Critical point of fluid confined in nanopores: experimental detection and measurement

SP Tan, X Qiu, M Dejam… - The Journal of Physical …, 2019 - ACS Publications
For the first time, the presence of the critical point (CP) of fluids confined in nanopores is
unambiguously demonstrated and measured using a differential scanning calorimeter with …

Fluid phase behavior in multi-scale shale reservoirs with nano-confinement effect

Y Song, Z Song, Z Chen, L Zhang, Y Zhang, D Feng… - Energy, 2024 - Elsevier
Shale reservoirs are featured by widely distributed micro-scale fractures and nano-scale
pores. The phase behavior of reservoir fluids in these complex environments remains …

Experimental study on the criticality of a methane/ethane mixture confined in nanoporous media

X Qiu, SP Tan, M Dejam, H Adidharma - Langmuir, 2019 - ACS Publications
For the first time, the critical region of a methane/ethane mixture confined in nanoporous
media (SBA-15) is experimentally investigated using differential scanning calorimetry with …

Stability analysis and two-phase flash calculation for confined fluids in nanopores using a novel phase equilibrium calculation framework

JJ Guo, W **ong, QY Hu, Y Tian, X He… - Industrial & …, 2022 - ACS Publications
Despite the advancement in simulation technology, a great challenge for unconventional
resources is relevant to the correct representation of phase equilibria in nanopores and the …

Two-phase flash for tight porous media by minimization of the Helmholtz free energy

SH Achour, R Okuno - Fluid Phase Equilibria, 2021 - Elsevier
Thermodynamic modeling of phase behavior is one of the most fundamental components in
the study of enhanced oil recovery by gas injection. Robust algorithms exist for multiphase …

Phase stability analysis for tight porous media by minimization of the Helmholtz free energy

SH Achour, R Okuno - Fluid Phase Equilibria, 2020 - Elsevier
This paper presents a new method of phase stability analysis in the presence of capillary
pressure by minimization of the Helmholtz free energy. The thermodynamic consistency of …

A new three-phase flash algorithm considering capillary pressure in a confined space

H Sun, HA Li - Chemical Engineering Science, 2019 - Elsevier
Tight/shale reservoirs are extensively containing nanopores, and the confined space in
nanopores can greatly alter the phase behavior of reservoir fluids due to the strong …

Binary fluid mixtures confined in nanoporous media: Experimental evidence of no phase coexistence

X Qiu, SP Tan, M Dejam, H Adidharma - Chemical Engineering Journal, 2021 - Elsevier
The phase behavior of two binary fluid mixtures (CH 4/C 2 H 6, CH 4/CO 2) confined in well-
defined, ordered nanoporous media (SBA-15) has been studied using Differential Scanning …

A single-phase diffusion model for gas injection in tight oil reservoirs

SH Achour, R Okuno - Journal of Petroleum Science and Engineering, 2022 - Elsevier
This paper presents a mechanistic simulation study of one-dimensional multicomponent
diffusion when the miscible injectant diffuses into a tight porous medium through the …

Nanopore confinement and pore connectivity considerations in modeling unconventional resources

A Sanaei, Y Ma, A Jamili - Journal of Energy …, 2019 - asmedigitalcollection.asme.org
Gas and liquid production from nanopore shale resources substantially increased during the
past decade due to the advances in horizontal drilling and multistage hydraulic fracturing …