Pore-network modeling of flow in shale nanopores: Network structure, flow principles, and computational algorithms

R Cui, SM Hassanizadeh, S Sun - Earth-Science Reviews, 2022 - Elsevier
Hydrocarbons in subsurface nanoporous media, such as shale, are promising energy
resources to compensate for the shortage of conventional reservoirs. Pore-network …

A self-adaptive deep learning algorithm for accelerating multi-component flash calculation

T Zhang, Y Li, Y Li, S Sun, X Gao - Computer Methods in Applied …, 2020 - Elsevier
In this paper, the first self-adaptive deep learning algorithm is proposed in details to
accelerate flash calculations, which can quantitatively predict the total number of phases in …

Accelerating flash calculations in unconventional reservoirs considering capillary pressure using an optimized deep learning algorithm

T Zhang, Y Li, S Sun, H Bai - Journal of Petroleum Science and …, 2020 - Elsevier
An increasing focus was placed in the past few decades on accelerating flash calculations
and a variety of acceleration strategies have been developed to improve its efficiency …

Phase equilibrium, thermodynamics, hydrogen-induced effects and the interplay mechanisms in underground hydrogen storage

X Feng, J Liu, J Shi, P Hu… - Computational Energy …, 2024 - compes.yandypress.com
Global attention has shifted back to hydrogen, the ultimate green alternative energy, due to
the intensifying extreme climate and greenhouse impacts. It is now a promising energy …

Thermodynamic modeling of CO2 solubility in saline water using NVT flash with the cubic-Plus-association equation of state

Y Li, Z Qiao, S Sun, T Zhang - Fluid Phase Equilibria, 2020 - Elsevier
The accurate estimation of CO 2 sequestration potential in deep saline aquifers requires the
knowledge of CO 2 solubility in brine, thus placing importance on reliable thermodynamic …

Acceleration of the NVT Flash Calculation for Multicomponent Mixtures Using Deep Neural Network Models

Y Li, T Zhang, S Sun - Industrial & Engineering Chemistry …, 2019 - ACS Publications
Phase equilibrium calculation, also known as flash calculation, has been extensively
applied in petroleum engineering, not only as a standalone application for a separation …

Darcy-scale phase equilibrium modeling with gravity and capillarity

S Sun - Journal of Computational Physics, 2019 - Elsevier
The modeling of multiphase fluid mixture and its flow in porous media is of great interest in
the field of reservoir simulation. In this paper, we formulate a novel energy-based framework …

A fully explicit and unconditionally energy-stable scheme for Peng-Robinson VT flash calculation based on dynamic modeling

X Feng, MH Chen, Y Wu, S Sun - Journal of Computational Physics, 2022 - Elsevier
Abstract Since the Peng-Robinson (PR) equation of state (EoS) has proven itself to be one
of the most reliable EoS, especially in the chemical and petroleum industries, the flash …

A constrained differential evolution algorithm for calculation of two-phase equilibria at given volume, temperature and moles

Y Zhan, Z Hu, J Kou, N Hong, Q Su - Journal of Computational Physics, 2024 - Elsevier
A variety of strategies including two types of direct solution methods based on Newton's
method and indirect solution methods based on thermodynamic principles have been …

A method for calculating two-phase equilibrium: Constrained gray prediction evolutionary algorithm with a surrogate model based on quadratic interpolation

Y Shen, Z Hu, F Hu, Q Su, J Kou - Physics of Fluids, 2024 - pubs.aip.org
Traditional methods, including direct solution methods based on Newton's method and
indirect solution methods based on thermodynamic principles, are the mainstream methods …