chemical flooding, especially alkaline/surfactant/polymer flooding, is of increasing interest due to the world increasing oil demand. this work shows the aspects of using alkaline/surfactant/polymer as an enhanced oil recovery method in the porous media having a high dead-end pore frequency with various dead-end pore parameters (such as opening, depth, aspect ratio, and orientation). using glas...

High pressure mercury, nitrogen adsorption, nano-CT, and scanning electron microscope with energy spectrum analysis were conducted on core shale samples for studying the characteristics of Taiyuan formation in the eastern uplift of Liaohe depression. The research results show that the shale gas reservoir pores are mainly open pores such as the wedge-shape pores and parallel-plate pores. By a ge...

The canonical NLT partition function of a quasi-one dimensional (q1D) one-file system equal hard disks Pergamenshchik [19] provides an analytical description the thermodynamics and ordering in this (a pore) as linear density Nd/L where d is disk diameter. We derive formulae for distance dependence translational pair distribution distances between next neighbor disks, then demonstrate their use ...

We present • study of the morphology •nd bulk physical properties of • Fontainebleau s•ndstone vi• an X ray tomographic •nalysis. Synchrotron-b•sed X ray tomographic techniques provide us with a high-resolution (7.5 •um), threedimensional digitized representation of the sandstone that leaves the s•mple intact and unaltered. To estimate • wide spectrum of bulk properties of the Fontainebleau s•n...

Computational pore-scale network models describe two-phase porous media ̄ow systems by resolving individual interfaces at the pore scale, and tracking these interfaces through the pore network. Coupled with volume averaging techniques, these models can reproduce relationships between measured variables like capillary pressure, saturation, and relative permeability. In addition, these models all...

−− A mathematical model was developed to describe mass transport in polymeric films based on modifications of Fick’s law in a continuous macroscopic approach. The purpose of this work was specifically to model the transport of water vapor and oxygen in polymeric films at the pore level, based on physical aspects of the condensation process and the morphology and connectivity of the porous mediu...

Dissolved Rare Earth Elements (REE) and radiogenic neodymium (Nd) isotope composition (?Nd) of seawater are widely used geochemical tools in studying marine processes, but their modern ocean budgets poorly understood. Recent discoveries large benthic fluxes REE with unique ?Nd signatures from sediments, particularly the deep-sea, have led to a “bottom-up” hypothesis, which suggests that early d...

Amphotericin B nanodisks (AMB-ND) are ternary complexes of AMB, phospholipid and apolipoprotein organized as discrete nanometer scale disk-shaped bilayers. In gel filtration chromatography experiments, empty ND lacking AMB elute as a single population of particles with a molecular weight in the range of 200 kDa. AMB-ND formulated at a 4:1 phospholipid:AMB weight ratio separated into two peaks. ...

The effect of pore-scale heterogeneity on non-Darcy flow behaviour is investigated by means of direct flow simulations on 3-D images of a beadpack, Bentheimer sandstone and Estaillades carbonate. The critical Reynolds number indicating the cessation of the creeping Darcy flow regime in Estaillades carbonate is two orders of magnitude smaller than in Bentheimer sandstone, and is three orders of ...