Experimental investigation of wettability alteration on residual oil saturation using nonionic surfactants: Capillary pressure measurement

Amirpour, Masoud; Shadizadeh, Seyed Reza; Esfandyari, Hamid; Ahmadi, Saeid

doi:10.1016/j.petlm.2015.11.003

Cited by 54 publications

(36 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the petroleum literature, wettability has been quantified based on wettability index (Amipour et al, 2015), which is directly linked to surface energy. Consequently, the index of wettability must be equally related to surface energy or interfacial energy between phases.…”

Section: Discussionmentioning

confidence: 99%

Derivation of a pH Dependent Solid-Liquid Interfacial Tension and Theoretical Interpretation of the Physicochemistry of Dewetting in the CO2-Brine-Silica System

Amadu¹,

Miadonye²

2019

IJC

View full text Add to dashboard Cite

The solid-liquid interfacial tension is a fundamental parameter in areas of wettability pertaining to adhesive bonds and petroleum engineering practice. In wettability issues related to surface functionalized polymeric materials design to achieve specific adhesive properties, the solid-liquid interfacial tension can be pH dependent due to amphoteric behavior. In this paper, we have used the theory of pH dependent surface charging and the 2-pk model as well as the site binding model of the electric double layer theory to derive a pH dependent solid-liquid interfacial tension equation. Following the fundamental relationship between solid-liquid interfacial tension and contact angle in light of Young’s equation, we have extended the theoretical basis of the derivation. Consequently, we have also derived a pH dependent cosine of the thermodynamic contact angle. Both equations give satisfactory explanations for observed experimental data available in the literature.

show abstract

Section: Discussionmentioning

confidence: 99%

Derivation of a pH Dependent Solid-Liquid Interfacial Tension and Theoretical Interpretation of the Physicochemistry of Dewetting in the CO2-Brine-Silica System

Amadu¹,

Miadonye²

2019

IJC

View full text Add to dashboard Cite

show abstract

“…It is well known that oil recovery from water-wet rocks during the water flooding process is easier than from oil-wet rocks [39][40][41] . When the rock is water-wet, water can imbibe into it and oil is displaced from the pores without significant resistance due to the capillary effect.…”

Section: Oil Production From Water-wet Samples In the Presence And Absence Of A Magnetic Fieldmentioning

confidence: 99%

New Insights into the Application of a Magnetic Field to Enhance Oil Recovery from Oil-Wet Carbonate Reservoirs

et al. 2019

View full text Add to dashboard Cite

Given recent moves towards cleaner energy production, the application of environmentally friendly methods for EOR is considered to be an important research strategy in increasing oil production from existing hydrocarbon reservoirs. Therefore, in this paper, the application of a magnetic field is introduced for the first time as a novel and eco-friendly EOR technique for oil-wet carbonate reservoirs.The magnetic field is generated using three different magnet strengths of 3000, 4100 and 6000 Gauss (G). The impact of incremental increases in magnetic field on oil production from Austin chalk is investigated through measurements of contact angle, rock compaction and the spontaneous imbibition of water and the monitoring of rock surface streaming potential.Dynamic contact angle measurements on oil-wet chalk surfaces in the presence of a magnetic field show that the value of contact angle is reduced faster than when a magnetic field is absent, indicating a significant increase in water imbibition into rock pores. The results of spontaneous imbibition tests reveal significantly greater oil production during the imbibition process in the presence of a magnetic field at about 8.5 times that from oil-wet chalk.Monitoring of the streaming potential of the oil-wet rock surface in the presence and absence of a magnetic field indicates that a change in surface potential charge is responsible for the change in wettability of the surface from oil-wet to water-wet, hence improving water imbibition into carbonate rock which, in turn, can improve the oil displacement from pores.

show abstract

“…Wettability denotes the fluid and solid surface interactions, effects the oil recovery rate and the saturation of residual oil (Tiab and Donaldson, 2004). Depending upon the interactions between rock surface and injected slug a system wettability may vary from oil-wet to water-wet (Amirpour et al, 2015). Surfactants modify the wettability by surface tension reduction and by change of interfacial energy between solid-aqueous phases that leads to contact angle variation in solid-aqueous phase-air system.…”

Section: Introductionmentioning

confidence: 99%

Design and formulation of surfactant stabilized O/W emulsion for application in enhanced oil recovery: effect of pH, salinity and temperature

Kumar

Ali

Kumar

et al. 2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

View full text Add to dashboard Cite

Mobilization of crude oil from the subsurface porous media by emulsion injection is one of the Chemical Enhanced Oil Recovery (C-EOR) techniques. However, deterioration of emulsion by phase separation under harsh reservoir conditions like high salinity, acidic or alkaline nature and high temperature pose a challenge for the emulsion to be a successful EOR agent. Present study aims at formulation of Oil-in-Water (O/W) emulsion stabilized by Sodium Dodecyl Sulfate (SDS) using the optimum values of independent variables – salinity, pH and temperature. The influence of above parameters on the physiochemical properties of the emulsion such as average droplet size, zeta (ζ) potential, conductivity and rheological properties were investigated to optimize the properties. The influence of complex interactions of independent variables on emulsion characteristics were premeditated by experimental model obtained by Taguchi Orthogonal Array (TOA) method. Accuracy and significance of the experimental model was verified using Analysis Of Variance (ANOVA). Results indicated that the experimental models were significantly (p < 0.05) fitted with main influence of salinity (making it a critical variable) followed by its interactions with pH and temperature for all the responses studied for the emulsion properties. No significant difference between the predicted and experimental response values of emulsion ensured the adequacy of the experimental model. Formulated optimized emulsion manifested good stability with 2417.73 nm droplet size, −72.52 mV ζ-potential and a stable rheological (viscosity and viscoelastic) behavior at extensive temperature range. Ultralow Interfacial Tension (IFT) value of 2.22E-05 mN/m was obtained at the interface of crude oil and the emulsion. A favorable wettability alteration of rock from intermediate-wet to water-wet was revealed by contact angle measurement and an enhanced emulsification behavior with crude oil by miscibility test. A tertiary recovery of 21.03% of Original Oil In Place (OOIP) was obtained on sandstone core by optimized emulsion injection. Therefore, performance assessment of optimized emulsion under reservoir conditions confirms its capability as an effective oil-displacing agent.

show abstract

Experimental investigation of wettability alteration on residual oil saturation using nonionic surfactants: Capillary pressure measurement

Cited by 54 publications

References 11 publications

Derivation of a pH Dependent Solid-Liquid Interfacial Tension and Theoretical Interpretation of the Physicochemistry of Dewetting in the CO2-Brine-Silica System

Derivation of a pH Dependent Solid-Liquid Interfacial Tension and Theoretical Interpretation of the Physicochemistry of Dewetting in the CO2-Brine-Silica System

New Insights into the Application of a Magnetic Field to Enhance Oil Recovery from Oil-Wet Carbonate Reservoirs

Design and formulation of surfactant stabilized O/W emulsion for application in enhanced oil recovery: effect of pH, salinity and temperature

Contact Info

Product

Resources

About