Oil/water Interfacial Tension of Shengli Petroleum Sulfonate/α-Olefin or Polyethyleneoxy Ether Sulfonate Binary Systeme

Zhang, Yongmin; Zhou, Dapeng; Luo, Yeyuan

doi:10.3139/113.110356

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…As can be seen from Table 1 , with the increase in the mass concentration of 2# viscosity reducer, the viscosity of the emulsion decreased and the viscosity reduction rate increased. This is because petroleum sulfonate itself is a classic viscosity reducer, and studies have shown that it has good emulsifying properties [ 17 , 18 , 19 , 20 ]. When the mass concentration of the 2# reached 0.5%, the viscosity of the emulsion further reduced, but there was little difference in the viscosity when the mass concentration was 0.3%.…”

Section: Resultsmentioning

confidence: 99%

Study on the Effect of Different Viscosity Reducers on Viscosity Reduction and Emulsification with Daqing Crude Oil

Zhang

Zhou

et al. 2023

Molecules

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The urgent problem to be solved in heavy oil exploitation is to reduce viscosity and improve fluidity. Emulsification and viscosity reduction technology has been paid more and more attention and its developments applied. This paper studied the viscosity reduction performance of three types of viscosity reducers and obtained good results. The viscosity reduction rate, interfacial tension, and emulsification performance of three types of viscosity reducers including anionic sulfonate, non-ionic (polyether and amine oxide), and amphoteric betaine were compared with Daqing crude oil. The results showed that the viscosity reduction rate of petroleum sulfonate and betaine was 75–85%. The viscosity reduction rate increased as viscosity reducer concentration increased. An increase in the oil–water ratio and polymer decreased viscosity reduction. When the concentration of erucamide oxide was 0.2%, the ultra-low interfacial tension was 4.41 × 10−3 mN/m. When the oil–water ratio was 1:1, the maximum water separation rates of five viscosity reducers were different. With an increase in the oil–water ratio, the emulsion changed from o/w emulsion to w/o emulsion, and the stability was better. Erucamide oxide and erucic betaine had good viscosity reduction and emulsification effects on Daqing crude oil. This work can enrich knowledge of the viscosity reduction of heavy oil systems with low relative viscosity and enrich the application of viscosity reducer varieties.

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Section: Resultsmentioning

confidence: 99%

Study on the Effect of Different Viscosity Reducers on Viscosity Reduction and Emulsification with Daqing Crude Oil

Zhang

Zhou

et al. 2023

Molecules

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“…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

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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.

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“…Because cationic surfactants are adsorbed largely in rock surfaces with negative charges, they are generally not used to displace oil at sandstone reservoirs. Among anionic surfactants, petroleum sulfonate surfactants are the most widely used because they have low cost, high interfacial activity, and good heat resistance (Luan et al, 2022; Zhang et al, 2012). However, because their salt tolerance is poor and they have high critical micelle concentrations (cmc), they are limited to use in high salinity reservoirs.…”

Section: Introductionmentioning

confidence: 99%

Progress in research of sulfobetaine surfactants used in tertiary oil recovery

et al. 2022

J Surfact & Detergents

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The synthesis of sulfobetaine surfactants and their application in tertiary oil recovery (TOR) are summarized in this paper. The synthesis of sulfobetaine surfactants was classified into three categories of single hydrophobic chain sulfobetaine surfactants, double hydrophobic chain sulfobetaine surfactants and Gemini sulfobetaine surfactants for review. Their application in TOR was classified into surfactant flooding, microemulsion flooding, surfactant/polymer (SP) flooding and foam flooding for review. The sulfonated betaine surfactants have good temperature resistance and salt tolerance, low critical micelle concentration (cmc) and surface tension corresponding to critical micelle concentration (γcmc), good foaming properties and wettability, low absorption, ultralow interfacial tension of oil/water, and excellent compatibility with other surfactants and polymers. Sulfobetaine surfactants with ethoxyl structures, hydroxyl and unsaturated bonds, and Gemini sulfobetaine surfactants will become an important direction for tertiary oil recovery because they have better interfacial activity in high‐temperature (≥90°C) and high‐salinity (≥104 mg/L) reservoirs. Some problems existing in the synthesis and practical application were also reviewed.

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Oil/water Interfacial Tension of Shengli Petroleum Sulfonate/α-Olefin or Polyethyleneoxy Ether Sulfonate Binary Systeme

Cited by 6 publications

References 19 publications

Study on the Effect of Different Viscosity Reducers on Viscosity Reduction and Emulsification with Daqing Crude Oil

Study on the Effect of Different Viscosity Reducers on Viscosity Reduction and Emulsification with Daqing Crude Oil

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

Progress in research of sulfobetaine surfactants used in tertiary oil recovery

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