Cristin-prosjekt-ID: 615753
Sist endret: 28. september 2018 17:17

Cristin-prosjekt-ID: 615753
Sist endret: 28. september 2018 17:17
Prosjekt

Subsurface Carbonate CO2 Storage and Security

prosjektleder

Martin Fernø
ved Institutt for fysikk og teknologi ved Universitetet i Bergen

prosjekteier / koordinerende forskningsansvarlig enhet

  • Universitetet i Bergen

Finansiering

  • TotalbudsjettNOK 7.000.000
  • Norges forskningsråd
    Prosjektkode: 280341

Klassifisering

Emneord

CO2 lagring • Karbonhåndtering

Kategorier

Prosjektkategori

  • Grunnforskning

Tidsramme

Aktivt
Start: 1. februar 2018 Slutt: 31. august 2021

Beskrivelse Beskrivelse

Tittel

Subsurface Carbonate CO2 Storage and Security

Vitenskapelig sammendrag

Geological CO2 storage security is determined by the structural integrity
of the storage formation and the migratory patterns of the sequestered
CO2. This research proposal focuses on the final step in the CCS (carbon
capture and storage) value chain - injection and subsurface storage of
CO2 - with emphasis on carbonate geological systems. Carbonate rocks
are extremely reactive, and coupled with their highly heterogeneous pore
structure, present a tremendously complicated reactive transport problem.
Current lack of understanding in reservoir structural integrity and CO2
migration cast doubt on estimations of long-term geologic CO2 storage. For
years, reactive transport through carbonate porous media has been modeled
as a simple function of reaction and advection. We recently investigated
reactive transport in carbonate media and found that the reaction product,
CO2, forms a separate, wetting phase during carbonate dissolution that
engulfs the carbonate grain and prevents further local reaction. This
mechanism was not described in the literature, and the discovery of the
new phenomenon impacts estimation of preferential CO2 flow path in
carbonate storage formations. The project will expand the existing knowledge
on this topic to convince the public that subsurface CCS is vital for a
transition to a less fossil-fuel dependent society. The proposal has two work
packages that emphasize flow and CO2 trapping mechanisms in a carbonate
geological storage site at two different length scales using new, sophisticated
experimental tools developed by the research team: 1) pore-scale reactive
flow in geochemically representative μ-models; and, 2) reactive flow patterns
on core-scale using explicit CO2 tracking with positron emission tomography.

 

The CCS context of the research project will naturally focus on flow in CO2
storage sites, but the research will also be highly relevant for groundwater
flow, deposit of radioactive waste, oil recovery, and contamination in soils.

Metode

Primary objectives
Expand the existing knowledge on reactive flow in carbonates in the CCS
context to improve current models that evaluate CO2 storage potential and
provide security and leakage estimates.
Secondary objectives
Develop a conceptual model for reactive flow in carbonate reservoirs in a
CCS context that incorporates the new dissolution flow mechanism, with a
separate, wetting phase CO2 isolation layer that dictates local flow patterns.
Use integration of multi-scale experiments from the pore-level to Darcy-scale
to gain fundamental knowledge on CCS reactive flow in carbonates that may
also be applied outside the CCS community.
Establish best practice procedures for the use of functionalized micro-models
and positron emission tomography that enable the wider scientific community
to take a

prosjektdeltakere

prosjektleder

Martin Fernø

  • Tilknyttet:
    Prosjektleder
    ved Institutt for fysikk og teknologi ved Universitetet i Bergen

Malin Haugen

  • Tilknyttet:
    Prosjektdeltaker
    ved Institutt for fysikk og teknologi ved Universitetet i Bergen

Bergit Brattekås

  • Tilknyttet:
    Prosjektdeltaker
    ved Institutt for fysikk og teknologi ved Universitetet i Bergen

Anthony R. Kovscek

  • Tilknyttet:
    Prosjektdeltaker
    ved Stanford University

Holger Ott

  • Tilknyttet:
    Prosjektdeltaker
    ved Montanuniversität Leoben
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Resultater Resultater

Fysikk TV.

Fernø, Martin; Brattekås, Bergit. 2019, UIBProgramledelse

Numerical simulation of sweep efficiency by CO2-Foam EOR.

Kristiansen, Stine. 2018, UIBMastergradsoppgave

An experimental investigation of gas production rates during depressurization of sedimentary methane hydrates.

Almenningen, Stian; Fotland, Per; Fernø, Martin; Ersland, Geir. 2018, Society of Petroleum Engineers. EQU, UIBVitenskapelig Kapittel/Artikkel/Konferanseartikkel
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