Seismic characterization of geothermal sedimentary reservoirs: A field example from the Copenhagen Area, Denmark

Kenneth Bredesen, Esben Dalgaard, Anders Mathiesen, Rasmus Rasmussen, Niels Balling

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

We have seismically characterized a Triassic-Jurassic deep geothermal sandstone reservoir north of Copenhagen, onshore Denmark. A suite of regional geophysical measurements, including prestack seismic data and well logs, was integrated with geologic information to obtain facies and reservoir property predictions in a Bayesian framework. The applied workflow combined a facies-dependent calibrated rock-physics model with a simultaneous amplitude-variation-with-offset seismic inversion. The results suggest that certain sandstone distributions are potential aquifers within the target interval, which appear reasonable based on the geologic properties. However, prediction accuracy suffers from a restricted data foundation and should, therefore, only be considered as an indicator of potential aquifers. Despite these issues, the results demonstrate new possibilities for future seismic reservoir characterization and rock-physics modeling for exploration purposes, derisking, and the exploitation of geothermal energy as a green and sustainable energy resource.

Original languageEnglish
Pages (from-to)T275-T291
Number of pages17
JournalInterpretation
Volume8
Issue number2
DOIs
Publication statusPublished - May 2020

Keywords

  • geothermal
  • inversion
  • reservoir characterization
  • rock physics

Programme Area

  • Programme Area 3: Energy Resources

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