Unraveling the Formation of Large Amounts of Calcite Scaling in Geothermal Wells in the Bavarian Molasse Basin: A Reactive Transport Modeling Approach

Wanner, Christoph; Eichinger, Florian; Jahrfeld, Thomas; Diamond, Larryn William (2017). Unraveling the Formation of Large Amounts of Calcite Scaling in Geothermal Wells in the Bavarian Molasse Basin: A Reactive Transport Modeling Approach. Procedia earth and planetary science, 17, pp. 344-347. Elsevier 10.1016/j.proeps.2016.12.087

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Results from reactive transport simulations performed for the geothermal plant in Kirchstockach, located in the Bavarian Molasse Basin in southern Germany, are presented to unravel the formation of calcite scaling. Simulation results successfully predict the calcite scaling profile observed along the production well if supersaturation with respect to calcite is specified for the model water leaving the pump at 800 m depth. This observation is in good agreement with a previous study suggesting that gas exsolution (i.e., boiling) occurring at the pump due to an unwanted pressure drop is the most likely driver for the formation of those calcite scalings.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences

UniBE Contributor:

Wanner, Christoph and Diamond, Larryn William

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

1878-5220

Publisher:

Elsevier

Language:

English

Submitter:

Christoph Wanner

Date Deposited:

30 Jan 2017 16:27

Last Modified:

30 Jan 2017 16:27

Publisher DOI:

10.1016/j.proeps.2016.12.087

BORIS DOI:

10.7892/boris.93766

URI:

https://boris.unibe.ch/id/eprint/93766

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