Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction

A smaller diameter conduit pointing at 12 o'clock position is typically hot-tapped to a horizontal laying production header in offshore platform to tap produced gas for downstream process train. This geometric feature is commonly known as T-junction. The nature of multiphase fluid splitting at...

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Main Authors: Pao, W., Hon, L., Saieed, A., Ban, S.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19936 /
Published: Institute of Physics Publishing 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034230248&doi=10.1088%2f1742-6596%2f908%2f1%2f012037&partnerID=40&md5=273f6f6a1acd2639940d36847345d573
http://eprints.utp.edu.my/19936/
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spelling utp-eprints.199362018-04-22T13:46:42Z Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction Pao, W. Hon, L. Saieed, A. Ban, S. A smaller diameter conduit pointing at 12 o'clock position is typically hot-tapped to a horizontal laying production header in offshore platform to tap produced gas for downstream process train. This geometric feature is commonly known as T-junction. The nature of multiphase fluid splitting at the T-junction is a major operational challenge due to unpredictable production environment. Often, excessive liquid carryover occurs in the T-junction, leading to complete platform trip and halt production. This is because the downstream process train is not designed to handle excessive liquid. The objective of this research is to quantify the effect of different diameter ratio on phase separation efficiency in T-junction. The liquid carryover is modelled as two-phase air-water flow using Eulerian Mixture Model coupled with Volume of Fluid Method to mimic the slug flow in the main pipe. The focus in this paper is 0.0254 m (1 inch) diameter horizontal main arm and vertical branch arm with diameter ratio of 1.0, 0.5 and 0.3. The present research narrowed the investigation to only slug flow regime using Baker's map as reference. The investigation found that, contrary to common believe, smaller diameter ratio T-junction perform worse than larger diameter ratio T-junction. © 2017 Published under licence by IOP Publishing Ltd. Institute of Physics Publishing 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034230248&doi=10.1088%2f1742-6596%2f908%2f1%2f012037&partnerID=40&md5=273f6f6a1acd2639940d36847345d573 Pao, W. and Hon, L. and Saieed, A. and Ban, S. (2017) Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction. Journal of Physics: Conference Series, 908 (1). http://eprints.utp.edu.my/19936/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description A smaller diameter conduit pointing at 12 o'clock position is typically hot-tapped to a horizontal laying production header in offshore platform to tap produced gas for downstream process train. This geometric feature is commonly known as T-junction. The nature of multiphase fluid splitting at the T-junction is a major operational challenge due to unpredictable production environment. Often, excessive liquid carryover occurs in the T-junction, leading to complete platform trip and halt production. This is because the downstream process train is not designed to handle excessive liquid. The objective of this research is to quantify the effect of different diameter ratio on phase separation efficiency in T-junction. The liquid carryover is modelled as two-phase air-water flow using Eulerian Mixture Model coupled with Volume of Fluid Method to mimic the slug flow in the main pipe. The focus in this paper is 0.0254 m (1 inch) diameter horizontal main arm and vertical branch arm with diameter ratio of 1.0, 0.5 and 0.3. The present research narrowed the investigation to only slug flow regime using Baker's map as reference. The investigation found that, contrary to common believe, smaller diameter ratio T-junction perform worse than larger diameter ratio T-junction. © 2017 Published under licence by IOP Publishing Ltd.
format Article
author Pao, W.
Hon, L.
Saieed, A.
Ban, S.
spellingShingle Pao, W.
Hon, L.
Saieed, A.
Ban, S.
Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction
author_sort Pao, W.
title Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction
title_short Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction
title_full Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction
title_fullStr Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction
title_full_unstemmed Numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio T-junction
title_sort numerical simulation of two-phase slug flow with liquid carryover in different diameter ratio t-junction
publisher Institute of Physics Publishing
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034230248&doi=10.1088%2f1742-6596%2f908%2f1%2f012037&partnerID=40&md5=273f6f6a1acd2639940d36847345d573
http://eprints.utp.edu.my/19936/
_version_ 1741196288505937920
score 11.62408

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