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Exploring High Temperature reservoirs: new challenges for geothermal energy - Volterra, Italy, Workshop2
Exploring High Temperature reservoirs: new challenges for geothermal energy - Volterra, Italy, Workshop2
1-4 April 2007 Volterra, Tuscany, Italy
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Preliminary results from fracturation analysis on an analogue granitic batholith and "direct broadcast" of the VSP acquisition at Soultz-sous-Forêts geothermal site
by Joachim Place, Edouard Le Garzic, Yves Geraud, Marc Diraison (EOST, 
Strasbourg, France)
Charles Naville (IFP, Paris, France)
André Gérard (EEIG, Soultz-sous-Forêts, France)
Rosa Maria Sanchez, Albert Casas (UB, Barcelona, Spain)

At Soultz-sous-Forêts geothermal site, the fluid flow paths between the 
injection and the production boreholes are mainly composed by a set of 
permeable structures, occuring from the hectometric to micrometric scales. The 
objective of our work is to define the architecture of these paths within the 
heat exchanger, which is difficult due to the great depth of the hot granite.

Thus we will expose the present day development of our work organised in two 
different domains:

First, an outcropping batholith located in Catalunya presenting strong 
analogies with the geothermal reservoir in Soultz-sous-Forêts is studied. The 
preliminary results of a detailed fracturation analysis will be presented. A 
special attention is paid to fault zones, studied at different scales (from 
decimeter to centimeter), thus enhancing different fracturation domains (fault 
core, damaged zone, protolith) resulting in diffferent behaviour regarding fluid 
flow for geothermal exploitation.

Second, the large VSP survey carried out at Soultz-sous-Forêts in March-April 
will be presented "in live". The objectives of this acquisition will be detailed (in 
particular, the sensitivity of the downhole tools to temperature and hard other 
conditions could be emphasised), and the latest news from the field work will 
be given...
Id: 27
Place: Volterra, Tuscany, Italy
Campus SIAF, SP del Monte Volterrano
Localita' Il Cipresso
Volterra, Italy
Starting date:
02-Apr-2007   14:36
Duration: 03'
Primary Authors: Mr. PLACE, Joachim (EOST Strasbourg (France))
Co-Authors: Mr. GéRAUD, Yves (EOST Strasbourg (France))
Presenters: Mr. PLACE, Joachim
Material: slides Slides
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