Pre-drilling geothermal assessment of porosity and permeability of the Bunter Sandstone Formation, onshore Denmark

Authors

  • Morten Leth Hjuler Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark
  • Lars Kristensen Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark

DOI:

https://doi.org/10.34194/geusb.v38.4394

Abstract

Denmark constitutes a low-enthalpy geothermal area. Current geothermal production takes place from two sandstone-rich formations: the Bunter Sandstone and Gassum Formations. These formations form major potential geothermal reservoirs, but information about the permeability of the potential sandstone reservoirs is difficult to obtain. This may be explained by deposition in a variety of environments under different climatic conditions, and by variable diagenetic overprint (Olivarius et al. 2015). Thus, the sandstone characteristics and properties are diverse, and in areas where wells are scarce, the assessment of the extent and reservoir properties of sandstone layers is associated with much uncertainty. In order to reduce exploration risk it is therefore essential to develop a robust method for prediction of porosity and permeability prior to drilling.

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Published

2017-07-31

How to Cite

Hjuler, M. L. ., & Kristensen, L. . (2017). Pre-drilling geothermal assessment of porosity and permeability of the Bunter Sandstone Formation, onshore Denmark. GEUS Bulletin, 38, 33–36. https://doi.org/10.34194/geusb.v38.4394

Issue

Section

RESEARCH ARTICLE | SHORT

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