Protection of Caprock Integrity for Large-Scale CO2 Storage on the Norwegian Continental Shelf

15 Pages Posted: 12 Apr 2019 Last revised: 24 Apr 2019

See all articles by Sarah Gasda

Sarah Gasda

Uni Research; NORCE Norwegian Research Centre AS

Ivar Aavatsmark

NORCE Energy

Bahman Bohloli

Norwegian Geotechnical Institute

Helge Hellevang

University of Oslo - Department of Geosciences

Jan Nordbotten

University of Bergen - Department of Mathematics

Magnus Wangen

Institute for Energy Technology

Tore Bjørnarå

Norwegian Geotechnical Institute

Wietse Boon

University of Stuttgart

Hossein Fazeli

University of Oslo - Department of Geosciences

Trond Mannseth

NORCE Energy

Mohammad Nooraiepour

University of Oslo (UiO)

Joonsang Park

Norwegian Geotechnical Institute

Elin Skurtveit

Norwegian Geotechnical Institute; University of Oslo

Svenn Tveit

NORCE Energy

Reinier van Noort

Institute for Energy Technology

Jhabriel Varela

University of Bergen - Faculty of Mathematics and Natural Sciences

Inge Viken

Norwegian Geotechnical Institute

Sylvain Thibeau

Total

Abstract

Large-scale CO2 storage requires advanced understanding of the geomechanical response of the caprock subject to pressure build- up in the reservoir. CO2 injection into basin systems will need to approach rates of 100 Mt/y in order to achieve significant reduction in worldwide emissions and realize the large capacity of saline aquifers. High pressure build-up is expected, which may activate existing fractures and faults in the seal and create leakage pathways for the CO2 plume. New fractures may also evolve at higher pressures. To avoid creating leakage pathways for the CO2 plume, the pressure must be kept under an upper bound that is determined by the caprock weakest point or initial stress. To date, there has been great uncertainty in critical knowledge needed for planning and execution of safe large-scale CO2 storage projects. Within the PROTECT project, we advance methods and reduce uncertainty regarding the mechanical response. The research study focuses on three subareas: data collection, experimental studies and computational tasks. The studies are performed at small scale (scale of individual cracks, cm to m) and at large scale (reservoir or basin scale, 10 m to km). Data are synthesized, and a benchmark study of large-scale geomechanical simulation is performed. The Utsira Formation on the Norwegian continental shelf has been used as a common case study for integration and benchmarking activities. Finally, recommendations are made for future research based on knowledge gained in this study.

Keywords: GHGT-14

Suggested Citation

Gasda, Sarah and Aavatsmark, Ivar and Bohloli, Bahman and Hellevang, Helge and Nordbotten, Jan and Wangen, Magnus and Bjørnarå, Tore and Boon, Wietse and Fazeli, Hossein and Mannseth, Trond and Nooraiepour, Mohammad and Park, Joonsang and Skurtveit, Elin and Tveit, Svenn and van Noort, Reinier and Varela, Jhabriel and Viken, Inge and Thibeau, Sylvain, Protection of Caprock Integrity for Large-Scale CO2 Storage on the Norwegian Continental Shelf. 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14) , Available at SSRN: https://ssrn.com/abstract=3365962

Sarah Gasda (Contact Author)

Uni Research ( email )

Thormøhlensgt. 55
Mailbox 7810
Bergen, 5008
Norway

NORCE Norwegian Research Centre AS ( email )

P.O.B. 22 Nygårdstangen
Bergen, NO-5838
Norway

Ivar Aavatsmark

NORCE Energy

114 Nygårdsgaten
Bergen, 5006
Norway

Bahman Bohloli

Norwegian Geotechnical Institute

PO Box 3930 Ullevaal Stadion
Oslo, N-0855
Norway

Helge Hellevang

University of Oslo - Department of Geosciences

P.O. Box 1047
Oslo, 0316
Norway

Jan Nordbotten

University of Bergen - Department of Mathematics

P. O. Box 7803
Bergen, N-5020
Germany

Magnus Wangen

Institute for Energy Technology

PO box 40
Kjeller, NO-2027
Norway

Tore Bjørnarå

Norwegian Geotechnical Institute

PO Box 3930 Ullevaal Stadion
Oslo, N-0855
Norway

Wietse Boon

University of Stuttgart

Keplerstraße 17
D-70174 Stuttgart
Germany

Hossein Fazeli

University of Oslo - Department of Geosciences

P.O. Box 1047
Oslo, 0316
Norway

Trond Mannseth

NORCE Energy

114 Nygårdsgaten
Bergen, 5006
Norway

Mohammad Nooraiepour

University of Oslo (UiO) ( email )

P.O. Box 1047
Oslo, 0316
Norway

Joonsang Park

Norwegian Geotechnical Institute ( email )

PO Box 3930 Ullevaal Stadion
Oslo, N-0855
Norway

Elin Skurtveit

Norwegian Geotechnical Institute ( email )

PO Box 3930 Ullevaal Stadion
Oslo, N-0855
Norway

University of Oslo

PO Box 6706 St Olavs plass
Oslo, N-0317
Norway

Svenn Tveit

NORCE Energy

114 Nygårdsgaten
Bergen, 5006
Norway

Reinier Van Noort

Institute for Energy Technology

PO box 40
Kjeller, NO-2027
Norway

Jhabriel Varela

University of Bergen - Faculty of Mathematics and Natural Sciences

Norway

Inge Viken

Norwegian Geotechnical Institute

PO Box 3930 Ullevaal Stadion
Oslo, N-0855
Norway

Sylvain Thibeau

Total ( email )

Avenue Larribau
Pau, 64018
France

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