Skip to Main content Skip to Navigation
Journal articles

Structural heritage, reactivation and distribution of fault and fracture network in a rifting context: Case study of the western shoulder of the Upper Rhine Graben

Abstract : In fractured reservoirs in the basement of extensional basins, fault and fracture parameters like density, spacing and length distribution are key properties for modelling and prediction of reservoir properties and fluids flow. As only large faults are detectable using basin-scale geophysical investigations, these fine-scale parameters need to be inferred from faults and fractures in analogous rocks at the outcrop. In this study, we use the western shoulder of the Upper Rhine Graben as an outcropping analogue of several deep borehole projects in the basement of the graben. Geological regional data, DTM (Digital Terrain Model) mapping and outcrop studies with scanlines are used to determine the spatial arrangement of the faults from the regional to the reservoir scale. The data shows that: 1) The fault network can be hier-archized in three different orders of scale and structural blocks with a characteristic structuration. This is consistent with other basement rocks studies in other rifting system allowing the extrapolation of the important parameters for modelling. 2) In the structural blocks, the fracture network linked to the faults is linked to the interplay between rock facies variation linked to the rock emplacement and the rifting event.
Document type :
Journal articles
Complete list of metadata

https://hal.univ-lorraine.fr/hal-02457294
Contributor : Yves Geraud <>
Submitted on : Tuesday, June 23, 2020 - 11:24:58 PM
Last modification on : Friday, February 5, 2021 - 2:08:04 PM
Long-term archiving on: : Wednesday, September 23, 2020 - 7:56:03 PM

Licence


Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives 4.0 International License

Identifiers

Citation

Lionel Bertrand, Jessie Jusseaume, Yves Géraud, Marc Diraison, Pierre-Clément Damy, et al.. Structural heritage, reactivation and distribution of fault and fracture network in a rifting context: Case study of the western shoulder of the Upper Rhine Graben. Journal of Structural Geology, Elsevier, 2018, 108, pp.243-255. ⟨10.1016/j.jsg.2017.09.006⟩. ⟨hal-02457294⟩

Share

Metrics

Record views

85

Files downloads

185