Oil Recovery Enhancement by N₂ Nanobubbles

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Language: Английский

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Optimizing Nanobubble Production in Ceramic Membranes: Effects of Pore Size, Surface Hydrophobicity, and Flow Conditions on Bubble Characteristics and Oxygenation

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Precise control of nanobubble size is essential for optimizing the efficiency and performance applications across diverse fields, such as agriculture, water treatment, medicine. Producing fine bubbles, including nanobubbles, commonly achieved by purging gas through porous media, ceramic or polymer membranes. Many operational factors membrane properties can significantly influence production characteristics. This study examines how pore size, surface hydrophobicity, gas/water flow conditions affect concentration. Findings reveal that reducing from 200 to 10 nm slightly decreased mean diameter 115 89 nm. Furthermore, membranes with a hydrophilic outer hydrophobic generated smaller nanobubbles higher concentrations in water. Additionally, high cross-flow rate (e.g., >1 L·min-1) increased concentration, though bubble remained unaffected. In contrast, had more pronounced effect. Increasing 0.5 12 L·min-1 raised concentration 3.09 × 108 1.24 109 bubbles·mL-1 while 100 79 An interfacial force model was applied analyze detachment at outlet, considering flow/pressure, tension, shear forces flow. These findings offer valuable insights into mechanisms governing generation via injection

Language: Английский

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Stability analysis of CO2 microbubble for CO2 sequestration and mobility control in enhanced oil recovery

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 156595 - 156595

Published: Oct. 13, 2024

Language: Английский

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Experimental Study on CO2 Injection to Enhance Recovery and its Storage Characteristics in Low Permeability Gas Reservoirs

Chemistry and Technology of Fuels and Oils, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Language: Английский

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Oil recovery enhancement by Nanobubbles: Insights from High-Pressure micromodel studies

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 693, P. 137647 - 137647

Published: April 19, 2025

Language: Английский

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Instability and collapse mechanisms of O2 and N2 nanobubble gas–liquid interfaces: A molecular dynamics simulation study

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(12)

Published: Dec. 1, 2024

Nanobubbles, with their stability and oxidative properties, are widely applied in biomedicine, flotation, environmental remediation. While experimental studies have explored application effects, the dynamic behavioral characteristics of gas-containing nanobubbles during collapse remain insufficiently investigated. This study employs molecular dynamics simulation to examine nanobubble under various conditions, including impact velocities, gas types, bubble sizes, densities. Results show that increasing size expands microjet radiation area, while higher velocities increase velocities. Gas types affect jet area due differences van der Waals forces solubility. Vacuum exhibit maximum than nitrogen oxygen nanobubbles. cushioning compression rebound significantly influence velocity. Microjets induce vortex structures, surface changes, local pressure increases, leading secondary water hammer impacts. Simulation results align well theoretical calculations. provides foundation for industrial-scale implementation cavitation technology.

Language: Английский

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Study on CO2 Injection Enhanced Oil Recovery Method and Buried Mechanism in Low Permeability Gas Reservoir

Chemistry and Technology of Fuels and Oils, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 16, 2024

Language: Английский

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