Influence of lauryl betaine on aqueous solution stability, foamability and foam stability

Syed, Asad Hassan; Idris, Ahmad Kamal; Mohshim, Dzeti Farhah; Yekeen, Nurudeen; Buriro, Muhammad Ali

doi:10.1007/s13202-019-0652-7

Cited by 29 publications

(8 citation statements)

References 18 publications

(31 reference statements)

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“…However, when the viscosity gradually increases from 24.4 mPa s to 145.5 mPa s, the foam volume slightly changes, from 115 mL to 105 mL. Foaming is a process in which the external force overcomes viscous resistance and performs work. − It is a process of converting from mechanical energy to surface energy. The larger the liquid viscosity, the larger the viscous resistance to be overcome during foaming and the worse the foamability.…”

Section: Experimental Results and Discussionmentioning

confidence: 99%

Experimental Investigation on the Stability of Oil-Based Nitrogen Foam under Ultrahigh Pressure and Elevated Temperature

Wang

et al. 2022

Energy Fuels

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Nitrogen flooding can effectively develop lowpermeability and tight reservoirs. However, because of the low viscosity and density of nitrogen, gas channeling easily occurs, resulting in low oil recovery. Oil-based nitrogen foam can be used to control gas channeling during nitrogen flooding, but the foam stability directly affects the application effect. In this paper, the performance of the foaming agent was optimized by compounding, and a stable oil-based nitrogen foam was successfully built, with a foam volume exceeding 400 mL and a half-life of liquid drainage exceeding 40 min. The foam stability under an ultrahigh pressure of 60 MPa and an elevated temperature of 80 °C were investigated by an ultrahigh pressure and ultrahigh temperature PVT system for the first time. The influence of base oil viscosity and interfacial tension on foam stability was examined. The experimental results showed that the foam stability improved when the pressure increased and worsened when the temperature rose. The foam stability was the best at 20 °C and 60 MPa, and the half-life of liquid drainage was nearly 4 h. The foam stability was the worst at 80 °C and 0.1 MPa, and the half-life was <1 min. The higher was the base oil viscosity, the better was the foam stability. Although the rise of pressure and temperature reduces the nitrogen−diesel interfacial tension, the interfacial tension is not the dominant factor affecting foam stability at elevated temperatures. This paper has a certain guiding significance for perfecting the stability mechanism of oil-based nitrogen foam under ultrahigh pressure and elevated temperature and better controlling gas channeling during nitrogen flooding in low-permeability and tight reservoirs.

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Section: Experimental Results and Discussionmentioning

confidence: 99%

Experimental Investigation on the Stability of Oil-Based Nitrogen Foam under Ultrahigh Pressure and Elevated Temperature

Wang

et al. 2022

Energy Fuels

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“…In order to overcome the above issues, other types of surfactants are blended with anionic surfactants, such as nonionic surfactant alkyl polyether AEO, betaine, − etc. AEO surfactants can effectively enhance the tolerance of hard brine, but their cloud points are lower than that of steam, which results in the precipitation of surfactants and coalescence of foam .…”

Section: Introductionmentioning

confidence: 99%

Novel Foam Stabilized by Fatty Amine Polyether Carboxylate and AOS Binary Blend for Enhanced Oil Recovery

Qiu

Cui

et al. 2022

Energy Fuels

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A novel fatty amine polyether carboxylate (RNEC) surfactant with dicarboxylate groups is designed as a foam booster to enhance alpha-olefin sulfonate (AOS) surfactant foam properties for enhanced oil recovery in order to increase gas or steam sweep efficiency under high-temperature conditions. Compared with AOS only, an AOS/RNEC binary blend can generate stronger foam faster at 80−150 °C in sandpack. The foam strength can be improved with the addition of inorganic salts, and good foam performance is maintained over a wide range of salinity between 5791 and 65 255 mg/L and divalent ion concentration between 110 and 3140 mg/L. Three factors lead to the generation of strong foam by the AOS/RNEC binary blend in porous media. First, the salt tolerance of AOS is improved significantly by adding the RNEC foam booster. Second, a greatly negative ζ potential for AOS/ RNEC reduces surfactant adsorption and retardation on the silica sand. More importantly, lower surface area and lower critical micelle concentration (CMC) of AOS/RNEC compared with AOS itself lead to more surfactant molecules adsorbed at the gas− water surface. As a result, foam can propagate further in porous media, even in low surfactant concentrations. Third, an intermolecular attraction between AOS and RNEC leads to the formation of a compacted monolayer, thereby increasing the film thickness and improving the viscoelasticity of the foam. Surface thickness is increased from 2.05 nm for AOS to 2.85 nm for the surfactant blend. Meanwhile, the hydrophobic chain of the blend is oriented more perpendicular to the surface, with tilt angles of 33°f rom the view of the molecular level. The compacted and ordered arrangement of the surfactant molecules at the surface improved the dilatational modulus and surface viscosity by 2.5 times and 1.7 times at an oscillation frequency of 0.1 Hz, respectively. As a consequence of the enhanced film properties, the foam generated by the AOS/RNEC binary blend is more stable and efficient during flowing in porous media.

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“…The characterization of foams is utterly dependent on the size of the bubbles and the foam quality in which bubble size is defined as the average diameter of the bubbles (it might be varied regarding the properties of the foam and the distribution of the bubbles and for colloidal sizes is about 0.01‐0.1 μm) and foam quality is considered as the percentage of the fraction of gas volumes in the generated foam that ranges from 75 to 90 percent. The foam quality is utterly dependent on the size of bubbles where the bubble sizes have been increased; the foam quality has been decreased as the foams would be more unstable 31,35,37‐39 …”

Section: Introductionmentioning

confidence: 99%

“…The foam quality is utterly dependent on the size of bubbles where the bubble sizes have been increased; the foam quality has been decreased as the foams would be more unstable. 31,35,[37][38][39] Although several research and experimental investigations have been performed to consider the significance of simultaneous injection of nitrogen and foam flooding in conventional heterogeneous reservoirs, in this paper, the simultaneous utilization of nitrogen and foaming agent are being investigated in the fractured model. According to the results of this experimental evaluation, the feasible administration of nitrogen gas regarding its high potential is to enhance the overall sweep efficiency by the addition of foams in the high permeability zones, which is ruptured by the oil droplets and caused to transfer the trapped and attic oil into the liquid production path.…”

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confidence: 99%

An experimental investigation to consider thermal methods efficiency on oil recovery enhancement

Wang

Davarpanah

2020

Heat Trans

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To study the profound impact of reservoir characteristics on flow regime in two‐phase condition, the effect of saturation and capillary pressure (Pc–S) should be taken into consideration in the porous medium. The purpose of this extensive experimental investigation is to inject the foaming agent and nitrogen gas, which is produced by the foam generator after waterflooding in a fractured reservoir to select the best optimum scenario. It has been elaborated that nitrogen of lower density and lower compressibility would provide a secondary gas cap at the top of the cores which causes to mobilize more oil volume in the unswept zones. The rupturing of foam considerably influences this phenomenon in the high permeable layers that have led the oil of low permeable layers to be mobilized in the presence of nitrogen.

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Influence of lauryl betaine on aqueous solution stability, foamability and foam stability

Cited by 29 publications

References 18 publications

Experimental Investigation on the Stability of Oil-Based Nitrogen Foam under Ultrahigh Pressure and Elevated Temperature

Experimental Investigation on the Stability of Oil-Based Nitrogen Foam under Ultrahigh Pressure and Elevated Temperature

Novel Foam Stabilized by Fatty Amine Polyether Carboxylate and AOS Binary Blend for Enhanced Oil Recovery

An experimental investigation to consider thermal methods efficiency on oil recovery enhancement

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