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GEOTHERMAL DRILLING ACTIVITY IN THE AKROPOTAMOS AREA (MACEDONIA, NORTHERN GREECE)

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N. Kolios, A. Arvanitis, G. Karydakis, S. Koutsinos
N. Kolios, A. Arvanitis, G. Karydakis, S. Koutsinos

Abstract


The Akropotamos area constitutes a new geothermal field located in the eastern coastal zone of the Strymonikos Gulf in Macedonia (Northern Greece). After a detailed and systematic reconnaissance study including water temperature measurements at the heads of the existing irrigation and water supply wells, 6 new geothermal wells were constructed. This geothermal drilling program was performed by the Institute of Geology and Mineral Exploration during October 2003 - February 2006. Temperature and fluid conductivity logs were carried out into these boreholes during their drilling and after their completion. Well AKR-1 has a depth of 275 m and produces thermal waters at a temperature of 83o C with artesian flow rate 150 m3 /h and large amounts of dissolved CO2. Well AKR- 2 of 410 m yields 25 m3 /h of waters at 46o C. Well AKR-3 was drilled down to 515 m and the temperature of 88.9o C was measured at 498 m. This well yields about 200 m3 /h CO2-rich geothermal fluids at a temperature of 90o C with artesian flow. Next to this borehole, well AKR-4 was drilled at 180 m penetrating a shallow aquifer with waters reaching 49.7o C. During pumping test with constant flow rate, this well yielded 40 m3 /h water of 48o C. Well AKR-5, 422 deep, was drilled in the western part of the study area close to the Strymon river’s mouth. The temperature of 27.8o C was recorded at 280 m into this borehole. The last well AKR-6 was drilled down to 545 m in the eastern part of the field. The temperature of 38o C was recorded at depth of 503 m. Pumping tests were performed in wells AKR-2 and AKR-4. This geothermal drilling project has resulted in the official characterization of the Akropotamos - Kavala area as a “proven low enthalpy geothermal field”.

Keywords


Akropotamos; Macedonia; geothermal field; geothermal wells; Strymonikos Gulf; Kavala; CO2;

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References


Eleftheriadis, G., Frank, W. and Petrakakis, K., 2001. 40Ar/39Ar Dating and Cooling History of the Pangeon

Granitoids, Rhodope Massif (Eastern Macedonia, Greece). Bull. Geol. Soc. Greece XXXIV/3,

Proceedings of the 9th International Congress, Athens, 911-916.

Institute of Geology and Mineral Exploration (I.G.M.E.), 1983. Geological map of Greece, scale

:500000. Athens.

Institute of Geology and Mineral Exploration (I.G.M.E.), 1989. Seismotectonic map of Greece with seismological

data, scale 1:500000. Athens.

Mountrakis, D.M. and Tranos, M.D., 2004. The Kavala-Xanthi-Komotini fault (KXKF): a complicated

active fault zone in Eastern Macedonia - Thrace (Northern Greece). Proceedings, 5th International

Symposium on Eastern Mediterranean Geology, Thessaloniki, Greece, 14-20 April 2004, Ref: S1-19.

Noussinanos, Th., 1991. Classification of Hydrocarbon basins of NE Greece. Mineral Wealth, 73, 33-56.

Syrides, G., 2000. Neogene marine cycles in Strymon basin, Macedonia, Greece. Geological Society of

Greece, Special Publications, Proceedings, International Interim Colloquim RCMNS, Patras, Greece,

May 1988, 217-225.

Gavrielides, G., 1990. Study of the subsurface aquifer conditions of the Eleftheres curative springs. Proceedings

of the 2nd Congress on the thermal mineral waters (Thessaloniki, Greece, 1988), Hellenic

Association of Municipalities and Communities of Curative Springs and Spas, Thessaloniki, 155-166.

Lalechos, N., 1986. Correlations and Observations in Molassic Sediments in Onshore and Offshore Areas

of Northern Greece. Mineral Wealth, 42, 7-34.

P.P.C. (Public Petroleum Corporation), 1988. Evaluation of deep oil boreholes. Athens, pp. 0-53.

P.P.C (Public Power Corporation / Geothermal Department) and E.N.E.L.(Ente Nazionale per l’ Energia

Elettrica), 1979. Geothermal reconnaissance study of Macedonia and Chalcidice, General Report,

GR/R-4.

Pollak, W.H., 1979. Structural and lithological development of the Prinos - Kavala basin, Sea of Thrace,

Greece. Annales Géologique des Pays Helléniques, Tome bors serie, 2, 1003-1011.


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