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The use of DTS systems for temperature logging in deep boreholes
Štěpánek, Václav ; Dědeček, Petr (advisor) ; Vlček, Josef (referee)
Title: The use of DTS systems for temperature logging in deep boreholes. Author: Václav Štěpánek Department: Institute of Hydrogeology, Engineering Geology and Applied Geophysics Supervisor: Mgr. Petr Dědeček, Ph.D., GFÚ AV ČR Abstract: The signifcance of deep geothermal energy is progressively growing, similar to the extraction of unconventional oil and gas reserves, which involves the drilling of deviated wells in regions with elevated temperatures. Temperature measurements play a fundamental role in exploration, drilling, and subsequent monitoring, with equipment evolving due to technological advancements, particu- larly in temperature measurement capabilities. The aim of this thesis is to focus on a Distributed Temperature Sensing (DTS) system that utilizes fber optic technology for temperature logging. Specifcally, these fber optic sensors enable continuous profle measurements in real time, which is well-suited for capturing dynamic changes in the temperature feld. Simultaneously, fber optic cables demon- strate durability and reliability, making them suitable for permanent installations in high-temperature, high-pressure, and highly corrosive environments. The resul- ting variability in deployment enables adaptation within the measurement context. In deep borehole measurements, the DTS can be...
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