Background: In recent years, there has been a trend towards deterioration in the structure of residual reserves at fields Kazakhstan. A significant part is located low-permeability reservoirs and zones not covered by flooding. The main factor negatively affecting productivity efficiency development heterogeneity oil reservoirs.
 Oil-saturated formations are an alternation permeable oil-sat...

Abstract Nari Formation is considered as one of the most important oil and gas exploration targets. These fine-grained tight sandstone reservoirs face enormous challenges due to their extremely low matrix porosity permeability. Hence, in this regard, study was carried out collect high-quality data on petrophysical properties along with mineralogy microstructural characteristics diagenesis. The ...

Ocean surface films can damp short capillary-gravity waves, reduce the surface mean square slope, and induce ‘‘sigma0 blooms’’ in satellite altimeter data. No study has ascertained the effect of such film on altimeter measurements due to lack of film data. The availability of Environmental Response Management Application (ERMA) oil cover, daily oil spill extent, and thickness data acquired duri...

This paper addresses one of the major challenges in water-flooded oil reservoirs, which is early water breakthrough due to the presence of high permeable layers in the media. COMSOL Multiphysics is used to model two phase (water and oil) flow in dual-permeability porous medium at micro-scales. The heat transfer module is coupled with the laminar two-phase flow interface, because temperature aff...

BACKGROUND Vinegar-baked Radix Bupleuri (VBRB) enhances the effects of other drugs on the liver by increasing drug distribution to the liver, but the mechanism of action remains unclear. The present study was designed to determine the effects of VBRB on the membrane permeability, constituents, and P-glycoprotein (P-gp) activity of hepatocyte BRL cells, in order to interpret the liver targeting ...

The search for natural sources of molecules that exhibit biological activity has intensified in the last 20 years. The andiroba (Carapa guianensis) oil is known for its medicinal actions [1], and biological activities, among them the antioxidant action [2]. The use of traditional techniques for the determination of antioxidant activity in vegetable oils faces strong competition from modern tech...

Membrane applications for the separation of surfactant-stabilized emulsions are often constrained by a deficiency in permeability and anti-fouling properties. Herein, special wetted cotton fabric with protective layer (P-MH@CF) durable performance was synthesized two-step method, which related to interfacial ion migration technology unilateral spraying treatment. Permeability water P-MH@CF memb...

We propose a practical realization of electromagnetic spherical cloaking by layered structure of homogeneous isotropic materials. By mimicking the classic anisotropic cloak by many alternating thin layers of isotropic dielectrics, the permittivity and permeability in each isotropic layer can be properly determined by effective medium theory in order to achieve invisibility. The model greatly fa...

permeability is a property of porous medium that quantifies rock capacity to transmit fluids. frequently, core based permeability data are not available either because of the borehole conditions or due to the high cost of coring. for these reasons, over the years attempts have been made to estimate permeability by alternative ways. permeability is an elusive parameter in hydrocarbon reservoirs ...