eprintid: 9827
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/98/27
datestamp: 2023-11-09 16:36:28
lastmod: 2023-11-09 16:36:28
status_changed: 2023-11-09 16:29:55
type: article
metadata_visibility: show
creators_name: Saieed, A.
creators_name: Pao, W.
creators_name: Hewakandamby, B.
creators_name: Azzopardi, B.J.
creators_name: Wood, D.A.
creators_name: Ali, H.M.
title: Experimental investigation on the effect of diameter ratio on two-phase slug flow separation in a T-Junction
ispublished: pub
keywords: Drilling platforms; Flow separation; Intersections; Liquids, Diameter ratio; Downstream equipment; Experimental investigations; Gas-liquid separation; Liquid carryovers; Off shore platforms; Slug flow; T junctions, Phase separation, diameter; experimental study; gas flow; multiphase flow; pipeline; separation; slug flow; two phase flow
note: cited By 21
abstract: T-junctions are often used in offshore platforms to partially separate gas from produced fluids. Poorly designed T-junctions frequently produce very high liquid (oil and/or water) carryovers, causing major issues to the downstream equipment train which is not designed to handle excessive liquid. This paper reports the liquid carryover experiments in T-junctions using five different side to main arm diameter ratios under slug flow regime. The obtained phase separation curves can be divided into two component variables; liquid-carryover threshold and peak liquid carryover. The experiments demonstrate that with a decrease in diameter ratio both of these variables decrease. Yet, for superior multiphase flow separation, a high liquid carryover threshold and a low peak liquid carryover are required. Hence, the generally accepted rule that a reduction in diameter ratio improves the phase separation is revealed to be an over-extrapolated statement. The novel findings of this work are: 1) for optimum flow splitting under slug flow conditions, the diameter ratio should be kept between 1 and 0.67, while the diameter ratio 0.67 was found to be most suitable; 2) two correlations were developed for predicting two-phase slug flow separation in different diameter ratio T-junctions. These correlations offer beneficial guidance and clarifications for a number of oil and gas flowline and pipeline applications. © 2018 Elsevier B.V.
date: 2018
publisher: Elsevier B.V.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85048882000&doi=10.1016%2fj.petrol.2018.06.033&partnerID=40&md5=33e5ea29ba2aa5338f91374544f95b6c
id_number: 10.1016/j.petrol.2018.06.033
full_text_status: none
publication: Journal of Petroleum Science and Engineering
volume: 170
pagerange: 139-150
refereed: TRUE
issn: 09204105
citation:   Saieed, A. and Pao, W. and Hewakandamby, B. and Azzopardi, B.J. and Wood, D.A. and Ali, H.M.  (2018) Experimental investigation on the effect of diameter ratio on two-phase slug flow separation in a T-Junction.  Journal of Petroleum Science and Engineering, 170.  pp. 139-150.  ISSN 09204105