LIBS analysis is efficient in the classification of mineral grains and prospecting Be Li granitoid rocks.

This study explores a novel strategy to repurpose depleted clastic sediment hydrocarbon reservoirs in Hungary as High-Temperature Aquifer Thermal Energy Storage (HT-ATES) systems, incorporating machine learning enhance system optimization. Hungary's extensive inventory of fields, predominantly featuring formations, presents significant potential for geothermal energy storage applications. Initially, detailed reservoir models were constructed by analyzing existing well logs and core data....

Red mud is a by-product of alumina production containing lanthanides. Growth green microalgae on red and the intracellular accumulation lanthanides was tested. The best growing species Desmodesmus quadricauda (2.71 cell number doublings/day), which accumulated to highest level (27.3 mg/kg/day), if compared with Chlamydomonas reinhardtii Parachlorellakessleri (2.50, 2.37 doublings 24.5, 12.5 mg/kg per day, respectively). With increasing concentrations mud, growth rate decreased (2.71, 2.62,...

The study aimed to find the origin of high lithium content groundwater in southeast Hungary. To be concerned with assessing economic potential these waters, it is necessary investigate lithium-releasing geochemical processes. For this purpose, granite and pegmatite samples were analysed for alteration from various Battonya Complex locations. key processes are chloritisation biotite sericitisation feldspar, which hypothesised mobilise Li minerals into geothermal waters. Whole-rock analyses...

Abstract Fracture identification and evaluation requires data from various resources, such as image logs, core samples, seismic data, conventional well logs for a meaningful interpretation. However, several wells have some missing data; instance, expensive cost run concern occasionally unsuccessful retrieving process. Thus, majority of the current research is focused on predicting fracture based log data. Interpreting fractures information very important especially to develop reservoir model...

Abstract Previously drilled boreholes of a host rock for potential nuclear waste repository in Hungary revealed highly fractured claystone body. A crucial step characterizing the hydrodynamic behavior such reservoir is fracture identification and accurate calculation density. Although acoustic borehole televiewers provide reliable base determining density, older usually lack data. However, conventional geophysical measurements are often accessible cases. The aim this study was to identify...

Reservoir rocks at Gomba oilfield, located in the Hungarian Paleogene Basin, include fractured and karstified Triassic carbonates with significant fluid storage potential. However little information is available about fracture network these which has led to production problems Gomba. The purpose of this study investigate relationship between spatial distribution high porosity zones microfracture system. For evaluation, individual fractures were studied used a discrete (DFN) modelling...

Fracture network modelling and a hydrological evaluation were performed in well more than 900 m deep that penetrated the Boda Claystone Formation, potential host rock for high-level nuclear waste disposal facilities Hungary. The fracture geometry was generated with discrete algorithm, which permeability porosity of system can be calculated if aperture fractures is known. estimated via an calibration based on comparison measured modelled values. Flow zone indices numerous sections along well,...

This study introduces a robust methodology utilizing Multi-Criteria Decision Analysis (MCDA) combined with the Analytic Hierarchy Process (AHP) to repurpose abandoned hydrocarbon fields for energy storage, supporting transition renewable sources. We use geostatistical approach integrated Python scripting analyze reservoir parameters—including porosity, permeability, thickness, lithology, temperature, heat capacity, and thermal conductivity—from decommissioned field in Southeast Hungary. Our...

The basement of the Pannonian Basin is composed metamorphic rock complexes that serve as either a pathway for fluid migration or hydrocarbon storage in fractured body.Mezősas field located northern part Békés Basin, deepest sub-basin Basin.There are three major units exist area.An orthogneiss-dominated realm occurs at lowermost basement, sillimanite biotite gneiss middle part, and amphibolite top basement.Lithology identification interpretation rocks from well logs difficult especially when...

Fractured fluid reservoirs are of key importance for recovering water and hydrocarbon supplies geothermal energy, or in predicting the subsurface flow pollutants. There several fractured metamorphic-basement HC Pannonian Basin; one largest among them is Szeghalom Dome SE Hungary. Previous production inclusion data infer that this case unconnected regimes must coexist basement, making modeling fracture network essential. Because representative volume a rock mass usually too large to measure...

The basement of the Pannonian Basin contains several fractured metamorphic hydrocarbon reservoirs that typically form structural highs between Neogene sedimentary sub-basins.One largest reservoirs, Szeghalom Dome, is located on northern margin Békés and mainly composed Variscan gneisses amphibolites with different evolutions.These petrologically incompatible blocks were juxtaposed by post-metamorphic tectonic activity was accompanied formation brittle fault zones higher...

Detailed mineralogical and geochemical study of red mud samples from Hungary suggests geological processes that determine the spatial distribution certain elements inside pitfalls. The major are following: (1) Heavy mineral grains (anatase, rutile, titanomagnetite, etc.) tend to subside due gravitational differentiation at present accumulate in deepest horizons (2) Kaolinite reacts cancrinite under hyperalkaline conditions. (3) Due diagenetic processes, goethite-cancrinite aggregates form...