Location of the Romanian geothermal
reservoirs
Exploration for geothermal resources
began in Romania in the early 1960’s, arising from
a hydrocarbon search program which as an unexpected
benefit also identified eight promising geothermal
areas. Within these areas, over 200 wells, drilled
to depths between 800-3500 m, show the presence
of low- enthalpy geothermal resources (40-120°C).
Completion and experimental exploitation of over
100 wells during the past 25 years has enabled evaluation
of the exploitable heat available from these geothermal
resources..
Proven geothermal reserves in Romania
are currently about 200,000 TJ for 20 years. The
principal Romanian geothermal resources are found
in porous and permeable sandstones and siltstones
(for example, in the Western Plain and the Olt Valley),
or in fractured carbonate formations (Oradea, Bors,
North Bucharest). The total thermal capacity of
the existing wells is about 480 MWt (for a reference
temperature of 25°C).
Of this total, only 152 MWt are currently used,
from 96 wells (of which 35 wells are used for balneology
and bathing) that are producing hot water in the
temperature range of 45-115°C.
For 1999, the annual energy utilisation from these
wells was about 2,900 TJ, with a capacity factor
of 0.6. More than 80% of the wells are artesian
producers, 18 wells require anti-scaling chemical
treatment, and six are reinjection wells. The main
direct uses of the geothermal energy are: space
and district heating -- 37%; bathing -- 30%; greenhouse
heating -- 23%; industrial process heat -- 7%; fish
farming and animal husbandry -- 2%.
http://www.geothermie.de/egec_geothernet/menu/frameset.htm
>> Romania Update Report for 1995-1999
