Oil recovery performances of surfactant solutions by capillary imbibition

Babadagli, Tayfun; Boluk, Yaman

doi:10.1016/j.jcis.2004.08.149

Cited by 35 publications

(18 citation statements)

References 28 publications

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“…Therefore, laboratory characterization of surfactants is one of the major steps before implementing EOR techniques. The main aim of the EOR process is to increase the capillary number by reducing the IFT between water and oil (Babadagli and Boluk 2005). As an effective candidate for wettability alteration, surfactants also help to contribute significantly to the production characteristics of oil during chemical flooding (Zhang et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Due to the interrelationship between IFT and capillary number, interfacial phenomena of surfactants are studied in laboratory to screen the surfactants with respect to their activities. It has been reported the surface activities of several surface active agents and their mixtures play an important role in EOR (Babadagli 2005;Babadagli and Boluk 2005;El-Batanoney et al 1999;Gong et al 2005;Zhang et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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Enhanced oil recovery by nonionic surfactants considering micellization, surface, and foaming properties

Bera¹,

Mandal

Belhaj³

et al. 2017

Pet. Sci.

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Surfactants for enhanced oil recovery are important to study due to their special characteristics like foam generation, lowering interfacial tension between oleic and aqueous phases, and wettability alteration of reservoir rock surfaces. Foam is a good mobility control agent in enhanced oil recovery for improving the mobility ratio. In the present work, the foaming behavior of three nonionic ethoxylated surfactants, namely Tergitol 15-S-7, Tergitol 15-S-9, and Tergitol 15-S-12, was studied experimentally. Among the surfactants, Tergitol 15-S-12 shows the highest foamability. The effect of NaCl concentration and synthetic seawater on foaming behavior of the surfactants was investigated by the test-tube shaking method. The critical micelle concentrations of aqueous solutions of the different nonionic surfactants were measured at 300 K. It was found that the critical micelle concentrations of all surfactants also increased with increasing ethylene oxide number. Dynamic light scattering experiments were performed to investigate the micelle sizes of the surfactants at their respective critical micelle concentrations. Core flooding experiments were carried out in sand packs using the surfactant solutions. It was found that 22% additional oil was recovered in the case of all the surfactants over secondary water flooding. Tergitol 15-S-12 exhibited the maximum additional oil recovery which is more than 26% after water injection.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced oil recovery by nonionic surfactants considering micellization, surface, and foaming properties

Bera¹,

Mandal

Belhaj³

et al. 2017

Pet. Sci.

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“…However, it is possible to obtain higher recovery factors by applying advanced techniques. Among them, there is a method in which chemical formulations containing surfactants are injected through the formation (Jamaloei, 2009;Iglauer et al, 2010;Babadagli, Al-Bemani, Boukadi & Al Maamari, 2005;Babadagli & Boluk, 2005;El-Batanoney, AbdelMoghny & Ramzi, 1999;Levitt et al, 2009). This method is called Chemical Enhanced Oil Recovery (CEOR) (Sheng, 2011).…”

Section: Introductionmentioning

confidence: 99%

Petroleum sulfonates preparation and evaluation for chemical enhanced oil recovery in Colombian oil fields

Pachón-Contreras

Rojas-Ruíz²,

Rondón-Antón³

et al. 2014

CT&F Cienc. Tecnol. Futuro

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A n efficient method for preparing petroleum sulfonates is described in this article. Petroleum sulfonates were prepared from five different refinery cuts and characterized by infrarred and ultra-violet spectroscopy. Their hydrophilic-lipophilic relative afinity was assessed by performing phase behavior scans. The prepared surfactants were evaluated in formulations for Chemical Enhanced Oil Recovery (CEOR), showing that, under the evaluation conditions, the solubilization ratios increase with the structural similarity between the crude oil and the surfactant molecules. It was confirmed that, when used as secondary surfactants, the petroleum sulfonates here prepared allow to achieve relatively high solubilization parameters. ABSTRACT PREPARACIÓN DE SULFONATOS DE PETRÓLEO Y EVALUACIÓN PARA RECOBRO QUÍMICO MEJORADO EN CAMPOS DE PETRÓLEO COLOMBIANOS 56N o presente trabalho é descrito um método eficiente para a preparação de sulfonatos de petróleo. Os sulfonatos de petróleo são preparados a partir de cinco cortes de refinaria diferentes e são caracterizados por espectroscopia de infravermelho e ultravioleta. Sua afinidade relativa hidrófilica lipófilica foi avaliada mediante a realização de comportamentos de fase. Os tensoativos preparados foram avaliados em formulações para Recuperação Química Melhorada demonstrando que, sob as condições de avaliação, as relações de solubilização aumentam com a semelhança estrutural que existe entre o petróleo cru e as moléculas do surfactante utilizado. Confirma-se que, quando são utilizados como surfactantes secundários, os sulfonatos de petróleo aqui preparados permitem atingir parâmetros de solubilização relativamente elevados. E n el presente trabajo se describe un método eficiente para la preparación de sulfonatos de petróleo. Los sulfonatos de petróleo se prepararon a partir de cinco cortes de refinería diferentes y se caracterizaron por espectroscopía de infrarrojo y ultravioleta. Su afinidad relativa hidrófilica lipófilica se evaluó mediante la realización de comportamientos de fase. Los tensoactivos preparados se evaluaron en formulaciones para Recobro Químico Mejorado demostrando que, bajo las condiciones de evaluación, las relaciones de solubilización aumentan con la similitud estructural que existe entre el petróleo crudo y las moléculas del surfactante utilizado. Se confirma que, cuando se utilizan como surfactantes secundarios, los sulfonatos de petróleo aquí preparados permiten alcanzar parámetros de solubilización relativamente elevados.Palabras clave: Surfactantes, Sulfonación, Síntesis química, Reacción de sulfonación, Recobro mejorado de petróleo, Caracterización, Espectroscopia infrarroja, Espectroscopia de luz ultravioleta.Palavras-chave: Surfactante, Sulfonação, Síntese química, Reação de sulfonação, Recuperação melhorada de petróleo, Caracterização, Espectropia de infravermelho, Espectropia de luz ultravioleta.

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“…The solubility of the surfactant in oil and water (hydrophilic and hydrophobic groups) and the type of emulsion, if exists, need to be taken into account. Recently, Babadagli and Boluk [23] reported that the solubility of surfactant solutions characterized by the organic and inorganic values of them (or HLB number) is related to the ultimate oil recovery by the capillary imbibition of surfactant solutions. They correlated the ultimate oil recovery to the organic and inorganic values of the surfactants used in the experiments for the cases with and without initial water.…”

Section: Chalkmentioning

confidence: 99%

Analysis of Oil Recovery by Spontaneous Imbibition of Surfactant Solution

Babadagli

2005

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Analyse de la récupération d'huile par imbibition spontanée d'une solution de surfactant -Selon le type de roche et d'huile, une réduction de la tension interfaciale (IFT) par l'addition d'un agent tensio-actif à la saumure peut augmenter la récupération capillaire avec l'appui du drainage dans les réservoirs naturellement fracturés (NFR). Cet article vise à identifier et analyser les mécanismes de récupération et à calculer les effets de mise à l'échelle pour la récupération d'huile de différents types de roche par l'imbibition (spontanée) capillaire d'une solution d'agent tensio-actif.Des essais en laboratoire ont été exécutés en utilisant quatre types de roche représentatives des matrices de réservoir d'une NFR (grès, calcaire, calcaire dolomitique et craie). L'échantillon de grès était couvert en surface pour créer une barrière, imposant l'interaction uniquement à contre-courant. Une grande variété d'huiles (bruts légers et lourds, kérosène, et huile à moteur) a été choisie comme phase oléique. Différents types (non ioniques et anioniques) et concentrations des agents tensio-actifs ont été employés comme phase aqueuse avec une saumure comme situation de référence. Les échantillons entièrement saturés d'huile (S wi = 0) ont été exposés à l'imbibition capillaire statique et la récupération suivie en fonction du temps. Quelques expériences sur les craies ont été répétées en utilisant les échantillons pré-saturés (S wi > 0) afin de clarifier les changements des caractéristiques capillaires d'imbibition de la roche.Les changements (positifs ou négatifs) du taux de récupération et de la récupération finale, comparés à l'imbibition par la saumure, ont été évalués en fonction des types de roche, d'agent tensio-actif et de pétrole. On a observé, pour certains types de roche, que la récupération par imbibition par la solution d'agent tensioactif est exclusivement contrôlée par la concentration de l'agent tensio-actif. La différence dans le taux de récupération et de la récupération finale entre faible et forte IFT pourraient être dus non seulement au changement de l'IFT mais également au changement de la mouillabilité et de l'absorption, qui pourraient changer avec le type de roche. Ceci a été également analysé en utilisant la forme des courbes qui indique l'effet de la capillarité sur la récupération et le type d'interaction, c'est-à-dire, co-ou contre-courant.En plus de l'analyse qualitative mentionnée ci-dessus, les courbes de récupération ont été évaluées pour la mise à l'échelle. Des descriptions existantes sans dimension ont été examinées. L'exercice de mise à l'échelle aide à identifier si la récupération est dirigée par des forces de pesanteur ou de capillarité et pour clarifier le type d'interaction, co-ou contre-courant ou les deux. Les récupérations finales ont été corrélées avec le nombre inverse de Bond, en utilisant vingt-cinq cas couvrant différentes combinaisons de quatre types de roche, quatre huiles et quatre types d'agent tensio-actif. Abstract -Analysis of Oil Recovery by Spontaneous Imbibi...

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Oil recovery performances of surfactant solutions by capillary imbibition

Cited by 35 publications

References 28 publications

Enhanced oil recovery by nonionic surfactants considering micellization, surface, and foaming properties

Enhanced oil recovery by nonionic surfactants considering micellization, surface, and foaming properties

Petroleum sulfonates preparation and evaluation for chemical enhanced oil recovery in Colombian oil fields

Analysis of Oil Recovery by Spontaneous Imbibition of Surfactant Solution

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