1887

Abstract

Summary

The subsurface of Denmark stores significant amounts of renewable geothermal energy which may contribute to domestic heating for centuries. However, establishing a successful geothermal plant with robust production capacity require reservoirs with sufficient high porosity and permeability. Modern quantitative seismic interpretation is a good approach to de-risk prospects and gain reservoir insight, but is so far not widely used for geothermal applications. In this study we perform a rock physics feasibility study as a pre-step towards quantitative seismic interpretation of geothermal reservoirs, primarily in areas around Copenhagen. The results argue that it may be possible to use AVO and seismic inversion data to distinguish geothermal sandstone reservoirs from surrounding shales and to estimate porosity and permeability. Moreover, this study may represent new possibilities for future rock physics analysis serving as a tool in exploration and characterization of green geothermal reservoirs.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201801408
2018-06-11
2020-05-30
Loading full text...

Full text loading...

References

  1. Avseth, P., Skjei, N., Mavko, G.
    [2016] Rock-physics modeling of stress sensitivity and 4D time shifts in patchy cemented sandstones — Application to the Visund Field, North Sea. The Leading Edge, 35(10), 868–878.
    [Google Scholar]
  2. Buland, A., Kolbjørnsen, O., Hauge, R., Skjæveland, Ø. and Duffaut, K.
    [2008] Bayesian lithology and fluid prediction from seismic prestack data. Geophysics, 73(3), C13–C21.
    [Google Scholar]
  3. Doyen, P.
    [2007] Seismic reservoir characterization: An earth modelling perspective. EAGE publications.
    [Google Scholar]
  4. Grana, D., Verma, S., Pafeng, J., Lang, X., Sharma, H., Wu, W., McLaughlin, F., Campbell, E., Ng, K., and Alvarado, V.
    [2017] A rock physics and seismic reservoir characterization study of the Rock Springs Uplift, a carbon dioxide sequestration site in Southwestern Wyoming. International Journal of Greenhouse Gas Control, 63, 296–309.
    [Google Scholar]
  5. Vosgerau, H., Gregersen, U., Kristensen, L., Lindström, S., Mathiesen, A., Nielsen, C. M., Olivarius, M., and Nielsen, L.H.
    [2017] Towards a geothermal exploration well in the Gassum Formation in Copenhagen. Geological Survey of Denmark and Greenland Bulletin, 38, 29–32.
    [Google Scholar]
  6. Waters, K.D. and Kemper, M.A.
    [2014] Find the rocks and the fluids will follow—AVO as a tool for lithology classification. Interpretation, 2(2), SC77–SC91.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201801408
Loading
/content/papers/10.3997/2214-4609.201801408
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error