2019
DOI: 10.3390/s19051009
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Long-Term Monitoring with Fiber Optics Distributed Temperature Sensing at Campi Flegrei: The Campi Flegrei Deep Drilling Project

Abstract: Monitoring volcanic phenomena is a key question, for both volcanological research and for civil protection purposes. This is particularly true in densely populated volcanic areas, like the Campi Flegrei caldera, which includes part of the large city of Naples (Italy). Borehole monitoring of volcanoes is the most promising way to improve classical methods of surface monitoring, although not commonly applied yet. Fiber optics technology is the most practical and suitable way to operate in such high temperature a… Show more

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Cited by 13 publications
(3 citation statements)
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“…Following the results of the pilot hole, a further well, specifically aimed to find the areas of highest temperature gradients at very shallow depths, and hence the most suitable for inexpensive and powerful geothermal exploitation, was drilled in the Agnano-Pisciarelli area (red triangle in Figure 1). The measured temperature-depth profiles of the two wells are shown in Figure 5 [39]. The Agnano borehole samples the area of highest shallow geothermal gradient, with temperature exceeding 110 • C found at only 88 m of depth, showing the very high potential of this area, already quantified by Reference [19], even at very modest and inexpensive depths.…”
Section: From the Pilot Hole To The Deep Drillingmentioning
confidence: 83%
“…Following the results of the pilot hole, a further well, specifically aimed to find the areas of highest temperature gradients at very shallow depths, and hence the most suitable for inexpensive and powerful geothermal exploitation, was drilled in the Agnano-Pisciarelli area (red triangle in Figure 1). The measured temperature-depth profiles of the two wells are shown in Figure 5 [39]. The Agnano borehole samples the area of highest shallow geothermal gradient, with temperature exceeding 110 • C found at only 88 m of depth, showing the very high potential of this area, already quantified by Reference [19], even at very modest and inexpensive depths.…”
Section: From the Pilot Hole To The Deep Drillingmentioning
confidence: 83%
“…Initial testing of long-term temperature measurement using DTS systems was carried out in the area of Campi Flegrei caldera which includes a part of the large city of Naples (Italy). 500 m deep wells with high temperatures of about 100 • C were measured in an area with volcanic activity [24]. The installation for 8 days and temperature measurement using the DTS system were carried out in geothermal wells in the production state.…”
Section: Residential Houses <50mentioning
confidence: 99%
“…In active volcanoes, one way in which this geothermal energy is revealed is in the form of fumaroles, i.e., vents in the Earth’s surface from which steam and volcanic gases are emitted, normally at temperatures between 70 and 100 [ 1 ]. Monitoring these fumaroles in conjunction with other precursors is of great importance in order to predict volcanic eruptions [ 2 , 3 , 4 ]. Nevertheless, the power supply of the required equipment is a challenge due to the habitual remoteness of volcanoes.…”
Section: Introductionmentioning
confidence: 99%