; Braathen, Alvar & Bruhn, Rikke
(2023).
CO2 storage in salt basins: Influence of salt tectonics on seal integrity and containment risk.
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Evans, Sian Lianne; Blondel, Simon; Braathen, Alvar & Bruhn, Rikke
(2023).
CO2 storage in salt basins: Influence of salt tectonics on seal integrity and containment risk.
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Skurtveit, Elin; Midtkandal, Ivar & Braathen, Alvar
(2023).
A naturally occurring CO2 laboratory in Utah.
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Skurtveit, Elin; Petrie, Elizabeth S.; Smith, Scott Adam; Faleide, Thea Sveva; Sundal, Anja & Choi, Jung Chan
[Vis alle 10 forfattere av denne artikkelen]
(2023).
Core analysis from Little Grand Wash fault, Utah, and application for fault risk assessment for co2 storage in the Norwegian North Sea.
Vis sammendrag
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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Osmond, J.L.; Holden, Nora; Mulrooney, Mark Joseph; Skurtveit, Elin; Faleide, Jan Inge & Braathen, Alvar
(2023).
Beyond Aurora and Smeaheia; structural traps and seals for additional CO2 storage within Jurassic Horda Platform aquifers.
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Holden, Nora; Alaei, Behzad; Skurtveit, Elin & Braathen, Alvar
(2023).
Uncertainty in fault-risking.
Influence of depth-conversion on fault-geometry and fault-risk assessment in the Smeaheia CO2 storage site
.
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Holden, Nora; Alaei, Behzad; Skurtveit, Elin & Braathen, Alvar
(2023).
Implications of depth-conversion on fault geometries and fault-risk assessment in the Smeaheia CO2 storage site, northern North Sea.
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Holden, Nora; Alaei, Behzad; Skurtveit, Elin & Braathen, Alvar
(2023).
Uncertainty in fault-risk assessment - implications of depth-conversion on fault-risk assessment in the Smeaheia CO2 storage site, northern 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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Parcher, J. & Braathen, Alvar
(2023).
Basement-top plays and Jurassic deposits off the Utsira High (Johan Sverdrup Field) .
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Blinkenberg, Kasper & Braathen, Alvar
(2023).
Zechstein carbonates of the Utsira High region .
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Osmundsen, P.T. & Braathen, Alvar
(2023).
Setting of the Frøya High and its northwards continuation to the Norland Ridge .
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Peron-Pinvidic, Gwen & Braathen, Alvar
(2023).
Evolution of the mid-Norwegian margin – from rift to breakup .
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Braathen, Alvar
(2023).
Plans for a Suprabasins-II proposal (to Petromaks2: 15/2 or 15/9-23?) .
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Osmundsen, P.T. & Braathen, Alvar
(2023).
From rift-fault to mega-fault: fault throw and rollback impacting basin geometries .
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Braathen, Alvar
(2023).
Impact of fault-elastic rebound for sediment characteristics in hanging wall basins: observations and cases .
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Braathen, Alvar
(2023).
Isostatic rollback of faults and perched basins – some observations .
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Braathen, Alvar
(2023).
Introduction to Utsira High proper .
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Braathen, Alvar & Midtkandal, Ivar
(2023).
Plans for a Suprabasins-II proposal .
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Braathen, Alvar
(2023).
Plans for a Suprabasins-II proposal .
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Braathen, Alvar
(2023).
Status on Suprabasins .
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Braathen, Alvar
(2023).
Introduction to Suprabasins .
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Anell, Ingrid; Braathen, Alvar; Midtkandal, Ivar; Grimsrud Olsen, Stine; Haugen, Maria & Wallace, Malcolm W
(2022).
Geometric controls on clinoforms, the building blocks of sedimentary basins – from ripple to shelf-edge.
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Gresseth, Julie & Braathen, Alvar
(2022).
Deep structures of the Bjarmland Platform region - Devonian tectonics guiding subsequent faulting in the Barents Shelf.
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Julian, Janocha & Braathen, Alvar
(2022).
Upper Devonian to Permian source rock potential on Bjørnøya and implications for the Barents Shelf.
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Dahlin, Anders & Braathen, Alvar
(2022).
Sørkapp-Hornsund High (South Spitsbergen) as an analogue to the Loppa High.
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Braathen, Alvar & Midtkandal, Ivar
(2022).
Suprabasins – where do we go? .
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Würtzen, Camilla Louise; Midtkandal, Ivar; Mulrooney, Mark Joseph & Braathen, Alvar
(2022).
Fault-influence in alluvial deposits of the Qahlah Formation - provenance, depocenter development, drainage patterns, and facies assemblage of Upper Cretaceous Fanja Basin, northeastern Oman.
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Midtkandal, I; Braathen, Alvar & Osmundsen, Per Terje
(2022).
Rift footwall range geomorphology as a function of fault length and throw.
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Smyrak-Sikora, Aleksandra; Augland, Amund; Betlem, Peter & Braathen, Alvar
(2022).
Deep-time paleoclimate events preserved in Svalbard’s rock record – a review. 35th IAS Meeting of Sedimentology.
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Evans, Sian Lianne; Blondel, Simon & Braathen, Alvar
(2022).
How much structure is too much? De-risking CO2 storage sites in under-explored basins.
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Smyrak-Sikora, Aleksandra; Blinkenberg, Kasper; Braathen, Alvar & Dahlin, Anders
(2022).
Carboniferous–Permian rift systems in Svalbard. .
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Blinkenberg, Kasper; Hodgkins, Malcolm & Braathen, Alvar
(2022).
U/Pb geochronology status meeting .
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Blinkenberg, Kasper & Braathen, Alvar
(2022).
Carbonate systems conference, Naples. Presented Zechstein study. LS + KHB + AD participated from Suprabasins.
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Blinkenberg, Kasper; Rameil, Niels & Braathen, Alvar
(2022).
Core workshop and core viewing of Zechstein material.
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Blinkenberg, Kasper; polonio, israel; Rameil, Niels & Braathen, Alvar
(2022).
Lundin carbonates .
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Blinkenberg, Kasper; polonio, israel & Braathen, Alvar
(2022).
Zechstein collaboration work .
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Blinkenberg, Kasper; polonio, israel & Braathen, Alvar
(2022).
Zechstein meeting .
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Blinkenberg, Kasper; Hodgskiss, Malcolm S. W. & Braathen, Alvar
(2022).
U/Pb dating of Zechstein carbonates.
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Blinkenberg, Kasper; polonio, israel & Braathen, Alvar
(2022).
Follow-up meeting .
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Blinkenberg, Kasper; polonio, israel & Braathen, Alvar
(2022).
Zechstein meeting .
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Blinkenberg, Kasper; Stemmerik,, Lars & Braathen, Alvar
(2022).
Permian carbonates of the Utsira High – new learnings. .
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Osmundsen, Per Terje; Peron, Gwenn; Gresseth, Julie Linnea Sehested & Braathen, Alvar
(2022).
3D evolution of exensional detachment faults and their effect on the architecture of rifts and rifted margins .
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Osmundsen, Per Terje; Peron, Gwenn; Gresseth, Julie Linnea Sehested & Braathen, Alvar
(2022).
3D evolution of large-magnitude extensional faults and their effects on the architecture of rifts and rifted margins.
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Smyrak-Sikora, Aleksandra & Braathen, Alvar
(2022).
Carboniferous to Permian rift deposits in Svalbard.
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Osmundsen, Per Terje & Braathen, Alvar
(2022).
Evolution of border faults in rifts and at rifted margins: tectono-sedimentary relationships produced by large-magnitude faulting and successive incision.
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Peron-Pinvidic, Gwen & Braathen, Alvar
(2022).
Prolonged evolution from rift to passive margin – the Mid-Norwegian Shelf.
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Stemmerik, Lars; Olaussen, Snorre & Braathen, Alvar
(2022).
Late Permian-Early Triassic synrift basin fill: Breakup of Pangea and the first brick in the puzzle of NE Atlantic-Arctic Mesozoic-early Cenozoic continental extension.
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Stemmerik, Lars & Braathen, Alvar
(2022).
Permian karstification in the northern North Atlantic and central Arctic .
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Würtzen, Camilla Louise & Braathen, Alvar
(2022).
Fault-influence on the alluvial Upper Cretaceous Fanja Basin of northeastern Oman.
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Poyatos-Moré, Miquel; Vicedo, v & Braathen, Alvar
(2022).
Depositional signatures and Tethys biostratigraphy of Paleogene tectonic keel basin – Ibra Basin, Oman.
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Redfield, Tim F.; Osmundsen, Per Terje & Braathen, Alvar
(2022).
A possible neotectonic signal derived from rivers of the MTFC - can a similar method be applied to offshore top basement grids? .
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Braathen, Alvar & Midtkandal, Ivar
(2022).
Suprabasins – where do we go? .
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Braathen, Alvar
(2022).
Suprabasins – status on project.
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Braathen, Alvar
(2022).
Fault-driven morphology of rifts.
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Braathen, Alvar
(2022).
Suprabasins - Welcome and Introduction.
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Braathen, Alvar
(2022).
Tectonic setting of basins in Oman, and their relevance to North Sea studies.
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Braathen, Alvar
(2022).
Suprabasins Introduction; rift morphology.
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Braathen, Alvar; Midtkandal, Ivar & Osmundsen, Per Terje
(2022).
Geomorphology of continental rift landscapes - analyses inspired by North Sea observations.
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Puig, Josep & Braathen, Alvar
(2022).
Shallow marine sedimentary architecture of Jurassic growth-basin proximal to exhumed basement – the Johan Sverdrup case.
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Hassan, Muhammad & Braathen, Alvar
(2022).
Tectonic evolution of the Utsira High region.
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Puig, Jose Maria; Braathen, Alvar & Howel, John
(2022).
Shallow marine sedimentary architecture of Jurassic growth-basin proximal to exhumed basement – the Johan Sverdrup case.
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Høj Blinkenberg, Kasper; Braathen, Alvar; Stemmerik, Lars; Gianotten, Ingrid Piene & Polonio, Israel
(2022).
Permian carbonates of the Utsira High - new learnings.
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Würtzen, Camilla Louise; More, M.P; Midtkandal, Ivar & Braathen, Alvar
(2022).
The impact of faulting in depocentre development, facies assemblages, drainage patterns, and provenance in continental half‐graben basins: an example from the Fanja Basin of Oman. Basin Research.
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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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Osmond, Johnathon; Mulrooney, Mark Joseph; Holden, Nora; Skurtveit, Elin; Faleide, Jan Inge & Braathen, Alvar
(2022).
Past fluid containment and present applications toward future CO2 storage in the northern Horda Platform, offshore Norway.
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Vicedo, v; Robles-Salcedo, R; Poyatos-Moré, Miquel; Braathen, Alvar & Midtkandal, Ivar
(2022).
Evolution of a Paleogene shallow-marine platform in the northern sector of the Ibra Basin (NE Oman).
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Braathen, Alvar
(2022).
Fault zone architecture and seismic imaging.
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Skurtveit, Elin; Bjørnarå, Tore Ingvald; Haines, Emma Michie; Gasda, Sarah Eileen; Eidsvig, Unni & Braathen, Alvar
(2022).
Updated workflow for fault risk assessment and application to Vette Fault Zone, Horda Platform, offshore Norway.
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Haines, Emma Michie & Braathen, Alvar
(2022).
Strategies to De-Risk Faults in the Subsurface for CO2 Storage: A Case Study from Smeaheia.
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Braathen, Alvar; Skurtveit, Elin; Mulrooney, Mark Joseph; Haines, Emma Michie; Faleide, Thea Sveva & Osmond, Johnathon
[Vis alle 10 forfattere av denne artikkelen]
(2022).
Understanding faults and their influence on fluid flow.
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Osmond, Johnathon; Mulrooney, Mark Joseph; Holden, Nora; Skurtveit, Elin; Faleide, Jan Inge & Braathen, Alvar
(2022).
Quaternary stratigraphy and pockmark mapping in the Norwegian Channel, northern North Sea.
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Osmond, Johnathon; Mulrooney, Mark Joseph; Würtzen, Camilla Louise; De La Cruz, E.; Skurtveit, Elin & Faleide, Jan Inge
[Vis alle 7 forfattere av denne artikkelen]
(2022).
Upper Jurassic through Lower Cretaceous seal characterization in the northern Horda Platform.
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Osmond, Johnathon; Mulrooney, Mark Joseph; Holden, Nora; Skurtveit, Elin; Faleide, Jan Inge & Braathen, Alvar
(2022).
Screening traps and seals for CO2 storage expansion in the northern Horda Platform, Norwegian North Sea.
Vis sammendrag
Evaluation and development of new and exciting CO2 storage opportunities on the Norwegian Continental Shelf is on the rise. Of note is the Aurora site located in northern Horda Platform of the Norwegian North Sea, where injection is scheduled to commence in 2024 under project Longship. While the planned injection volumes at Aurora are over 1.5 megatonnes per year, many more storage locations are required in order to meet international climate mitigation targets by 2050. Other parts of the northern Horda Platform show CO2 storage potential, but additional subsurface characterization is required. As a contribution towards this effort, I present two possible Jurassic storage complexes (Lower and Upper), where I discuss the presence of available storage aquifers, structural traps, as well as top and fault seals. Overall, our work supports the notion that the northern Horda Platform may be capable of hosting a future CO2 storage hub for northern Europe.
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Osmond, Johnathon; Mulrooney, Mark Joseph; Holden, Nora; Skurtveit, Elin; Faleide, Jan Inge & Braathen, Alvar
(2022).
Distribution of faulted Mesozoic and Tertiary seals for CO2 storage in the northern Horda Platform, Norwegian North Sea.
Vis sammendrag
This lecture summarizes a recent case study involving the derisking of geological seals for a potential offshore CO2 storage site. In the northern Horda Platform of the northern North Sea, the structural and stratigraphic architecture of the producing Troll East hydrocarbon field is directly analogous to the Alpha CO2 storage prospect in the Smeaheia fault block just to the east of the field. Building on this observation, we have mapped the proven regional seal units of Troll East in order to extrapolate and understand their distribution throughout the northern Horda Platform. Here, we utilize our results to compare Alpha with Troll East, and discuss top and fault seal presence in the context of derisking Alpha’s CO2 storage prospectivity.
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Skurtveit, Elin; Bjørnarå, Tore Ingvald; Michie, Emma; Gasda, Sarah Eileen; Keilegavlen, Eirik & Sandve, Tor Harald
[Vis alle 10 forfattere av denne artikkelen]
(2022).
Updated workflow for fault risk assessment and application to Vette Fault Zone, Horda Platform, offshore Norway.
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Wu, Long; Skurtveit, Elin; Thompson, Nicholas D.; Michie, Emma; Fossen, Haakon & Braathen, Alvar
[Vis alle 9 forfattere av denne artikkelen]
(2022).
Containment Risk Assessment and Management of CO2 Storage on the Horda Platform .
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Haines, Emma Michie & Braathen, Alvar
(2022).
Strategies to De-Risk Faults in the Subsurface for CO2 Storage: A Case Study from Smeaheia.
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Haines, Emma Michie; Braathen, Alvar & Alaei, Behzad
(2022).
How Fault Interpretation Method May Influence the Assessment of a Fault-bound CO2 Storage Site.
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Braathen, Alvar & Ekrene Johansen, Sindre
(2022).
Tectono-sedimentary evolution of NW parts of the Devonian Hornelen Basin, West Norway.
Universitetet i Oslo.
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Jarl, Espelund & Braathen, Alvar
(2022).
Extensional fault growth in high-resolution seismic data.
Universitetet i Oslo.