eprintid: 139
rev_number: 4
eprint_status: archive
userid: 5
dir: disk0/00/00/01/39
datestamp: 2008-05-20
lastmod: 2015-05-29 19:48:06
status_changed: 2009-04-08 16:54:45
type: report
metadata_visibility: show
item_issues_count: 0
creators_name: Brown, Melvin
creators_name: Dellar, Paul
contributors_name: Schulkes, Ruben
contributors_name: Bauer, Robert
contributors_name: Baxter, Steven
contributors_name: Bell, Christopher
contributors_name: Booth, Richard
contributors_name: Byatt-Smith, John
contributors_name: Carter, Rebecca
contributors_name: Dellar, Paul
contributors_name: Fozard, John
contributors_name: Gajjar, Pragnesh
contributors_name: Garratt, John
contributors_name: Hold, Andriy
contributors_name: McBurnie, Sarah
contributors_name: Novikovs, Andrejs
contributors_name: Ockendon, John
contributors_name: Patel, Dharesh
contributors_name: Stewart, Peter
contributors_name: Tilley, Burt
contributors_name: Vanden-Broeck, Jean-Marc
title: Gas entrainment at a propagating slug front
ispublished: pub
subjects: utilities
studygroups: esgi59
companyname: Hydro Oil & Energy
full_text_status: public
problem_statement: When oil is produced, the reservoir pressure decreases and the oil flow rate
decreases in proportion to the decreasing pressure difference between the
reservoir and the processing facility. At low oil flow rates, a well becomes
unstable and this leads to reduced production and processing problems. The
formation of slug flow in pipelines is a manifestation of such instability. The
front of a slug may be regarded as a propagating, continuously breaking wave,
which continuously entrains gas. The Study Group was asked to explore
alternative or new ways to treat the gas entrainment problem, to improve
understanding of physical processes governing entrainment and to suggest
models for the various phenomena. The Study Group obtained mathematical
models of slug propagation in horizontal and inclined pipelines, examined
possible models of gas entrainment, and outlined an approach to modelling
the onset of slug flow. This report summarises that work, and it suggests
directions for further investigation.
date: 2007-06-05
date_type: published
pages: 19
citation:   Brown, Melvin and Dellar, Paul  (2007) Gas entrainment at a propagating slug front.  [Study Group Report]     
document_url: http://miis.maths.ox.ac.uk/miis/139/1/slugflow.pdf