Extension of Duplexed Single-Ended Distributed Temperature Sensing Calibration Algorithms and Their Application in Geothermal Systems

Simple item page
dc.article.number3319
dc.catalogadorpva
dc.contributor.authorLillo Briceño, Matías
dc.contributor.authorSuárez Poch, Francisco Ignacio
dc.contributor.authorHausner, Mark B.
dc.contributor.authorYáñez Carrizo, Gonzalo Alejandro
dc.contributor.authorVeloso Espinosa, Eugenio Andrés
dc.contributor.otherCEDEUS (Chile)
dc.date.accessioned2024-09-26T14:41:30Z
dc.date.available2024-09-26T14:41:30Z
dc.date.issued2022
dc.description.abstractFiber-optic distributed temperature sensing (DTS) has been widely used since the end of the 20th century, with various industrial, Earth sciences, and research applications. To obtain precise thermal measurements, it is important to extend the currently available DTS calibration methods, considering that environmental and deployment factors can strongly impact these measurements. In this work, a laboratory experiment was performed to assess a currently available duplexed single-ended DTS calibration algorithm and to extend it in case no temperature information is available at the end of the cables, which is extremely important in geothermal applications. The extended calibration algorithms were tested in different boreholes located in the Atacama Desert and in the Central Andes Mountains to estimate the geothermal gradient in these regions. The best algorithm found achieved a root mean square error of 0.31 +/- 0.07 degrees C at the far end of a similar to 1.1-km cable, which is much smaller than that obtained using the manufacturer algorithm (2.17 +/- 0.35 degrees C). Moreover, temperature differences between single- and double-ended measurements were less than 0.3 degrees C at the far end of the cable, which results in differences of similar to 0.5 degrees C km(-1) when determining the geothermal gradient. This improvement in the geothermal gradient is relevant, as it can reduce the drilling depth by at least 700 m in the study area. Future work should investigate new extensions of the algorithms for other DTS configurations and determining the flow rate of the Central Andes Mountains artesian well using the geothermal profile provided by the DTS measurements and the available data of the borehole
dc.fechaingreso.objetodigital2024-09-26
dc.fuente.origenWOS
dc.identifier.doi10.3390/s22093319
dc.identifier.issn1424-8220
dc.identifier.urihttps://doi.org/10.3390/s22093319
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/87970
dc.identifier.wosidWOS:000795488600001
dc.information.autorucEscuela de Ingeniería; Lillo Briceño, Matías; S/I; 249562
dc.information.autorucEscuela de Ingeniería; Suárez Poch, Francisco Ignacio; 0000-0002-4394-957X; 15891
dc.information.autorucEscuela de Ingeniería; Yáñez Carrizo, Gonzalo Alejandro; 0000-0003-0183-9775; 1008795
dc.information.autorucEscuela de Ingeniería; Veloso Espinosa, Eugenio Andrés; 0000-0001-7603-4854; 1025241
dc.issue.numero9
dc.language.isoen
dc.nota.accesocontenido completo
dc.pagina.final21
dc.pagina.inicio1
dc.publisherMDPI
dc.revistaSensors
dc.rightsacceso abierto
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectDTS
dc.subjectGeothermal exploration
dc.subjectCalibration algorithms
dc.subjectDuplexed single-ended
dc.subjectBorehole temperature measurements
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.subject.ods07 Affordable and clean energy
dc.subject.ods13 Climate action
dc.subject.odspa07 Energía asequible y no contaminante
dc.subject.odspa13 Acción por el clima
dc.titleExtension of Duplexed Single-Ended Distributed Temperature Sensing Calibration Algorithms and Their Application in Geothermal Systems
dc.typeartículo
dc.volumen22
sipa.codpersvinculados249562
sipa.codpersvinculados15891
sipa.codpersvinculados1008795
sipa.codpersvinculados1025241
sipa.trazabilidadWOS;2022-07-08
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
sensors-22-03319-v2.pdf
Size:
2.63 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas
CEDEUS