Enhanced stability and high temperature-tolerance of CO<sub>2</sub> foam based on a long-chain viscoelastic surfactant for CO<sub>2</sub> foam flooding

Zhang, Panfeng; Ren, Shaoran; Shan, Yu; Zhang, Liang; Liu, Yizhe; Huang, Lijuan

doi:10.1039/c9ra00237e

Cited by 32 publications

(10 citation statements)

References 55 publications

(58 reference statements)

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“…The details of the experimental procedure were described elsewhere (Y. Wang, Zhang, et al, 2017; P. Zhang, Bai, et al, 2019; P. Zhang, Ren, et al, 2019). During the experiments, CO 2 , N 2 , and CH 4 was firstly was injected into the visual chamber from the bottom to replace the air at atmospheric pressure, then 150 ml surfactant solution was injected into the visual chamber.…”

Section: Methodsmentioning

confidence: 99%

“…The half‐life time are the main indicator of foam stability. The longer the half‐life time, the slower the foam coalescence and collapse rate, and the foam is more stable. In this study, foam composite index (FCI) was used as a parameter to comprehensively evaluate the influences of foaming ability and foam stability on foam performance (L. Sun et al, 2015; Wei, Pu, Sun, Zhou, & Ji, 2018; P. Zhang, Ren, et al, 2019), which can be calculated as 0.75 × V max × t 1/2 . It is noted that the parameter of “foam production” defined as the ratio of foam volume and rate of foam decay can be also used a good foam performance indicator (Karakashev, 2012).…”

Section: Methodsmentioning

confidence: 99%

“…The longer the half-life time, the slower the foam coalescence and collapse rate, and the foam is more stable. In this study, foam composite index (FCI) was used as a parameter to comprehensively evaluate the influences of foaming ability and foam stability on foam performance (L. Sun et al, 2015;Wei, Pu, Sun, Zhou, & Ji, 2018;P. Zhang, Ren, et al, 2019), which can be calculated as 0.75 Â V max Â t 1/2 .…”

Section: Characterization Parameters For Foam Performancementioning

confidence: 99%

“…It has revealed that CO 2 foam is much less stable than that of N 2 , and air, especially at high temperature and high salinity conditions (D. Li et al, 2015, 2017; D.‐X. Li et al, 2016; Y. Wang, Zhang, et al, 2017; P. Zhang, Bai, et al, 2019; P. Zhang, Diao, et al, 2020; P. Zhang, Ren, et al, 2019). It is notable that CO 2 is more physio‐chemically active in water solution than inertia gas N 2 , and the selection of suitable foam agents for CO 2 is important.…”

Section: Introductionmentioning

confidence: 99%

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Stabilization of natural gas foams using different surfactants at high pressure and high temperature conditions

Bi¹,

Zhang

et al. 2021

J Surfact & Detergents

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Natural gas foam can be used for mobility control and channel blocking during natural gas injection for enhanced oil recovery, in which stable foams need to be used at high reservoir temperature, high pressure and high water salinity conditions in field applications. In this study, the performance of methane (CH 4 ) foams stabilized by different types of surfactants was tested using a high pressure and high temperature foam meter for surfactant screening and selection, including anionic surfactant (sodium dodecyl sulfate), non-anionic surfactant (alkyl polyglycoside), zwitterionic surfactant (dodecyl dimethyl betaine) and cationic surfactant (dodecyl trimethyl ammonium chloride), and the results show that CH 4 -SDS foam has much better performance than that of the other three surfactants. The influences of gas types (CH 4 , N 2 , and CO 2 ), surfactant concentration, temperature (up to 110 C), pressure (up to 12.0 MPa), and the presence of polymers as foam stabilizer on foam performance was also evaluated using SDS surfactant. The experimental results show that the stability of CH 4 foam is better than that of CO 2 foam, while N 2 foam is the most stable, and CO 2 foam has the largest foam volume, which can be attributed to the strong interactions between CO 2 molecules with H 2 O. The foaming ability and foam stability increase with the increase of the SDS concentration up to 1.0 wt% (0.035 mol/L), but a further increase of the surfactant concentration has a negative effect. The high temperature can greatly reduce the stability of CH 4 -SDS foam, while the foaming ability and foam stability can be significantly enhanced at high pressure. The addition of a small amount of polyacrylamide as a foam stabilizer can significantly increase the viscosity of the bulk solution and improve the foam stability, and the higher the molecular weight of the polymer, the higher viscosity of the foam liquid film, the better foam performance.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Characterization Parameters For Foam Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Stabilization of natural gas foams using different surfactants at high pressure and high temperature conditions

Bi¹,

Zhang

et al. 2021

J Surfact & Detergents

Self Cite

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“…The foam volume (V F ) was used to reect the foamability of the chemical agent, while the half-life time (t 1/2 ) was used to reect the foam stability (measured as the time used for half-volume dewatering). Then, a foam composite index (FCI) was used to evaluate the foam performance comprehensively, 44,45 which was calculated as FCI ¼ 0.75V F Â t 1/2 . A suitable formula of foaming agent was screened according to the foam volume (V F ), half-life time (t 1/2 ), and FCI index, and then utilized in the following experiments and pilot tests.…”

Section: N 2 -Foam Evaluation Experimentsmentioning

confidence: 99%

N₂-foam-assisted CO₂ huff-n-puff process for enhanced oil recovery in a heterogeneous edge-water reservoir: experiments and pilot tests

et al. 2021

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Foaming and defoaming properties of CO₂‐switchable surfactants

Poole

Jessop

2022

J Surfact & Detergents

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The present study is about the foaming and defoaming properties of the CO2‐switchable surfactant N,N‐dimethyltetradecylamine (C14DMA) and its advantages compared with the non‐switchable counterpart tetradecyltrimethylammonium bromide (C14TAB). In the absence of CO2, C14DMA is a water insoluble organic molecule without any surface activity thus being unable to stabilize foams. In the presence of CO2, the head group becomes protonated which transforms the water insoluble molecule into a cationic surfactant. Comparing the surface properties and foamability of C14DMA and C14TAB one finds a very similar behavior. However, the foam stabilities differ depending on the gas. Foaming the two‐surfactant solutions with CO2 leads to very unstable foams in both cases. However, foaming the two surfactant solutions with N2 reveals the switchability of C14DMA: while the volume of foams stabilized with C14TAB hardly changes over 1600 s, the volume of foams stabilized with C14DMA decreases significantly in the same period of time. This difference is due to the fact that the surface activity, that is, the amphiphilic nature, of C14DMA is continuously switching off since CO2 is displaced by N2 thus deprotonating and deactivating the surfactant.

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Enhanced stability and high temperature-tolerance of CO₂ foam based on a long-chain viscoelastic surfactant for CO₂ foam flooding

Abstract: CO2 switchable foams have gained increasing attention recently for their smart properties.

Cited by 32 publications

References 55 publications

Stabilization of natural gas foams using different surfactants at high pressure and high temperature conditions

Stabilization of natural gas foams using different surfactants at high pressure and high temperature conditions

N₂-foam-assisted CO₂ huff-n-puff process for enhanced oil recovery in a heterogeneous edge-water reservoir: experiments and pilot tests

Foaming and defoaming properties of CO₂‐switchable surfactants

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Enhanced stability and high temperature-tolerance of CO2 foam based on a long-chain viscoelastic surfactant for CO2 foam flooding

Abstract: CO2 switchable foams have gained increasing attention recently for their smart properties.

Cited by 32 publications

References 55 publications

Stabilization of natural gas foams using different surfactants at high pressure and high temperature conditions

Stabilization of natural gas foams using different surfactants at high pressure and high temperature conditions

N2-foam-assisted CO2 huff-n-puff process for enhanced oil recovery in a heterogeneous edge-water reservoir: experiments and pilot tests

Foaming and defoaming properties of CO2‐switchable surfactants

Contact Info

Product

Resources

About

Enhanced stability and high temperature-tolerance of CO₂ foam based on a long-chain viscoelastic surfactant for CO₂ foam flooding

N₂-foam-assisted CO₂ huff-n-puff process for enhanced oil recovery in a heterogeneous edge-water reservoir: experiments and pilot tests

Foaming and defoaming properties of CO₂‐switchable surfactants