Multidisciplinary approach to assess geothermal potential, Tønder area, North German Basin
| Autor: | Anders Mathiesen, Mette Olivarius, Troels Laier, Carsten M. Nielsen, Lars Kristensen, Morten Leth Hjuler, Lars Henrik Nielsen, Lars Ole Boldreel |
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| Rok vydání: | 2019 |
| Předmět: |
Provenance
Anhydrite Renewable Energy Sustainability and the Environment Petrophysics 0211 other engineering and technologies Geology 02 engineering and technology Structural basin engineering.material 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Sedimentary depositional environment chemistry.chemical_compound chemistry Reservoir modeling engineering Halite 021108 energy Petrology Geothermal gradient 0105 earth and related environmental sciences |
| Zdroj: | Geothermics. 78:211-223 |
| ISSN: | 0375-6505 |
| DOI: | 10.1016/j.geothermics.2018.12.001 |
| Popis: | This study demonstrates how a multidisciplinary approach can optimize reservoir characterization and thereby reduce the risk of failure for a potential geothermal development. A geological model of three Lower Triassic low-enthalpy geothermal reservoirs is presented based on available existing data, where 2D and 3D seismic surveys and five deep wells provide data for structural, petrophysical, petrographical, provenance and pore water analysis. Reservoir properties and continuity are controlled by depositional environment and are further affected by the highly saline formation brine, nitrogen gas and cementation by carbonate, anhydrite and halite. The lower Bunter sandstone forms a continuous reservoir of excellent quality, the middle Bunter sandstone constitutes a potential upside reservoir and the upper Bunter sandstone displays variable reservoir properties due to spatial variations in reservoir continuity. |
| Databáze: | OpenAIRE |
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