Experimental study for evaluation of a suitable ground displacement monitoring system: Pilot hole Campi Flegrei Deep Drilling Project case

2013 ◽  
Author(s):  
U. Tammaro ◽  
M. Dolce ◽  
G. Brandi ◽  
A. D'Alessandro ◽  
F. Obrizzo ◽  
...  
Keyword(s):  
Experimental Study ◽  
Monitoring System ◽  
Campi Flegrei ◽  
Displacement Monitoring ◽  
Ground Displacement ◽  
Deep Drilling ◽  
Pilot Hole ◽  
Drilling Project

scholarly journals Review of Recent Drilling Projects in Unconventional Geothermal Resources at Campi Flegrei Caldera, Cornubian Batholith and Williston Sedimentary Basin

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3306
Author(s):  
Renato Somma ◽  
Daniela Blessent ◽  
Jasmin Raymond ◽  
Madeline Constance ◽  
Lucy Cotton ◽  
...  
Keyword(s):  
Renewable Energy Sources ◽  
Lessons Learned ◽  
Campi Flegrei ◽  
Geothermal Resources ◽  
Scientific Drilling ◽  
Pilot Hole ◽  
The United Kingdom ◽  
Extensional Faulting ◽  
Drilling Site ◽  
Drilling Project

Unconventional geothermal resource development can contribute to increase power generation from renewable energy sources in countries without conventional hydrothermal reservoirs, which are usually associated with magmatic activity and extensional faulting, as well as to expand the generation in those regions where conventional resources are already used. Three recent drilling experiences focused on the characterization of unconventional resources are described and compared: the Campi Flegrei Deep Drilling Project (CFDDP) in Italy, the United Downs Deep Geothermal Power (UDDGP) project in the United Kingdom, and the DEEP Earth Energy Production in Canada. The main aspects of each project are described (geology, drilling, data collection, communication strategies) and compared to discuss challenges encountered at the tree sites considered, including a scientific drilling project (CFDDP) and two industrial ones (UDDGP and DEEP). The first project, at the first stage of pilot hole, although not reaching deep supercritical targets, showed extremely high, very rare thermal gradients even at shallow depths. Although each project has its own history, as well as social and economic context, the lessons learned at each drilling site can be used to further facilitate geothermal energy development.

Establishment and Application of the Pipeline Monitoring System in Permafrost Regions in China

2020 ◽  
Author(s):  
Jianping Liu ◽  
Pengchao Chen ◽  
Hong Zhang ◽  
Baodong Wang ◽  
Xiaoben Liu
Keyword(s):  
Temperature Field ◽  
Soil Temperature ◽  
Monitoring System ◽  
Field Monitoring ◽  
Measurement Unit ◽  
Displacement Monitoring ◽  
Ground Displacement ◽  
Oil Pipeline ◽  
Strain Monitoring ◽  
Permafrost Regions

Abstract Buried pipelines in permafrost regions are inevitably subjected to some typical geohazards, such as frost heave, thaw settlement and thaw slumping. The bending or/and longitudinal strains will be induced in pipe under these types ground movement, which is the potential cause of weld joint rupture. Thus, in order to prevent pipe failure, a comprehensive monitoring system was designed and used in the Mohe-Daqing oil pipeline in the permafrost region in northeast China. The Mohe-Daqing oil pipeline is built for importing oil from Russia and its north part of 440km lays in permafrost. The monitoring system includes soil temperature field monitoring system, ground displacement monitoring system and pipe strain monitoring system. The soil temperature field monitoring system, which uses fiber brag grating sensors, can monitor the distribution of surrounding soil temperature in radial direction of pipe in order to detect the change of active ring of permafrost. The ground displacement monitoring system, which is based on a total station, can discover any subsidence or heave of the pipe itself and the embankment along the pipeline. The pipe strain monitoring system, which includes pipe stress monitoring system based on fiber brag grating sensors and inertial measurement unit (IMU) mapping, can inspect the real-time change of pipe stress and the bending strain periodically respectively. Using the comprehensive monitoring system, the important parameters that affect pipeline integrity such as pipeline temperature, stress, strain and displacement of Mohe-Daqing oil pipeline can be supervised timely and effectively. And the accuracy and reliability of the monitoring system have been verified in practical application. In this paper, detail about how these systems are designed and installed on the Mohe-Daqing oil pipeline is elucidated and the monitoring data is analyzed. Through these data, the present mechanical situation of Mohe-Daqing oil pipeline is safe, but the long-term change is critical because of the soaring oil temperature that is far high than the design temperature. The monitoring system is of great significance to ensure the safe operation of Mohe-Daqing pipeline and can provide reference for the pipeline operation in permafrost areas.

scholarly journals The Campi Flegrei Deep Drilling Project

2007 ◽  
Vol 4 ◽  
pp. 48-50 ◽  
Author(s):  
G. De Natale ◽  
C. Troise ◽  
M. Sacchi
Keyword(s):  
Campi Flegrei ◽  
Deep Drilling ◽  
Drilling Project

No abstract available. <br><br> doi:<a href="http://dx.doi.org/10.2204/iodp.sd.4.15.2007" target="_blank">10.2204/iodp.sd.4.15.2007</a>

scholarly journals Long-Term Monitoring with Fiber Optics Distributed Temperature Sensing at Campi Flegrei: The Campi Flegrei Deep Drilling Project

Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1009
Author(s):  
Renato Somma ◽  
Claudia Troise ◽  
Luigi Zeni ◽  
Aldo Minardo ◽  
Alessandro Fedele ◽  
...  
Keyword(s):  
Fiber Optics ◽  
Large City ◽  
Temperature Sensing ◽  
Campi Flegrei ◽  
Volcanic Area ◽  
Distributed Temperature Sensing ◽  
Deep Drilling ◽  
Deep Well ◽  
Volcanic Monitoring ◽  
Drilling Project

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 and aggressive environmental conditions. In this paper, we describe a fiber optics Distributed Temperature Sensing (DTS) sensor, which has been designed to continuously measure temperature all along a 500 m. deep well drilled in the west side of Naples (Bagnoli area), lying in the Campi Flegrei volcanic area. It has then been installed as part of the international ‘Campi Flegrei Deep Drilling Project’, and is continuously operating, giving insight on the time variation of temperature along the whole borehole depth. Such continuous monitoring of temperature can in turn indicate volcanic processes linked to magma dynamics and/or to changes in the hydrothermal system. The developed monitoring system, working at bottom temperatures higher than 100 °C, demonstrates the feasibility and effectiveness of using DTS for borehole volcanic monitoring.

scholarly journals The Campi Flegrei deep drilling project (CFDDP): Caldera structure and hazard

2017 ◽  
Vol 7 (3) ◽  
pp. 443-448
Author(s):  
De Natale Giuseppe ◽  
Troise Claudia ◽  
Somma Renato ◽  
Giovanni Perillo
Keyword(s):  
Campi Flegrei ◽  
Deep Drilling ◽  
Drilling Project

Long-Term Monitoring with Fiber Optics Distributed Temperature Sensing at Campi Flegrei: The Campi Flegrei Deep Drilling Project

2020 ◽  
Author(s):  
Renato Somma ◽  
Claudia Troise ◽  
Luigi Zeni ◽  
Alessandro Minardo ◽  
Alessandro Fedele ◽  
...  
Keyword(s):  
Fiber Optics ◽  
Large City ◽  
Temperature Sensing ◽  
Campi Flegrei ◽  
Volcanic Area ◽  
Distributed Temperature Sensing ◽  
Deep Drilling ◽  
Deep Well ◽  
Volcanic Monitoring ◽  
Drilling Project

&lt;p&gt;&lt;span&gt;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, including 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 and aggressive environmental conditions. In this paper, we describe a fiber optics DTS (Distributed Temperature Sensing) sensor, which has been designed to continuously measure temperature all along a 500 m. deep well drilled in the West side of Naples (Bagnoli area), lying in the Campi Flegrei volcanic area. It has been then installed as part of the international &amp;#8216;Campi Flegrei Deep Drilling Project&amp;#8217;, and is continuously operating, giving insight on the time variation of temperature along the whole borehole depth. Such continuous monitoring of temperature can in turn indicate volcanic processes linked to magma dynamics and/or to changes in the hydrothermal system. The developed monitoring system, working at bottom temperatures higher than 100 &amp;#176;C, demonstrates the feasibility and effectiveness of using DTS for borehole volcanic monitoring.&lt;/span&gt;&lt;/p&gt;

scholarly journals The Campi Flegrei Deep Drilling Project (CFDDP): New insight on caldera structure, evolution and hazard implications for the Naples area (Southern Italy)

2016 ◽  
Vol 17 (12) ◽  
pp. 4836-4847 ◽  
Author(s):  
Giuseppe De Natale ◽  
Claudia Troise ◽  
Darren Mark ◽  
Angela Mormone ◽  
Monica Piochi ◽  
...  
Keyword(s):  
Southern Italy ◽  
Campi Flegrei ◽  
Structure Evolution ◽  
Deep Drilling ◽  
Drilling Project
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