Methods for regional assessment of geothermal resources

Muffler, L. J. Patrick; Cataldi, R.

doi:10.2172/6496850

Cited by 44 publications

(63 citation statements)

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“…Supplementary Materials: The following are available online at http://www.mdpi.com/1996-1073/11/6/1591/ s1, Table S1: Initial conditions and parameters for TOUGH2 simulation, Table S2: Geothermal energy calculation (Balke, 1977, Muffler andCataldi, 1978), Table S3: Parameters for the standard vertical BHE, Table S4: Bedrock geothermal potential calculation (Balke, 1977, Muffler andCataldi, 1978).…”

Section: Discussionmentioning

confidence: 99%

“…The geothermal potential of the aquifers of the Pisa plain subsoil can then be estimated using the volumetric method equation [23,24]…”

Section: Evaluation Of the Geothermal Potential For Open-loop Ghp Sysmentioning

confidence: 99%

“…The evaluation of this type of geothermal resource, deeper and hotter than those described above, was performed using the volumetric method [23,24] and the reconstructed bedrock unit. For economic reasons (well drilling cost), the calculation was limited to the area where carbonate formations hosting thermal waters are relatively shallow (<600 m, structural high of the bedrock.…”

Section: Evaluation Of the Geothermal Potential For The Bedrockmentioning

confidence: 99%

“…It allows execution of map algebra expressions involving two or more rasters, resulting in a new raster. In this study, starting from the top surface of the lithological units (input raster) and using the "volumetric method equation" [23,24], the volumes of the lithological units were determined. The outputs allow easy estimation and mapping of geothermal potential and other useful geothermal parameters, including temperatures and aquifer volumes.…”

Section: Introductionmentioning

confidence: 99%

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The Integration of 3D Modeling and Simulation to Determine the Energy Potential of Low-Temperature Geothermal Systems in the Pisa (Italy) Sedimentary Plain

et al. 2018

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Shallow, low-temperature geothermal resources can significantly reduce the environmental impact of heating and cooling. Based on a replicable standard workflow for three-dimensional (3D) geothermal modeling, an approach to the assessment of geothermal energy potential is proposed and applied to the young sedimentary basin of Pisa (north Tuscany, Italy), starting from the development of a geothermal geodatabase, with collated geological, stratigraphic, hydrogeological, geophysical and thermal data. The contents of the spatial database are integrated and processed using software for geological and geothermal modeling. The models are calibrated using borehole data. Model outputs are visualized as three-dimensional reconstructions of the subsoil units, their volumes and depths, the hydrogeological framework, and the distribution of subsoil temperatures and geothermal properties. The resulting deep knowledge of subsoil geology would facilitate the deployment of geothermal heat pump technology, site selection for well doublets (for open-loop systems), or vertical heat exchangers (for closed-loop systems). The reconstructed geological-hydrogeological models and the geothermal numerical simulations performed help to define the limits of sustainable utilization of an area's geothermal potential.

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Section: Discussionmentioning

confidence: 99%

“…The geothermal potential of the aquifers of the Pisa plain subsoil can then be estimated using the volumetric method equation [23,24]…”

Section: Evaluation Of the Geothermal Potential For Open-loop Ghp Sysmentioning

confidence: 99%

Section: Evaluation Of the Geothermal Potential For The Bedrockmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Integration of 3D Modeling and Simulation to Determine the Energy Potential of Low-Temperature Geothermal Systems in the Pisa (Italy) Sedimentary Plain

et al. 2018

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“…According to Muffler and Cataldi (1978), the accessible resource base corresponds to all of the thermal energy stored between the Earth's surface and a specified depth in the crust, beneath a specified area and measured from local mean annual temperature. The accessible resource base includes the useful accessible resource, which could be considered as resource, constituted by the part that could be extracted economically and legally at some specified time in the future (less than a hundred years).…”

Section: Classification Definition and Uses Of Geothermal Resourcesmentioning

confidence: 99%

Methods and tools to evaluate the availability of renewable energy sources

Angelis-Dimakis

Biberacher

Bravo

et al. 2011

Renewable and Sustainable Energy Reviews

349

132

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The recent statements of both the European Union and the US Presidency pushed in the direction of using renewable forms of energy, in order to act against climate changes induced by the growing concentration of carbon dioxide in the atmosphere. In this paper, a survey regarding methods and tools presently available to determine potential and exploitable energy in the most important renewable sectors (i.e., solar, wind, wave, biomass and geothermal energy) is presented. Moreover, challenges for each renewable resource are highlighted as well as the available tools that can help in evaluating the use of a mix of different sources.

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Reconstruction of rocks petrophysical properties as input data for reservoir modeling

Cantucci

Montegrossi

Lucci

et al. 2016

Geochem Geophys Geosyst

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The worldwide increasing energy demand triggered studies focused on defining the underground energy potential even in areas previously discharged or neglected. Nowadays, geological gas storage (CO2 and/or CH4) and geothermal energy are considered strategic for low‐carbon energy development. A widespread and safe application of these technologies needs an accurate characterization of the underground, in terms of geology, hydrogeology, geochemistry, and geomechanics. However, during prefeasibility study‐stage, the limited number of available direct measurements of reservoirs, and the high costs of reopening closed deep wells must be taken into account. The aim of this work is to overcome these limits, proposing a new methodology to reconstruct vertical profiles, from surface to reservoir base, of: (i) thermal capacity, (ii) thermal conductivity, (iii) porosity, and (iv) permeability, through integration of well‐log information, petrographic observations on inland outcropping samples, and flow and heat transport modeling. As case study to test our procedure we selected a deep structure, located in the medium Tyrrhenian Sea (Italy). Obtained results are consistent with measured data, confirming the validity of the proposed model. Notwithstanding intrinsic limitations due to manual calibration of the model with measured data, this methodology represents an useful tool for reservoir and geochemical modelers that need to define petrophysical input data for underground modeling before the well reopening.

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Methods for regional assessment of geothermal resources

Cited by 44 publications

References 0 publications

The Integration of 3D Modeling and Simulation to Determine the Energy Potential of Low-Temperature Geothermal Systems in the Pisa (Italy) Sedimentary Plain

The Integration of 3D Modeling and Simulation to Determine the Energy Potential of Low-Temperature Geothermal Systems in the Pisa (Italy) Sedimentary Plain

Methods and tools to evaluate the availability of renewable energy sources

Reconstruction of rocks petrophysical properties as input data for reservoir modeling

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