Waterflooding Performance in Inclined Communicating Stratified Reservoirs

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 f...

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Main Author: El-Khatib, Noaman A.F.
Format: Conference or Workshop Item
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.7692 /
Published: 2010
Subjects:
TN Mining engineering. Metallurgy
Online Access: http://eprints.utp.edu.my/7692/1/SPE-126344-MS-P%5B1%5D.pdf
http://www.spe.org/index.php
http://eprints.utp.edu.my/7692/
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spelling utp-eprints.76922017-03-20T07:17:28Z Waterflooding Performance in Inclined Communicating Stratified Reservoirs El-Khatib, Noaman A.F. TN Mining engineering. Metallurgy 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 2010-02-14 Conference or Workshop Item NonPeerReviewed application/pdf http://eprints.utp.edu.my/7692/1/SPE-126344-MS-P%5B1%5D.pdf http://www.spe.org/index.php El-Khatib, Noaman A.F. (2010) Waterflooding Performance in Inclined Communicating Stratified Reservoirs. In: SPE North Africa Technical Conference and Exhibition held in Cairo, Egypt, 14–17 February 2010., 14 - 17 February 2010, Cairo , Egypt. http://eprints.utp.edu.my/7692/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
topic TN Mining engineering. Metallurgy
spellingShingle TN Mining engineering. Metallurgy
El-Khatib, Noaman A.F.
Waterflooding Performance in Inclined Communicating Stratified Reservoirs
description 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
format Conference or Workshop Item
author El-Khatib, Noaman A.F.
author_sort El-Khatib, Noaman A.F.
title Waterflooding Performance in Inclined Communicating Stratified Reservoirs
title_short Waterflooding Performance in Inclined Communicating Stratified Reservoirs
title_full Waterflooding Performance in Inclined Communicating Stratified Reservoirs
title_fullStr Waterflooding Performance in Inclined Communicating Stratified Reservoirs
title_full_unstemmed Waterflooding Performance in Inclined Communicating Stratified Reservoirs
title_sort waterflooding performance in inclined communicating stratified reservoirs
publishDate 2010
url http://eprints.utp.edu.my/7692/1/SPE-126344-MS-P%5B1%5D.pdf
http://www.spe.org/index.php
http://eprints.utp.edu.my/7692/
_version_ 1741196105253650432
score 11.62408

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