KIT | KIT-Bibliothek | Impressum | Datenschutz

Lateral Heterogeneity of Reservoir Properties in an Homogenous Lower Triassic Sandstone, Southern Germany

Schmidt, Christina; Busch, Benjamin; Hilgers, Christoph

Abstract (englisch):
Characterizing a subsurface reservoir, the geologist is reliant on core material, which allows for only a small-scale view into the target area. Hence, analytically determined reservoir properties from core material can barely serve as proxy for a large 3D prospect. This analog study of a proposedly homogenous Lower Triassic sandstone in Southern Germany offers a means to fill gaps like sedimentary facies and clearly points out the variability along a lateral section concerning porosity φ and horizontal permeability kh. Successively, the measured plugs served for petrographic assessment.
The quarry Röttbach is located in Lower Franconia and consists of very fine- to fine-grained, dark red sandstones that are of fluvial origin. Macroscopic observations reveal a homogenous, massive sandstone with few localized features like indistinct, tangential cross beds as well as clusters of silty to clayey rip up-clasts. A striking feature are bleaching phenomena that may occur pervasive, lamina-bound or speckled.
Petrophysical measurements yield φ-values of 11-19 % (avg. 16 %) while kh ranges from 0.02 to 48 mD (avg. 9 mD). Samples originate from three horizontal profiles of different stratigraphic height within the outcrop. ... mehr

Open Access Logo

Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Publikationstyp Vortrag
Publikationsjahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000126728
Veranstaltung DGMK/ÖGEW-Frühjahrstagung (2019), Celle, Deutschland, 25.04.2019 – 26.04.2019
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page