Experimental evaluation of Carbon Dioxide-Assisted Gravity Drainage process (CO2-AGD) to improve oil recovery in reservoirs with strong water drive

DA Al-Obaidi, WJ Al-Mudhafar, MS Al-Jawad - Fuel, 2022 - Elsevier
Abstract The Gas-Assisted Gravity Drainage (GAGD) process has been developed to
improve and enhance oil production in both secondary and tertiary recovery stages. In the …

Numerical analysis of pore-scale CO2-EOR at near-miscible flow condition to perceive the displacement mechanism

P Behnoud, MR Khorsand Movaghar, E Sabooniha - Scientific Reports, 2023 - nature.com
Gas flooding through the injection of CO 2 is generally performed to achieve optimum oil
recovery from underground hydrocarbon reservoirs. However, miscible flooding, which is the …

[HTML][HTML] Reservoir heterogeneity controls of CO2-EOR and storage potentials in residual oil zones: Insights from numerical simulations

YY Wang, XG Wang, RC Dong, WC Teng, SY Zhan… - Petroleum Science, 2023 - Elsevier
Residual oil zones (ROZs) have large potential for CO 2 enhanced oil recovery (EOR) and
geologic storage. During CO 2 injection, the migration of CO 2 in ROZs controls the …

From coreflooding and scaled physical model experiments to field-scale enhanced oil recovery evaluations: Comprehensive review of the gas-assisted gravity …

WJ Al-Mudhafar - Energy & Fuels, 2018 - ACS Publications
The gas-assisted gravity drainage (GAGD) process has been suggested to improve oil
recovery in both secondary and tertiary stages through immiscible and miscible injection …

The impact of permeability heterogeneity on water-alternating-gas displacement in highly stratified heterogeneous reservoirs

MY Khan, A Mandal - Journal of Petroleum Exploration and Production …, 2022 - Springer
Availability of gases at the field level makes attractive to water-alternating-gas (WAG)
process for low viscosity and light oils carbonate reservoir. However, impact of reservoir …

Oil production performance and reservoir damage distribution of miscible CO2 soaking-alternating-gas (CO2-SAG) flooding in low permeability heterogeneous …

Q Wang, J Shen, P Lorinczi, P Glover, S Yang… - Journal of Petroleum …, 2021 - Elsevier
Miscible CO 2-SAG flooding is an enhanced form of CO 2 flooding, which mitigates the
inadequate CO 2-crude oil interaction by adding a CO 2 soaking period just after CO 2 …

Effect of interlayer heterogeneity on multi-seam coalbed methane production: A numerical study using a gray lattice Boltzmann model

Y Zhao, Z Wang - Journal of Petroleum Science and Engineering, 2019 - Elsevier
Multi-seam or multi-zone commingled production of coalbed methane (CBM) in a single
wellbore would substantially increase the cumulative gas production. In general, CBM …

Development and Simulation of the Gas-Downhole Water Sink-Assisted Gravity Drainage (GDWS-AGD) Process to Reduce Carbon Footprint and Improve Clean Oil …

WJ Al-Mudhafar, DA Wood - Journal of Cleaner Production, 2024 - Elsevier
Implementing continuous gas injection into oil reservoirs, surrounded by strong water drives,
enhances oil production. Nevertheless, water coning/cresting in these reservoirs leads to …

Microbe-induced fluid viscosity variation: field-scale simulation, sensitivity and geological uncertainty

EO Ansah, H Vo Thanh, Y Sugai, R Nguele… - Journal of Petroleum …, 2020 - Springer
This study is intended to expand the scope of microbial enhanced oil recovery (MEOR)
simulation studies from 1D to field scale focussing on fluid viscosity variation and …

Performance demonstration of gas-assisted gravity drainage in a heterogeneous reservoir using a 3D scaled model

D Kong, P Lian, R Zheng, Y Li - RSC advances, 2021 - pubs.rsc.org
Gas-assisted gravity drainage (GAGD) is an effective method for oil recovery. Gravity
increases the stability of the Gas–Oil Contact (GOC), thus delaying gas breakthrough and …