Interfacial Tension and Contact Angle Data Relevant to Carbon Sequestration

Bikkina, Prem; Shaik, Imran

doi:10.5772/intechopen.79414

Cited by 6 publications

(5 citation statements)

References 71 publications

(198 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The third challenge is the difficulty of avoiding contamination by impurities that can confer surface roughness or modify interfacial energies in the mineral–water–CO 2 system. Efforts to minimize impurities are often inconsistent and a source of discrepancy, particularly at the high temperature and pressure conditions of GCS. , Among studies that used more stringent methods of cleaning, questions arise as to whether the cleaning method altered the surface and whether contamination still occurred. ,,− …”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulations of Mineral Surface Wettability by Water Versus CO₂: Thin Films, Contact Angles, and Capillary Pressure in a Silica Nanopore

Sun

Bourg

2020

J. Phys. Chem. C

View full text Add to dashboard Cite

The wettability of mineral surfaces is an important property influencing multiphase flow in soils and sedimentary rocks. In particular, for CO 2 abatement technologies that rely on trapping supercritical CO 2 in sedimentary formations, the wettability of relevant mineral surfaces by water is a poorly constrained fundamental property influencing stratigraphic and residual trapping. Theoretical studies have noted that adsorbed water films may hold a key to resolving many of the discrepancies in reported wettability data, but the transition from the droplet to the film is difficult to observe experimentally. The link between continuum and nanoscale observations can be elucidated using molecular dynamics (MD) and thermodynamic equations. We simulate water and CO 2 at various pressures between quartz surfaces to probe the thickness of the adsorbed water film observed between the CO 2 and quartz, and the radius of curvature of the fluid−fluid interface as a function of CO 2 pressure. These results are discussed in the context of the relevant interfacial energies and Young's equation and the Gibbs CO 2 surface excesses at various interfaces. We show that the augmented Young−Laplace equation accurately captures the relationship between the observed radius of curvature, the capillary pressure between the bulk fluid phases, and the disjoining pressure in the adsorbed water film. We examine the thermodynamics of thin water films in novel depth and present a new methodology for characterizing circularity approaching a mineral interface and for comparing continuum and nanoscale manifestations of wettability. We find that discrepancies in both the experimental and MD database may be influenced by proximity to solid surfaces and adsorbed wetting films.

show abstract

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulations of Mineral Surface Wettability by Water Versus CO₂: Thin Films, Contact Angles, and Capillary Pressure in a Silica Nanopore

Sun

Bourg

2020

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

“…In the last decade, several scholars have investigated the factors affecting the CO 2 wettability behavior of caprocks [12,[45][46][47]52,98,[102][103][104]. Mineral composition and surface chemistry were found to have significant influences on the structural trapping capacity, besides other factors including organic matter, brine salinity, pressure and temperature.…”

Section: Surface Wettabilitymentioning

confidence: 99%

A Review on the Influence of CO2/Shale Interaction on Shale Properties: Implications of CCS in Shales

et al. 2020

View full text Add to dashboard Cite

Carbon capture and storage (CCS) is a developed technology to minimize CO2 emissions and reduce global climate change. Currently, shale gas formations are considered as a suitable target for CO2 sequestration projects predominantly due to their wide availability. Compared to conventional geological formations including saline aquifers and coal seams, depleted shale formations provide larger storage potential due to the high adsorption capacity of CO2 compared to methane in the shale formation. However, the injected CO2 causes possible geochemical interactions with the shale formation during storage applications and CO2 enhanced shale gas recovery (ESGR) processes. The CO2/shale interaction is a key factor for the efficiency of CO2 storage in shale formations, as it can significantly alter the shale properties. The formation of carbonic acid from CO2 dissolution is the main cause for the alterations in the physical, chemical and mechanical properties of the shale, which in return affects the storage capacity, pore properties, and fluid transport. Therefore, in this paper, the effect of CO2 exposure on shale properties is comprehensively reviewed, to gain an in-depth understanding of the impact of CO2/shale interaction on shale properties. This paper reviews the current knowledge of the CO2/shale interactions and describes the results achieved to date. The pore structure is one of the most affected properties by CO2/shale interactions; several scholars indicated that the differences in mineral composition for shales would result in wide variations in pore structure system. A noticeable reduction in specific surface area of shales was observed after CO2 treatment, which in the long-term could decrease CO2 adsorption capacity, affecting the CO2 storage efficiency. Other factors including shale sedimentary, pressure and temperature can also alter the pore system and decrease the shale “caprock” seal efficiency. Similarly, the alteration in shales’ surface chemistry and functional species after CO2 treatment may increase the adsorption capacity of CO2, impacting the overall storage potential in shales. Furthermore, the injection of CO2 into shales may also influence the wetting behavior. Surface wettability is mainly affected by the presented minerals in shale, and less affected by brine salinity, temperature, organic content, and thermal maturity. Mainly, shales have strong water-wetting behavior in the presence of hydrocarbons, however, the alteration in shale’s wettability towards CO2-wet will significantly minimize CO2 storage capacities, and affect the sealing efficiency of caprock. The CO2/shale interactions were also found to cause noticeable degradation in shales’ mechanical properties. CO2 injection can weaken shale, decrease its brittleness and increases its plasticity and toughness. Various reductions in tri-axial compressive strength, tensile strength, and the elastic modulus of shales were observed after CO2 injection, due to the dissolution effect and adsorption strain within the pores. Based on this review, we conclude that CO2/shale interaction is a significant factor for the efficiency of CCS. However, due to the heterogeneity of shales, further studies are needed to include various shale formations and identify how different shales’ mineralogy could affect the CO2 storage capacity in the long-term.

show abstract

“…The biggest drawback in utilizing 3D printing for micro-models is the materials used. Petroleum reservoirs primarily contain minerals such as silica, calcite, and mica [23]. However, most of the experimental micro-models that were fabricated used nongeological materials such as glass [22], silicon [24], and polymers [25].…”

Section: Introductionmentioning

confidence: 99%

Surface modification of stereolithography-based 3D printed structures utilizing ultrasonic-atomised sprays

et al. 2023

View full text Add to dashboard Cite

Stereolithography (SLA)-based three-dimensional (3D) printing has become a popular tool for creating experimental models to study the two-phase flow behavior in complex flow structures. The main drawback while implementing such models is the wettability nature of the 3D printed surfaces. As non-geological materials are used while printing the porous designs, the flow mechanics do not follow similar patterns as in the reservoir. This work demonstrates the feasibility of using an SLA-based printing technique to replicate a porous structure. The porosity and pore size values of the 3D print are observed to be very close to that of the porous input image of the rock sample. A simple method to modify the surface characteristics of 3D printed surfaces using an ultrasonic-atomized fine spraying technique is developed. Here a thin layer of CaCO3 is deposited on the 3D printed surface by subjecting it to fine alternate sprays of calcium chloride and sodium carbonate. Thirty cycles of coating are observed to have altered the surface's wettability from neutral to oil-wet, resembling a carbonate reservoir. Graphical abstract Ultrasonic assisted coating of 3D-printed surfaces.

show abstract

Interfacial Tension and Contact Angle Data Relevant to Carbon Sequestration

Cited by 6 publications

References 71 publications

Molecular Dynamics Simulations of Mineral Surface Wettability by Water Versus CO₂: Thin Films, Contact Angles, and Capillary Pressure in a Silica Nanopore

Molecular Dynamics Simulations of Mineral Surface Wettability by Water Versus CO₂: Thin Films, Contact Angles, and Capillary Pressure in a Silica Nanopore

A Review on the Influence of CO2/Shale Interaction on Shale Properties: Implications of CCS in Shales

Surface modification of stereolithography-based 3D printed structures utilizing ultrasonic-atomised sprays

Contact Info

Product

Resources

About

Interfacial Tension and Contact Angle Data Relevant to Carbon Sequestration

Cited by 6 publications

References 71 publications

Molecular Dynamics Simulations of Mineral Surface Wettability by Water Versus CO2: Thin Films, Contact Angles, and Capillary Pressure in a Silica Nanopore

Molecular Dynamics Simulations of Mineral Surface Wettability by Water Versus CO2: Thin Films, Contact Angles, and Capillary Pressure in a Silica Nanopore

A Review on the Influence of CO2/Shale Interaction on Shale Properties: Implications of CCS in Shales

Surface modification of stereolithography-based 3D printed structures utilizing ultrasonic-atomised sprays

Contact Info

Product

Resources

About

Molecular Dynamics Simulations of Mineral Surface Wettability by Water Versus CO₂: Thin Films, Contact Angles, and Capillary Pressure in a Silica Nanopore

Molecular Dynamics Simulations of Mineral Surface Wettability by Water Versus CO₂: Thin Films, Contact Angles, and Capillary Pressure in a Silica Nanopore