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Comparison of temperature-dependent gas adsorption models and their application to shale gas reservoirs

Comparison of temperature-dependent gas adsorption models and their application to shale gas reservoirs
Comparison of temperature-dependent gas adsorption models and their application to shale gas reservoirs
Significant quantities of gas are adsorbed onto the rock matrix in shale gas reservoirs. Accounting for this adsorbed gas in reservoir calculations is key for realistic estimations of gas in place and overall gas production, and later as a target for enhanced gas recovery methods like thermal stimulation. The classical Langmuir isotherm fails to represent gas adsorption at multiple temperatures, thereby making its application in thermal stimulation strategies limited. In this work, several temperature-dependent gas adsorption models were reviewed and grouped further into both temperature-dependent and -independent Langmuir volume. Application of the models to several shale gas data sets obtained from different regions shows minimal differences in the successful prediction of gas adsorption using either the temperature-dependent or -independent Langmuir volume models. However, caution is to be exercised in the choice of models for use in numerical simulation studies when extrapolating to temperatures that might be outside laboratory conditions and for which no data exist. For such cases, use of the models might result in an under- or over-estimation of the volume of adsorbed gas.
0887-0624
4763-4771
Fianu, John
18396909-6a3d-4b3c-807d-9388d15bbb54
Gholinezhad, Jebraeel
79d96efe-2057-4b95-8be1-4d83162c937a
Hassan sayed, Mohamad G
ce323212-f178-4d72-85cf-23cd30605cd8
Fianu, John
18396909-6a3d-4b3c-807d-9388d15bbb54
Gholinezhad, Jebraeel
79d96efe-2057-4b95-8be1-4d83162c937a
Hassan sayed, Mohamad G
ce323212-f178-4d72-85cf-23cd30605cd8

Fianu, John, Gholinezhad, Jebraeel and Hassan sayed, Mohamad G (2018) Comparison of temperature-dependent gas adsorption models and their application to shale gas reservoirs. Energy and Fuels, 32 (4), 4763-4771. (doi:10.1021/acs.energyfuels.8b00017).

Record type: Article

Abstract

Significant quantities of gas are adsorbed onto the rock matrix in shale gas reservoirs. Accounting for this adsorbed gas in reservoir calculations is key for realistic estimations of gas in place and overall gas production, and later as a target for enhanced gas recovery methods like thermal stimulation. The classical Langmuir isotherm fails to represent gas adsorption at multiple temperatures, thereby making its application in thermal stimulation strategies limited. In this work, several temperature-dependent gas adsorption models were reviewed and grouped further into both temperature-dependent and -independent Langmuir volume. Application of the models to several shale gas data sets obtained from different regions shows minimal differences in the successful prediction of gas adsorption using either the temperature-dependent or -independent Langmuir volume models. However, caution is to be exercised in the choice of models for use in numerical simulation studies when extrapolating to temperatures that might be outside laboratory conditions and for which no data exist. For such cases, use of the models might result in an under- or over-estimation of the volume of adsorbed gas.

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More information

Accepted/In Press date: 28 March 2018
e-pub ahead of print date: 2 April 2018
Published date: 19 April 2018

Identifiers

Local EPrints ID: 438243
URI: http://eprints.soton.ac.uk/id/eprint/438243
ISSN: 0887-0624
PURE UUID: f15a69f6-c458-49a1-a956-fec062bbd2ab
ORCID for Mohamad G Hassan sayed: ORCID iD orcid.org/0000-0003-3729-4543

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Date deposited: 04 Mar 2020 17:31
Last modified: 18 Feb 2021 17:41

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Contributors

Author: John Fianu
Author: Jebraeel Gholinezhad
Author: Mohamad G Hassan sayed ORCID iD

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