Recent advances on microscopic pore characteristics of low permeability sandstone reservoirs

S Huang, Y Wu, X Meng, L Liu, W Ji - Advances in Geo-Energy …, 2018 - sciopen.com
Understanding oil and gas production from low-permeability sandstones requires an
understanding of the porosity. This paper reviews the analysis of data from hundreds of …

Stress sensitivity of fractured and vuggy carbonate: an X‐Ray computed tomography analysis

Y Yang, L Tao, H Yang, S Iglauer… - Journal of …, 2020 - Wiley Online Library
Fractures, vugs, and pores constitute the main pore space in carbonate reservoirs. The
associated pore structure—which is of key importance in terms of hydrocarbon production …

A comprehensive pore structure study of the Bakken Shale with SANS, N2 adsorption and mercury intrusion

K Liu, M Ostadhassan, L Sun, J Zou, Y Yuan, T Gentzis… - Fuel, 2019 - Elsevier
Small angle neutron scattering (SANS) analysis was performed on six Bakken Shale
samples with different maturities to reveal the complexities in the pore structure. Pore size …

Microscopic determination of remaining oil distribution in sandstones with different permeability scales using computed tomography scanning

Y Yang, H Yang, L Tao, J Yao… - Journal of …, 2019 - asmedigitalcollection.asme.org
To investigate the characteristics of oil distribution in porous media systems during a high
water cut stage, sandstones with different permeability scales of 53.63× 10− 3 μ m2 and …

Experimental study on the permeability variation of sandstone at cyclic stress: Implication for underground gas storage

J Zhou, G Deng, S Tian, X Xian, K Yang, C Zhang… - Journal of Energy …, 2023 - Elsevier
Underground gas storage (UGS) of CH 4 and H 2 is an economical and reliable solution for
large-scale energy storage. Cyclic gas injection-withdrawal of UGS can induce periodical …

Comparison of fractal models using NMR and CT analysis in low permeability sandstones

K Zhang, J Lai, G Bai, X Pang, X Ma, Z Qin… - Marine and Petroleum …, 2020 - Elsevier
Fractal geometry provides an effective method for characterization of the complex and
irregular pore structure of Eocene Shahejie low permeability sandstones in the Raoyang …

Experimental study on stress-dependent multiphase flow in ultra-low permeability sandstone during CO2 flooding based on LF-NMR

T Zhang, T Ming, L Yuan, G Zhu, C Zhang, Y Liu, Y Li… - Energy, 2023 - Elsevier
Oil production performance in the unconventional reservoirs is significantly affected by the
flooding agent and occurrence environment. In this study, the in-situ stress and …

Formation damage prevention using microemulsion in tight sandstone gas reservoir

B Dong, M Meng, Z Qiu, Z Lu, Y Zhang… - Journal of Petroleum …, 2019 - Elsevier
Formation damage is an inevitable problem during drilling in the sandstone gas reservoir.
The invasion of drilling fluid could cause the decreasing of permeability of the formation and …

The characteristics and influencing factors of permeability stress sensitivity of tight sandstone reservoirs

X Zhong, Y Zhu, L Liu, H Yang, Y Li, Y Xie… - Journal of Petroleum …, 2020 - Elsevier
The permeability decrease caused by the increase in effective stress notably influences the
development of tight sandstone reservoirs. Therefore, it is necessary to study permeability …

Variations in surface fractal characteristics of coal subjected to liquid CO2 phase change fracturing

X Liu, Z Wang, D Song, X He… - International Journal of …, 2020 - Wiley Online Library
Enhancement of coal permeability plays the key role in methane extraction underground
coalmine. As the physical blasting method, liquid CO2 phase change fracturing (LCPCF) …