Update on Composite Geochemical Conceptual Model for the Bešeòová Elevation Geothermal Structure, Liptov Basin, Northern Slovakia

Abstract

Whether in phase of initial exploration and prospection, drilling, or monitoring on production response, geochemistry and geothermometry gained high reputation in a past worldwide. Amongst basic description and classification of thermal waters, temperature estimation and analysis of technical properties, both methods are frequently applied in conceptual model construction, here presented in conditions of the Bešeňová elevation geothermal structure, northern Slovakia, being recognized as open hydrogeological system of stratified reservoirs in the production part. Paper manifests essential facial analysis and maturity models correlated with mixing and boiling inspection designed plots (chloride – boron, chloride – sodium, chloride – total carbonate) and geothermometers. In conclusions, the Bešeňová elevation appears a complex system of polystageous mixing within infiltration, accumulation and discharge zone, however, with no evidence on boiling. Amongst description of basic reservoir processes, a minor discharge zone in the Sliače area is identified, well conform to a model derived by reservoir base overheating analysis. Immaturity resultant to albite-muscovite-adularia system instability turns Na/K geothermometry inadequate, whilst chalcedony, Mg-corrected Na-K-Ca and K/Mg geothermometry gains the most precise results in temperature estimation. Type curve analysis and mismatch in MCG and TSI geothermometry appears another hint on separate minor convection cells evolution in deep reservoir.