Exploration-relevant sandstones of the Valanginium in Lower Saxony 1: 500 000 — Permeability from well measurements

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Provided by Bundesamt für Kartographie und Geodäsie

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Dataset information

Catalog
Country of origin
Updated
Created
2019.11.01
Available languages
German
Keywords
Geologie, NIBIS-Metadaten
Quality scoring

Dataset description

The overview map shows the distribution of the Valanginium (lower chalk) in the Lower Saxony Basin and presents in particular exploration-relevant sandstones and their properties. Regionally contiguous sandstones with a thickness of at least five metres are referred to as exploration relevant. For these units, a potential as geothermally usable aquifers can be presumed, which, however, must be demonstrated on a site-by-case basis. This is shown on the overview map of claystones, siltstones, clay-silty sandstones and low-powered sandstones. Porosity, permeability and transmissivity of lithologies have not been taken into account during mapping, but are indicated as drill-related parameters where available. Sandstone permeability was calculated from the information from the hydrocarbon database of drill core data and, if available, from well measurements. Permeability value classes are given in Millidarcy (mD) and square meters (m²).
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