Integrated seismic and magnetotelluric exploration of the Skierniewice, Poland, geothermal test site

Bujakowski, W.; Barbacki, Antoni; Czerwińska, B; Pająk, Leszek; Pussak, Marcin; Stefaniuk, M.; Trześniowski, Zygmunt

doi:10.1016/j.geothermics.2010.01.003

Cited by 23 publications

(8 citation statements)

References 6 publications

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“…Geophysical surveys in sedimentary rock complexes in Poland have also been undertaken for geothermal studies by the Mineral and Energy Economy Research Institute of the Polish Academy of Sciences [24,25].…”

Section: Introductionmentioning

confidence: 99%

Modelling geothermal and operating parameters of EGS installations in the lower triassic sedimentary formations of the central Poland area

et al. 2015

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a b s t r a c tThe article presents the results of modelling geothermal conditions in the Lower Triassic sedimentary formations of the Polish Lowland area (central Poland) and an electricity production model for a prospective EGS (Enhanced Geothermal System) installation situated in that area. On the basis of comprehensive analyses, this area has been selected as optimal for EGS plants operating in sedimentary complexes in the Polish Lowland. Numerical modelling was conducted using TOUGH2 code and served to evaluate the energy performance of the prospective EGS plant operating in the area. Modelling results indicate that the energy performance of the EGS plant is strongly dependent on the volume and permeability of the artificially fractured zone and its net power is dependent on the power consumed by the circulating pumps that stimulate the flow. For the top layer of the Buntsandstein formation at a depth of ca. 5500 m and temperature of ca. 170 C, the modelled net power of an EGS plant operating in the area ranged from 2 to 3 MW for a circulation of 200 m 3 /h, and at 100 m 3 /h it ranged from 1.3 to 1.6 MW depending on the permeability and volume of the fractured zone used for the circulation in question.

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Section: Introductionmentioning

confidence: 99%

Modelling geothermal and operating parameters of EGS installations in the lower triassic sedimentary formations of the central Poland area

et al. 2015

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“…Electromagnetic methods are preferable to detect these zones, because they are highly sensitive to map these structures. Zones of maximum geoelectric "anisotropy" probably represent areas with strong fracturing or/and porosity containing hot mineral waters [1].…”

Section: Detection Of Fault Zones With Electric and Electromagnetic Mmentioning

confidence: 99%

Deep Geothermal Energy for Lower Saxony (North Germany) – Combined Investigations of Geothermal Reservoir Characteristics

2014

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For the economic success of a geothermal project the hydraulic properties and temperature of the geothermal reservoir are crucial. New methodologies in seismics, geoelectrics and reservoir geology are tested within the frame of the collaborative research programme "Geothermal Energy and High-Performance Drilling" (gebo). Within nine geoscientific projects, tools were developed that help in the evaluation and interpretation of acquired data. Special emphasis is placed on the investigation of rock properties, on the development of early reservoir assessment even during drilling, and on the interaction between the drilling devices and the reservoir formation. The propagation of fractures and the transport of fluid and heat within the regional stress field are investigated using different approaches (field studies, seismic monitoring, multi-parameter modelling). Geologic structural models have been created for simulation of the local stress field and hydromechanical processes. Furthermore, a comprehensive dataset of hydrogeochemical environments was collected allowing characterisation and hydrogeochemical modelling of the reservoir.

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“…Of course, Poland is not on a tectonic plate boundary, and only the central part of Poland has conditions for the production of electricity. These geothermal resources can be classifi ed as intermediate resources [2,4].…”

Section: Introductionmentioning

confidence: 99%

Assessment of possibilities of electricity production in flash geothermal system in Poland

Barbacki

Pająk

2017

geom

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Abstract:An analytical method is described that expresses the specifi c power of a fl ash geothermal power plant with fl ash temperature regarded as a variable. The analysis was carried out for a condensation temperature for fl uid exiting a theoretical turbine and for a given geothermal reservoir temperature. The method is a linear approximation of the established method for optimizing separator pressure. This linear approximation makes it possible to obtain an analytical expression for the optimum fl ash temperature (fi xing the separation pressure) at which the maximal specifi c power is obtained. A discussion arose in Poland during extensive research related to the application of binary systems, HDR (Hot Dry Rock), and EGS (Enhanced Geothermal System) technologies for the production of electricity. This concerned the hypothetical possibility of using geothermal fl ash systems for this purpose. Therefore, the above procedure was applied to Polish geothermal conditions to assess the theoretical possibilities of operating such systems at the reservoir temperatures anticipated in Poland. In the lower Triassic formations in central Poland, there are geothermal resources with temperatures hovering above 130°C. However, low net power values were estimated following the application of the procedure; when combined with the large investment costs involved (the high-temperature resources lie at a depth more than 4000 m), this is not condusive for the effi cient application of such systems. On the other hand, the possible application of binary systems to electricity production in that area is realistic and justifi ed.

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Integrated seismic and magnetotelluric exploration of the Skierniewice, Poland, geothermal test site

Cited by 23 publications

References 6 publications

Modelling geothermal and operating parameters of EGS installations in the lower triassic sedimentary formations of the central Poland area

Modelling geothermal and operating parameters of EGS installations in the lower triassic sedimentary formations of the central Poland area

Deep Geothermal Energy for Lower Saxony (North Germany) – Combined Investigations of Geothermal Reservoir Characteristics

Assessment of possibilities of electricity production in flash geothermal system in Poland

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