Novel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfaces

Abstract Wettability alteration of carbonate reservoirs from oil-wet to water-wet is an important method to increase the efficiency of oil recovery. Interaction between surfactants and polymers can enhance the effectiveness of surfactants in EOR applications. In this study, the interaction of polyet...

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Main Authors: Nasim Heydari, Mahdi Asgari, Narjes Shojai Kaveh, Zahra Fakhroueian
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2018-10-01
Series:Petroleum Science
Subjects:
Online Access:http://link.springer.com/article/10.1007/s12182-018-0260-z
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author Nasim Heydari
Mahdi Asgari
Narjes Shojai Kaveh
Zahra Fakhroueian
author_facet Nasim Heydari
Mahdi Asgari
Narjes Shojai Kaveh
Zahra Fakhroueian
author_sort Nasim Heydari
collection DOAJ
description Abstract Wettability alteration of carbonate reservoirs from oil-wet to water-wet is an important method to increase the efficiency of oil recovery. Interaction between surfactants and polymers can enhance the effectiveness of surfactants in EOR applications. In this study, the interaction of polyethylene glycol (PEG) with an ionic surfactant, sodium dodecyl sulphate (SDS), is evaluated on an oil-wet carbonate rock surface by using contact angle measurements. The results reveal that wettability alteration of carbonate rocks is achieved through PEG/SDS interaction on the rock surface above a critical aggregation concentration (CAC). The behaviour of PEG/SDS aqueous solutions is evaluated using surface and interfacial tension measurements. Furthermore, the effect of PEG and SDS concentrations and impact of electrolyte addition on PEG/SDS interaction are investigated. It is shown that electrolyte (NaCl) can effectively decrease the CAC values and accordingly initiate the wettability alteration of rocks. Moreover, in a constant SDS concentration, the addition of NaCl leads to a reduction in the contact angle, which can also be obtained by increasing the aging time, temperature and pre-adsorption of PEG on the rock surface.
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spelling doaj.art-9d70413a983b4f978e3d40740e45fd552022-12-22T01:39:50ZengKeAi Communications Co., Ltd.Petroleum Science1672-51071995-82262018-10-0116231832710.1007/s12182-018-0260-zNovel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfacesNasim Heydari0Mahdi Asgari1Narjes Shojai Kaveh2Zahra Fakhroueian3School of Chemical Engineering, Iran University of Science and TechnologySchool of Chemical Engineering, College of Engineering, University of TehranDepartment of Geoscience and Engineering, Delft University of TechnologySchool of Chemical Engineering, College of Engineering, University of TehranAbstract Wettability alteration of carbonate reservoirs from oil-wet to water-wet is an important method to increase the efficiency of oil recovery. Interaction between surfactants and polymers can enhance the effectiveness of surfactants in EOR applications. In this study, the interaction of polyethylene glycol (PEG) with an ionic surfactant, sodium dodecyl sulphate (SDS), is evaluated on an oil-wet carbonate rock surface by using contact angle measurements. The results reveal that wettability alteration of carbonate rocks is achieved through PEG/SDS interaction on the rock surface above a critical aggregation concentration (CAC). The behaviour of PEG/SDS aqueous solutions is evaluated using surface and interfacial tension measurements. Furthermore, the effect of PEG and SDS concentrations and impact of electrolyte addition on PEG/SDS interaction are investigated. It is shown that electrolyte (NaCl) can effectively decrease the CAC values and accordingly initiate the wettability alteration of rocks. Moreover, in a constant SDS concentration, the addition of NaCl leads to a reduction in the contact angle, which can also be obtained by increasing the aging time, temperature and pre-adsorption of PEG on the rock surface.http://link.springer.com/article/10.1007/s12182-018-0260-zSodium dodecyl sulphate (SDS)Polyethylene glycol (PEG)Wettability alterationContact angleCritical aggregation concentrationCarbonate surface
spellingShingle Nasim Heydari
Mahdi Asgari
Narjes Shojai Kaveh
Zahra Fakhroueian
Novel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfaces
Petroleum Science
Sodium dodecyl sulphate (SDS)
Polyethylene glycol (PEG)
Wettability alteration
Contact angle
Critical aggregation concentration
Carbonate surface
title Novel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfaces
title_full Novel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfaces
title_fullStr Novel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfaces
title_full_unstemmed Novel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfaces
title_short Novel application of PEG/SDS interaction as a wettability modifier of hydrophobic carbonate surfaces
title_sort novel application of peg sds interaction as a wettability modifier of hydrophobic carbonate surfaces
topic Sodium dodecyl sulphate (SDS)
Polyethylene glycol (PEG)
Wettability alteration
Contact angle
Critical aggregation concentration
Carbonate surface
url http://link.springer.com/article/10.1007/s12182-018-0260-z
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