Quantification of the viscoelastic effects during polymer flooding: a critical review

MS Azad, JJ Trivedi - SPE Journal, 2019 - onepetro.org
Since the late 1960s, several enhanced–oil–recovery (EOR) researchers have developed
various continuum and pore–scale viscoelastic models for quantifying the altered injectivity …

Proper use of capillary number in chemical flooding

H Guo, M Dou, W Hanqing, F Wang… - Journal of …, 2017 - Wiley Online Library
Capillary number theory is very important for chemical flooding enhanced oil recovery. The
difference between microscopic capillary number and the microscopic one is easy to …

Low-salinity surfactant flooding—a multimechanistic enhanced-oil-recovery method

S Tavassoli, AK Korrani, GA Pope, K Sepehrnoori - Spe Journal, 2016 - onepetro.org
We have applied UTCHEM-IPhreeqc to investigate low-salinity (LS) waterflooding and LS
surfactant (LSS) flooding. Numerical-simulation results were compared with laboratory …

Capillary desaturation tendency of hybrid engineered water-based chemical enhanced oil recovery methods

M Shakeel, A Samanova, P Pourafshary, MR Hashmet - Energies, 2021 - mdpi.com
Several studies have shown the synergetic benefits of combining various chemical
enhanced oil recovery (CEOR) methods with engineered waterflooding (EWF) in both …

Optimization of gravity-stable surfactant flooding

J Lu, GA Pope - SPE Journal, 2017 - onepetro.org
Horizontal surfactant floods are inherently unstable without mobility control. However, a
vertical surfactant flood can be stabilized by gravity if the velocity is below the critical …

A mechanistic integrated geochemical and chemical-flooding tool for alkaline/surfactant/polymer floods

AK Korrani, K Sepehrnoori, M Delshad - SPE Journal, 2016 - onepetro.org
Mechanistic simulation of alkaline/surfactant/polymer (ASP) flooding considers chemical
reactions between the alkali and the oil to form in-situ soap and reactions between the alkali …

Polymer-free viscoelastic fluid for improved oil recovery

C Chen, S Wang, JH Harwell, BJ Shiau - Fuel, 2021 - Elsevier
It has been observed that alkylpropoxy sulfates, sometimes called extended surfactants,
exhibit an oil-induced viscoelastic behavior. This unique behavior occurs within the Winsor …

New insights into surfactant adsorption estimation in carbonates under harsh conditions using surface complexation modeling

I Khurshid, EW Al-Shalabi, I Afgan - SPE Reservoir Evaluation & …, 2022 - onepetro.org
Several laboratory experiments demonstrated that the use of sodium hydroxide could
increase the solution pH and reduce the adsorption of anionic surfactants. However, a better …

[HTML][HTML] Lessons learned from coreflood experiments with surfactant-polymer and alkali-surfactant-polymer for enhanced oil recovery

I Kurnia, M Fatchurrozi, RG Anwary, G Zhang - Petroleum, 2023 - Elsevier
A review of coreflood experiments for chemically enhanced oil recovery (EOR) is presented
in this paper, particularly surfactant-polymer (SP) and alkali-surfactant-polymer (ASP) …

New Insights Into Surfactant Adsorption Estimation During ASP Flooding in Carbonates Under Harsh Conditions Using Surface Complexation Modeling

I Khurshid, EW Al-Shalabi, I Afgan - Abu Dhabi International Petroleum …, 2021 - onepetro.org
Several laboratory experiments demonstrated that the use of sodium hydroxide could
increase the solution pH and reduce the adsorption of anionic surfactants. However, a better …