Characterizations of surfactant synthesized from palm oil and its application in enhanced oil recovery

Saxena, Neha; Pal, Nilanjan; Dey, Swapan; Mandal, Ajay

doi:10.1016/j.jtice.2017.09.014

Cited by 103 publications

(63 citation statements)

References 52 publications

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“…Consequently, NPs and BS molecules accumulated easier and were more closely packed at the oil-aqueous phase interface. 12,39 In other words, the electrostatic effect of the salt changed the distribution of NPs and BS at the interface and led to better interactions between the crude oil-BS hydrophobic chain and the water-hydrophilic head group of BS.…”

Section: Resultsmentioning

confidence: 99%

“…This accelerates the movement of BS molecules and NPs from the bulk to the interface. 12 All the above reasons were involved in IFT reduction with increasing salinity. This trend was true until optimum salinity was reached, aer which IFT decreased to its minimum value.…”

Section: Resultsmentioning

confidence: 99%

“…Indeed, the results obtained from micromodel tests conrmed that the produced BS is a good candidate in this eld. Saxena et al 12 produced anionic BS from palm oil and studied its ability to alter the wettability of quartz and carbonate surfaces. The produced BS changed the wettability of both surfaces from the oil-wet state to the water-wet state.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of synergistic effects between silica nanoparticles, biosurfactant and salinity in simultaneous flooding for enhanced oil recovery

et al. 2019

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of synergistic effects between silica nanoparticles, biosurfactant and salinity in simultaneous flooding for enhanced oil recovery

et al. 2019

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“…Water‐soluble polymers are used to improve the oil/water mobility ratio (Malik et al, ; Shahzad Kamal and Sultan, ). Surfactants enhance oil recovery by reducing the IFT and improving the capillary number (Pal et al, ; Pal et al, ; Pal et al, ; Saxena et al, ). The residual trapped oil in reservoirs can be recovered by decreasing the IFT and improving the capillary number.…”

Section: Introductionmentioning

confidence: 99%

Development of Polyoxyethylene Zwitterionic Surfactants for High‐Salinity High‐Temperature Reservoirs

Kamal

Hussain

Fogang

et al. 2019

J Surfact & Detergents

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Substantial efforts are underway to improve the recovery factor from existing oil reserves to meet the ever‐growing global oil demand. Surfactants are known to increase oil recovery through reducing interfacial tension (IFT) and/or altering the rock wettability. The selection of surfactants for high‐salinity high‐temperature oil fields is a challenging task owing to poor thermal stability, precipitation, and adsorption of surfactants on reservoir rocks. Sulfobetaine‐based polyoxyethylene zwitterionic surfactants have shown excellent thermal and surface properties. However, their solubility in high‐salinity brines becomes poor particularly with a long hydrophobic tail (>C17). Recently, we synthesized such types of surfactants by incorporating ethylene oxide (EO) units into the hydrophobic tail, which improved the solubility in formation water (213,734 ppm) and seawater (SW) (57,643 ppm). In this work, we investigated the IFT, thermal stability, rheological behavior, and foaming properties of two polyoxyethylene zwitterionic surfactants having different degrees of ethoxylation. Aging experiments exhibited excellent thermal stability and no change in the chemical structure was detected. The surfactant with lesser EO units (EASB‐1a) showed a lower IFT compared to the surfactant with higher EO units (EASB‐1b). Rheological studies revealed that the addition of both surfactants reduced the viscosity of the acrylamide copolymer. However, the effect of EASB‐1a was more prominent compared to that of EASB‐1b. The surfactant with a higher degree of ethoxylation showed lower adsorption compared to the surfactant with a lesser degree of ethoxylation. Both surfactants showed excellent foamability and foam stability compared to the commercial surfactants. Excellent thermal stability, water solubility under harsh reservoir conditions, foaming properties, and lower adsorption make them a suitable choice for high‐temperature, high‐salinity reservoirs.

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“…In oilfield applications, surfactants have been used in well stimulation, acid diversion, drilling fluids, and enhanced oil recovery (EOR) [7][8][9][10][11][12][13]. Enhanced oil recovery techniques are applied at tertiary stages in a reservoir and 30% to 60% extra crude oil can be recovered using different EOR techniques [14].…”

Section: Introductionmentioning

confidence: 99%

Role of Ionic Headgroups on the Thermal, Rheological, and Foaming Properties of Novel Betaine-Based Polyoxyethylene Zwitterionic Surfactants for Enhanced Oil Recovery

2019

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Long-term thermal stability of surfactants under harsh reservoir conditions is one of the main challenges for surfactant injection. Most of the commercially available surfactants thermally degrade or precipitate when exposed to high-temperature and high-salinity conditions. In this work, we designed and synthesized three novel betaine-based polyoxyethylene zwitterionic surfactants containing different head groups (carboxybetaine, sulfobetaine, and hydroxysulfobetaine) and bearing an unsaturated tail. The impact of the surfactant head group on the long-term thermal stability, foam stability, and surfactant–polymer interactions were examined. The thermal stability of the surfactants was assessed by monitoring the structural changes when exposed at high temperature (90 °C) for three months using 1H-NMR, 13C-NMR, and FTIR analysis. All surfactants were found thermally stable regardless of the headgroup and no structural changes were evidenced. The surfactant–polymer interactions were dominant in deionized water. However, in seawater, the surfactant addition had no effect on the rheological properties. Similarly, changing the headgroup of polyoxyethylene zwitterionic surfactants had no major effect on the foamability and foam stability. The findings of the present study reveal that the betaine-based polyoxyethylene zwitterionic surfactant can be a good choice for enhanced oil recovery application and the nature of the headgroup has no major impact on the thermal, rheological, and foaming properties of the surfactant in typical harsh reservoir conditions (high salinity, high temperature).

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Characterizations of surfactant synthesized from palm oil and its application in enhanced oil recovery

Cited by 103 publications

References 52 publications

Investigation of synergistic effects between silica nanoparticles, biosurfactant and salinity in simultaneous flooding for enhanced oil recovery

Investigation of synergistic effects between silica nanoparticles, biosurfactant and salinity in simultaneous flooding for enhanced oil recovery

Development of Polyoxyethylene Zwitterionic Surfactants for High‐Salinity High‐Temperature Reservoirs

Role of Ionic Headgroups on the Thermal, Rheological, and Foaming Properties of Novel Betaine-Based Polyoxyethylene Zwitterionic Surfactants for Enhanced Oil Recovery

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