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A platform for research: civil engineering, architecture and urbanism
Video Inspection Probe for deep Geothermal Boreholes - GeoKam
At the Karlsruhe Institute of Technology a camera inspection system for geothermal boreholes is being developed. The aim is to transmit live pictures from a 5 km deep borehole via wire-line to the surface. At this depth, temperatures of up to 200 °C and pressures up to 60 MPa are expected, so that the mechanics and the electronics face severe load conditions. In addition, the corrosive thermal water, possible shocks in operation, the friction between the borehole probe and the borehole wall and sometimes poor visibility have to be taken into account. Since February 2013 investigations for the GeoKam project have been carried out in the area of the mechanical components and first solutions could be developed. The work can be divided into two areas: (1) the housing, which is exposed to the pressure, temperature, the corrosive thermal water and friction and (2) the core, which is protected by the housing and only exposed to high temperatures and shock. Solutions for materials and jointing techniques, PCM-Cooling of the electronics as well as transparent insulation are actual development issues. Since the beginning of the investigations some solutions for the problems mentioned above have already been developed and some prototypes for first attempts will be manufactured in 2014.
Video Inspection Probe for deep Geothermal Boreholes - GeoKam
At the Karlsruhe Institute of Technology a camera inspection system for geothermal boreholes is being developed. The aim is to transmit live pictures from a 5 km deep borehole via wire-line to the surface. At this depth, temperatures of up to 200 °C and pressures up to 60 MPa are expected, so that the mechanics and the electronics face severe load conditions. In addition, the corrosive thermal water, possible shocks in operation, the friction between the borehole probe and the borehole wall and sometimes poor visibility have to be taken into account. Since February 2013 investigations for the GeoKam project have been carried out in the area of the mechanical components and first solutions could be developed. The work can be divided into two areas: (1) the housing, which is exposed to the pressure, temperature, the corrosive thermal water and friction and (2) the core, which is protected by the housing and only exposed to high temperatures and shock. Solutions for materials and jointing techniques, PCM-Cooling of the electronics as well as transparent insulation are actual development issues. Since the beginning of the investigations some solutions for the problems mentioned above have already been developed and some prototypes for first attempts will be manufactured in 2014.
Video Inspection Probe for deep Geothermal Boreholes - GeoKam
Spatafora, Luigi (author) / Dahm, Ralf (author) / Heuser, Peter (author) / Holbein, Benedict (author) / Isele, Jörg (author) / Basuki, Widodo Widjaja (author)
Workshop on Geothermal Reservoir Engineering, 39 ; 1307-1316
2014
10 Seiten, Bilder, Tabellen, Quellen
Conference paper
English
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