A critical assessment of capillary condensation and evaporation equations: A computer simulation study

Wongkoblap, Atichat; D., D.; Birkett, Greg; Nicholson, D.

doi:10.1016/j.jcis.2011.01.074

Cited by 31 publications

(22 citation statements)

References 38 publications

(50 reference statements)

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“…Walton et al [26] used the grand canonical Monte Carlo simulation (GCMC) to study the condensation of confined fluids and found it to occur at a pressure lower than what was expected. Wongkoblap et al [27] followed a similar approach and reported similar observations with some pore size-dependent hysteresis in the condensation/evaporation processes.…”

Section: Limitations Of Macroscopic Equationsmentioning

confidence: 74%

Sustainable Production from Shale Gas Resources through Heat-Assisted Depletion

et al. 2020

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Advancements in drilling and production technologies have made exploiting resources, which for long time were labeled unproducible such as shales, as economically feasible. In particular, lateral drilling coupled with hydraulic fracturing has created means for hydrocarbons to be transported from the shale matrix through the stimulated network of microcracks, natural fractures, and hydraulic fractures to the wellbore. Because of the degree of confinement, the ultimate recovery is just a small fraction of the total hydrocarbons in place. Our aim was to investigate how augmented pressure gradient through hydraulic fracturing when coupled with another derive mechanism such as heating can improve the overall recovery for more sustainable exploitation of unconventional resources. Knowledge on how hydrocarbons are stored and transported within the shale matrix is uncertain. Shale matrix, which consists of organic and inorganic constituents, have pore sizes of few nanometers, a degree of confinement at which our typical reservoir engineering models break down. These intricacies hinder any thorough investigations of hydrocarbon production from shale matrix under the influence of pressure and thermal gradients. Kerogen, which represents the solid part of the organic materials in shales, serves as form of nanoporous media, where hydrocarbons are stored and then expelled after shale stimulation procedure. In this work, a computational representation of a kerogen–hydrocarbon system was replicated to study the depletion process under coupled mechanisms of pressure and temperature. The extent of production enhancement because of increasing temperature was shown. Moreover, heating requirements to achieve the enhancement at reservoir scale was also presented to assess the sustainability of the proposed method.

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Section: Limitations Of Macroscopic Equationsmentioning

confidence: 74%

Sustainable Production from Shale Gas Resources through Heat-Assisted Depletion

et al. 2020

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“…This phase transition in the fluid phase is found to be metastable and characterized by a hysteresis depending on diameter of the pore. With decreasing adsorption temperature, the activation barrier for capillary condensation is found to increase and a widening of the hysteresis is observed 31,35,36 .…”

Section: Adsorption Stress Model For Determination Of Low Temperaturementioning

confidence: 98%

The Role of Temperature and Adsorbate on Negative Gas Adsorption in the Mesoporous Metal-Organic Framework DUT-49

Krause¹,

Evans²,

Bon³

et al. 2020

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In this contribution, we present an extensive investigation of adsorption of a range of different gases at various temperatures in DUT-49, a metal-organic framework which features a negative gas adsorption (NGA) transition. Adsorption experiments at temperatures ranging from 21 to 308 K, were used to identify, for each guest, a critical temperature range in which NGA occurs. The experimental results were complemented by molecular simulations that rationalize the absence of NGA at elevated temperatures and the non-monotonic behavior observed upon temperature decrease.

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“…In the modern literature [3][4][5][6][7], capillary condensation is often associated with the reverse evaporation process, which is sometimes called capillary evaporation [4][5][6][7]. However, such ter minology is hardly justified, since only capillary con densation is caused by capillary forces, while evapora tion occurs more or less trivially and, like desorption relative to adsorption, is only an aspect of capillary condensation.…”

Section: Introductionmentioning

confidence: 99%

On the theory of capillary evaporation in porous bodies

Русанов

2015

Prot Met Phys Chem Surf

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A critical assessment of capillary condensation and evaporation equations: A computer simulation study

Cited by 31 publications

References 38 publications

Sustainable Production from Shale Gas Resources through Heat-Assisted Depletion

Sustainable Production from Shale Gas Resources through Heat-Assisted Depletion

The Role of Temperature and Adsorbate on Negative Gas Adsorption in the Mesoporous Metal-Organic Framework DUT-49

On the theory of capillary evaporation in porous bodies

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