Impact of sedimentology and diagenesis on the petrophysical properties of a tight oolitic carbonate reservoir. The case of the Oolithe Blanche Formation (Bathonian, Paris Basin, France)

• Published in: Marine and petroleum geology Vol. 48; pp. 323 - 340
• Main Authors: Makhloufi, Yasin, Collin, Pierre-Yves, Bergerat, Françoise, Casteleyn, Lisa, Claes, Steven, David, Christian, Menendez, Beatriz, Monna, Fabrice, Robion, Philippe, Sizun, Jean-Pierre, Swennen, Rudy, Rigollet, Christophe
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2013; Elsevier
• Subjects: Diagenesis; Earth Sciences; Earth, ocean, space; Exact sciences and technology; Fluid-flow properties; Hydrocarbons; Ooids; Paris Basin; Permeability; Petrophysics; Porosity; Sciences of the Universe; Sedimentary rocks; Stratigraphy; Tight carbonate reservoir; France; Paris Basin; Europe; Western Europe; Diagenesis; Fluid-flow properties; Tight carbonate reservoir; Ooids; Petrophysics; Porosity; Permeability; Paris Basin; reservoir rocks; Mesozoic; permeability; reservoirs; image analysis; principal components analysis; compaction; diagenesis; models; porosity; velocity; Middle Jurassic; carbonates; Dogger; heterogeneity; grains; Jurassic; Bathonian; tortuosity; Phanerozoic; statistical analysis; petroleum exploration
• ISSN: 0264-8172; 1873-4073
• DOI: 10.1016/j.marpetgeo.2013.08.021

The Oolithe Blanche Formation was studied in three quarries, located at the south-eastern edge of the Paris Basin (France). Heterogeneities in reservoir properties were assessed through a sedimentological, diagenetic and petrophysical study. The relationships between depositional settings, diagenesis and petrophysical properties were analysed using detailed petrographic studies, image analysis, Nano CT-scans and petrophysical measurements. The carbonate reservoir pore network is mainly controlled by intraparticle microporosity which ensures the connectivity with interparticle meso- and macroporosity. Early cementation vs. early compaction processes (mainly grain interpenetration) may have considerable influence on fluid-flow properties and parameters such as permeability, acoustic velocities and tortuosity. Better reservoir properties are found when compaction processes begin before cementation. From statistical analyses, e.g. Principal Component Analysis and Linear Discriminant Analysis, a sedimentological/diagenetic and petrophysical model is proposed that is in a good agreement with the geological model developed from field work. •The Oolithe Blanche Formation shows heterogeneities on its reservoir properties.•Sedimentology and diagenesis have an important control on petrophysical properties.•It is possible to establish correlation links between those parameters.•New relationships among diagenetic phases and petrophysical properties described.•Our predictive model on field outcrops can be applied to sub-surface data.