@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{SchuetzWinterleitnerHuenges2018, author = {Sch{\"u}tz, Felina and Winterleitner, Gerd and Huenges, Ernst}, title = {Geothermal exploration in a sedimentary basin}, series = {Geothermal Energy}, volume = {6}, journal = {Geothermal Energy}, number = {1}, publisher = {Springer}, address = {London}, issn = {2195-9706}, doi = {10.1186/s40517-018-0091-6}, pages = {23}, year = {2018}, abstract = {The lateral and vertical temperature distribution in Oman is so far only poorly understood, particularly in the area between Muscat and the Batinah coast, which is the area of this study and which is composed of Cenozoic sediments developed as part of a foreland basin of the Makran Thrust Zone. Temperature logs (T-logs) were run and physical rock properties of the sediments were analyzed to understand the temperature distribution, thermal and hydraulic properties, and heat-transport processes within the sedimentary cover of northern Oman. An advective component is evident in the otherwise conduction-dominated geothermal play system, and is caused by both topography and density driven flow. Calculated temperature gradients (T-gradients) in two wells that represent conductive conditions are 18.7 and 19.5 °C km-1, corresponding to about 70-90 °C at 2000-3000 m depth. This indicates a geothermal potential that can be used for energy intensive applications like cooling or water desalinization. Sedimentation in the foreland basin was initiated after the obduction of the Semail Ophiolite in the late Campanian, and reflects the complex history of alternating periods of transgressive and regressive sequences with erosion of the Oman Mountains. Thermal and hydraulic parameters were analyzed of the basin's heterogeneous clastic and carbonate sedimentary sequence. Surface heat-flow values of 46.4 and 47.9 mW m-2 were calculated from the T-logs and calculated thermal conductivity values in two wells. The results of this study serve as a starting point for assessing different geothermal applications that may be suitable for northern Oman.}, language = {en} }