Numerical quantification of barite reservoir scaling and the resulting injectivity loss in geothermal systems

Dissertation, Universität Potsdam, 2022

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	Tranter, Morgan Alan (VerfasserIn)
Körperschaft:	Universität Potsdam (Grad-verleihende Institution)
Weitere Verfasser:	Kühn, Michael (AkademischeR BetreuerIn), Scheytt, Traugott (AkademischeR BetreuerIn), Churakov, Sergey (AkademischeR BetreuerIn)
Format:	UnknownFormat
Sprache:	eng
Veröffentlicht:	Potsdam 2022
Schlagworte:	Hochschulschrift > Tiefengeothermie > Permeabilität > Hydrogeochemie > Baryt > Fällung > Modellierung > Tiefe geothermische Energie > Speichergestein > Niederschlag
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Dissertation, Universität Potsdam, 2022 Due to the major role of greenhouse gas emissions in global climate change, the development of non-fossil energy technologies is essential. Deep geothermal energy represents such an alternative, which offers promising properties such as a high base load capability and a large untapped potential. The present work addresses barite precipitation within geothermal systems and the associated reduction in rock permeability, which is a major obstacle to maintaining high efficiency. In this context, hydro-geochemical models are essential to quantify and predict the effects of precipitation on the efficiency of a system.The objective of the present work is to quantify the induced injectivity loss using numerical and analytical reactive transport simulations. For the calculations, the fractured-porous reservoirs of the German geothermal regions North German Basin (NGB) and Upper Rhine Graben (URG) are considered. Similar depth-dependent precipitation potentials could be determined for both investigated regions (2.8-20.2 g/m3 fluid). ...
Beschreibung:	kumulative Dissertation Literaturverzeichnis: Seite 109-118 Date of defense: 29.06.2022
Beschreibung:	xvii, 118 Seiten Illustrationen, Diagramme