Slip flow in porous media

Moghaddam, Rasoul Nazari; Jamiolahmady, Mahmoud

doi:10.1016/j.fuel.2016.01.057

Cited by 108 publications

(46 citation statements)

References 46 publications

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“…The value of max is taken as 200 nm [45]. Moreover, following Moghaddam and Jamiolahmady [33], we assume that the PSD of shale can be modeled by a gamma distribution…”

Section: Model Developmentmentioning

confidence: 99%

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A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability

Tian

Ren

et al. 2017

Geofluids

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Apparent permeability is an important input parameter in the simulation of shale gas production. Most apparent permeability models assume a single pore size. In this study, we develop a theoretical model for quantifying the effect of pore size distribution on shale apparent permeability. The model accounts for the nonuniform distribution of pore sizes, the rarefaction effect, and gas characteristics. The model is validated against available experimental data. Theoretical calculations show that the larger the pore radius, the larger the apparent permeability. Moreover, the apparent permeability increases with an increase in the width of pore size distribution, with this effect being much more pronounced at low pressure than at high pressure.

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“…The value of max is taken as 200 nm [45]. Moreover, following Moghaddam and Jamiolahmady [33], we assume that the PSD of shale can be modeled by a gamma distribution…”

Section: Model Developmentmentioning

confidence: 99%

“…These models assume that the PSD of shale can be modeled as a power law distribution. Apart from a power law distribution, the PSD of shale can be described by a nonsymmetrical distribution, such as a gamma distribution [31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability

Tian

Ren

et al. 2017

Geofluids

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“…The database used in this study to evaluate our pore pressure‐dependent gas permeability model, equation , consists of three experiments from Nazari Moghaddam and Jamiolahmady [], one pore‐network model from Mehmani et al [], and two lattice‐Boltzmann simulations from Chen et al [] and Landry et al []. In the following, we describe each data set and provide detailed information.…”

Section: Methodsmentioning

confidence: 99%

Upscaling pore pressure‐dependent gas permeability in shales

Ghanbarian

Javadpour

2017

JGR Solid Earth

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Upscaling pore pressure dependence of shale gas permeability is of great importance and interest in the investigation of gas production in unconventional reservoirs. In this study, we apply the Effective Medium Approximation, an upscaling technique from statistical physics, and modify the Doyen model for unconventional rocks. We develop an upscaling model to estimate the pore pressure‐dependent gas permeability from pore throat size distribution, pore connectivity, tortuosity, porosity, and gas characteristics. We compare our adapted model with six data sets: three experiments, one pore‐network model, and two lattice‐Boltzmann simulations. Results showed that the proposed model estimated the gas permeability within a factor of 3 of the measurements/simulations in all data sets except the Eagle Ford experiment for which we discuss plausible sources of discrepancies.

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“…It should be noted here that the Tg of polymers and its blend can be observed by DSC as a stepped increase in the heat capacity sample during heating. When polymers are heated, absorbed heat is changed because of molecular motion in polymer [32].…”

Section: Fig 3:-ftir Spectra Of the Zno-pmma Composites With Differementioning

confidence: 99%

“…To overcome this problem, it is necessary to determine clearly the heat capacity of the composite with different reinforcement. Heat capacity of the composites depending on the amount, type and morphology of reinforcement, varies significantly [21][22][23][24][25][26][27][28][29][30][31][32][33]. However, the specific heat capacity of ZnO-PMMA composites used the electronic and optoelectronic areas were not determined in the literature.…”

mentioning

confidence: 99%

SPECIFIC HEAT CAPACITY OF FLOWERLIKE ZnO-PMMA COMPOSITES INVESTIGATED BY DSC.

Ijar¹,

Gültek²,

Sezer³

et al. 2017

IJAR

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A series flowerlike ZnO-PMMA (FL-ZnO-PMMA) composites were synthesized from PMMA and different amount of flowerlike ZnO (FLZnO) particles via the solution direct-dispersing and in-situ polymerization method. FL-ZnO particles have been synthesized using the hydrothermally technique. Effects of synthesis conditions on the crystal structure, crystallite size, microstructure and morphological properties of the produced FL-ZnO particles were investigated by FTIR, X-ray and SEM. The prepared ZnO nanostructures with flowerlike morphology have been blended with methyl methacrylate and this solution was polymerized by in-situ radical polymerization technique to prepare FL-ZnO-PMMA composite films. The obtained nanocomposite films are highly transparent, flexible and chemically stable. Investigation of specific heat capacity of composites is achieved by using differential scanning calorimeter. This study is unique about exploration of effect of FL-ZnO amount on specific heat capacity of polymeric composites.Copy Right, IJAR, 2017,. All rights reserved. …………………………………………………………………………………………………….... Introduction:-Since the beginning of this century, in the science and engineering have seen a rapid increase in interest for synthesis of the materials at the nano scale. Nanomaterials have attracted a great deal of research attention due to their potential use as catalysts, sensors, ceramic and biomaterial because of the physical, electronic, and magnetic properties resulting from their quantum size [1-3]. The potential for nanotechnology is immensely diverse with potential applications in the fields of electronics, biomedical devices, energy applications, military uses, and waste management [3][4][5]. Nanomaterials could be utilized to design nanotransistors, to develop and deliver medicines for locally treating diseases and ailments within the body, and for the creation new age weapons and armor for military applications [6][7][8]. Within the field of nanomaterials under worldwide research is the subset of electronic nanomaterials and optic nanoparticles.Specific heat capacity as a basic thermal property is one of the main parameters for evaluation, calculation and design of thermal system. It is defined as the required heat per unit mass of material when raising 1°C. Composites have an extremely broad usage range, and there are different requirements on specific heat capacity according to different cases. For example, for high-temperature heat shielding composites used in a short term, high specific heat is required in order to absorb more heat in use; however, for thermal sensitive function composites, small specific heat is required in order to have a higher thermal sensitivity. By the addition of fillers to plastics the thermal behavior of polymers and composites can be increased significantly [9][10][11][12][13][14].

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Slip flow in porous media

Cited by 108 publications

References 46 publications

A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability

A Theoretical Analysis of Pore Size Distribution Effects on Shale Apparent Permeability

Upscaling pore pressure‐dependent gas permeability in shales

SPECIFIC HEAT CAPACITY OF FLOWERLIKE ZnO-PMMA COMPOSITES INVESTIGATED BY DSC.

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