Residual gas saturation is one of the most important parameter in determining recovery factor of water-drive gas reservoir. Visual observation of processes occurring at the pore level in micromodels can give an insight to fluid displacements at the larger scale and also help the interpretation of production performance at reservoir scale. In this study experimental tests in a glass micromod...

[1] We simulate two-fluid-phase flow at the pore scale using a lattice Boltzmann (LB) approach. Using a parallel processing version of the Shan-Chen model that we developed, we simulate a set of ideal two-fluid systems and a model two-fluid-phase porous medium system comprised of a synthetic packing with a relatively uniform distribution of spheres. We use the set of ideal two-phase systems to ...

5 [1] We study the influence of buoyancy and spatial heterogeneity on the spreading of the 6 saturation front of a displacing fluid during injection into a porous medium saturated 7 with another, immiscible fluid. To do so we use a stochastic modeling framework. We 8 derive an effective large‐scale flow equation for the saturation of the displacing fluid that 9 is characterized by six nonlocal ...

A system is disclosed for condensation particle counting in conjunction with modifying an aerosol to enhance the formation and growth of droplets of a selected working fluid, preferably water. Before saturation with the working fluid, the aerosol is exposed to an aerosol modifying component, preferably a vapor including molecules that are adsorbed onto surfaces of the particles or other element...

The petrophysical properties can be proper indicators to identify oil and gas reservoirs, since the pore fluids have significant effects on wave response. We performed ultrasonic measurements two sets of tight siltstones dolomites at partial saturation. P- S-wave velocities are obtained by pulse transmission technique, while attenuation is calculated using centroid-frequency shift spectral-rati...

A single-shot method to determine the capillary pressure curve employed a single rotational velocity centrifugation experiment and one-dimensional Centric Scan SPRITE (single-point ramped imaging with T1 enhancement) MRI (magnetic resonance imaging) to determine the fluid saturation distribution, S(r), along the length (r) of the core. A full capillary pressure curve can be directly determined ...

The capillary pressure-saturation relation is one of the key constitutive equations used for modeling multiphase (or partially saturated) flow in porous materials. It known that this empirical depends strongly on dynamic conditions, but impact a heterogeneity interface relationship has been studied less. present study employed optical imaging to visualize two-phase drainage under different inje...

[1] We measured the electric parameters for four different configurations of unconsolidated homogeneous and layered sands as a function of frequency, water saturation, and salinity under fluid flow conditions. Our objective is to determine if the effect of heterogeneities at scales much smaller than the skin depth can be captured by introducing effective frequency‐dependent electrical values wh...