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Tian, X. (author), Volkov, Oleg (author), Voskov, D.V. (author)In this study, we present an efficient and flexible adjoint-based framework for history matching and forecasting geothermal energy extraction at a large scale. In this framework, we applied the Principal Component Analysis to reduce the parameter space for representing the complex geological model. The adjoint method is implemented for...journal article 2024
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MR. SERRAO SEABRA, G.S.S. (author), Barbosa Machado, Marcos Vitor (author), Delshad, Mojdeh (author), Sepehrnoori, Kamy (author), Voskov, D.V. (author), Vossepoel, F.C. (author)Geological Carbon Storage (GCS) involves storing CO2 emissions in geological formations, where safe containment is challenged by structural and stratigraphic trapping and caprock integrity. This study investigates flow and geomechanical responses to CO2 injection based on a Brazilian offshore reservoir model, highlighting the critical interplay...journal article 2024
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Impact of CO2 hydrates on injectivity during CO2 storage in depleted gas fields: A literature reviewAghajanloo, M. (author), Yan, L. (author), Berg, Steffen (author), Voskov, D.V. (author), Farajzadeh, R. (author)Carbon dioxide capture and storage in subsurface geological formations is a potential solution to limit anthropogenic CO<sub>2</sub> emissions and combat global warming. Depleted gas fields offer significant CO<sub>2</sub> storage volumes; however, injection of CO<sub>2</sub> into these reservoirs poses some potential challenges for the...journal article 2024
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Tian, X. (author), Wapperom, M.B. (author), Gunning, James (author), Jackson, Samuel (author), Wilkins, Andy (author), Green, Chris (author), Ennis-King, Jonathan (author), Voskov, D.V. (author)In this study, we conduct a comprehensive history matching study for the FluidFlower benchmark model. This benchmark was prepared and organized by the University of Bergen, the University of Stuttgart, and Massachusetts Institute of Technology, for promoting understanding of the complex physics of geological carbon storage (GCS) through in...journal article 2024
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Abels, H.A. (author), Barnhoorn, A. (author), Daniilidis, Alexandros (author), Bruhn, D.F. (author), Drijkoningen, G.G. (author), Elliott, K.N. (author), van Esser, B.T.M. (author), Laumann, S.J. (author), van Paassen, P.A.M. (author), Vargas Meleza, L. (author), Vondrak, A.G. (author), Voskov, D.V. (author), Vardon, P.J. (author)A geothermal doublet has been installed in a sedimentary reservoir for direct-use heating on the TU Delft campus, targeted to supply around 25 MW of thermal energy at peak conditions. This contribution presents the implementation and initial data collection from the doublet, including an initial evaluation of the logging and coring campaign....abstract 2024
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Mansour Pour, K. (author), Voskov, D.V. (author)CO2 utilization and storage (CCUS) simulation in subsurface reservoirs with complex heterogeneous structures necessitates a model that can capture multiphase compositional flow and transport. The governing equations are highly nonlinear due to the complex thermodynamic behavior, which involves the appearance and disappearance of multiple phases....journal article 2023
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Hampson, G. (author), Martinius, A.W. (author), Jackson, M. (author), Krevor, S. (author), Storms, J.E.A. (author), Voskov, D.V. (author), Hajibeygi, H. (author), Geiger, S. (author)This poster outlines a hierarchical, multiscale modelling approach that is adapted from proven hydrocarbon reservoir characterization workflows to determine which 3D sedimentological and stratigraphic heterogeneity types at which temporal and spatial scales and in which configurations are most important for successful long-term CO2 storage. The...conference paper 2023
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Wapperom, M.B. (author), Lyu, X. (author), Nichita, D. V. (author), Voskov, D.V. (author)In this work, we present a unified framework for the simulation of CO<sub>2</sub> sequestration problems at various time and space scales. The parametrization technique utilizes thermodynamic state-dependent operators expressing the governing equations for the thermal-compositional-reactive system to solve the nonlinear problem. This approach...conference paper 2023
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Hadjisotiriou, George (author), Mansour Pour, K. (author), Voskov, D.V. (author)In this study, we utilize deep neural networks to approximate operators of a nonlinear partial differential equation (PDE), within the Operator-Based Linearization (OBL) simulation framework, and discover the physical space for a physics-based proxy model with reduced degrees of freedom. In our methodology, observations from a high-fidelity...conference paper 2023
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Tian, X. (author), Voskov, D.V. (author)In this paper, we present an efficient inverse modeling framework for energy transition applications. The key feature of this framework is a combination of adjoint gradients and Operator-based Linearization (OBL) technique to achieve high efficiency in inverse modeling based on forward simulations. This framework allows conducting the history...conference paper 2023
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Li, Longlong (author), Khait, M. (author), Voskov, D.V. (author), Terekhov, Kirill M. (author), Abushaikha, Ahmad (author)We apply Massively Parallel Interface for MPFA-O scheme with state-of-the-art Operator-Based Linearization (OBL) approach for multiphase flow in porous media. The implementation of MPFA-O scheme enhances the modelling capabilities for non-K-orthogonal mesh. A fully implicit scheme is applied to guarantee the stability of solutions when a mass...journal article 2023
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Mansour Pour, K. (author), Voskov, D.V. (author), Bruhn, D.F. (author)Simulation of CO<sub>2</sub> utilization and storage (CCUS) in subsurface reservoirs with complex heterogeneous structures requires a model that captures multiphase compositional flow and transport. Accurate simulation of these processes necessitates the use of stable numerical methods that are based on an implicit treatment of the flux term...journal article 2023
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Lyu, X. (author), Voskov, D.V. (author)A consistent thermodynamic model based on a combination of the Peng-Robinson equation of state for gas components with an activity model for the aqueous phase is utilized in this study to accurately evaluate the performance of geologic CO<sub>2</sub> storage in saline aquifers. To account for thermal effects, the phase enthalpy and...journal article 2023
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Mansour Pour, K. (author), Voskov, D.V. (author), Bruhn, D.F. (author)The energy transition is inevitable since approximately two-thirds of the current global GHG emissions are related to energy production. Subsurface can provide a great opportunity for innovative low-carbon energy solutions such as geothermal energy production, hydrogen storage, carbon capture, and sequestration, etc. Well and borehole...journal article 2023
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Tripuraneni, S. R. T. (author), Novikov, A. (author), Voskov, D.V. (author)Elliptic differential operators describe a wide range of processes in mechanics relevant to geo-energy applications. Extensively used in reservoir modeling, the Finite Volume Method with TPFA can be consistently applied to discretize only a specific type of application under severe assumptions. In this paper, we introduce a positivity...journal article 2023
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Flemisch, Bernd (author), Nordbotten, Jan M. (author), Geiger, S. (author), Hajibeygi, H. (author), Tian, X. (author), Voskov, D.V. (author), Wang, Y. (author), Wapperom, M.B. (author), Zhang, Z. (author)Successful deployment of geological carbon storage (GCS) requires an extensive use of reservoir simulators for screening, ranking and optimization of storage sites. However, the time scales of GCS are such that no sufficient long-term data is available yet to validate the simulators against. As a consequence, there is currently no solid basis...journal article 2023
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Wapperom, M.B. (author), Tian, X. (author), Novikov, A. (author), Voskov, D.V. (author)In this work, we describe our decisions made to perform the FluidFlower simulation study and discuss various aspects of the benchmark that are different from our usual subsurface simulation practice. We will discuss the impact of various modeling choices on the outcomes of the simulation models, such as gridding, discretization, and solver...journal article 2023
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Wang, Y. (author), Voskov, D.V. (author), Daniilidis, Alexandros (author), Khait, M. (author), Saeid, S. (author), Bruhn, D.F. (author)The efficient operation and management of a geothermal project can be largely affected by geological, physical, operational and economic uncertainties. Systematic uncertainty quantification (UQ) involving these parameters helps to determine the probability of the focused outputs, e.g., energy production, Net Present Value (NPV), etc. However,...journal article 2023
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Major, Márton (author), Daniilidis, Alexandros (author), Hansen, Thomas Mejer (author), Khait, M. (author), Voskov, D.V. (author)Focus is on comparing stochastic, process-based and deterministic methods for modelling heterogeneity in hydraulic properties of fluvial geothermal reservoirs. Models are considered a generalized representation of a fluvial sequence in the upper part of the Gassum Formation in northern Denmark. Two ensemble realizations of process-based and...journal article 2023
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MR. SERRAO SEABRA, G.S.S. (author), de Hoop, S. (author), Voskov, D.V. (author), Vossepoel, F.C. (author)Naturally fractured reservoirs can pose challenges for energy operations such as hydrocarbon production, CO2 storage, and geothermal energy production. Fluid flow in these reservoirs is greatly affected by fracture properties such as orientation and aperture, whose magnitude is mainly influenced by the stresses on the reservoir rocks. Simulating...conference paper 2022