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Accurate Geofluid Properties as key to Geothermal Process Optimisation

Deliverables

GEOPRO KPI specification

As part of task 1.2, this delievarble will report on the KPIs benchmarked for success criterion for enthalpy calculation, scale reduction, bubble formation and supercritical “vectors to ore” performance.

1D transient FAS with exiting thermodynamic models

As part od task 2.2, the deliverable will report on the simulations of representative test cases for typical wellbore as well as topside pipes carried out for the three different sites in GEOPRO (Hengill/IDDP2&3, Insheim, Kilzidare). In addition to flow parameters such as flow rates, pressure profile, temperature profile, volume and mass fractions, the base line simulations will also include simulations of scaling- , corrosion-, and erosion rates based on the currently implemented models

Reaction kinetics

As part os task 34 the deliverable reports on performance of precipitation kinetics of selected solids from supercritical fluids

Computational chemistry simulations of supercritical reservoir fluid chemistry

As part of task 45 the deliverable reports on use of computational chemistry to improve understanding of supercritical chemistry derive rigorous molecular insights into the molecularscale origins of empirical correlations and to inform the EoS development work of Task 43 with data and predicted trends for inter and extrapolation of experimental data

Data quality and precision specification

As part of task 1.4, the deliverable will report on confidence in existing data and suggest appropriate ways of factoring in uncertainty in the approaches and tools defined in the project. Identification and dealing with censored data, particularly those related to reliability and maintenance will be investigated.

Geothermal multiphase flow loop testbed

As part of task 21 the deliverable will report on the development of smallscale multiphase flow loop for geothermal fluid testing for fileds in Insheim Hengill and Kilzidare

Detailed Case study scenario specification

As part of task 1.3, the deliverable will report on the case studies that will be carried out to demonstrate the GEOPRO outputs. The case study targets will be written up as living documents, agreed by the users and signed on to by the development teams.

Zorlu case study

As part of task 38 the deliverable reports on the Zorlu case study centered on two operational problems that relate to poor knowledge of physicochemical properties of very CO2rich geothermal brines and carbonate scaling in surface pipelines and during reinjection

Reaction kinetics 2

As part of task 44 the deliverable reports on parametrization of semiempirical kinetic equations and creation of models for the timedependence of scaling reactions from supercritical fluids

Gap and priority analysis for geochemical datasets and EoS

As part of task 3.1, the deliverable will report on data analysis achieved as a result of workshops, data comparison with the plant requirements including formulation of desired EoS structures, to provide frameworks for the data that are compatible with the users’ operating practices.

"Experimental determination of the solubility of important minerals under ""supercritical reservoir conditions"" conditions"

As part of task 42 thsi deliverable reports on experimental determination of the solubility of important minerals under supercritical reservoir conditions conditions This includes salts like chlorides sulphatesm carbonates and simple oxides and silicates

Gap and Priority analyses

As part of task 4.1, the deliverable reports on the investigative study to ensure that the experimental and modeling work meets the information standards required by operators of geothermal facilities.

A project website

As part of task 7.4, this deliverable announces the launch of the project website.

Publications

Advanced well model for superhot and saline geothermal reservoirs

Author(s): Benoit Lamy-Chappuis, Alina Yapparova, Thomas Driesner
Published in: Geothermics, 2022, ISSN 1879-3576
Publisher: Elsevier
DOI: 10.1016/j.geothermics.2022.102529

A Peaceman-type well model for the 3D Control Volume Finite Element Method and numerical simulations of supercritical geothermal resource utilization

Author(s): Alina Yapparova; Benoit Lamy-Chappuis; Samuel W. Scott; Thomas Driesner
Published in: Geothermics, Issue 4, 2022, Page(s) 102516, ISSN 1879-3576
Publisher: Elsevier
DOI: 10.1016/j.geothermics.2022.102516

Cold water injection near the magmatic heat source can enhance production from high-enthalpy geothermal fields

Author(s): Alina Yapparova; Benoit Lamy-Chappuis; Samuel W. Scott; Gunnar Gunnarsson; Thomas Driesner
Published in: Geothermics, 2023, Page(s) 102744, ISSN 1879-3576
Publisher: Elsevier
DOI: 10.1016/j.geothermics.2023.102744

Simulations of the IDDP-2 well, Reykjanes, Iceland, and its behavior in different operation scenarios

Author(s): Benoit Lamy-Chappuis, Alina Yapparova, Thomas Driesner
Published in: Geothermics, 2023, ISSN 1879-3576
Publisher: Elsevier
DOI: 10.1016/j.geothermics.2023.102790

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