Micro and nanobubbles technologies as a new horizon for CO2-EOR and CO2 geological storage techniques: A review

Li, Xiaofeng; Peng, Bo; Liu, Qi; Liu, Jianwei; Shang, Leiwang

doi:10.1016/j.fuel.2023.127661

Cited by 35 publications

(5 citation statements)

References 156 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, the gray weighted correlation is calculated between each actual sample and the optimal solution. The greater the correlation, the closer it is to the optimal solution, and the greater the impact of this factor on target parameters. − The specific calculation steps are as follows: The two evaluation indicators of cumulative oil production and CO 2 storage x (1), x (2), X 0 = [ x 0 (ω),ω = 1,2,, y ] are set as the reference sequence of the data, and the influencing factor X i = [ x i (ω), ω = 1, 2,···, y ; i = 1, 2,···, j ] as the comparative sequence of the data. y represents the length of the sequence, and j represents the number of influencing factors. ξ i ( k ) is the correlation coefficient between the comparative sequence x i and the reference sequence x 0 on the k -th indicator, where ρ∈[0,1] is the resolution coefficient.…”

Section: Discussionmentioning

confidence: 99%

Experimental and Numerical Simulation Analysis of Factors Affecting CO₂ Geological Storage and Enhanced Oil Recovery in Extra-Low Permeability

Liu,

Shen,

Yue

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

Carbon neutrality has become the long-term development strategy of many countries worldwide, and the widespread implementation of CCUS (carbon capture, utilization, and storage) is critical for achieving this goal. Ultralow permeability reservoirs have good storage and shielding properties, making them ideal for CO2 geological storage. CO2 into these reservoirs has the dual purpose of improving crude oil recovery and protecting the environment. However, the physical properties of ultralow permeability reservoirs are poor. Furthermore, the distribution of fractures is often complex. The mechanism and influencing factors of the CO2 storage are still unclear. Here, the CO2 storage in ultralow permeability reservoirs is analyzed through core displacement experiments and numerical simulation. The main influencing factors of cumulative oil production and CO2 storage capacity were calculated through gray correlation theory, including CO2 injection rate, permeability, porosity, the solubility of CO2 in water, and the bottom hole flow pressure of production wells. The research results show that the geological storage of CO2 in ultralow permeability reservoirs mainly consists of structural trapping and dissolution into the residual fluids; in the short term, mineralization is relatively small and can be ignored. Within the 15 years predicted by numerical simulation, the injected CO2 into the Y28–102 well group in the Huang3 district was structurally trapped, with a total capacity of 6.59 × 104t. The burial ratio was 63.4%, of which structural burial accounted for 82%, oil dissolution accounted for 9%, water dissolution accounted for 8%, and mineral burial accounted for approximately 1%. The research results reference CO2 flooding and geological storage in ultralow permeability reservoirs.

show abstract

Section: Discussionmentioning

confidence: 99%

Experimental and Numerical Simulation Analysis of Factors Affecting CO₂ Geological Storage and Enhanced Oil Recovery in Extra-Low Permeability

Liu,

Shen,

Yue

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…The world’s economy still strongly relies on existing oil resources, and efficient recovery is the subject of academic and engineering research activities, as indicated by recent reviews. − In many reservoirs, a significant amount of crude oil remains after water flooding, which can be exploited during enhanced oil recovery (EOR) including processes using various chemicals such as polymers, , surfactants, , or other substances. , Besides chemical-based EOR, various physical methods such as gas injection or heat treatment have also proven to be successful in the tertiary recovery of oil residuals.…”

Section: Introductionmentioning

confidence: 99%

Ion-Specific Effects on the Structure, Size, and Charge of Polymers Applied in Enhanced Oil Recovery

Vargáné Árok,

Sáringer,

Papp

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

Polymers are widely applied in enhanced oil recovery (EOR) utilizing the increased viscosity to sweep oil residuals from reservoirs, and thus, various types of polymers are available in the market. The salinity of the oil reservoirs is a key question in EOR processes since the chemical composition and concentration of salts in the underground water highly affect the viscoelastic properties of the EOR polymers. Here, four types of commercially available polymers containing AAM, AAC, and AMPS and hydrophilic monomers were studied, considering rheology, size, and charge features in aqueous solutions. The salinity-dependent coherent−incoherent (gel−sol) structural transitions were characterized by the transition salt concentration (TSC) values, which were sensitive to the valence of the counterions in the systems. The TSC data were also dependent on the rheology setup (rotational or oscillation), indicating the importance of the flow conditions in the oil reservoirs. The obtained data revealed that kosmotrope ions such as Ca 2+ are efficient in stabilizing the sol, i.e., macromolecular solution, state in contrast to chaotrope ions like Na + , whose presence led to higher TSC values. Other polymer−counterion interactions such as ion binding and charge screening also play crucial roles in the structure formation, size, and charge features of the polymers. The reported data are important to choose polymer solutions for EOR applications in reservoirs of different salinities.

show abstract

“…They can be categorized as surface NBs, i.e., generated at solid–liquid interfaces, or bulk NBs, i.e., formed in bulk liquids 4 , 5 . Nanobubbles have many applications 6 from wastewater treatment, ecosystem restoration, surface cleaning, oxygenation in agriculture and in aquaculture to disinfection, and medicine, including industrial applications 7 that could be used in the current decarbonization efforts 8 and the transition of our modern societies towards low-carbon electric economies. Nanobubbles are commonly generated by cavitation, which occurs when pressure falls below a particular threshold value, typically via acoustic, optical, particle, or hydrodynamic pressure reduction techniques 9 – 16 .…”

Section: Introductionmentioning

confidence: 99%

Effect of chemical species and temperature on the stability of air nanobubbles

Montazeri,

Kalogerakis,

Kolliopoulos

2023

Sci Rep

View full text Add to dashboard Cite

The colloidal stability of air nanobubbles (NBs) was studied at different temperatures (0–30 °C) and in the presence of sulfates, typically found in mining effluents, in a wide range of Na2SO4 concentrations (0.001 to 1 M), along with the effect of surfactants (sodium dodecyl sulfate), chloride salts (NaCl), and acid/base reagents at a pH range from 4 to 9. Using a nanobubble generator based on hydrodynamic cavitation, 1.2 × 108 bubbles/mL with a typical radius of 84.66 ± 7.88 nm were generated in deionized water. Multiple evidence is provided to prove their presence in suspension, including the Tyndall effect, dynamic light scattering, and nanoparticle size analysis. Zeta potential measurements revealed that NBs are negatively charged even after two months (from − 19.48 ± 1.89 to − 10.13 ± 1.71 mV), suggesting that their stability is due to the negative charge on their surface. NBs were found to be more stable in alkaline solutions compared to acidic ones. Further, low amounts of both chloride and sulfate dissolved salts led to a reduction of the size of NBs. However, when high amounts of dissolved salts are present, NBs are more likely to coalesce, and their size to be increased. Finally, the investigation of the stability of air NBs at low temperatures revealed a non-monotonic relationship between temperature and NBs upon considering water self-ionization and ion mobility. This research aims to open a new frontier towards the application of the highly innovative NBs technology on the treatment of mining, mineral, and metal processing effluents, which are challenging aqueous solutions containing chloride and sulfate species.

show abstract

Micro and nanobubbles technologies as a new horizon for CO2-EOR and CO2 geological storage techniques: A review

Cited by 35 publications

References 156 publications

Experimental and Numerical Simulation Analysis of Factors Affecting CO₂ Geological Storage and Enhanced Oil Recovery in Extra-Low Permeability

Experimental and Numerical Simulation Analysis of Factors Affecting CO₂ Geological Storage and Enhanced Oil Recovery in Extra-Low Permeability

Ion-Specific Effects on the Structure, Size, and Charge of Polymers Applied in Enhanced Oil Recovery

Effect of chemical species and temperature on the stability of air nanobubbles

Contact Info

Product

Resources

About

Micro and nanobubbles technologies as a new horizon for CO2-EOR and CO2 geological storage techniques: A review

Cited by 35 publications

References 156 publications

Experimental and Numerical Simulation Analysis of Factors Affecting CO2 Geological Storage and Enhanced Oil Recovery in Extra-Low Permeability

Experimental and Numerical Simulation Analysis of Factors Affecting CO2 Geological Storage and Enhanced Oil Recovery in Extra-Low Permeability

Ion-Specific Effects on the Structure, Size, and Charge of Polymers Applied in Enhanced Oil Recovery

Effect of chemical species and temperature on the stability of air nanobubbles

Contact Info

Product

Resources

About

Experimental and Numerical Simulation Analysis of Factors Affecting CO₂ Geological Storage and Enhanced Oil Recovery in Extra-Low Permeability

Experimental and Numerical Simulation Analysis of Factors Affecting CO₂ Geological Storage and Enhanced Oil Recovery in Extra-Low Permeability