Innovative System for the Measurement of Temperature and Pressure in Geothermal Wells
- Key words
- pressure-temperature measurements, high temperature measurements, geothermal logging tools
- Conference
- World Geothermal Congress
- Year
- 1995
- Session
- SECTION 5 - Drilling and Completion Technology
- Language
- English
- Paper number
- 2-Arisi
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Abstract
An innovative system for temperature and pressure measurements in geothermal wells is described. It was developed by ENEL and CISE with the aim to operate contemporary and real-time well logging. The system, named HELIUM 48 (Hostile Environment Light Instrumentation for Underground Measurements), can also be used inside of the drilling rods. It is based on a suitable "HostEn" (Hostile Environment) seven conductors cable in order to fulfil the following operating conditions: maximum depth: 4000 m maximum pressure: 50 maximum temperature: 400 No dewar nor other thermal shiels are employed for the probe; so it hasn't any time limit for its in-well work. The technical features of the main components of this high performant and system are described and the operation results are reported.
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