High Frequency 3D FWI at Sleipner: A Closer Look at the CO2 Plume

Mispel, J.; Furre, Anne-Kari; Sollid, A.; Maaø, Frank A.

doi:10.3997/2214-4609.201901566

Cited by 4 publications

(3 citation statements)

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“…Another possible benefit of the FWI imaging method is its reproducibility, given that we recover similar results from two seismic datasets collected 15 years apart. These results support the use of FWI for time‐lapse imaging and interpretation, for example, at carbon capture storage sites (Mispel et al., 2019). Variations in the velocity models over time could infer temporal changes in the presence of fluids or fluid pressure changes accompanying large earthquakes along the Hikurangi subducting margin.…”

Section: Resultssupporting

confidence: 83%

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Generating High‐Fidelity Reflection Images Directly From Full‐Waveform Inversion: Hikurangi Subduction Zone Case Study

Davy

Frahm

Bell

et al. 2021

Geophysical Research Letters

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Seismic waveforms are governed by the physical properties of the subsurface in which they propagate. Most modern conventional seismic imaging methods utilize only a small proportion of the seismic waveform, neglecting a wealth of additional information hidden within the full coda (Yilmaz, 2001). Full-waveform inversion (FWI) utilizes the entire seismic coda to produce accurate quantitative models of these governing properties (P-and S-wave velocity, attenuation, density, and anisotropy) (Tromp, 2020). First theorized in the 1980s, the FWI method looks to match the observed wavefield by iteratively updating a starting model, using linearized local inversion, to solve the full nonlinear inversion problem (Lailly & Bednar, 1983;Tarantola, 1984;Virieux & Operto, 2009). However, it took three decades for FWI to become widely utilized, particularly to higher frequencies because of its high computational requirements. Each doubling of the maximum FWI frequency requires the node spacing and sample interval to be halved, leading to an eight and 16 times increase in compute time in 2D and 3D, respectively, making high-frequency FWI prohibitively expensive. In the meantime, seismic reflection imaging has been the prime method for active-source subsurface imaging and exploration (Yilmaz, 2001).

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Section: Resultssupporting

confidence: 83%

“…(2021), 31 Hz in Mispel et al. (2019), 40 Hz in Routh et al. (2017), and 100 Hz in Kalinicheva et al.…”

Section: Introductionmentioning

confidence: 94%

Generating High‐Fidelity Reflection Images Directly From Full‐Waveform Inversion: Hikurangi Subduction Zone Case Study

Davy

Frahm

Bell

et al. 2021

Geophysical Research Letters

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“…Typical examples of such waves are head-waves and diving waves. In full-waveform inversion (FWI), such waves play an important role in stabilizing the seismic inversion process (108,109).…”

Section: Monitoring To Optimize and Confirm Successful Storagementioning

confidence: 99%

Storage of Carbon Dioxide in Saline Aquifers: Physicochemical Processes, Key Constraints, and Scale-Up Potential

Ringrose

Furre

Gilfillan

et al. 2021

Annu. Rev. Chem. Biomol. Eng.

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CO2 storage in saline aquifers offers a realistic means of achieving globally significant reductions in greenhouse gas emissions at the scale of billions of tonnes per year. We review insights into the processes involved using well-documented industrial-scale projects, supported by a range of laboratory analyses, field studies, and flow simulations. The main topics we address are ( a) the significant physicochemical processes, ( b) the factors limiting CO2 storage capacity, and ( c) the requirements for global scale-up. Although CO2 capture and storage (CCS) technology can be considered mature and proven, it requires significant and rapid scale-up to meet the objectives of the Paris Climate Agreement. The projected growth in the number of CO2 injection wells required is significantly lower than the historic petroleum industry drill rates, indicating that decarbonization via CCS is a highly credible and affordable ambition for modern human society. Several technology developments are needed to reduce deployment costs and to stimulate widespread adoption of this technology, and these should focus on demonstration of long-term retention and safety of CO2 storage and development of smart ways of handling injection wells and pressure, cost-effective monitoring solutions, and deployment of CCS hubs with associated infrastructure. Expected final online publication date for the Annual Review of Chemical and Biomolecular Engineering, Volume 12 is June 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Sleipner 26 years: how well-established subsurface monitoring work processes have contributed to successful offshore CO ₂ injection

Furre,

Warchoł,

Alnes

et al. 2024

Geoenergy

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In August 2022, the world's longest running offshore industrial CO 2 injection project celebrated its 26-year anniversary. During these years, the Sleipner CO 2 injection project has been invaluable in demonstrating that offshore CO 2 storage is feasible, safe, and efficient. We will here show how time-lapse seismic monitoring of the CO 2 plume development has revealed depositional architecture in the Utsira Formation, and how thin mudstone layers have contributed to distributing the CO 2 in a larger rock volume, promoting trapping by dissolution. The relatively shallow depth (800-1000 m) of Utsira Formation in the Sleipner area also makes the Sleipner CO 2 injection site a good proxy for understanding the effects of overburden stratigraphy for deeper injection sites, giving important knowledge of detectability of thin, shallow CO 2 accumulations. Finally, we will show how the experience from Sleipner CO 2 injection has built confidence when planning monitoring programmes for future CO 2 injection sites. Thematic collection: This article is part of the Geoscience workflows for CO 2 storage collection available at: https://www.lyellcollection.org/topic/collections/geoscience-workflows-for-CO2-storage

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High Frequency 3D FWI at Sleipner: A Closer Look at the CO2 Plume

Cited by 4 publications

References 0 publications

Generating High‐Fidelity Reflection Images Directly From Full‐Waveform Inversion: Hikurangi Subduction Zone Case Study

Generating High‐Fidelity Reflection Images Directly From Full‐Waveform Inversion: Hikurangi Subduction Zone Case Study

Storage of Carbon Dioxide in Saline Aquifers: Physicochemical Processes, Key Constraints, and Scale-Up Potential

Sleipner 26 years: how well-established subsurface monitoring work processes have contributed to successful offshore CO ₂ injection

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High Frequency 3D FWI at Sleipner: A Closer Look at the CO2 Plume

Cited by 4 publications

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Generating High‐Fidelity Reflection Images Directly From Full‐Waveform Inversion: Hikurangi Subduction Zone Case Study

Generating High‐Fidelity Reflection Images Directly From Full‐Waveform Inversion: Hikurangi Subduction Zone Case Study

Storage of Carbon Dioxide in Saline Aquifers: Physicochemical Processes, Key Constraints, and Scale-Up Potential

Sleipner 26 years: how well-established subsurface monitoring work processes have contributed to successful offshore CO 2 injection

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Product

Resources

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Sleipner 26 years: how well-established subsurface monitoring work processes have contributed to successful offshore CO ₂ injection