TY  - JOUR
A1  - Schütz, Felina
A1  - Winterleitner, Gerd
A1  - Huenges, Ernst
T1  - Geothermal exploration in a sedimentary basin
BT  - new continuous temperature data and physical rock properties from northern Oman
JF  - Geothermal Energy
N2  - 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.
KW  - Continuous temperature logging
KW  - Physical rock properties
KW  - Sedimentary basin
KW  - Geothermal applications in Oman
Y1  - 2018
U6  - https://doi.org/10.1186/s40517-018-0091-6
SN  - 2195-9706
VL  - 6
IS  - 1
PB  - Springer
CY  - London
ER  - 
TY  - JOUR
A1  - Scheck-Wenderoth, Magdalena
A1  - Cacace, Mauro
A1  - Maystrenko, Yuriy Petrovich
A1  - Cherubini, Yvonne
A1  - Noack, Vera
A1  - Kaiser, Bjoern Onno
A1  - Sippel, Judith
A1  - Bjoern, Lewerenz
T1  - Models of heat transport in the Central European Basin System: Effective mechanisms at different scales
JF  - Marine and petroleum geology
N2  - 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.
KW  - 3D thermal model
KW  - Geothermal field
KW  - Sedimentary basin
KW  - Heat transport by conduction
KW  - Advection and convection
KW  - Central European Basin System
Y1  - 2014
U6  - https://doi.org/10.1016/j.marpetgeo.2014.03.009
SN  - 0264-8172
SN  - 1873-4073
VL  - 55
SP  - 315
EP  - 331
PB  - Elsevier
CY  - Oxford
ER  -