A simple approach to identify the proper relative permeability model

Relative permeability is one of the crucial input data for any reservoir simulation study. Experimentally, relative permeability tests can be executed by either steady state or unsteady-state flow procedures. Steady-state procedures have the advantage of easy calculations and the drawback of tedious...

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Main Author: Al-Mossawy, M.I.
Format: Conference or Workshop Item
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.23576 /
Published: Institute of Physics Publishing 2019
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067876084&doi=10.1088%2f1757-899X%2f495%2f1%2f012074&partnerID=40&md5=13720868fb49b3d31a8fdac16b2b9e84
http://eprints.utp.edu.my/23576/
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spelling utp-eprints.235762021-08-19T07:56:29Z A simple approach to identify the proper relative permeability model Al-Mossawy, M.I. Relative permeability is one of the crucial input data for any reservoir simulation study. Experimentally, relative permeability tests can be executed by either steady state or unsteady-state flow procedures. Steady-state procedures have the advantage of easy calculations and the drawback of tedious long processes. Unsteady-state procedures take less time but need complex calculations. To shorten calculations of unsteady-state procedures, various models have been developed based on measuring permeability and saturation at initial and final stages of the flow process. This paper presents a simple approach to assess unsteady-state relative-permeability models for simulating a certain fluid displacement process. The Approach includes comparing the experimental average water saturation at the moment of breakthrough ((Swavg)Bth) with modelling (Swavg)Bth that can be estimated from the fractional-flow curve. The presented approach aims to identify the proper relative permeability model before conducting full reservoir simulation studies. This will improve the reservoir simulation process and shorten the history matching. The approach has been applied on six experiments of displacing brine by nitrogen gas in core samples of Berea sandstone. The results shown that two of the displacing experiments can be simulated with MBC model, one experiment can be simulated by Corey's model, and one experiment can be simulated by Kam and Rossen model with error percent less than 1. Modelling of the other two experiments gave error percent greater than 1 for MBC, Corey, Pirson, and Kam and Rossen models. © Published under licence by IOP Publishing Ltd. Institute of Physics Publishing 2019 Conference or Workshop Item NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067876084&doi=10.1088%2f1757-899X%2f495%2f1%2f012074&partnerID=40&md5=13720868fb49b3d31a8fdac16b2b9e84 Al-Mossawy, M.I. (2019) A simple approach to identify the proper relative permeability model. In: UNSPECIFIED. http://eprints.utp.edu.my/23576/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Relative permeability is one of the crucial input data for any reservoir simulation study. Experimentally, relative permeability tests can be executed by either steady state or unsteady-state flow procedures. Steady-state procedures have the advantage of easy calculations and the drawback of tedious long processes. Unsteady-state procedures take less time but need complex calculations. To shorten calculations of unsteady-state procedures, various models have been developed based on measuring permeability and saturation at initial and final stages of the flow process. This paper presents a simple approach to assess unsteady-state relative-permeability models for simulating a certain fluid displacement process. The Approach includes comparing the experimental average water saturation at the moment of breakthrough ((Swavg)Bth) with modelling (Swavg)Bth that can be estimated from the fractional-flow curve. The presented approach aims to identify the proper relative permeability model before conducting full reservoir simulation studies. This will improve the reservoir simulation process and shorten the history matching. The approach has been applied on six experiments of displacing brine by nitrogen gas in core samples of Berea sandstone. The results shown that two of the displacing experiments can be simulated with MBC model, one experiment can be simulated by Corey's model, and one experiment can be simulated by Kam and Rossen model with error percent less than 1. Modelling of the other two experiments gave error percent greater than 1 for MBC, Corey, Pirson, and Kam and Rossen models. © Published under licence by IOP Publishing Ltd.
format Conference or Workshop Item
author Al-Mossawy, M.I.
spellingShingle Al-Mossawy, M.I.
A simple approach to identify the proper relative permeability model
author_sort Al-Mossawy, M.I.
title A simple approach to identify the proper relative permeability model
title_short A simple approach to identify the proper relative permeability model
title_full A simple approach to identify the proper relative permeability model
title_fullStr A simple approach to identify the proper relative permeability model
title_full_unstemmed A simple approach to identify the proper relative permeability model
title_sort simple approach to identify the proper relative permeability model
publisher Institute of Physics Publishing
publishDate 2019
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067876084&doi=10.1088%2f1757-899X%2f495%2f1%2f012074&partnerID=40&md5=13720868fb49b3d31a8fdac16b2b9e84
http://eprints.utp.edu.my/23576/
_version_ 1741196697828065280
score 11.62408

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