Projection-based embedded discrete fracture model (pEDFM) for flow and heat transfer in real-field geological formations with hexahedral corner-point grids

HosseiniMehr, Mousa; Tomala, Janio Piguave; Vuik, C.; Kobaisi, Mohammed Al; Hajibeygi, Hadi

doi:10.1016/j.advwatres.2021.104091

Cited by 29 publications

(4 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This test case is designed to evaluate the reliability of the extension of compositional framework to cornerpoint grids by comparing the simulation results on Cartesian grids and converted corner-point grids. The geometry information of corner-point grids is generated based on the open-source simulator MRST (Ding et al, 1995;Lie et al, 2019;HosseiniMehr et al, 2022).…”

Section: Validation Of Corner-point Grids Implementationmentioning

confidence: 99%

An Efficient Simulation Approach for Long-term Assessment of CO2 Storage in Complex Geological Formations

Wang

Vuik

Hajibeygi

2023

Day 2 Wed, January 25, 2023

Self Cite

View full text Add to dashboard Cite

We present an efficient compositional framework for simulation of CO2 storage in saline aquifers with complex geological geometries during a lifelong injection and migration process. To improve the computation efficiency, the general framework considers the essential hydrodynamic physics, including hysteresis, dissolution and capillarity, by means of parameterized space. The parameterization method translates physical models into parameterized spaces during an offline stage before simulation starts. Among them, the hysteresis behavior of constitutive relations is captured by the surfaces created from bounding and scanning curves, on which relative permeability and capillarity pressure are determined directly with a pair of saturation and turning point values. The new development also allows for simulation of realistic reservoir models with complex geological features. The numerical framework is validated by comparing simulation results obtained from the Cartesian-box and the converted corner-point grids of the same geometry, and it is applied to a field-scale reservoir eventually. For the benchmark problem, the CO2 is injected into a layered formation. Key processes such as accumulation of CO2 under capillarity barriers, gas breakthrough and dissolution, are well captured and agree with the results reported in literature. The roles of various physical effects and their interactions in CO2 trapping are investigated in a realistic reservoir model using the corner-point grid. It is found that dissolution of CO2 in brine occurs when CO2 and brine are in contact. The effect of residual saturation and hysteresis behavior can be captured by the proposed scanning curve surface in a robust way. The existence of capillarity causes less sharp CO2-brine interfaces by enhancing the imbibition of the brine behind the CO2 plume, which also increases the residual trapping. Moreover, the time-dependent characteristics of the trapping amount reveals the different time scales on which various trapping mechanisms (dissolution and residual) operate and the interplay. The novelty of the development is that essential physics for CO2 trapping are considered by the means of parameterized space. As it is implemented on corner-point grid geometries, it casts a promising approach to predict the migration of CO2 plume, and to assess the amount of CO2 trapped by different trapping mechanisms in realistic field-scale reservoirs.

show abstract

Section: Validation Of Corner-point Grids Implementationmentioning

confidence: 99%

An Efficient Simulation Approach for Long-term Assessment of CO2 Storage in Complex Geological Formations

Wang

Vuik

Hajibeygi

2023

Day 2 Wed, January 25, 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this way, the classical connections are removed. We refer to the recent literature for more details about the pEDFM on complex grids [37] and compositional physics [38].…”

Section: Adm Strategymentioning

confidence: 99%

A Generic Framework for Multiscale Simulation of High and Low Enthalpy Fractured Geothermal Reservoirs under Varying Thermodynamic Conditions

et al. 2023

Self Cite

View full text Add to dashboard Cite

We develop a multiscale simulation strategy, namely, algebraic dynamic multilevel (ADM) method, for simulation of fluid flow and heat transfer in fractured geothermal reservoirs under varying thermodynamic conditions. Fractures with varying conductivities are modeled using the projection-based embedded discrete fracture model (pEDFM) in an explicit manner. The developed ADM method allows the fine-scale system to be mapped to a discrete domain with an adaptive grid resolution via the use of the restriction and prolongation operators. The developed framework is used a) to investigate the impacts of formulations with different primary variables on the simulation results, and b) to assess the performance of ADM in a high-enthalpy reservoir by comparing the simulation results against those obtained from fine-scale grids. Results show that the two formulations produce similar results in the case of single-phase flow, which indicates that the molar formulation is a favorable option that can be applied to varying thermodynamic conditions. Moreover, the ADM can provide accurate solutions with only a fraction of fine-scale grids, e.g., for the studied case, the maximum error is by average 1.3 with only 42% of active cells, thereby improving the computational efficiency. This is promising for applying the developed method to field-scale geothermal systems.

show abstract

“…In this study, we develop such an accurate modeling technique. To this end, a two-phase, three-component reservoir simulator was developed, which incorporates essential physics based on the fully-coupled multiphysics framework of the multiscale DARSim simulator [37]. Fluid properties were calculated using the GERG-2008 EoS with optimized parameters based on experimental data from literature.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of the impact of different cushion gases on underground hydrogen storage in aquifers based on an experimentally-benchmarked equation-of-state

Zhao,

Wang,

Chen

2024

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Projection-based embedded discrete fracture model (pEDFM) for flow and heat transfer in real-field geological formations with hexahedral corner-point grids

Cited by 29 publications

References 42 publications

An Efficient Simulation Approach for Long-term Assessment of CO2 Storage in Complex Geological Formations

An Efficient Simulation Approach for Long-term Assessment of CO2 Storage in Complex Geological Formations

A Generic Framework for Multiscale Simulation of High and Low Enthalpy Fractured Geothermal Reservoirs under Varying Thermodynamic Conditions

Numerical simulation of the impact of different cushion gases on underground hydrogen storage in aquifers based on an experimentally-benchmarked equation-of-state

Contact Info

Product

Resources

About