Study of Shallow Low-Enthalpy Geothermal Resources Using Integrated Geophysical Methods

• Autorzy: De Giorgi L. , Leucci G.

Identyfikatory

DOI

10.2478/s11600-014-0243-4

• Języki publikacji: EN

Abstrakty

EN

The paper is focused on low enthalpy geothermal exploration performed in south Italy and provides an integrated presentation of geological, hydrogeological, and geophysical surveys carried out in the area of municipality of Lecce. Geological and hydrogeological models were performed using the stratigraphical data from 51 wells. A ground-water flow (direction and velocity) model was obtained. Using the same wells data, the ground-water annual temperature was modeled. Furthermore, the ground surface temperature records from ten meteorological stations were studied. This allowed us to obtain a model related to the variations of the temperature at different depths in the subsoil. Integrated geophysical surveys were carried out in order to explore the low-enthalpy geothermal fluids and to evaluate the results of the model. Electrical resistivity tomography (ERT) and self-potential (SP) methods were used. The results obtained upon integrating the geophysical data with the models show a low-enthalpy geothermal resource constituted by a shallow ground-water system.

Słowa kluczowe

EN

low enthalpy; 3D geological model; 3D hydrogeological model; 3D high resolution geophysics

PL

niska entalpia; model geologiczny; model hydrogeologiczny; model 3D; wysoka rozdzielczość; geofizyka

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2015
• Tom: Vol. 63, no. 1
• Strony: 125--153
• Opis fizyczny: Bibliogr. 62 poz., rys., tab., wykr.

Twórcy

autor

De Giorgi L.

• IBAM – National Council of Research, Lecce, Italy

autor

Leucci G.

• IBAM – National Council of Research, Lecce, Italy

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