Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Excess Pressure Inside a Drop and a Bubble01:13

Excess Pressure Inside a Drop and a Bubble

1.8K
The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.
1.8K
Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

1.0K
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
1.0K
Pore Size Distribution01:23

Pore Size Distribution

185
In concrete, the pore size distribution significantly influences the material's properties. Capillary pores, markedly larger than gel pores, form a vast network within partially hydrated cement paste, reducing the concrete's strength and increasing its permeability. This heightened permeability leads to a greater risk of damage from environmental factors like freeze-thaw cycles and chemical attacks, with the extent of vulnerability also being tied to the water-to-cement ratio.
Adequate...
185
Carbonation Shrinkage01:24

Carbonation Shrinkage

182
Atmospheric CO2 penetrates the concrete's pores and, in the presence of moisture, forms carbonic acid, which then reacts with calcium hydroxide in the hydrated cement, forming calcium carbonate. This process reduces the concrete's volume and is termed carbonation shrinkage.
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction...
182
Couette Flow01:22

Couette Flow

373
Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
373
Porosity in Cement Paste01:18

Porosity in Cement Paste

198
The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
The balance of water to cement in the mix is...
198

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Two-year-supervised resistance training prevented diabetes incidence in people with prediabetes: A randomised control trial.

Diabetes/metabolism research and reviews·2019
Same author

Preliminary evaluation of a predictive controller for a rotary blood pump based on pulmonary oxygen gas exchange.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine·2019
Same author

A Destructive New Disease of Citrus in China Caused by Cryptosporiopsis citricarpa sp. nov.

Plant disease·2019
Same author

Effects of membrane reference state on shape memory of a red blood cell.

Computer methods in biomechanics and biomedical engineering·2019
Same author

Ultrafast Photovoltaic-Type Deep Ultraviolet Photodetectors Using Hybrid Zero-/Two-Dimensional Heterojunctions.

ACS applied materials & interfaces·2019
Same author

Phenolic profile and antioxidant properties of sand rice (Agriophyllum squarrosum) as affected by cooking and in vitro digestion.

Journal of the science of food and agriculture·2019
Same journal

Hydride-mediated direct synthesis of aniline from dinitrogen and benzene.

Science bulletin·2026
Same journal

A 44-min periodic radio transient in a supernova remnant.

Science bulletin·2026
Same journal

Lipoprotein(a): a therapeutic target in waiting? Evidently, evidence-based.

Science bulletin·2026
Same journal

Theoretical prediction of semiconductors by data driven light-element substitution in topological materials.

Science bulletin·2026
Same journal

High-performance quantum interconnect between bosonic modules beyond transmission loss constraints.

Science bulletin·2026
Same journal

Polymer-regulated crystallization enables scalable, high-performance heterostructured perovskite luminescent optoelectronic fibers.

Science bulletin·2026
See all related articles

Related Experiment Video

Updated: Aug 13, 2025

Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography
08:02

Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography

Published on: February 25, 2015

12.6K

Pore-scale visualization on a depressurization-induced CO2 exsolution.

Ruina Xu1, Rong Li1, Feng Huang1

  • 1Key Laboratory for CO(2) Utilization and Reduction Technology of Beijing, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China.

Science Bulletin
|January 20, 2023
PubMed
Summary
This summary is machine-generated.

During CO2 geological storage, depressurization causes CO2 exsolution. Lower temperatures and faster rates increase bubble formation, impacting CO2 migration and trapping.

Keywords:
CO(2) exsolutionCO(2) geological storageDepressurization processOstwald ripening

More Related Videos

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography
10:18

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

Published on: February 21, 2017

8.6K
Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications
08:38

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications

Published on: January 16, 2018

10.5K

Related Experiment Videos

Last Updated: Aug 13, 2025

Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography
08:02

Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography

Published on: February 25, 2015

12.6K
Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography
10:18

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

Published on: February 21, 2017

8.6K
Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications
08:38

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications

Published on: January 16, 2018

10.5K

Area of Science:

  • Geological Engineering
  • Geochemistry
  • Fluid Dynamics

Background:

  • CO2 geological storage is crucial for climate change mitigation.
  • Understanding CO2 phase behavior during depressurization is vital for storage integrity.
  • Exsolution of CO2 can significantly influence CO2 migration and fate within reservoirs.

Purpose of the Study:

  • To investigate the pore-scale behavior of exsolved CO2 during depressurization in geological storage.
  • To visualize the nucleation, growth, and coalescence of CO2 bubbles under varying pressure conditions.
  • To elucidate the mechanisms governing exsolved CO2 phase evolution and its implications for storage security.

Main Methods:

  • Utilized a micromodel experimental system with homogeneous porous media to simulate reservoir conditions.
  • Dynamically visualized CO2 bubble nucleation and growth under significant pressure variations (9.85 to 3.95 MPa).
  • Recorded CO2 bubble behavior at different temperatures and depressurization rates.

Main Results:

  • CO2 nuclei became observable at reduced CO2 phase density, slightly below severe expansion pressures.
  • Lower temperatures and faster depressurization rates led to increased CO2 nuclei formation.
  • Exsolved CO2 bubbles preferentially grew in pore bodies over throats.
  • Observed bubble coalescence, confirming the Ostwald ripening mechanism.
  • Dispersed exsolved CO2 exhibited characteristics similar to residually trapped CO2.

Conclusions:

  • Exsolved CO2 behavior, including nucleation, growth, and coalescence, is significantly influenced by depressurization rates and temperature.
  • The Ostwald ripening mechanism plays a role in the evolution of exsolved CO2.
  • The observed similarity between exsolved and residually trapped CO2 suggests a self-sealing mechanism, enhancing storage security during depressurization.