Effectiveness of supercritical-CO2 and N2 huff-and-puff methods of enhanced oil recovery in shale fracture networks using microfluidic experiments

P Nguyen, JW Carey, HS Viswanathan, M Porter - Applied energy, 2018 - Elsevier
Current oil recovery methods in hydraulically fractured shale reservoirs have a low recovery
efficiency of about 10%. The objective of this work is to investigate the effectiveness of …

Experimental evaluation of enhanced oil recovery in unconventional reservoirs using cyclic hydrocarbon gas injection

M Akbarabadi, AH Alizadeh, M Piri, N Nagarajan - Fuel, 2023 - Elsevier
The significant amount of gas produced from unconventional reservoirs in the US in recent
years has reduced market prices for hydrocarbon gas and created an opportunity for using …

Novel laboratory investigation of huff-n-puff gas injection for shale oils under realistic reservoir conditions

P Mahzari, TM Mitchell, AP Jones, EH Oelkers… - Fuel, 2021 - Elsevier
Enhanced oil recovery (EOR) from shale oil formations is recognized as the next frontier in
the exploitation of unconventional resources. Current approaches for performing EOR …

Huff-n-puff gas injection performance in shale reservoirs: A case study from Duvernay Shale in Alberta, Canada

H Hamdi, CR Clarkson, A Ghanizadeh… - … , Houston, Texas, 23 …, 2018 - library.seg.org
Hydraulic fracturing in tight and shale reservoirs is a revolutionary technology enabling
economically-viable production. Nevertheless, oil recovery factors achieved from primary …

Experimental investigation of enhanced oil recovery and in-situ upgrading of heavy oil via CO2-and N2-assisted supercritical water flooding

Z Huang, Q Zhao, L Chen, L Guo, Y Miao… - Chemical Engineering …, 2023 - Elsevier
Exploitation of heavy oil is critical for mitigating the energy crisis. However, conventional
thermal recovery methods cannot completely exploit the potential of heavy oil owing to its …

Experimental Investigation on Microscopic Residual Oil Distribution During CO2 Huff-and-Puff Process in Tight Oil Reservoirs

K Qian, S Yang, H Dou, Q Wang, L Wang, Y Huang - Energies, 2018 - mdpi.com
The determination of microscopic residual oil distribution is beneficial for exploiting
reservoirs to their maximum potential. In order to investigate microscopic residual oil during …

[HTML][HTML] Mechanism of CO2 enhanced oil recovery in shale reservoirs

HB Li, ZM Yang, RS Li, TY Zhou, HK Guo, XW Liu… - Petroleum Science, 2021 - Elsevier
Combined with NMR, core experiment, slim-tube tests, nano-CT and oil composition
analysis, the mechanism of CO 2 enhanced oil recovery had been studied. CO 2 flooding …

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 …

Further discuss the roles of soaking time and pressure depletion rate in gas huff-n-puff process in fractured liquid-rich shale reservoirs

Y Yu, L Li, JJ Sheng - SPE Annual Technical Conference and …, 2016 - onepetro.org
Cyclic gas injection (CGI), also known as huff-n-puff process, has been demonstrated as the
most effective and promising IOR solution in shale reservoirs. Such process involves many …

Experimental study of core size effect on CH4 huff-n-puff enhanced oil recovery in liquid-rich shale reservoirs

L Li, JJ Sheng - Journal of Natural Gas Science and Engineering, 2016 - Elsevier
Gas huff-n-puff injection, which avoids the viscous fingering phenomenon or gas channeling
between connected wells, is a potential method to efficiently enhance oil recovery (EOR) in …