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CO2-storage assessment and effective capacity in Algeria.

Aktouf A, Bentellis A - Springerplus (2016)

Bottom Line: To reduce CO2 emissions, these basins were analyzed to identify those with the largest potential for the geological sequestration of CO2 (GSC).Estimations of the CO2 storage capacities of several structures in the sedimentary Ahnet-Gourara Basin, which has the greatest potential for GSC, vary from 1 Gt to over 5 Gt.Based on cautious estimations, these geologic structures should be able to contain the entire volume of the CO2 emitted over the next three decades at least.

View Article: PubMed Central - PubMed

Affiliation: Houari Boumediene University of Sciences and Technology, Bab Ezzouar, Algeria.

ABSTRACT
Deep saline aquifers widely distributed deep in the earth offer the greatest CO2 storage potential in all current geological CO2 storage approaches. The western region of the Saharan platform in Algeria includes several sedimentary basins characterized by a large production of dry gas with high CO2 rates sometimes exceeding 9 %. To reduce CO2 emissions, these basins were analyzed to identify those with the largest potential for the geological sequestration of CO2 (GSC). The evaluation methodology applied to determine the basin potential is based on qualitative geological and practical criteria to which we have assigned normalized numerical values. This evaluation method allows us to quantitatively compare and evaluate the basins in Algeria. Estimations of the CO2 storage capacities of several structures in the sedimentary Ahnet-Gourara Basin, which has the greatest potential for GSC, vary from 1 Gt to over 5 Gt. Based on cautious estimations, these geologic structures should be able to contain the entire volume of the CO2 emitted over the next three decades at least.

No MeSH data available.


a Simplified geological map of Algeria (Beuf 1971) showing the location of the 12 potential areas suitable for CO2 geological storage (dark blue areas). b Locations of 2D seismic lines, 3D seismic survey areas and wells used for modeling. c The location of the major CO2 point sources (emissions >0.1 Mt/year) in the southwest part of Algeria; the values were calculated based on the dry gas production in the various fields
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Fig1: a Simplified geological map of Algeria (Beuf 1971) showing the location of the 12 potential areas suitable for CO2 geological storage (dark blue areas). b Locations of 2D seismic lines, 3D seismic survey areas and wells used for modeling. c The location of the major CO2 point sources (emissions >0.1 Mt/year) in the southwest part of Algeria; the values were calculated based on the dry gas production in the various fields

Mentions: Currently, global anthropogenic emissions amount to approximately 26 Gt/year (Herzog and Golomb 2004). In Algeria, CO2 emissions were approximately 117,310 million tons in 2000 (PNUD 2010). As an example, different sources of CO2 emissions in southwest Algeria are shown in Fig. 1b based on the production of dry gas in different sites. Currently, CO2 capture and sequestration (CCS) has attracted interest because it represents, in the medium and short terms, a viable potential solution to reduce anthropogenic CO2 emissions to the atmosphere (De Connick, et al. 2005; IEA 2013 ). In fact, CO2 sequestration technology in gas and oil reservoirs and in deep saline aquifers is already in use. Worldwide, the search for potential sites for geological CO2 sequestration is underway in sedimentary basins that are known for their geological reservoir quality (Bachu et al. 2007; Bradshaw et al. 2007; Ogawa et al. 2011; Mao et al. 2014). Fig. 1


CO2-storage assessment and effective capacity in Algeria.

Aktouf A, Bentellis A - Springerplus (2016)

a Simplified geological map of Algeria (Beuf 1971) showing the location of the 12 potential areas suitable for CO2 geological storage (dark blue areas). b Locations of 2D seismic lines, 3D seismic survey areas and wells used for modeling. c The location of the major CO2 point sources (emissions >0.1 Mt/year) in the southwest part of Algeria; the values were calculated based on the dry gas production in the various fields
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4940307&req=5

Fig1: a Simplified geological map of Algeria (Beuf 1971) showing the location of the 12 potential areas suitable for CO2 geological storage (dark blue areas). b Locations of 2D seismic lines, 3D seismic survey areas and wells used for modeling. c The location of the major CO2 point sources (emissions >0.1 Mt/year) in the southwest part of Algeria; the values were calculated based on the dry gas production in the various fields
Mentions: Currently, global anthropogenic emissions amount to approximately 26 Gt/year (Herzog and Golomb 2004). In Algeria, CO2 emissions were approximately 117,310 million tons in 2000 (PNUD 2010). As an example, different sources of CO2 emissions in southwest Algeria are shown in Fig. 1b based on the production of dry gas in different sites. Currently, CO2 capture and sequestration (CCS) has attracted interest because it represents, in the medium and short terms, a viable potential solution to reduce anthropogenic CO2 emissions to the atmosphere (De Connick, et al. 2005; IEA 2013 ). In fact, CO2 sequestration technology in gas and oil reservoirs and in deep saline aquifers is already in use. Worldwide, the search for potential sites for geological CO2 sequestration is underway in sedimentary basins that are known for their geological reservoir quality (Bachu et al. 2007; Bradshaw et al. 2007; Ogawa et al. 2011; Mao et al. 2014). Fig. 1

Bottom Line: To reduce CO2 emissions, these basins were analyzed to identify those with the largest potential for the geological sequestration of CO2 (GSC).Estimations of the CO2 storage capacities of several structures in the sedimentary Ahnet-Gourara Basin, which has the greatest potential for GSC, vary from 1 Gt to over 5 Gt.Based on cautious estimations, these geologic structures should be able to contain the entire volume of the CO2 emitted over the next three decades at least.

View Article: PubMed Central - PubMed

Affiliation: Houari Boumediene University of Sciences and Technology, Bab Ezzouar, Algeria.

ABSTRACT
Deep saline aquifers widely distributed deep in the earth offer the greatest CO2 storage potential in all current geological CO2 storage approaches. The western region of the Saharan platform in Algeria includes several sedimentary basins characterized by a large production of dry gas with high CO2 rates sometimes exceeding 9 %. To reduce CO2 emissions, these basins were analyzed to identify those with the largest potential for the geological sequestration of CO2 (GSC). The evaluation methodology applied to determine the basin potential is based on qualitative geological and practical criteria to which we have assigned normalized numerical values. This evaluation method allows us to quantitatively compare and evaluate the basins in Algeria. Estimations of the CO2 storage capacities of several structures in the sedimentary Ahnet-Gourara Basin, which has the greatest potential for GSC, vary from 1 Gt to over 5 Gt. Based on cautious estimations, these geologic structures should be able to contain the entire volume of the CO2 emitted over the next three decades at least.

No MeSH data available.