Articles | Volume 11, issue 4
Research article
05 Jul 2020
Research article |  | 05 Jul 2020

Diagenetic evolution of fault zones in Urgonian microporous carbonates, impact on reservoir properties (Provence – southeast France)

Irène Aubert, Philippe Léonide, Juliette Lamarche, and Roland Salardon

Related subject area

Subject area: The evolving Earth surface | Editorial team: Rock deformation, geomorphology, morphotectonics, and paleoseismology | Discipline: Structural geology
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Cited articles

Agosta, F., Prasad, M., and Aydin, A.: Physical properties of carbonate fault rocks, Fucino Basin (Central Italy): implications for fault seal in platform carbonates, Geofluids, 7, 19–32,, 2007. 
Agosta, F., Mulch, A., Chamberlain, P., and Aydin, A.: Geochemical traces of CO2-rich fluid flow along normal faults in central Italy, Geophys. J. Int., 174, 1074–1096,, 2008. 
Agosta, F., Alessandroni, M., Antonellini, M., Tondi, E., and Giorgioni, M.: From fractures to flow: A field-based quantitative analysis of an outcropping carbonate reservoir, Tectonophysics, 490, 197–213,, 2010. 
Agosta, F., Ruano, P., Rustichelli, A., Tondi, E., Galindo-Zaldívar, J., and Sanz de Galdeano, C.: Inner structure and deformation mechanisms of normal faults in conglomerates and carbonate grainstones (Granada Basin, Betic Cordillera, Spain): Inferences on fault permeability, J. Struct. Geol., 45, 4–20,, 2012. 
Alikarami, R. and Torabi, A.: Geomechanics for Energy and the Environment Micro-texture and petrophysical properties of dilation and compaction shear bands in sand, Geomech. Energy Envir., 3, 1–10,, 2015. 
Short summary
In carbonate rocks, fault zones influence the fluid flows and lead to important diagenetic processes modifying reservoir properties. The aim of this study is to identify the impact of two polyphase fault zones on fluid flows and reservoir properties during basin history. We determined petro-physic and diagenetic properties on 92 samples. This study highlights that fault zones acted as drains at their onset and induced fault zone cementation, which has strongly altered local reservoir properties.