Database of petrophysical properties of the Mid-German Crystalline Rise
Reads0
Chats0
TLDR
Weinert et al. as discussed by the authors presented a database of petrophysical properties of the mid-German crystalline rise, measured on 224 locations in Bavaria, Hessen, and Thuringia and comprising 26,951 single data points.Abstract:
. Petrophysical properties are a key element for reservoir
characterization but also for interpreting the results of various
geophysical exploration methods or geophysical well logs. Furthermore,
petrophysical properties are commonly used to populate numerical models and
are often critically governing the model results. Despite the common need for
detailed petrophysical properties, data are still very scarce and often not
available for the area of interest. Furthermore, both the online research
for published property measurements or compilations, as well as dedicated
measurement campaigns of the selected properties, which require
comprehensive laboratory equipment, can be very time-consuming and costly.
To date, most published research results are often focused on a limited
selection of parameters only, and hence researching various petrophysical
properties, needed to account for the thermal–hydraulic–mechanical behaviour
of selected rock types or reservoir settings, can be very laborious. Since for deep geothermal energy in central Europe, the majority of the
geothermal potential or resource is assigned to the crystalline basement, a
comprehensive database of petrophysical properties comprising rock
densities, porosity, rock matrix permeability, thermal properties (thermal
conductivity and diffusivity, specific heat capacity) as well as rock
mechanical properties as compressional and shear wave velocities, unconfined
compressive strength, Young's modulus, Poisson's ratio, tensile strength and
triaxial shear strength was compiled from measurements conducted at the
HydroThermikum lab facilities of the Technical University of Darmstadt. Analysed samples were mostly derived from abandoned or active quarries and
natural or artificial outcrops such as road cuts, riverbanks or steep hillslopes. Furthermore, samples of the cored deep wells Worms 3 (samples from
2175–2195 m), Stockstadt 33R (samples from 2245–2267 m), Weiterstadt 1
(samples from 2502–2504 m), Tiefbohrung Gros-Umstadt/Heubach, B/89–B02
and the cored shallow wells (Forschungsbohrung Messel GA 1 and 2) as well
as GWM17 Zwingenberg, GWM1A Zwingenberg, Langenthal BK2/05, EWS267/1
Heubach, and archive samples of the Institut fur Steinkonservierung e.V. in Mainz originating from a comprehensive large-scale sampling campaign
in 2007 were investigated. The database (Weinert et al., 2020b; https://doi.org/10.25534/tudatalib-278 )
aims to provide easily accessible petrophysical properties of the Mid-German
Crystalline Rise, measured on 224 locations in Bavaria, Hessen,
Rhineland-Palatinate and Thuringia and comprising 26 951 single data points.
Each data point is addressed with the respective metadata such as the sample
identifier, sampling location, petrography and, if applicable, stratigraphy
and sampling depth (in the case of well samples).read more
Citations
More filters
Journal ArticleDOI
Multiscale Characterisation of Fracture Patterns of a Crystalline Reservoir Analogue
TL;DR: In this paper, the authors combine regional digital elevation model analysis and local outcrop investigation to characterize the fracture pattern of a crystalline reservoir analogue in the Northern Odenwald, with LiDAR and GIS structural interpretation, providing insights into the 3D architecture of the fault and fracture network, its clustering, and its connectivity.
Journal ArticleDOI
Integrated 3D geological modelling of the northern Upper Rhine Graben by joint inversion of gravimetry and magnetic data
Matthis Frey,S. Weinert,Kristian Bär,Jeroen van der Vaart,Chrystel Dezayes,Philippe Calcagno,Ingo Sass +6 more
TL;DR: In this paper, a stochastic joint inversion of the gravity and magnetic anomalies was performed that utilizes the principles of a Monte-Carlo-Markov chain simulation to interpret the Bouguer anomalies reasonably with respect to the crystalline basement.
Journal ArticleDOI
Structural Architecture and Permeability Patterns of Crystalline Reservoir Rocks in the Northern Upper Rhine Graben: Insights from Surface Analogues of the Odenwald
TL;DR: In this paper , the authors used a combined LiDAR and 2D profiles analysis to extract faults and fracture network geometrical parameters, including length distribution, orientation, connectivity, and topology.
Journal ArticleDOI
Rock alteration at the post-Variscan nonconformity: implications for Carboniferous–Permian surface weathering versus burial diagenesis and paleoclimate evaluation
TL;DR: In this paper, the petrological, mineralogical and geochemical characteristics of the Variscan basement rock as well as its overlying Permian volcano-sedimentary succession from a drill core in the Sprendlinger Horst, Germany, are analyzed by means of polarization microscopy, and environmental scanning electron microscope, X-Ray diffraction, x-ray fluorescence and inductively coupled mass spectrometry analyses.
References
More filters
Journal ArticleDOI
The ICS International Chronostratigraphic Chart
TL;DR: The International Commission on Stratigraphy (ICS) has a long tradition of producing international charts that communicate higher-order divisions of geological time and actual knowledge on the absolute numerical ages of their boundaries as mentioned in this paper.
Journal Article
The Permeability Of Porous Media To Liquids And Gases
TL;DR: The standard procedure for determining the permeability of porous media according to APZ Code No. 27 (first edition, October 1935) is based on the fundamental assumption that, as long as the rate of flow is proportional to the pressure gradient as mentioned in this paper.
Journal ArticleDOI
Permeability of the continental crust: Implications of geothermal data and metamorphic systems
TL;DR: In the upper crust, where hydraulic gradients are typically 10 MPa km−1, the mean permeabilities required to accommodate the estimated metamorphic fluid fluxes decrease from ∼10−16 m² to ∼ 10−18 m² between 5- and 12 km depth below ∼12 km, which broadly corresponds to the brittle-plastic transition as mentioned in this paper.
Book
Practical Handbook of Physical Properties of Rocks and Minerals
TL;DR: Inelastic properties of rocks and minerals: Strength and Rheology of Rocks and Minerals; Magnetic properties of Minerals and Rocks; Seismic Velocities. as discussed by the authors.