Underground study

In order to find the most suitable areas to exploit geothermal resources, surveys are conducted both on the surface and underground. The results of the survey are used to understand what are the geological, hydro-geological, thermal characteristics and the output capacity of the geothermal system.
Surface analyses include: the exam of the underground thermal conditions and the location of possible reservoirs. First of all, the geothermal gradient is measured in various points of the area and obvious signs as smoke-holes and spas are looked for. In this respect, data provided by the chemical analysis of gas and water can be very useful.
The identification of a reservoir is the most complex part of the exploration, since it calls for the integration of the results of all the geological, volcanic, geo-chemical, geo-physical (gravimetric, geo-electric, seismic, etc.) surveys previously carried out.
The underground survey is conducted by drilling a well to verify the hypotheses that have been put forward.

Special reports

  • 23 October 2013

    Carbon Footprint

    A very special footprint...

    4 November 2009

    Ecological house

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    13 May 2013

    Small steps, great footprints

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  • 18 May 2011

    Artificial photosynthesis

    The history of science and technology is packed with discoveries and inventions inspired by nature...

    27 September 2012

    Over 7 billion people on Earth

    Demographers have estimated that on 31 October 2011 world population...

    22 May 2012

    Green chemistry

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  • 18 January 2016

    Ten years of oil demand

    Eni has recently published the 14th edition of the 2015 World Oil and Gas Review...

    23 September 2019

    Everything is transformed

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    2 April 2019

    Italy’s status on renewable sources

    Renewable sources in Italy The Energy Services Operator (GSE) periodically publishes data and statistics on the renewable sources used in…

From the Multimedia section

  • energy

    Geothermal power plant

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    energy

    Energy of Earth

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    energy

    Geyser in Yellowstone Park

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  • energy

    Spas

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    energy

    Japanese macaques

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    Temperature and depth

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  • energy

    Installed power of geothermal plants in Italy

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    energy

    Diagram of a geothermal power plant

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    energy

    Geothermal energy production in Italy

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  • energy

    Geothermal power plant

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    energy

    Energy of Earth

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  • energy

    Geyser in Yellowstone Park

    Look

    energy

    Spas

    Look
  • energy

    Japanese macaques

    Look

    energy

    Temperature and depth

    Look
  • energy

    Geothermal power plant

    Look
  • energy

    Energy of Earth

    Look
  • energy

    Geyser in Yellowstone Park

    Look

Facts

  • 16 May 2011

    An artificial geyser

    Electric and thermal power produced from geothermal energy depend on the existence of underground infiltrations...

    A hydrogen house

    In Settimo, a municipality close to Turin, the first Unité d’Abitation has been created...

  • Porto Marghera Hydrogen Park

    In Porto Marghera (Venice), the Hydrogen Park was created. It is the biggest centre in the world for hydrogen production...

    Hydrogen from the sugar cane

    The Centro di Ricerca Interuniversitario per lo Sviluppo Sostenibile (CIRPS) carried out a study in Peru...

  • 14 June 2011

    Some curiosities about methane hydrates

    The melting of the ice cells, not only brings about the release of methane gas, but it also produces another…

    16 May 2011

    The “wave-swallowing” dragon

    Wave Dragon, that swallows waves and generates electricity is a plant...

  • An artificial geyser

    Electric and thermal power produced from geothermal energy depend on the existence of underground infiltrations...

  • A hydrogen house

    In Settimo, a municipality close to Turin, the first Unité d’Abitation has been created...

  • Porto Marghera Hydrogen Park

    In Porto Marghera (Venice), the Hydrogen Park was created. It is the biggest centre in the world for hydrogen production...