RoSim

Advanced reservoir simulation workflow for geothermal systems

Publieke samenvatting / Public summary

Aanleiding
Geothermal energy production is quickly ramping up towards the envisioned minimum production of 15 PJ in 2030. This requires improving the efficiency of geothermal field development and production optimization as well as the reduction of risks (e.g. seismic, early cold water break-through, unsolicited interference between doublet systems). The predominantly used 1D tools as currently used in the sector lack the predictive capabilities to optimize these aspects.
Therefore a 3D reservoir model generation and simulation framework is required1, which can handle complex geologies often encountered in the Dutch subsurface and which is accessible to the Dutch geothermal community. 3D simulation workflows will improve predictions of future energy production which will thereby help improve the design and operation of fields, enabling safe, responsible and reliable exploitation of Dutch geothermal resources.
Available 3D simulation frameworks (originating from the oil & gas sector) are hardly used in the geothermal market, as they lack the appropriate physics, require complex pre- and post-processing steps and are computationally expensive.

Doelstelling
This project aims to make available a 3D reservoir model generation and simulation framework for the Dutch geothermal sector (ROSIM) which can handle complex geologies often encountered in the Dutch subsurface and which is accessible to the Dutch geothermal community.
It will contain the relevant physics for accurate predictions of geothermal operations (e.g. correct brine properties, temperature dependent viscosity, optionally density for High Temperature Storage (HTS) and correct boundary conditions for thermal solutions), and will be marked by high computational performance. The ROSIM framework will also allow for 3D layered faulted reservoirs as well as relevant well configurations and trajectories.

Korte omschrijving
WP0 workflow design & specification
We develop jointly with stakeholders a detailed design for ROSIM and the underlying workflow components, select building blocks and select cases.

WP1 development of modelling framework
We develop the open source (robust) simulation workflow, augmented with / adapted to the required physics and performance needs for Dutch geothermal operators

WP2 pre-processing and postprocessing
Development of the integrated workflow including pre- and post-processing

WP3 Model Integration and case studies
Integration of workflow components into the public ROSIM workflow tools (anticipated to be open source), demonstration in representative case studies of stakeholders.

WP4 management
This includes the management of the project

Resultaat
The overall deliverable of this project is a tested, validated and benchmarked, dedicated (open source) 3D reservoir modeling and simulation framework for Dutch geothermal reservoirs. We will do this by selecting and adapting / extending state-of-the-art available 3D workflows to the specifics of Dutch geothermal systems.
The resulting simulation framework will be made available as an open source model for the Dutch geothermal community.