Experimental Study of the Effect of Strong Alkali on Lowering the Interfacial Tension of Oil/Heavy Alkylbenzene Sulfonates System

Liu, Bixin; Hou, Jirui; Hongjiao, Tang; Xu, Huifang; Zheng, Zhen

doi:10.1002/cjoc.201180397

Cited by 7 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sulfonate surfactant is one of the most important surfactants in the enhanced oil recovery (EOR) industry and has played an important role in chemical EOR in past decades. , Petroleum sulfonate as an anionic surfactant was successfully applied in the Loudon oil field, Illinois, in the 1960s . Since then, surfactants such as petroleum sulfonate − as well as alkyl benzenesulfonate − and olefin sulfonate − have been widely used in enhanced oil recovery due to their good performances and economic advantages. Nanoparticle surfactants and interfacial active nanoparticles could contribute to reducing interfacial tension, forming pulse emulsification and wettability alteration in porous media, which have also gained attention for their potential applications in enhanced oil recovery. − However, those surfactants are limited in applications to high salinity reservoirs due to their poor salt tolerance.…”

Section: Introductionmentioning

confidence: 99%

A New Thermal Stable and Salt Tolerant Alkyl Polyether Benzyl Sulfonate Surfactant with Ultralow Interfacial Tensions for Enhanced Oil Recovery

Bao

Zhang

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

A large variety of surfactants have been widely used in enhanced oil recovery, yet there is still a challenge for the application of surfactants in oil reservoirs with high salinity and high temperatures. Herein we report a new alkyl polyether benzyl sulfonate anionic surfactant named sodium iso-tridecanol polyoxyethylene ether benzyl sulfonate with ultralow interfacial tensions at high salinity and high temperatures synthesized through a strategy connecting the alkyl polyether with a benzyl group. Its structure was confirmed by 1 H NMR. Effects of the temperature, salinity, divalent ion, and surfactant concentration on interfacial tensions and phase behaviors were investigated. The alkyl polyether benzyl sulfonate surfactant demonstrated a strong interfacial activity and excellent phase behavior with high solubilization parameters at salinities up to 18.0 wt % NaCl and temperatures up to 120 °C, which suggest that the new alkyl polyether benzyl sulfonate surfactant has good temperature resistance and salt tolerance and is promising for applications in enhanced oil recovery in high temperature and high salinity oil reservoirs.

show abstract

Section: Introductionmentioning

confidence: 99%

A New Thermal Stable and Salt Tolerant Alkyl Polyether Benzyl Sulfonate Surfactant with Ultralow Interfacial Tensions for Enhanced Oil Recovery

Bao

Zhang

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…Alkylbenzene sulfonates are widely employed in EOR and the considerable researches have been carried out on their chemical synthesis, performance evaluation, and practical application [20][21][22][23][24][25][26][27]. According to the mentioned above, as an important factor to influence the effect of oil displacement, the analysis on the molecular structures of surfactant has attracted more and more interests.…”

Section: Introductionmentioning

confidence: 99%

A mechanism study of sodium dodecylbenzene sulfonate on oil recovery: effect of branched chain structure

Wang

Guo²,

Wang³

et al. 2022

J Mol Model

View full text Add to dashboard Cite

The effects of the branched structures of SDBS molecules on oil recovery are investigated by molecular dynamics method. The relative density of oil molecules shows that SDBS molecule with benzene ring located near the center of alkyl chain has the best effect on oil displacement.Dynamic trajectories show that the water and SDBS molecules gradually occupy the calcite surface and replace the oil droplets. In this process, more water molecules gather nearby the polar groups of SDBS, indicating that the polar group has a significant effect on the water infiltration and the formation of water channels. Contact angle between SDBS molecule and calcite surface indicates that compared to straight chains, the branched structure tends to spread on the calcite interface. Moreover, adsorption energies of the simulation systems further prove that as the aromatic ring is closer to the middle of the alkyl chain, the oil displacement effect is better.

show abstract

“…The size of emulsified oil droplets were larger and the maximum syneresis rate was 68% when used with ethanolamine, which was 33% higher, compared to sodium carbonate solution. Li et al 24 investigated the performance of three types of organic alkali (methylamine, trimethylamine, triethylamine) on IFT. The results showed that, when only organic alkali or surfactant were used, they produced high IFT, while the combination solutions of organic alkali and surfactant (even in low concentration) showed synergism and therefore had low IFT.…”

Section: ■ Introductionmentioning

confidence: 99%

Application of Organic Alkali for Heavy-Oil Enhanced Oil Recovery (EOR), in Comparison with Inorganic Alkali

2016

Self Cite

View full text Add to dashboard Cite

Alkali is an important component for alkali/surfactant/polymer technology for enhanced oil recovery (EOR). The mechanism and advantages of traditional inorganic alkali for EOR was reviewed in this paper. The rheological and dynamic properties of the combination of alkali and polymer were analyzed. The results show that the polymer solution with ethanolamine has better shear viscosity and elastic properties at room temperature. Surfactant (Alfaterra 123-8S-90) with concentration of 0.15 wt % was added into each alkali−polymer (AP) solution. No significant change was observed in rheological properties of AP solutions with and without surfactant. Emulsification tests show that ethanolamine has better performance with oil. Injectivity tests were also conducted. The results indicated that the residual resistance factor (RRF) for an ethanolamine− polymer solution is always higher at each flow rate tested, in comparison to a NaOH-based AP solution, which is beneficial for oil recovery. The interfacial tension (IFT) tests results indicated that ethanolamine has better synergy with the surfactant. Polymer adsorption using both static and dynamic measurements was conducted. Polymer solution in an ethanolamine system has lower adsorption for both measurements. The pressure comparison during core flooding experiments shows that it has higher injection pressure in ethanolamine conditions, which result in good sweep efficiency. The ethanolamine−polymer flooding showed a significant increase in oil recovery (15.33%) over NaOH−polymer flooding. After the addition of surfactant, the total recovery improves by 14.8% for ethanolamine−polymer−surfactant flooding over its inorganic counterpart. The better performance indicates that ethanolamine can become a potential alkali and can replace NaOH for EOR.

show abstract

Experimental Study of the Effect of Strong Alkali on Lowering the Interfacial Tension of Oil/Heavy Alkylbenzene Sulfonates System

Cited by 7 publications

References 16 publications

A New Thermal Stable and Salt Tolerant Alkyl Polyether Benzyl Sulfonate Surfactant with Ultralow Interfacial Tensions for Enhanced Oil Recovery

A New Thermal Stable and Salt Tolerant Alkyl Polyether Benzyl Sulfonate Surfactant with Ultralow Interfacial Tensions for Enhanced Oil Recovery

A mechanism study of sodium dodecylbenzene sulfonate on oil recovery: effect of branched chain structure

Application of Organic Alkali for Heavy-Oil Enhanced Oil Recovery (EOR), in Comparison with Inorganic Alkali

Contact Info

Product

Resources

About