Stability, CO<sub>2</sub> sensitivity, oil tolerance and displacement efficiency of polymer enhanced foam

Pu, Wanfen; Wei, Peng; Sun, Lin; Wang, Song

doi:10.1039/c6ra27063h

Cited by 42 publications

(27 citation statements)

References 26 publications

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“…Simultaneously, CO 2 dissolves in the liquid films, which eventually leads to the phenomenon of coarsening. In addition, the microappearance of in situ foam is similar to that of the conventional foam generated by a high‐speed blender (Pu, Wei, & Sun, ), which indicates that a good texture can be developed in the in situ foam system.…”

Section: Optimization Of the Releasing Agentmentioning

confidence: 55%

Investigation on Foam Self‐Generation Using In Situ Carbon Dioxide (CO₂) for Enhancing Oil Recovery

Jin

Wei

et al. 2018

J Surfact & Detergents

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In situ carbon dioxide (CO2) foam flooding has proved to be economically feasible in the oil field, but its self‐generation behavior in the bulk scale/porous media is far from understood. In this study, the optimum in situ CO2‐foaming agent was first screened, and then in situ foam was investigated in the bulk. In situ foam flooding was conducted to evaluate the displacement characteristics and enhanced oil recovery of this system. The results showed that the foaming agent comprising 0.5% sodium dodecyl sulfonate (SDS) + 0.5% lauramido propyl hydroxyl sultaine (LHSB) gave the best foam properties and that the in situ CO2 foam with a slow releasing rate is effective both in bulk scale and in porous media, allowing a considerable enhancement of oil recovery in sand packs with different permeabilities.

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Section: Optimization Of the Releasing Agentmentioning

confidence: 55%

Investigation on Foam Self‐Generation Using In Situ Carbon Dioxide (CO₂) for Enhancing Oil Recovery

Jin

Wei

et al. 2018

J Surfact & Detergents

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“…This conforms with the principle of the entry barrier stability coefficient (E) described in the Table 1. Pu et al (2017) also studied the relationship between the foaming concentration, surface tension, foam height and half-life. In their result (Figure 6), it can be observed that as the concentration of foaming agent increases, the foam height and foam half-life increased considerably, while the surface tension lowered.…”

Section: Eor-foam Half-lifementioning

confidence: 99%

An Overview of the Present Stability and Performance of EOR-Foam

Hamza

Sinnathambi

Merican

et al. 2017

JSM

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“…When the CO 2 -brine system is strongly dispersive, more CO 2 will dissolve into the brine, and the dissolution process will be accelerated [17]. As the CO 2 solubility is enhanced under a supercritical state, it is expected that increasing pressure in deeper aquifers can greatly promote the solubility of CO 2 in aqueous solution [18]. Therefore, an adequate reservoir condition is important to reduce the time span of solubility trapping and will increase storage security [19].…”

Section: Introductionmentioning

confidence: 99%

Characterizing the Dissolution Rate of CO2-Brine in Porous Media under Gaseous and Supercritical Conditions

Teng

et al. 2017

Applied Sciences

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Abstract:The CO 2 -brine dissolution homogenizes the distribution of residual CO 2 and reduces the leakage risk in the saline aquifer. As a key parameter to immobilize the free CO 2 , the dissolution rate of CO 2 -brine could be accelerated through mechanisms like diffusion and dispersion, which are affected by the subsurface condition, pore structure, and background hydrological flow. This study contributed the calculated dissolution rates of both gaseous and supercritical CO 2 during brine imbibition at a pore-scale. The flow development and distribution in porous media during dynamic dissolution were imaged in two-dimensional visualization using X-ray microtomography. The fingerings branching and expansion resulted in greater dissolution rates of supercritical CO 2 with high contact between phases, while the brine bypassed the clusters of gaseous CO 2 with a slower dissolution and longer duration due to the isolated bubbles. The dissolution rate of supercritical CO 2 was about two or three orders of magnitude greater than that of gaseous CO 2 , while the value distributions both spanned about four orders of magnitude. The dissolution rates of gaseous CO 2 increased with porosity, but the relationship was the opposite for supercritical CO 2 . CO 2 saturation and the Reynolds number were analyzed to characterize the different impacts on gaseous and supercritical CO 2 at different dissolution periods.

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Stability, CO₂ sensitivity, oil tolerance and displacement efficiency of polymer enhanced foam

Abstract: This paper focuses on the benefits of polymers that contribute to foam flooding, such as foam stability, carbon dioxide (CO2) sensitivity, oil tolerance and displacement efficiency.

Cited by 42 publications

References 26 publications

Investigation on Foam Self‐Generation Using In Situ Carbon Dioxide (CO₂) for Enhancing Oil Recovery

Investigation on Foam Self‐Generation Using In Situ Carbon Dioxide (CO₂) for Enhancing Oil Recovery

An Overview of the Present Stability and Performance of EOR-Foam

Characterizing the Dissolution Rate of CO2-Brine in Porous Media under Gaseous and Supercritical Conditions

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Stability, CO2 sensitivity, oil tolerance and displacement efficiency of polymer enhanced foam

Abstract: This paper focuses on the benefits of polymers that contribute to foam flooding, such as foam stability, carbon dioxide (CO2) sensitivity, oil tolerance and displacement efficiency.

Cited by 42 publications

References 26 publications

Investigation on Foam Self‐Generation Using In Situ Carbon Dioxide (CO2) for Enhancing Oil Recovery

Investigation on Foam Self‐Generation Using In Situ Carbon Dioxide (CO2) for Enhancing Oil Recovery

An Overview of the Present Stability and Performance of EOR-Foam

Characterizing the Dissolution Rate of CO2-Brine in Porous Media under Gaseous and Supercritical Conditions

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Product

Resources

About

Stability, CO₂ sensitivity, oil tolerance and displacement efficiency of polymer enhanced foam

Investigation on Foam Self‐Generation Using In Situ Carbon Dioxide (CO₂) for Enhancing Oil Recovery

Investigation on Foam Self‐Generation Using In Situ Carbon Dioxide (CO₂) for Enhancing Oil Recovery