A research and production geothermal project on the TU Delft campus

Voskov, D.; Abels, H.A.; Vardon, Phil; Vargas Meleza, L.; Verschuur, D.; Vondrak, A.G.; Barnhoorn, A.; Chen, Y.; Daniilidis, A.; Bruhn, David; Drijkoningen, G.; Geiger, S.; Laumann, S.; Song, G.

A research and production geothermal project on the TU Delft campus

initial modeling and establishment of a digital twin

Conference paper (2024)

Authors

D. Voskov Reservoir Engineering - , Stanford University

H.A. Abels Applied Geology -

Phil Vardon

L. Vargas Meleza Lab Geoscience and Engineering -

D. Verschuur Applied Geophysics and Petrophysics -

A.G. Vondrak Lab Geoscience and Engineering -

A. Barnhoorn Applied Geophysics and Petrophysics -

Y. Chen Reservoir Engineering -

A. Daniilidis Reservoir Engineering -

David Bruhn Reservoir Engineering - , Fraunhofer IEG

G. Drijkoningen Applied Geophysics and Petrophysics -

S. Geiger Applied Geology -

S. Laumann Applied Geophysics and Petrophysics -

G. Song Applied Geology -

Research Group

Reservoir Engineering () (TU Delft)

Geothermal doublet Uncertainty quantification Digital twin Water loss Direct-use heating

To reference this document use:

http://resolver.tudelft.nl/uuid:bbe486ed-65a4-429f-92c5-e2275f747b5e

More Info

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Published Date

2024

Language

English

Reuse Rights

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Reservoir Engineering

Abstract

Nearly half of the Netherlands’ natural gas consump tion is allocated to heating, with direct -use geothermal heating being one of the available low-carbon energy solutions. A geothermal well doublet, designed with the two primary aims of research and commercial heat supply, is currently being installed on the campus of Delft University of Technology. The project is a key national research infrastructure and is being incorporated into the European sustainable and distributed infrastructure (EPOS: European Plate Observing System, https://www.epos-eu.org/), such that accessibility and data availability will be as wide as possible. All observations will be included in a digital-twin framework, which will allow us to make better decisions in future geothermal projects. The project includes a comprehens ive research program, involving the installation of a wide range of instruments alongside an extensive logging and coring program and monitoring network. The doublet has been cored, with substantial continuous samples from the heterogeneous reservoir, alongside a large suite of well logs in both the reservoir and overlying geological units. Such investigation is rarely undertaken in geothermal projects. A fiber-optic cable will monitor the producer well all the way down to the reservoir section, at approximately 2300m depth, in the Lower Cretaceous Delft Sandstone that is used as a geothermal reservoir in a series of existing and planned doublets in the West Netherlands Basin. A local seismic monitoring network has been installed in the surrounding area with the aim of monitoring very low-magnitude natural or induced seismicity. A vertical observation well with electromagnetic sensors will be drilled in the near future between the injector and producer to monitor cold-front propagation. This paper presents the initial modeling for the project and steps towards the production of a digital twin. Two modeling examples in the paper will emp hasize current operational challenges relevant to the project.

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