Enhancing N<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e568" altimg="si72.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math> and CO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e576" altimg="si72.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math> foam stability by surfactants and nanoparticles at high temperature and various salinities

Bello, Ayomikun; Ivanova, Anastasia A.

doi:10.1016/j.petrol.2022.110720

Cited by 27 publications

(7 citation statements)

References 53 publications

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“…High-pressure microscopy was used to evaluate the stability of these foams under the pressure and temperature conditions of an oil reservoir. As described in our previous study [34], foam stability was investigated in the absence and presence of nanoparticles at appropriate concentrations. This was carried out to determine the level of foam stability before proceeding to filtration studies to determine the oil recovery factor, among other objectives.…”

Section: Methodsmentioning

confidence: 99%

“…In our experiments, the concentration of AOS used was slightly above its CMC-0.3 wt.% and was fixed for all tests. The concentrations of silica nanoparticles used were 0.05 wt.% and 0.1 wt.% according to our previous study [34].…”

Section: Preparation Of Nanofluidsmentioning

confidence: 99%

“…In order to achieve this goal, we first conducted screening tests in Bello et al [34] to determine the optimal types of nanoparticles and surfactants and their concentrations in different salinity and temperature conditions. Therefore, in the present work, we conducted foam stability experiments with N 2 and CO 2 foams in the presence and absence of nanoparticles at high pressure and temperature to mimic real oilfield conditions.…”

Section: Introductionmentioning

confidence: 99%

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An Experimental Study of High-Pressure Microscopy and Enhanced Oil Recovery with Nanoparticle-Stabilised Foams in Carbonate Oil Reservoir

Bello,

Ivanova,

Rodionov

et al. 2023

Energies

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Foams have been successfully implemented to overcome the challenges associated with gas-enhanced oil recovery (EOR) over time. Generally, the foam helps to increase the viscosity of the injected gas, which in turn improves the effectiveness of EOR. However, this technology has rarely been applied in the oilfield due to technological and economical limitations. It is widely considered that nanoparticles may be added to foam to enhance its performance in harsh reservoir conditions to overcome some of these limitations. In this study, we employed high-pressure microscopy (HPM) as an advanced technique to examine the stability of N2 and CO2 foams at reservoir conditions, both with and without nanoparticles. The experiments were conducted under vapour and supercritical conditions. Our results indicated that foams produced at 80% quality were more stable than foams produced at 50% quality because the bubble size was significantly smaller and the bubble count was higher. Additionally, foams under supercritical conditions (sc) exhibited greater stability than foams under vapour conditions. This is because at supercritical conditions, the high density of gases helps to strengthen the foam lamella by enhancing the intermolecular contacts between the gas and the hydrophobic part of the liquid phase. Furthermore, core flooding studies were performed to investigate their effect on oil displacement and mobility control in both real and artificial core samples. Rather than focusing on precise quantitative results, our objective was to assess the effect of foams on oil recovery qualitatively. The results indicated that foam injection could significantly increase displacement efficiency, as foam injection raised total displacement efficiency from an initial 48.9% to 89.7% in the artificial core sample. Similarly, in the real core model, CO2 foam injection was implemented as a tertiary recovery method, and a recovery factor of 28.91% was obtained. These findings highlight the potential benefits of foams for EOR purposes and their ability to mitigate early gas breakthrough, which was observed after injecting approximately 0.14 PV during scCO2 injection.

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Section: Methodsmentioning

confidence: 99%

Section: Preparation Of Nanofluidsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Experimental Study of High-Pressure Microscopy and Enhanced Oil Recovery with Nanoparticle-Stabilised Foams in Carbonate Oil Reservoir

Bello,

Ivanova,

Rodionov

et al. 2023

Energies

Self Cite

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“…The past decade has seen several studies attempting to improve and strengthen foam properties with varying degrees of success, including advances in surfactant formulas [79], the addition of polymer to the foaming solution [52,80], and the use of nanoparticles [81][82][83][84].…”

Section: Choice Of Foam Stabilizing Agentmentioning

confidence: 99%

Status of Foam as a Liquid Blocking Agent in Porous Media: A Review

Solbakken

2023

Energies

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This article summarizes the state-of-the-art knowledge gained from field observations and laboratory studies regarding foam as a liquid controlling agent in porous media. Being the least explored property of foam, its effect and potential have often been overlooked or simply ignored. The aim with this review is therefore to demonstrate the abilities that foam could have to block, reduce, delay, suppress, or divert water flow in porous media. As a liquid controlling agent in porous media, foam has potential for industrial processes that involve fluid injections or fluid withdrawals in porous geological formations, such as improved/enhanced oil recovery (IOR/EOR), matrix-stimulation treatments, underground storage of CO2, hydrogen, compressed-air or natural gas withdrawal, geothermal energy, and contaminated soil-groundwater remediation processes with unwanted aquifer impacts. Improving the water utilization factor and water management in these applications might result in tremendous energic, economic, and environmental incentives that are worth pursuing. Specific focus in this review is given to the post-foam water injection, which determines the ultimate stability and water-blocking capabilities of the foam treatment. Main parameters and mechanisms that can influence foam stability against water injection/intrusion after generation and placement are assessed and discussed. Unresolved issues are highlighted, which give recommendations for further research and field-scale operations.

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“…Foam is widely utilized in EOR operations because of its ability to reduce gas mobility and improve sweep efficiency, thereby enhancing oil recovery from reservoirs 1 – 3 . The application of foams in EOR is based on their ability to generate a stable gas–liquid dispersion that reduces the viscosity difference between the injection fluid and the reservoir resident fluids, to form a more uniform propagation front for gas mobility control, subsequently leading to an improved oil displacement 4 , 5 .…”

Section: Introductionmentioning

confidence: 99%

An experimental study of foam-oil interactions for nonionic-based binary surfactant systems under high salinity conditions

Bello,

Ivanova,

Bakulin

et al. 2024

Sci Rep

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A key factor affecting foam stability is the interaction of foam with oil in the reservoir. This work investigates how different types of oil influence the stability of foams generated with binary surfactant systems under a high salinity condition. Foam was generated with binary surfactant systems, one composed of a zwitterionic and a nonionic surfactant, and the other composed of an anionic and a nonionic surfactant. Our results showed that the binary surfactant foams investigated are more tolerant under high salinity conditions and in the presence of oil. This was visually observed in our microscopic analysis and was further attributed to an increase in apparent viscosity achieved with binary surfactant systems, compared to single surfactant foams. To understand the influence of oil on foam stability, we performed a mechanistic study to investigate how these oils interact with foams generated with binary surfactants, focusing on their applicability under high salinity conditions. The generation and stability of foam are linked to the ability of the surfactant system to solubilize oil molecules. Oil droplets that solubilize in the micelles appear to destabilize the foam. However, oils with higher molecular weights are too large to be solubilized in the micelles, hence the molecules will have less ability to be transported out of the foam, so oil seems to stabilize the foam. Finally, we conducted a multivariate analysis to identify the parameters that influenced foam stability in different oil types, using the experimental data from our work. The results showed that the oil molecular weight, interfacial tension between the foaming liquid and the oil, and the spreading coefficient are the most important variables for explaining the variation in the data. By performing a partial least square regression, a linear model was developed based on these most important variables, which can be used to predict foam stability for subsequent experiments under the same conditions as our work.

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Enhancing N2 and CO2 foam stability by surfactants and nanoparticles at high temperature and various salinities

Cited by 27 publications

References 53 publications

An Experimental Study of High-Pressure Microscopy and Enhanced Oil Recovery with Nanoparticle-Stabilised Foams in Carbonate Oil Reservoir

An Experimental Study of High-Pressure Microscopy and Enhanced Oil Recovery with Nanoparticle-Stabilised Foams in Carbonate Oil Reservoir

Status of Foam as a Liquid Blocking Agent in Porous Media: A Review

An experimental study of foam-oil interactions for nonionic-based binary surfactant systems under high salinity conditions

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