3D-Modellierung einer Störungszone in geothermisch relevantem Gebiet anhand von 3D-Seismik unter Berücksichtigung geothermischer Nutzungsaspekte
Abstract: This study is part of the project "The role of deep rooting fault zones for geothermal energy utilization" and focused on modelling of deep rooting faults by means of 3D seismic. Fault models from this study have been compared with generalised fault lineaments adopted from the project "Geothermal Atlas" in order to investigate the accuracy of the map. Moreover information about dip and direction of faults, their connectivity and depth was obtained. By means of several criteria, like the availability of 3D seismic, well data containing check shots and general information about the geological setting, a suitable area for modelling was selected. The operations were performed by the GOCAD/SKUA ® software and resulted in the creation of five horizons from the Upper Permian up to the Upper Cretaceous. On the basis of inhomogeneities and displacement unconformities a large number of discontinuities could be identified and modelled either as major or as minor faults. The studied area is crossed by a graben in WNW-ESE direction, which is well represented by generalised faults of the Goldenstedt-Blenhorst and the Rheder Moor-Oythe lineaments. In addition by the use of 3D seismic it could be demonstrated how far existing models matched the results in this study respectively in which areas the former model has to be modified or supplemented.
Keywords: 3D MODELLING; 3D SEISMIC; 3D-MODELLIERUNG; 3D-SEISMIK; DEEP-SEATED FAULT ZONES; INVERSION; LOWER SAXONY BASIN; NIEDERSÄCHSISCHES BECKEN; NORDDEUTSCHES BECKEN; NORTH GERMAN BASIN; TIEFREICHENDE STÖRUNGSZONEN
Document Type: Research Article
Publication date: 01 September 2018
This article was made available online on 21 March 2018 as a Fast Track article with title: "3D-Modellierung einer Störungszone in geothermisch relevantem Gebiet anhand von 3D-Seismik unter Berücksichtigung geothermischer Nutzungsaspekte".
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