Research partners: University of Applied Sciences and Arts Western Switzerland (HES-SO)
The goal is to develop a new generation of borehole sensors suitable for operation under high temperatures and pressures, to measure properties which might include local physical and chemical properties, conditions of the well (casing integrity, corrosion, altitude), parameters to monitor induced seismicity, dynamic changes in rock conditions related to energy harvesting process operation, safety systems. Operating electronic circuits at very high temperatures is a challenge. We shall develop a two-step approach, where available active circuits for operation up to 200°C are placed in an intermediate cabinet at 2-3km depth, and a passive front-end capable of operating over a distance of up to 2km is designed for specific measurement systems. Activities will include the definition of measurement tasks, specifications, concepts, materials, devices and systems, casing and packaging; the evaluation of technologies and materials; technological infrastructure for the fabrication of harsh environment sensors; demonstrated sensor concepts and packaging in lab and first field trials.