eprintid: 1397
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/13/97
datestamp: 2023-11-09 15:49:33
lastmod: 2023-11-09 15:49:33
status_changed: 2023-11-09 15:39:39
type: conference_item
metadata_visibility: show
creators_name: El-Khatib, N.A.F.
title: Waterflooding performance in inclined communicating stratified reservoirs
ispublished: pub
keywords: Energy management; Normal distribution; Sailing vessels, Density difference; Gravitational forces; Log-normal distribution; Performance prediction; Permeability distribution; Pseudo relative permeabilities; Stratified reservoirs; Variation coefficient, Oil well flooding
note: cited By 7; Conference of North Africa Technical Conference and Exhibition 2010, NATC 2010 - Energy Management in a Challenging Economy ; Conference Date: 14 February 2010 Through 17 February 2010; Conference Code:80846
abstract: A mathematical model is developed for performance prediction of waterflooding performance in communicating stratified reservoirs with a dip angle from the horizontal. The effect of the gravitational force is reflected by a dimensionless gravity number in the fractional flow formula that accounts for the dip angle and density difference between the displacing and displaced fluids. The developed model is used to estimate the fractional oil recovery, the water cut, the dimensionless time and the injectivity ratio at times of water breakthrough in the successive layers. Eqations are also derived for the case of continuous log-normal permeability distributions characterized by the Dykstra-Parsons variation coefficient VDP or the standard deviation of the log-normal distribution �k. Solutions for inclined communicating stratified systems with log normal permeability distribution were obtained and the performance was compared with that of the horizontal systems. The effects of the gravity number, the mobility ratio and the Dykstra-Parsons permeability variation coefficient, VDP , on the performance are investigated and discussed. The obtained results showed that the gravity effect of the dip angle enhances the performance in terms of delayed water breakthrough, higher fractional oil recovery and lower water cut. This improved performance is more significant in the case of unfavorable mobility ratio.Reservoir dipping does not affect the pseudo relative permeability functions but results in a decrease in the injectivity ratio. Copyright 2010, Society of Petroleum Engineers.
date: 2010
publisher: Society of Petroleum Engineers
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77954102704&doi=10.2523%2f126344-ms&partnerID=40&md5=9587c9ab63683fb99c72d1297c850444
id_number: 10.2523/126344-ms
full_text_status: none
publication: North Africa Technical Conference and Exhibition 2010, NATC 2010 - Energy Management in a Challenging Economy
volume: 1
place_of_pub: Cairo
pagerange: 164-178
refereed: TRUE
isbn: 9781617381072
citation:   El-Khatib, N.A.F.  (2010) Waterflooding performance in inclined communicating stratified reservoirs.  In: UNSPECIFIED.