... et al. 2007 ; Liu and Emami-Meybodi 2022b ). Abstract We present a mathematical model for one-dimensional gas transport in organic-rich nanoporous media subject to nonequilibrium sorption. The model is developed from two governing equations to simulate Knudsen diffusion and viscous flow...

... After a review of the diffusive transport mechanisms, the methodology workflow and its numerical implementation are described. Next, we validate the proposed model and present applications on two realistic case studies. Finally, results are discussed and related conclusions are derived. Review...

... and limitations in multi-layered field applications in particular. This paper presents a Mittag-Leffler (ML) function decline model which enhances the reliability of forecasts for multi-layered unconventional oil reservoirs by honoring anomalous diffusion physics for each layer. Many traditional decline curve...

... differences from well to well. Using the matched component by the simulation, the wellbore temperature and pressure profiles are reliably predicted, and the envelope relationship in phase behavior of condensate gas flow is reasonably determined. Thermal and molecular diffusion are still the main mechanisms...

... higher than that of H 2 under similar conditions. Conversely, the measured CO 2 diffusivity is an order of magnitude lower than the diffusivity of H 2 . The results also show that IFT increases with increasing salinity in both brine-gas systems and decreases with pressure, nevertheless, the reduction...

... When the pore radius R p is much larger than the mean free path of the gas molecule λ , Knudsen diffusion is insignificant compared to the molecular (continuum) diffusion. The effect of pore wall on gas transport enhances when R p is comparable to λ . Studies have shown that the Knudsen...

... drilling data acquisition wax remediation variation oilfield chemistry well logging flow assurance asphaltene remediation hydrate inhibition logging while drilling log analysis reservoir characterization gradient diffusion paraffin remediation well b-pilot well a-pilot fluid mapping module...

... concentration biodegradation diffusion asphaltene remediation remediation of hydrates mass spectrometry reservoir betancourt mullin equation of state asphaltene asphaltene inhibition petroleum engineer fhz eos application yen-mullin model pomerantz hydrate inhibition upstream oil & gas...

... permeability hysteresis, diffusion, and sorption. A dual-porosity naturally fractured numerical compositional model is used that considers molecular diffusion and sorption to represent the flow mechanisms during the injection process. Killough's method, Langmuir's adsorption model, and Sigmund correlation...

... known as kerogen. The latter can be envisioned as naturally occurring nanoporous media where diffusion is believed to be the predominant transport mechanism. Moreover, kerogen exhibits different geo-mechanical behavior than typical clastic sedimentary rocks. Hence, kerogen responds to changes...

... Abstract We present a continuum-scale diffusion-based model informed by pore-scale data for gas transport in organic nanoporous media. A mass transfer and an adsorption model are developed by considering multiple transport and storage mechanisms, including bulk diffusion and Knudsen diffusion...

...Methods This section describes the conceptual model and presents the diffusion-based model for mass transport through the ultratight matrix. Conceptual model Abstract The complex pore structure and storage mechanism of shales make the mass transport in these ultratight reservoirs...

... column mullin fluid gradient connectivity boycott effect equilibration lateral gradient solution gas convection asphaltene content density inversion diffusion gradient Introduction Reservoir Fluid Geodynamics (RFG) In order to understand current manifestations of a reservoir...

... 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. enhanced recovery Artificial Intelligence Modeling...

... re-defined. CO 2 displacement, CO 2 -oil interaction driven by diffusion, and depressurization dominated the first cycle, whereas from the second cycle the first two forces became insignificant. This implied that the soaking phase could be minimized or even eliminated from the second cycle in order...

... Abstract The efficiency of miscible gas flooding relies on the mass transfer rate of species from one phase to another. Determining the diffusion coefficient of a gas-oil system is a critical factor to characterize this transfer phenomenon between gas and oil. Many gas-oil systems are being...

... transporting process in shale nanopores including diffusion, sorption Kinetics, Knudsen diffusion, and sorbed-phase surface diffusion. Accordingly, two governing partial differential equations (PDEs) are written for free and sorbed gases. In the proposed method, boundary integral formulations are analytically...

... mechanisms in these processes (diffusion, dispersion, advection and capillary pressure) were examined within the context of the derived scaling groups using reservoir simulation of SBH at three different geometric scales, ranging from the laboratory scale through a semi-field scale to the field scale...

... of phase j; q i is the source term of component i ; and Γ i represents the transfer of component i from matrix to fracture. We note that diffusion and dispersion are not included in the overall molar flux for simplicity. The transfer rate of a component i from matrix to fracture is given...

.... ( 1998 ). The diffusional transport methane in liquid water: Method and result of experimental investigation at elevated pressure . J. Pet. Sci. Eng. , 21 , 53 – 164 . 25. Creux , P. , Meyer , V. , Cordelier , P.R. , Franco , F. , & Montel , F. ( 2005 ). Diffusivity...