GEOTHERMAL RESERVOIRS IN DENMARK.
The possibilities of low enthalphy energy sources in Denmark have been investigated. Particular emphasis has been placed on the reservoir characteristics with the intention, if possible, to produce synthetic reservoir assessments. The investigations of the reservoirs have included the establishment of sedimentary environment, degree and type of diagenesis, temperature mapping, factors controlling brine salinity, the decrease of porosity with increased depth of burial, and the relationships between porosity and permeability. Very simplified, the porosity of the reservoirs decrease from 30-40 % at 500 m depth to 5-15 % at about 3500 m depth. The significant decrease in permeability with increased depth is noted. Temperatures increase from about 55-75 degrees C at 2000 m to 75-105 degrees C at 3000 m depth. Temperatures of 100-150 degrees C are reached in the central part of the sedimentary basins.
Bibliographic Reference: EUR 9052 EN (1983) MF, 13 P., BFR 120, EUROFFICE, LUXEMBOURG POB 1003
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Record Number: 1989122024700 / Last updated on: 1987-01-01
Available languages: en