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Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities

Gas flooding is one of the most widely applied EOR methods in field applications, but viscous fingering and gravity segregation are the main issues in gas displacing. To mitigate these problems, water alternating gas injection (WAG) has been used. Another useful proposal is applying foams to improve...

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Main Author: Alshakshouki, Nihad Hamad Faraj
Format: Thesis
Language:English
Published: 2022
Subjects:
Q Science (General)
Online Access:http://eprints.utm.my/id/eprint/102511/1/NihadHamadFarajMSChE2022.pdf
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spelling my.utm.1025112023-09-03T06:33:14Z http://eprints.utm.my/id/eprint/102511/ Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities Alshakshouki, Nihad Hamad Faraj Q Science (General) Gas flooding is one of the most widely applied EOR methods in field applications, but viscous fingering and gravity segregation are the main issues in gas displacing. To mitigate these problems, water alternating gas injection (WAG) has been used. Another useful proposal is applying foams to improve sweep efficiency because of their high viscosity and mobility. Surfactants have historically been used in field applications to reinforce foam. One of the most important tasks in petroleum engineering is the characterization of the properties of the reservoirs for the application of the method that will lead to a greater oil recovery factor. Among the different tertiary recovery methods with great potential for improving the oil recovery factor, foam injection can be mentioned. In this study, comprehensive laboratory research explored the performance of CO2 foam with anionic and nonionic surfactants. The objectives were to determine the critical micellar concentration (CMC) of SDS and TX100 surfactants and to investigate the effect of varying surfactants salinities and ratios on CO2-FOAM stability. The concentrations of SDS and TX100 were considered in a range of (0.01-0.4wt%). Furthermore, the salinities of SDS and TX100 were fixed at (25000, 30000, 35000, 40000, and 45000 ppm) during the stability tests. This study's methodology included several laboratory tests divided into two sections. In the first section, the surface tension of (SDS) and (TX-100) surfactants was measured to estimate CMC. The second section was to consider the behavior of foam stability in various salinity and ratios of surfactant solutions. The results showed that the CMC for SDS and TX100 surfactants was equal to 0.05 and 0.02 wt%, respectively. Moreover, CO2 foam stability can be improved by increasing the salinity of surfactants solution. SDS at 35000 ppm salinity was the best for CO2 foam stability, which was stable for 8 minutes. 2022 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/102511/1/NihadHamadFarajMSChE2022.pdf Alshakshouki, Nihad Hamad Faraj (2022) Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities. Masters thesis, Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:152252
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic Q Science (General)
spellingShingle Q Science (General)
Alshakshouki, Nihad Hamad Faraj
Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities
description Gas flooding is one of the most widely applied EOR methods in field applications, but viscous fingering and gravity segregation are the main issues in gas displacing. To mitigate these problems, water alternating gas injection (WAG) has been used. Another useful proposal is applying foams to improve sweep efficiency because of their high viscosity and mobility. Surfactants have historically been used in field applications to reinforce foam. One of the most important tasks in petroleum engineering is the characterization of the properties of the reservoirs for the application of the method that will lead to a greater oil recovery factor. Among the different tertiary recovery methods with great potential for improving the oil recovery factor, foam injection can be mentioned. In this study, comprehensive laboratory research explored the performance of CO2 foam with anionic and nonionic surfactants. The objectives were to determine the critical micellar concentration (CMC) of SDS and TX100 surfactants and to investigate the effect of varying surfactants salinities and ratios on CO2-FOAM stability. The concentrations of SDS and TX100 were considered in a range of (0.01-0.4wt%). Furthermore, the salinities of SDS and TX100 were fixed at (25000, 30000, 35000, 40000, and 45000 ppm) during the stability tests. This study's methodology included several laboratory tests divided into two sections. In the first section, the surface tension of (SDS) and (TX-100) surfactants was measured to estimate CMC. The second section was to consider the behavior of foam stability in various salinity and ratios of surfactant solutions. The results showed that the CMC for SDS and TX100 surfactants was equal to 0.05 and 0.02 wt%, respectively. Moreover, CO2 foam stability can be improved by increasing the salinity of surfactants solution. SDS at 35000 ppm salinity was the best for CO2 foam stability, which was stable for 8 minutes.
format Thesis
author Alshakshouki, Nihad Hamad Faraj
author_facet Alshakshouki, Nihad Hamad Faraj
author_sort Alshakshouki, Nihad Hamad Faraj
title Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities
title_short Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities
title_full Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities
title_fullStr Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities
title_full_unstemmed Investigation of CO2-foam stability with anionic and nonionic surfctants at different salinities
title_sort investigation of co2-foam stability with anionic and nonionic surfctants at different salinities
publishDate 2022
url http://eprints.utm.my/id/eprint/102511/1/NihadHamadFarajMSChE2022.pdf
http://eprints.utm.my/id/eprint/102511/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:152252
_version_ 1776247035344715776
score 13.211869

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