1887

Abstract

Summary

3D seismic measurements have been performed in 2012 to explore a petrothermal reservoir in a crystalline environment (granite intrusion, metamorphic cover) within the Erzgebirge in Saxony. The intention and challenge is to image and characterize a steeply dipping fault zone and therewith potentially permeable fracture zones at target depths of 5–6 km and temperatures well above 150 °C. The vibroseis technique was used in the experiment, accompanied by a special explosive seismic experiment. Common-reflection-surface (CRS) processing with subsequent post-stack and pre-stack time migration was highly successful. A rich repertoire of structures within the granite pluton has been imaged. Many of these structures are steeply dipping normal faults and their conjugate faults with high impdedance contrasts and subhorizontal reflectors at the base of the granite.

The 3D seismic technique has been proven as an indispensable tool to define an optimum drill path in a crystalline environment.

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/content/papers/10.3997/2214-4609.20141211
2014-06-16
2020-08-05
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References

  1. Jäger, R., Mann, J., Höcht, G. and Hubral, P.
    [2001] Common-reflection-surface stack: Image and attributes. Geophysics, 66, 97–109.
    [Google Scholar]
  2. LfULG Sachsen
    LfULG Sachsen [2011] Forschungsbericht Tiefengeothermie Sachsen. Schriftenreihe des LfULG, Heft 9/2011, appendices, Landesamt für Umwelt, Landwirtschaft und Geologie, Freistaat Sachsen, 127.
    [Google Scholar]
  3. Paschen, H., Oertel, D. and Grünwald, R.
    [2003] Möglichkeiten der geothermischen Stromerzeugung in Deutschland. Sachstandsbericht, Büro für Technikfolgen-Abschätzung beim Deutschen Bundestag, Arbeitsbericht 84, Berlin, 129.
    [Google Scholar]
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