Descrizione del progetto
Modelli matematici per sistemi geotermici ad alte temperature
Dinamiche complesse come l’ebollizione dei fluidi geotermici e la deformazione della roccia fratturata, derivanti dallo sviluppo e dalla produzione di risorse geotermiche ad elevate temperature, non sono ancora chiare. Il progetto MaPSI, finanziato dall’UE, fornirà i modelli matematici e la tecnologia di simulazione necessari per valutare l’interazione tra processo e struttura del sottosuolo, nel contesto della stimolazione idraulica e termica durante lo sviluppo e la produzione di risorse geotermiche ad elevate temperature. Il progetto svilupperà modelli matematici e numerici all’avanguardia per simulare il flusso multifase e supporti termo-poroelastici a cambiamento di fase con fratture deformanti e propaganti. MaPSI promuoverà le competenze e migliorerà la comprensione dei processi accoppiati nello sviluppo e nella produzione di sistemi geotermici ad alte temperature nell’ottica di uno sfruttamento sostenibile delle risorse.
Obiettivo
In the development and production of high-temperature geothermal resources, large induced gradients in pressure and temperature during injection operations results in complex dynamics. This includes boiling of geothermal fluids and deformation of the fractured rock, dynamics that are currently not well understood. This provides a core motivation as well as challenging test cases for the mathematical and numerical developments in the MaPSI project. MaPSI has as its main objective to provide mathematical models and simulation technology required to assess subsurface process-structure interaction in the context of hydraulic and thermal stimulation in development and production of high-temperature geothermal resources.
This will be achieved by a highly novel and timely research programme which will:
- Combine new techniques with recently developed methodology by my own research group to develop unprecedented mathematical and numerical approaches to enable modelling of multiphase flow and phase-change in thermo-poroelastic media with fractures that may slip, deform and propagate;
- Advance competences in the main scientific fields involved; and
- Improve understanding of coupled processes in development and production of high-temperature geothermal systems towards sustainable exploitation of the resource.
The project will provide new mathematical and numerical models along with open-source software that have capabilities in modelling of coupled process-structure interaction in fractured porous media that greatly exceed those of existing platforms. Specific case-studies will assess process-structure interactions for development and production operations in high-temperature geothermal systems, including superheated and supercritical regimes, providing timely contributions to further developments of these resources.
Campo scientifico
Parole chiave
Programma(i)
Argomento(i)
Meccanismo di finanziamento
ERC-COG - Consolidator GrantIstituzione ospitante
5020 Bergen
Norvegia