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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.


Example of a seismic profile collected across “Tidikelt North” and its interpretation. The line location is shown in Fig. 1a
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Fig6: Example of a seismic profile collected across “Tidikelt North” and its interpretation. The line location is shown in Fig. 1a

Mentions: Tidikelt North is located in the Ahnet Basin, specifically in the Ouallen Sub-Basin, which is bound to the east and west by large collisions and is filled by a thick sedimentary series of more than 7000 m, including lower outcrops to the east and west that represent one of the main structural elements in the field. Drilling and seismic studies established in the region show purple surmounted by a series of Cambro–Ordovician or infra-tasilienne unconformities located at a depth of 1200 m with a thickness of 700 m and an oblique stratification (Fig. 6).Fig. 6


CO2-storage assessment and effective capacity in Algeria.

Aktouf A, Bentellis A - Springerplus (2016)

Example of a seismic profile collected across “Tidikelt North” and its interpretation. The line location is shown in Fig. 1a
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

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

Fig6: Example of a seismic profile collected across “Tidikelt North” and its interpretation. The line location is shown in Fig. 1a
Mentions: Tidikelt North is located in the Ahnet Basin, specifically in the Ouallen Sub-Basin, which is bound to the east and west by large collisions and is filled by a thick sedimentary series of more than 7000 m, including lower outcrops to the east and west that represent one of the main structural elements in the field. Drilling and seismic studies established in the region show purple surmounted by a series of Cambro–Ordovician or infra-tasilienne unconformities located at a depth of 1200 m with a thickness of 700 m and an oblique stratification (Fig. 6).Fig. 6

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.