Limits...
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.


Schematic representation of a “composite log” of one of the boreholes in “Akabli 02”
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Fig9: Schematic representation of a “composite log” of one of the boreholes in “Akabli 02”

Mentions: Coverage of these reservoirs is provided by Silurian clays, which are regionally well developed and provide a good coverage of the Cambro–Ordovician reservoirs. The base of these clays is highly radioactive with abnormally high pressures, increasing their coverage effectiveness. The Tournai reservoir sandstones are covered by Tournaisian and Namurian clays, and the Middle and Upper Devonian clays provide a caprock for the Gedinnian and Siegenien sandstones (Fig. 9).Fig. 9


CO2-storage assessment and effective capacity in Algeria.

Aktouf A, Bentellis A - Springerplus (2016)

Schematic representation of a “composite log” of one of the boreholes in “Akabli 02”
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

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

Fig9: Schematic representation of a “composite log” of one of the boreholes in “Akabli 02”
Mentions: Coverage of these reservoirs is provided by Silurian clays, which are regionally well developed and provide a good coverage of the Cambro–Ordovician reservoirs. The base of these clays is highly radioactive with abnormally high pressures, increasing their coverage effectiveness. The Tournai reservoir sandstones are covered by Tournaisian and Namurian clays, and the Middle and Upper Devonian clays provide a caprock for the Gedinnian and Siegenien sandstones (Fig. 9).Fig. 9

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.