@article{ScheckWenderothCacaceMaystrenkoetal.2014,
  author    = {Scheck-Wenderoth, Magdalena and Cacace, Mauro and Maystrenko, Yuriy Petrovich and Cherubini, Yvonne and Noack, Vera and Kaiser, Bjoern Onno and Sippel, Judith and Bjoern, Lewerenz},
  title     = {Models of heat transport in the Central European Basin System: Effective mechanisms at different scales},
  series = {Marine and petroleum geology},
  volume    = {55},
  journal   = {Marine and petroleum geology},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0264-8172},
  doi       = {10.1016/j.marpetgeo.2014.03.009},
  pages     = {315 -- 331},
  year      = {2014},
  abstract  = {Understanding heat transport in sedimentary basins requires an assessment of the regional 3D heat distribution and of the main physical mechanisms responsible for the transport of heat. We review results from different 3D numerical simulations of heat transport based on 3D basin models of the Central European Basin System (CEBS). Therefore we compare differently detailed 3D structural models of the area, previously published individually, to assess the influence of (1) different configurations of the deeper lithosphere, (2) the mechanism of heat transport considered and (3) large faults dissecting the sedimentary succession on the resulting thermal field and groundwater flow. Based on this comparison we propose a modelling strategy linking the regional and lithosphere-scale to the sub-basin and basin-fill scale and appropriately considering the effective heat transport processes. We find that conduction as the dominant mechanism of heat transport in sedimentary basins is controlled by the distribution of thermal conductivities, compositional and thickness variations of both the conductive and radiogenic crystalline crust as well as the insulating sediments and by variations in the depth to the thermal lithosphere-asthenosphere boundary. Variations of these factors cause thermal anomalies of specific wavelength and must be accounted for in regional thermal studies. In addition advective heat transport also exerts control on the thermal field on the regional scale. In contrast, convective heat transport and heat transport along faults is only locally important and needs to be considered for exploration on the reservoir scale. The general applicability of the proposed workflow makes it of interest for a broad range of application in geosciences including oil and gas exploration, geothermal utilization or carbon capture and sequestration issues. (C) 2014 Elsevier Ltd. All rights reserved.},
  language  = {en}
}
@article{CherubiniCacaceBloecheretal.2013,
  author    = {Cherubini, Yvonne and Cacace, Mauro and Bl{\"o}cher, Guido and Scheck-Wenderoth, Magdalena},
  title     = {Impact of single inclined faults on the fluid flow and heat transport - results from 3-D finite element simulations},
  series = {Environmental earth sciences},
  volume    = {70},
  journal   = {Environmental earth sciences},
  number    = {8},
  publisher = {Springer},
  address   = {New York},
  issn      = {1866-6280},
  doi       = {10.1007/s12665-012-2212-z},
  pages     = {3603 -- 3618},
  year      = {2013},
  abstract  = {The impact of inclined faults on the hydrothermal field is assessed by adding simplified structural settings to synthetic models. This study is innovative in carrying out numerical simulations because it integrates the real 3-D nature of flow influenced by a fault in a porous medium, thereby providing a useful tool for complex geothermal modelling. The 3-D simulations for the coupled fluid flow and heat transport processes are based on the finite element method. In the model, one geological layer is dissected by a dipping fault. Sensitivity analyses are conducted to quantify the effects of the fault's transmissivity on the fluid flow and thermal field. Different fault models are compared with a model where no fault is present to evaluate the effect of varying fault transmissivity. The results show that faults have a significant impact on the hydrothermal field. Varying either the fault zone width or the fault permeability will result in relevant differences in the pressure, velocity and temperature field. A linear relationship between fault zone width and fluid velocity is found, indicating that velocities increase with decreasing widths. The faults act as preferential pathways for advective heat transport in case of highly transmissive faults, whereas almost no fluid may be transported through poorly transmissive faults.},
  language  = {en}
}
@article{CherubiniCacaceScheckWenderothetal.2013,
  author    = {Cherubini, Yvonne and Cacace, Mauro and Scheck-Wenderoth, Magdalena and Moeck, Inga and Lewerenz, Bj{\"o}rn},
  title     = {Controls on the deep thermal field - implications from 3-D numerical simulations for the geothermal research site Groß Sch{\"o}nebeck},
  series = {Environmental earth sciences},
  volume    = {70},
  journal   = {Environmental earth sciences},
  number    = {8},
  publisher = {Springer},
  address   = {New York},
  issn      = {1866-6280},
  doi       = {10.1007/s12665-013-2519-4},
  pages     = {3619 -- 3642},
  year      = {2013},
  abstract  = {The deep thermal field in sedimentary basins can be affected by convection, conduction or both resulting from the structural inventory, physical properties of geological layers and physical processes taking place therein. For geothermal energy extraction, the controlling factors of the deep thermal field need to be understood to delineate favorable drill sites and exploitation compartments. We use geologically based 3-D finite element simulations to figure out the geologic controls on the thermal field of the geothermal research site Gro Schonebeck located in the E part of the North German Basin. Its target reservoir consists of Permian Rotliegend clastics that compose the lower part of a succession of Late Carboniferous to Cenozoic sediments, subdivided into several aquifers and aquicludes. The sedimentary succession includes a layer of mobilized Upper Permian Zechstein salt which plays a special role for the thermal field due to its high thermal conductivity. Furthermore, the salt is impermeable and due to its rheology decouples the fault systems in the suprasalt units from subsalt layers. Conductive and coupled fluid and heat transport simulations are carried out to assess the relative impact of different heat transfer mechanisms on the temperature distribution. The measured temperatures in 7 wells are used for model validation and show a better fit with models considering fluid and heat transport than with a purely conductive model. Our results suggest that advective and convective heat transport are important heat transfer processes in the suprasalt sediments. In contrast, thermal conduction mainly controls the subsalt layers. With a third simulation, we investigate the influence of a major permeable and of three impermeable faults dissecting the subsalt target reservoir and compare the results to the coupled model where no faults are integrated. The permeable fault may have a local, strong impact on the thermal, pressure and velocity fields whereas the impermeable faults only cause deviations of the pressure field.},
  language  = {en}
}