A unified model for gas transfer in nanopores of shale-gas reservoirs: coupling pore diffusion and surface diffusion

K Wu, X Li, C Guo, C Wang, Z Chen - Spe Journal, 2016 - onepetro.org
A model for gas transfer in nanopores is the basis for accurate numerical simulation, which
has important implications for economic development of shale-gas reservoirs (SGRs). The …

Multiscale modeling of gas transport in shale matrix: an integrated study of molecular dynamics and rigid-pore-network model

S Wang, Q Feng, F Javadpour, M Zha, R Cui - Spe Journal, 2020 - onepetro.org
The physics of gas transport through shale systems remains ambiguous. Although several
theoretical and experimental studies have been reported, most concentrate only on the …

Enhanced oil recovery in the wolfcamp shale by carbon dioxide or nitrogen injection: An experimental investigation

FD Tovar, MA Barrufet, DS Schechter - SPE Journal, 2021 - onepetro.org
We present a comprehensive investigation of gas injection for enhanced oil recovery (EOR)
in organic-rich shale using 11 coreflooding experiments in sidewall core plugs from the …

[HTML][HTML] Pore throat structure heterogeneity and its effect on gas-phase seepage capacity in tight sandstone reservoirs: A case study from the Triassic Yanchang …

YB Yang, WL Xiao, LL Zheng, QH Lei, CZ Qin, YA He… - Petroleum Science, 2023 - Elsevier
The microscopic heterogeneity of pore-throat structures in tight sandstone is a crucial
parameter for understanding the transport mechanism of fluid flow. In this work, we firstly …

A review of biophysical and socio-economic effects of unconventional oil and gas extraction–Implications for South Africa

S Esterhuyse, M Avenant, N Redelinghuys… - Journal of environmental …, 2016 - Elsevier
The impacts associated with unconventional oil and gas (UOG) extraction will be cumulative
in nature and will most likely occur on a regional scale, highlighting the importance of using …

Multiscale pressure/volume/temperature simulation of decreasing condensate/gas ratio at greater than dewpoint pressure in shale gas-condensate reservoirs

S Luo, F Chen, D Zhou, H Nasrabadi - SPE Journal, 2021 - onepetro.org
In shale gas-condensate reservoirs, when the initial reservoir pressure is greater than the
dewpoint pressure, the condensate/gas ratio (CGR) has been observed to decrease …

Estimation of pore structure and permeability in tight carbonate reservoir based on machine learning (ML) algorithm using SEM images of Jaisalmer sub-basin, India

P Yalamanchi, S Datta Gupta - Scientific Reports, 2024 - nature.com
Analyzing the pore structure in carbonate reservoirs plays a crucial role in predicting fluid
flow characteristics within these formations. The goal of the study was to use machine …

Characterization and measurement of multiscale gas transport in shale-core samples

KR Alnoaimi, C Duchateau, AR Kovscek - SPE Journal, 2016 - onepetro.org
This work introduces an experimental technique to probe simultaneously flow and diffusion
of gas through shale. A core-scale pressure-pulse-decay experiment is used to study the …

Phase behavior in shale organic/inorganic nanopores from molecular simulation

B Jin, H Nasrabadi - SPE Reservoir Evaluation & Engineering, 2018 - onepetro.org
Production from shale reservoirs is receiving more attention from the petroleum industry.
However, there are many complexities associated with optimal production of shale …

A rigorous solution to the problem of phase behavior in unconventional formations with high capillary pressure

SS Neshat, R Okuno, GA Pope - SPE Journal, 2018 - onepetro.org
Phase behavior of hydrocarbon mixtures is affected by the petrophysical properties of the
formation. This paper integrates several important thermodynamic and petrophysical …