... technologies are capable of building micromodels that are either water-wet or oil-wet, a technique to achieve a representative mixed-wet property is still unreached. In this work, we introduce a novel surface coating capability using thin film deposition to fabricate surfaces with selective wettability, oil...

... , the magnetic susceptibility χ=12.6 (equals μ r −1 where μ r is the relative magnetic permeability), and the saturation magnetization is 32.5 mT. The magnetic flux density B → at the micromodel in the experiment is about 5mT (see Appendix A ) which is only 15% of the saturation magnetization...

... Abstract We provide experimental evidence of wettability alteration using seawater salinity brine of an oil-wet system composed of a three-dimensional carbonate micromodel, crude oil, and connate-water brine salinity. We designed this procedure as a first step for evaluation of using seawater...

... step, the same experiments were repeated using micromodels representing porous media. The micromodel (grain diameter of 0.15 mm and a pore throat of 0.075 mm) was designed with uniform properties (constant grain diameter and pore throat). By using the Thomson equation, the boiling points...

.... Although it yields lower recoveries, injection of chemical solutions for the same purpose without pre-solvent treatment might be an efficient (more economical) EOR method. A series of 2-D etched glass micromodel (sandstone replica with a fracture) experiments were designed to investigate the mechanics...

... and core-scale. Direct flow visualisation results of our high-pressure micromodel experiments reveal very vividly the pore-scale events that take place as CO2 gradually leaves the injected carbonated water and dissolves in the oil. The results show that the pore-scale interactions of carbonated water...

... to the water phase of water alternating gas (WAG) and injected into waterflood residual oil in two dimensional glass micromodels to study the effect of the nanoparticles qualitatively at low pressures. Silicon oxide (SiO 2 ) and aluminum oxide (Al 2 O 3 ) nanoparticles, at different concentrations, were...

... experiments to assess polymer rheology in induced fractures. The section ‘Experimental Setup and Micromodels’ gives a brief introduction to micromodels and explains the micromodels specifically used for experiments. Field Description and Polymer Pilot The Matzen Field in Austria was discovered in 1949...

... modification has not yet emerged. This paper presents the results of a comprehensive set of direct visualization (micromodel) experiments which investigate the low salinity effect (LSE) from a novel perspective. The visualization study, using reservoir-condition micromodels, shows that when low salinity brine...

...) and the polymer increases the injection water viscosity to reduce the possibility of channeling and viscous fingering during the process. The objective of this study is to grasp a better understanding of the mechanisms of ASP flooding will by conducting several experiments in carbonate micromodels. A micromdel...

.... In this work we investigate the behavior of foam flow in fractures at various foam qualities and liquid and gas velocities. Laboratory experiments with different fracture replicates etched in silicon micromodels were used. Micromodels allow real time observations of flow behavior with a microscope and provide...

... Table 1 Micromodel Specifications Dimensions 5 cm × 5 cm Unit cells per 5 cm 104 Unit cell dimensions 480 × 400 μm Etched depth 25 μm Etched pore volume 0.029 mL Porosity, Ø 47% Absolute Permeability, k 1 Darcy Micromodels were fabricated...

... using water, polymer, and alkali-surfactant slugs have been conducted in two-dimensional silicon micromodels to visualize the pore-scale displacement. The viscosity ratio controls the finger structure. As the viscosity ratio increases, the number of growing fingers (or branches) before breakthrough...

... of interfacial tension reduction (via biosurfactant) and bioclogging in water-wet micromodels, using Shewanella oneidensis (MR-1) that causes bioclogging and Bacillus mojavensis (JF-2) that produces biosurfactant and causes bioclogging. Micromodels were flooded with an assortment of flooding solutions...

... fluid dynamics viscosity particle interface flow in porous media upstream oil & gas tracer particle relaxation time surface tension equation lattice-boltzmann simulation micromodel viscous fingering simulation permeability boek dispersion characterization velocity field...

... Following the micromodel experiments, a laboratory study on a long core (90cm) was carried out consisting of a reservoir rate depletion (1.45psi/day) followed by a series of reservoir rate repressurisation/depletion cycles. The details of the rock/fluid system, experimental rig and depletion...

... The construction of a glass transparent micromodel that allows transport of microbes. A method in which PIV is used to track particles passing through a micromodel elucidating heterogeneities created by biofilms. Included is the procedure to grow the strain P. chlororaphis , which...

... of buoyancy. In this work, we use experiments conducted in two-dimensional micromodels to investigate the effect of gravity at low interfacial tension. The micromodels have the geometrical and topological characteristics of sandstone and the network is etched into silicon. Porelevel mechanics are observed...

... and polymer solution/oil displacements in a two-dimensional etched-silicon micromodel. The micromodel has the geometrical and topological characteristics of sandstone. Conventional hydrolyzed polyacrylamide solutions and newly developed associative polymer solutions with concentrations ranging from 500 ppm...

... Upstream Oil & Gas experiment surfactant solution enhanced recovery IFT oil saturation spontaneous imbibition interfacial tension Artificial Intelligence displacement pore-level mechanism injection waterflooding micromodel spe 136194 image analysis recovery efficiency two...