Impact of Integrated Clean Energy on the Future of the Mediterranean Exploitation of albian geothermal water in South Algeria

Salima Ouali, Zahia Benaïssa, Maïouf Belhamel, Abdellah Khellaf, Kamel Baddari, Mebrouk Djeddi
Energy Procedia, Volume 6, 2011, Pages 102-110

Abstract

The Intercalary Continental aquifer generally called Albian aquifer constitutes the main geothermal resource in south Algeria (Fig.1). Additionally it represents the biggest water reserve in the word. Shared between Algeria, Tunisia and Libya, the Albian nappe extends in its largest area in Algeria (over 650 000 km2). The sandstone reservoir outcrops in the South-West of the nappe (regions of Adrar, In Salah and In Amenas) and subsidy more to the North-Est, where depths are maximum (regions of Biskra, El Oued, Touggourt and Ouargla). The deepest waters are warmer, so the Albian aquifer is of interest for geothermal applications in its North-Est part.

Albian aquifer is used since centuries, especially in the areas where it levels like Tidikelt Touat and Gourara located in the south part of the nappe. But however in other areas where this aquifer is deep and whose water is hot, the exploitation of the aquifer is rather difficult.

As the only geothermal resource in southern Algeria, therefore good knowledge of the different routes of its exploitations is necessary to facilitate future applications of geothermal in the Saharan regions. The present article gives an overview about various modes of exploitation of the Intercalary Continental aquifer and the major problems which have occurred during exploitation. Finally is added a discussion about the main applications of geothermal energy in South Algeria based on projects completed or in progress.

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