RT info:eu-repo/semantics/article
T1 Geophysical exploration for shallow geothermal applications: A case study in Artà, (Balearic Islands, Spain)
A1 Blázquez, Cristina Sáez
A1 Nieto, Ignacio Martín
A1 Maté González, Miguel Ángel
A1 García, Pedro Carrasco
A1 Martín, Arturo Farfán
A1 González-Aguilera, Diego
A2 Ingenieria Electrica
K1 Electrotecnia
K1 Shallow geothermal energy
K1 Electrical resistivity tomography
K1 Geophysics
K1 GES-CAL software
K1 Thermal behavior
K1 Geothermal design
AB [EN] Within the installation of a shallow geothermal system, the lack of information on the subsoil frequently leads to errors in the design of the geothermal wellfield. This research presents the application of geophysics, combining 2D and 3D electrical resistivity tomography surveys and the geological information of a certain area for defining the structural distribution of the underground. Processed electrical resistivity data allow elucidating possible geological units and the thermal behavior of the in-depth materials. Two different assumptions (with different locations of the wells) are designed by using the specific geothermal software GES-CAL. Results show, that Case 1 (based on the geophysical results, so avoiding complex areas) allows the reduction of the global drilling length, and hence, the general initial investment of the system (around 20% lower). Meanwhile, Case 2 (without considering the geophysics) is less economically advantageous and could also present technical difficulties during the drilling process, as well as the possible alteration to the normal system operation. The study highlights the benefits of geophysics as an effective approach to characterize the underground and to help to understand its thermal behavior, which is, in turn, crucial for a proper geothermal design.
PB Elsevier
SN 0375-6505
LK http://hdl.handle.net/10612/15053
UL http://hdl.handle.net/10612/15053
NO Blázquez, C. S., Nieto, I. M., Maté González, M. Á., García, P. C., Martín, A. F., & González-Aguilera, D. (2022). Geophysical exploration for shallow geothermal applications: A case study in Artà, (Balearic Islands, Spain). Geothermics, 105, 102517. https://doi.org/10.1016/j.geothermics.2022.102517
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 26-abr-2024