..., primarily because CO 2 can be injected more easily into macropores and mixed with the oil. Such a multiscale transport model facilitates a comprehensive understanding of the gas EOR mechanism and provides a valuable framework for designing effective EOR methods for shale reservoirs. fluid dynamics...

..., pre-combustion, and post-combustion). Reservoir flow modeling simulations show that CBFF is the best potential waterless fracturing fluid option for fracturing unconventional shale reservoirs in the Burgos Basin. We conducted fracturing simulations to obtain the fracture geometry resulting from pure...

... conversion particle shale reservoir Introduction Where V H 2 and V CH 4 are the volumes of hydrogen and methane in produced gases, respectively, measured by the GC-MS. Performances of catalysts Previous studies on in-situ oil upgrading indicated that metal components in rock minerals may...

... relationship dewpoint upstream oil & gas shale gas cgr eagle ford choke management figure 4 shale reservoir condensate banking adsorbed ga oil shale shale oil choke choke history stb mmscf isotherm petroleum engineer Statement of the Problem Unconventional wells are generally...

... Abstract There are increased development activities in shale reservoirs with ultra-low permeability thanks to the advances in drilling and fracking technology. However, representative reservoir fluid samples are still difficult to acquire. The challenge leads to limited reservoir fluid data...

..., a difficult problem for the DNN model. This paper is Not only is this paper intended to propose a robust model, but it also provides the insight that petroleum engineers can use as proxy models to replace complexity reservoir modeling or estimate approximate productivity of shale reservoirs before drilling...

... ) , where T is temperature, K. As illustrated in Fig.1 and Fig.2 , water and shale gas coexist in gas shale reservoir. Shale gas stores in shale fractures/pores in free and adsorbed phases, while water initially exists in bulk and adsorbed phase in shale reservoir. The moisture content in shale...

... A critical mechanism of the CO 2 huff-and-puff process in shale reservoirs is the improvement of fluid phase behavior in the pore scale. In recent years, some experimental and numerical attempts have been performed. Microfluidic and nanofluidic chips are among the most commonly-used methods...

...Conclusions The following are the significant conclusions of this study: Imbibition of low-salinity brine (e.g., fracturing fluids) into oil-wet shale reservoirs is not due to capillary imbibition or gravity—it is the result of capillary osmosis. Due to the oil-wet nature...

... significantly by H&P gas injection. The possibility of desorption and gas diffusion is investigated. The approach implemented in this H&P history match of an Eagle Ford pilot well should prove of value for simulating complex shale reservoirs. Modeling & Simulation Artificial Intelligence...

... by combining Gamma Log, Density Log, Neutron Log, NMR Log, and Cross-plot. An easier way to estimate porosity is provided. We combine the matrix density and kerogen density together and obtain them from core analysis. Poupon's et al. (1954) laminar model has some limitations when applying in shale reservoirs...

... to upscale the pore-scale fluid thermodynamic properties to the reservoir-scale and then incorporate it into our in-house compositional simulator to examine the effect of confinement on shale reservoir production. Firstly, a pore-scale fluid phase behavior model is developed in terms of the pore type...

... with their compatibility with complex fluids at high temperature and pressure make our apparatus ideal for systematic studies of capillary condensation in shale. Abstract Shale reservoirs are estimated to account for approximately 10-30% of oil and gas worldwide, yet operators rarely produce more than 10...

... During its injection and propagation through the reservoirs, the CO 2 will have multiple interactions with the reservoir rock and fluids. These interaction will govern the ability of the CO 2 to increase oil recovery from the shale reservoir, and thus must be well understood. The interactions...

... of BEM approach to solve single (or pseudo-single) component gas flow considering multiple transport mechanisms in shales reservoirs for the first time. The solution technique is structured to solve two nonlinear governing PDEs written for free and sorbed phase, respectively. Gas flow mechanisms...

... above the original bubble-point pressure, gas evolves near the injection well and it later breaks through the production well as produced gas is injected. Additionally, the primary depletion and huff-n-puff gas injection in tight shale reservoirs by using the compositionally extended black-oil model...

... Alfi et al. (2014) and Alfi et al. (2015) investigated multi-phase flow of hydrocarbons in liquids-rich shale reservoirs by means of a micrometer scale simulation model. Three phases (gas, oil, and water) and three pseudo-components (gas, oil, and water) formed the basis of their models...

... industrial practice of fluid PVT characterization utilizes the bulk-scale PVT cell measurement. However, PVT for shale reservoirs cannot be measured in bulk-scale PVT cell because the phase behavior is significantly altered from bulk behavior by the nanopores in shale rock. In short, for shale reservoirs...

... logging oil shale log analysis complex reservoir vitrinite reflectance geochemical productivity index free water porosity partial index moveable oil reservoir shale reservoir porosity oil saturation index shale oil reservoir organic matter flow capacity Example Well piedrahita...

.... shale gas shale reservoir porosity matrix Upstream Oil & Gas threshold pressure gradient application formulation Civan porous matrix kerogen fracture equation complex reservoir rigid porous matrix coefficient porous media society of petroleum engineers poroelasticity permeability...