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Title: Gas sorption and non-Darcy flow in shale reservoirs

Abstract

Gas sorption and non-Darcy flow are two important issues for shale gas reservoirs. The sorption consists of dissolution and adsorption. Dissolved gas and adsorbed gas are different. The former is dissolved in the shale matrix, while the latter is concentrated near the solid walls of pores. In this paper, the Langmuir equation is used to describe adsorption and Henry’s law is used to describe dissolution. The K coefficient in Henry’s law of 0.052 mmol/(MPa g TOC) is obtained by matching experimental data. The amount of dissolved gas increases linearly when pressure increases. Using only the Langmuir equation without considering dissolution can lead to a significant underestimation of the amount of sorbed gas in shales. For non-Darcy gas flow, the apparent permeability model for free gas is established by combining slip flow and Knudsen flow. For adsorbed gas, the surface diffusion effect is also considered in this model. Here, the surface diffusion coefficient is suggested to be of the same scale as the gas self-diffusion coefficient, and the corresponding effective permeability is derived. When

Authors:
 [1];  [1]
  1. Texas Tech Univ., Lubbock, TX (United States)
Publication Date:
Research Org.:
Texas Tech Univ., Lubbock, TX (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1503615
Grant/Contract Number:  
FE0024311
Resource Type:
Accepted Manuscript
Journal Name:
Petroleum Science
Additional Journal Information:
Journal Volume: 14; Journal Issue: 4; Journal ID: ISSN 1672-5107
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; Apparent gas permeability; Shale; Adsorbed gas; Dissolved gas; Surface diffusion

Citation Formats

Wang, Xiukun, and Sheng, James. Gas sorption and non-Darcy flow in shale reservoirs. United States: N. p., 2017. Web. doi:10.1007/s12182-017-0180-3.
Wang, Xiukun, & Sheng, James. Gas sorption and non-Darcy flow in shale reservoirs. United States. doi:10.1007/s12182-017-0180-3.
Wang, Xiukun, and Sheng, James. Sat . "Gas sorption and non-Darcy flow in shale reservoirs". United States. doi:10.1007/s12182-017-0180-3. https://www.osti.gov/servlets/purl/1503615.
@article{osti_1503615,
title = {Gas sorption and non-Darcy flow in shale reservoirs},
author = {Wang, Xiukun and Sheng, James},
abstractNote = {Gas sorption and non-Darcy flow are two important issues for shale gas reservoirs. The sorption consists of dissolution and adsorption. Dissolved gas and adsorbed gas are different. The former is dissolved in the shale matrix, while the latter is concentrated near the solid walls of pores. In this paper, the Langmuir equation is used to describe adsorption and Henry’s law is used to describe dissolution. The K coefficient in Henry’s law of 0.052 mmol/(MPa g TOC) is obtained by matching experimental data. The amount of dissolved gas increases linearly when pressure increases. Using only the Langmuir equation without considering dissolution can lead to a significant underestimation of the amount of sorbed gas in shales. For non-Darcy gas flow, the apparent permeability model for free gas is established by combining slip flow and Knudsen flow. For adsorbed gas, the surface diffusion effect is also considered in this model. Here, the surface diffusion coefficient is suggested to be of the same scale as the gas self-diffusion coefficient, and the corresponding effective permeability is derived. When},
doi = {10.1007/s12182-017-0180-3},
journal = {Petroleum Science},
number = 4,
volume = 14,
place = {United States},
year = {2017},
month = {7}
}

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Works referenced in this record:

Adsorption of methane and carbon dioxide on gas shale and pure mineral samples
journal, December 2014


Molecular dynamics simulations of oil transport through inorganic nanopores in shale
journal, May 2016


Report: a Model for Flows in Channels, Pipes, and Ducts at Micro and nano Scales
journal, February 1999

  • Ali Beskok, George Em Karniadakis,
  • Microscale Thermophysical Engineering, Vol. 3, Issue 1
  • DOI: 10.1080/108939599199864

Numerical Simulation of Stress and Strain Due to Gas Sorption/Desorption and Their Effects on In Situ Permeability of Coalbeds
journal, October 2006

  • Gu, F.; Chalaturnyk, R. J.
  • Journal of Canadian Petroleum Technology, Vol. 45, Issue 10
  • DOI: 10.2118/06-10-05

Gas Permeability of Shale
journal, August 2012

  • Sakhaee-Pour, Ahmad; Bryant, Steven
  • SPE Reservoir Evaluation & Engineering, Vol. 15, Issue 04
  • DOI: 10.2118/146944-PA

A model of dynamic adsorption–diffusion for modeling gas transport and storage in shale
journal, June 2016


Slip flow in porous media
journal, June 2016


Fast mass transport of oil and supercritical carbon dioxide through organic nanopores in shale
journal, October 2016


Effective Correlation of Apparent Gas Permeability in Tight Porous Media
journal, July 2009


A model for multiple transport mechanisms through nanopores of shale gas reservoirs with real gas effect–adsorption-mechanic coupling
journal, February 2016


Impact of Adsorption on Gas Transport in Nanopores
journal, March 2016

  • Wu, Tianhao; Zhang, Dongxiao
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep23629

Subcontinuum mass transport of condensed hydrocarbons in nanoporous media
journal, April 2015

  • Falk, Kerstin; Coasne, Benoit; Pellenq, Roland
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms7949

Modeling the density profiles and adsorption of pure and mixture hydrocarbons in shales
journal, June 2016


Measurement of gas storage processes in shale and of the molecular diffusion coefficient in kerogen
journal, March 2014

  • Etminan, S. Reza; Javadpour, Farzam; Maini, Brij B.
  • International Journal of Coal Geology, Vol. 123
  • DOI: 10.1016/j.coal.2013.10.007

High-pressure adsorption of gases on shales: Measurements and modeling
journal, June 2012

  • Chareonsuppanimit, Pongtorn; Mohammad, Sayeed A.; Robinson, Robert L.
  • International Journal of Coal Geology, Vol. 95
  • DOI: 10.1016/j.coal.2012.02.005

Nanoscale Gas Flow in Shale Gas Sediments
journal, October 2007

  • Javadpour, F.; Fisher, D.; Unsworth, M.
  • Journal of Canadian Petroleum Technology, Vol. 46, Issue 10
  • DOI: 10.2118/07-10-06

Gas flow in ultra-tight shale strata
journal, September 2012

  • Darabi, Hamed; Ettehad, A.; Javadpour, F.
  • Journal of Fluid Mechanics, Vol. 710
  • DOI: 10.1017/jfm.2012.424

Model for Surface Diffusion of Adsorbed Gas in Nanopores of Shale Gas Reservoirs
journal, March 2015

  • Wu, Keliu; Li, Xiangfang; Wang, Chenchen
  • Industrial & Engineering Chemistry Research, Vol. 54, Issue 12
  • DOI: 10.1021/ie504030v

The Viscosity of Natural Gases
journal, August 1966

  • Lee, Anthony L.; Gonzalez, Mario H.; Eakin, Bertram E.
  • Journal of Petroleum Technology, Vol. 18, Issue 08
  • DOI: 10.2118/1340-PA

Analytical analysis of gas diffusion into non-circular pores of shale organic matter
journal, April 2017

  • Mehrabi, Mehran; Javadpour, Farzam; Sepehrnoori, Kamy
  • Journal of Fluid Mechanics, Vol. 819
  • DOI: 10.1017/jfm.2017.180

Thermodynamic Modeling of Phase Behavior in Shale Media
journal, February 2016

  • Jin, Zhehui; Firoozabadi, Abbas
  • SPE Journal, Vol. 21, Issue 01
  • DOI: 10.2118/176015-PA

Nanopores and Apparent Permeability of Gas Flow in Mudrocks (Shales and Siltstone)
journal, August 2009

  • Javadpour, F.
  • Journal of Canadian Petroleum Technology, Vol. 48, Issue 08
  • DOI: 10.2118/09-08-16-DA