Storage of CO2 in saline aquifers–Lessons learned from 10 years of injection into the Utsira Formation in the Sleipner area

Hermanrud, Christian; Andresen, Terje; Eiken, Ola; Hansen, Hilde; Janbu, A.D.; Lippard, J.; Bolås, Hege Nordgård; Simmenes, T. H.; Teige, Gunn M. G.; Østmo, S.

doi:10.1016/j.egypro.2009.01.260

Cited by 75 publications

(46 citation statements)

References 6 publications

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“…CO 2 injection in aquifer formations is governed by several trapping mechanisms such as (i) structural trapping, (ii) dissolution trapping, and (iii) mineral trapping [4,5]. In structural trapping, pure-phase CO 2 is trapped in the pore space and cannot rise to the surface due to physical (caprock) and/or hydrodynamic barriers.…”

Section: Introductionmentioning

confidence: 99%

Interfacial tension between CO2 and brine (NaCl+CaCl2) at elevated pressures and temperatures: The additive effect of different salts

Aggelopoulos

Robin

Vizika

2011

Advances in Water Resources

120

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Section: Introductionmentioning

confidence: 99%

Interfacial tension between CO2 and brine (NaCl+CaCl2) at elevated pressures and temperatures: The additive effect of different salts

Aggelopoulos

Robin

Vizika

2011

Advances in Water Resources

120

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“…Seismic survey is the most effective method that has been implemented in the well-known world's largest CO 2 storage project in the Norwegian North Sea (Sleipner) for monitoring injected CO 2 plume. This method enables observation from the surface of the formation and migrating of CO 2 , injected into the storage site, under impermeable layers (Chadwick et al, 2009;Hermanrud et al, 2009;Alnes et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Potential structures for CO<sub>2</sub> geological storage in the Baltic Sea: Case study offshore Latvia

Shogenov¹,

Shogenova²,

Vizika-Kavvadias³

2013

Bull Geol Soc Finland

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This study is focused on two structures in the Baltic offshore region (E6 and E7 structures in Latvia) prospective for the geological storage of carbon dioxide (CO 2 ). Their CO 2 storage capacities were estimated recently with different levels of reliability. Petrophysical, geophysical, mineralogical and geochemical parameters of reservoir rocks represented by quartz sandstones of the Deimena Formation of Middle Cambrian in two wells and properties of Silurian and Ordovician cap rocks were additionally studied and interpreted in the present contribution. Extended methodology on rock measurements and estimation of conservative and optimistic storage capacity are presented. Uncertainties and risks of CO 2 storage in the offshore structure E6 estimated as the most prospective for CO 2 geological storage in the Baltic Region, and the largest among all onshore and offshore structures studied in Latvia, were discussed. We re-estimated the previous optimistic capacity of the E6 structure (265-630 Mt) to 251-602 Mt. Considering fault system within the E6 structure we estimated capacity of two compartments of the reservoir separately (E6-A and E6-B). Estimated by the optimistic approach CO 2 storage capacity of the E6-A part was 243-582 Mt (mean 365 Mt) and E6-B part 8-20 Mt (mean 12 Mt). Conservative capacity was 97-233 Mt (mean 146 Mt) in the E6-A, and 4-10 Mt (mean 6 Mt) in the E6-B. The conservative average capacity of the E6-B part was in the same range as this capacity in the E7 structure (6 and 7 Mt respectively). The total capacity of the two structures E6 and E7, estimated using the optimistic approach was on average 411 Mt, and using the conservative approach, 159 Mt.

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“…Currently, a number of CO 2 storage operations and demonstration projects (e.g., Sleipner, Norway, 1996; Weyburn, Canada, 2000; Ketzin, Germany, 2006; Cranfield, USA, 2008; Otway, Australia, 2008) have been conducted around the world [3][4][5][6][7]. The first pilot project of CO 2 capture and storage (CCS) in China, the Shenhua CCS demonstration project, successfully completed its goal of injecting CO 2 at a rate of 100,000 tons/year into the onshore saline aquifer in the Ordos Basin [8].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China

Yang¹,

Li²,

Atrens³

et al. 2017

Geofluids

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A 100,000 t/year demonstration project for carbon dioxide (CO 2 ) capture and storage in the deep saline formations of the Ordos Basin, China, has been successfully completed. Field observations suggested that the injectivity increased nearly tenfold after CO 2 injection commenced without substantial pressure build-up. In order to evaluate whether this unique phenomenon could be attributed to geochemical changes, reactive transport modeling was conducted to investigate CO 2 -water-rock interactions and changes in porosity and permeability induced by CO 2 injection. The results indicated that using porosity-permeability relationships that include tortuosity, grain size, and percolation porosity, other than typical Kozeny-Carman porosity-permeability relationship, it is possible to explain the considerable injectivity increase as a consequence of mineral dissolution. These models might be justified in terms of selective dissolution along flow paths and by dissolution or migration of plugging fines. In terms of geochemical changes, dolomite dissolution is the largest source of porosity increase. Formation physical properties such as temperature, pressure, and brine salinity were found to have modest effects on mineral dissolution and precipitation. Results from this study could have practical implications for a successful CO 2 injection and enhanced oil/gas/geothermal production in low-permeability formations, potentially providing a new basis for screening of storage sites and reservoirs.

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Storage of CO2 in saline aquifers–Lessons learned from 10 years of injection into the Utsira Formation in the Sleipner area

Cited by 75 publications

References 6 publications

Interfacial tension between CO2 and brine (NaCl+CaCl2) at elevated pressures and temperatures: The additive effect of different salts

Interfacial tension between CO2 and brine (NaCl+CaCl2) at elevated pressures and temperatures: The additive effect of different salts

Potential structures for CO<sub>2</sub> geological storage in the Baltic Sea: Case study offshore Latvia

Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China

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Storage of CO2 in saline aquifers–Lessons learned from 10 years of injection into the Utsira Formation in the Sleipner area

Cited by 75 publications

References 6 publications

Interfacial tension between CO2 and brine (NaCl+CaCl2) at elevated pressures and temperatures: The additive effect of different salts

Interfacial tension between CO2 and brine (NaCl+CaCl2) at elevated pressures and temperatures: The additive effect of different salts

Potential structures for CO<sub>2</sub> geological storage in the Baltic Sea: Case study offshore Latvia

Numerical Investigation into the Impact of CO2-Water-Rock Interactions on CO2 Injectivity at the Shenhua CCS Demonstration Project, China

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Product

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Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China