Using X-ray computed microtomography, we have visualized and quantified the in situ structure of a trapped nonwetting phase (oil) in a highly heterogeneous carbonate rock after injecting a wetting phase (brine) at low and high capillary numbers. We imaged the process of capillary desaturation in 3D and demonstrated its impacts on the trapped nonwetting phase cluster size distribution. We have i...

Quantifying CO2 transport and average effective reaction rates in the subsurface is essential to assess the risks associated with underground carbon capture and storage. We use X-ray microtomography to investigate dynamic pore structure evolution in situ at temperatures and pressures representative of underground reservoirs and aquifers. A 4 mm diameter Ketton carbonate core is injected with CO...

The suitability of three vapor deposition techniques for pore size modification was evaluated using polycarbonate track etched membranes as model supports. A feature scale model was employed to predict the pore geometry after modification and the resulting pure water flux. Physical vapor deposition (PVD) and pulsed plasma-enhanced chemical vapor deposition (PECVD), naturally, form asymmetric na...

Understanding porous media properties and their scale dependence have been an active subject of research in the past several decades hydrology, geosciences petroleum engineering. The flow is attributed to small- large-scale heterogeneities, such as pore size distribution, connectivity, long-range correlations, fractures faults orientations, spatial temporal variations. main objective this study...

We investigate the uid dynamics in two-dimensional micromodels that represent natural complex porous media using micro-Particle Image Velocimetry (micro-PIV). The pore-scale velocity distributions are measured for single-phase ow and are in very good agreement with direct numerical simulations. Our validated and optimized Micro-PIV system is then used to investigate immiscible two-phase ow prop...

The connective hard tissues bone and teeth are highly porous on a micrometer scale, but show high values of compression strength at a relatively low weight. The fabrication of porous materials has been actively researched and different processes have been developed that vary in preparation complexity and also in the type of porous material that they produce. Methodologies are available for dete...

Reticulated porous ceramic (RPC) made of ceria are promising structures used in solar thermochemical redox cycles for splitting CO₂ and H₂O. They feature dual-scale porosity with mm-size pores for effective radiative heat transfer during reduction and µm-size pores within its struts for enhanced kinetics during oxidation. In this work, the detailed 3D digital representation of the complex dual-...

We present a framework for the application of multiscale science and technology to Enhanced Oil Recovery [EOR] by propagating physical models for wetting and flow from the molecular scale to the scale of pore networks in reservoir rock. The framework contains dedicated, computational and experimental platforms for performing calibrations at critical length scales. The appoach enables us to scie...

Understanding the dynamics of pore-scale multicomponent gas and oil mass transfer across water "lms during hydrocarbon gas injection in petroleum reservoirs is important in the design of tertiary oil recovery schemes at the "eld scale. The water "lms prevent oil and gas coming into direct contact and, for miscible gas injection, delay the onset of miscibility. We use a pore-scale model to descr...