.../oil system is not at equilibrium. Inside the chamber, the temperature is higher which increases the diffusion coefficient of the solvent. In addition, the contact time for oil and solvent for gridblocks inside the chambers is high enough, so that the nonequilibrium constants are close to the K-values...

... upscaled or coarsened to reduce the number of gridblocks. Features of Interest (FOI's) must then be inserted into the model before using it in a reservoir simulation model. The initial grid that has been created and provided. The desired feature where more detail is desired is superimposed...

... solving local quadratic equations, and there is no global matrix inversion. Once the DTOF is obtained, it can be utilized as spatial coordinate to transform 3D problems into equivalent 1D problems. Visually, each of the rings in the step 2 in Figure 1 represents a single gridblock after the coordinate...

... and channeling in large scale simulations. waterflooding gridblock water saturation reservoir simulation mohanty correlation experiment model parameter flow in porous media fluid dynamics heterogeneity relative permeability viscous fingering viscosity ratio saturation enhanced recovery...

... shale gas drillstem testing upstream oil & gas dtof unstructured grid eikonal equation unconventional reservoir gridblock application fracture grid system permeability matrix domain Introduction The study of unconventional resources has been an active area of research in response...

... tolerances for linear solvers, certain criteria must be applied to the non-linear Newton iterations. One of the main convergence criteria is that the volume error at any gridblock is less than a small fraction of its pore volume. The linear solver tolerance should be somehow related to this non-linear...

... of a well in a single-layer reservoir, and a relatively long period of production from a multi-layer volatile oil reservoir. Drillstem Testing Fluid Dynamics momentum balance equation flow in porous media drillstem/well testing balance equation reservoir simulation gridblock composition...

... measurement complex reservoir reservoir simulation capillary equilibrium Phase Behavior cumulative gas production liquid phase composition oil production rate gas phase equation capillary pressure society of petroleum engineers gridblock gas production rate production rate pressure value...

... machine learning Reservoir Characterization history matching geological modeling Bayesian Inference reservoir simulation information geologic modeling Artificial Intelligence Upstream Oil & Gas gridblock subfigure facies porosity switching point reservoir model rock property...

... fracture models. We apply the MSR technique to generate unstructured coarse-scale fracture models that are directly based on the DFM sector models. By specifying exactly two subregions (one fracture and one matrix) per gridblock and invoking simplifying assumptions, we are able to use MSR upscaling...

... Abstract The conventional reservoir simulation uses the local equilibrium assumption, where fluids are completely mixed and at equilibrium within individual gridblocks. This assumption allows for no bypassing of oil at the sub-grid scale in gas injection simulation. Oil bypassing by gas...

... experimental results for validation. Implementation of several mechanisms can finally reveal the dominant mechanism for the low salinity water injection. upstream oil & gas mechanism low salinity water injection waterflooding concentration profile elemental concentration gridblock phreeqc...

... and mechanical properties of the sand on the fracturing process. It is expected that the model will find application in designing frac-pack treatments and solid waste disposal in unconsolidated formations. hydraulic fracturing gridblock concentration reservoir geomechanics fracture half length...

... Abstract Methods for multiphase flow upscaling have been investigated and proposed by numerous researchers for decades. However, technologies to generate pseudo relative permeability and assign them to simulation gridblocks have not yet reached maturity in terms of both robustness...

... consider two approaches. In the first approach we simply use multipliers to adjust the heterogeneous permeability field in each layer. In the second approach, we adjust the prior mean of each layer log-permeability field together with individual gridblock log-permeabilities. horizontal log...

... Modeling & Simulation gridblock calculation production control production logging mass flow rate flow rate production monitoring reservoir simulation temperature distribution pressure drop Reservoir Surveillance Upstream Oil & Gas reservoir simulator Property Calculation...

... is strongly limited due to the use of a one-grid system for both reservoir flow and geomechanics deformation. In the case of a large field-scale simulation, the use of a one-grid system gives rise to an extremely large number of gridblocks. On one hand, for an accurate modeling of fluid flow, the gridblocks...

... Strategies to mitigate the high computational expenses of reservoir simulators, such as use of limited number of gridblocks, poor resolution of simulation models, etc. introduce other problems. Limitation on the number of gridblocks, in other words the problem of size, hinders the spatial...

... be underestimated if one uses the leakoff data after mud cake deposition and cake erosion reach equilibrium. More importantly, for the small size of structured orthogonal grids, the concept of equivalent radius for linking the gridblock pressure and bottom-hole flowing pressure is invalid. Modification is required...

.... history matching initial model prediction Artificial Intelligence Upstream Oil & Gas selection adjustment optimization problem gridblock information production data case 4 procedure algorithm reservoir simulation objective function generalized change map iteration well location...