eprintid: 3689
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/36/89
datestamp: 2023-11-09 15:51:57
lastmod: 2023-11-09 15:51:57
status_changed: 2023-11-09 15:47:24
type: article
metadata_visibility: show
creators_name: Al-Mossawy, M.I.
creators_name: Demiral, B.
creators_name: Raja, D.M.A.
title: A relative permeability model to derive fractional-flow functions of water-alternating-gas and surfactant-alternating-gas foam core-floods
ispublished: pub
keywords: density; enhanced oil recovery; flow modeling; fluid injection; mobility; permeability; porous medium; reservoir flooding
note: cited By 9
abstract: Foam is used in enhanced oil recovery to improve the sweep efficiency by controlling the gas mobility. The surfactant-alternating-gas (SAG) foam process is used as an alternative to the water-alternating-gas (WAG) injection. In the WAG technique, the high mobility and the low density of the gas lead the gas to flow in channels through the high permeability zones of the reservoir and to rise to the top of the reservoir by gravity segregation. As a result, the sweep efficiency decreases and there will be more residual oil in the reservoir. The foam can trap the gas in liquid films and reduces the gas mobility. The fractional-flow method describes the physics of immiscible displacements in porous media. Finding the water fractional flow theoretically or experimentally as a function of the water saturation represents the heart of this method. The relative permeability function is the conventional way to derive the fractional-flow function. This study presents an improved relative permeability model to derive the fractional-flow functions for WAG and SAG foam core-floods. The SAG flow regimes are characterized into weak foam, strong foam without a shock front and strong foam with a shock front. © 2013 Sinopec Geophysical Research Institute.
date: 2013
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876497835&doi=10.1088%2f1742-2132%2f10%2f2%2f025010&partnerID=40&md5=c540d3e9260fe179ee9f8dc5c69b1793
id_number: 10.1088/1742-2132/10/2/025010
full_text_status: none
publication: Journal of Geophysics and Engineering
volume: 10
number: 2
refereed: TRUE
issn: 17422132
citation:   Al-Mossawy, M.I. and Demiral, B. and Raja, D.M.A.  (2013) A relative permeability model to derive fractional-flow functions of water-alternating-gas and surfactant-alternating-gas foam core-floods.  Journal of Geophysics and Engineering, 10 (2).   ISSN 17422132