A novel foam system stabilized by hydroxylated multiwalled carbon nanotubes for enhanced oil recovery: Preparation, characterization and evaluation

Xu, Li; Chen, Xin

doi:10.1016/j.colsurfa.2021.127804

Cited by 12 publications

(7 citation statements)

References 52 publications

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“…Sonication causes low pressure waves and high-pressure waves swap in a liquid. This causes tiny vacuum bubbles to grow and erupt in a dramatic way, as well as significant shear stresses [9,12]. The significance of this study is that an adequate SDBS/MWCNT solution could offer good foam-stabilizing performance during enhanced oil recovery.…”

Section: The Use Of Ultrasonic Waves In Petroleum Reservoirs To Impro...mentioning

confidence: 95%

“…In another study, ultrasonic waves were used to make multi-walled carbon nanotubes (MWCNT) that were hydroxylated to spread out more in the SDBS solution [12]. The cavitation and chip effects of ultrasound can disentangle the MWCNT, and the SDBS molecules that stick to the MWCNT can strengthen the electrostatic repulsion between the nanotubes.…”

Section: The Use Of Ultrasonic Waves In Petroleum Reservoirs To Impro...mentioning

confidence: 99%

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The Utilization of Ultrasound for Improving Oil Recovery and Formation Damage Remediation in Petroleum Reservoirs: Review of Most Recent Researches

et al. 2022

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The ultrasound method is a low-cost, environmentally safe technology that may be utilized in the petroleum industry to boost oil recovery from the underground reservoir via enhanced oil recovery or well stimulation campaigns. The method uses a downhole instrument to propagate waves into the formation, enhancing oil recovery and/or removing formation damage around the wellbore that has caused oil flow constraints. Ultrasonic technology has piqued the interest of the petroleum industry, and as a result, research efforts are ongoing to fill up the gaps in its application. This paper discusses the most recent research on the investigation of ultrasound’s applicability in underground petroleum reservoirs for improved oil recovery and formation damage remediation. New study areas and scopes were identified, and future investigations were proposed.

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Section: The Use Of Ultrasonic Waves In Petroleum Reservoirs To Impro...mentioning

confidence: 95%

Section: The Use Of Ultrasonic Waves In Petroleum Reservoirs To Impro...mentioning

confidence: 99%

The Utilization of Ultrasound for Improving Oil Recovery and Formation Damage Remediation in Petroleum Reservoirs: Review of Most Recent Researches

et al. 2022

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“…The commonly used foam sealing and channeling systems are mainly composed of a foaming agent, foam stabilizer, and gas phase [ 32 , 33 ]. Therefore, guanidine gum fluid is used as the basic liquid phase in this study, the thickener and foaming agent are optimized by experiments, and the gel fracturing fluid that is needed to mix with liquid CO 2 in this research is formed.…”

Section: Experiments and Methodsmentioning

confidence: 99%

Experimental Evaluation of the Rheological Properties and Influencing Factors of Gel Fracturing Fluid Mixed with CO2 for Shale Gas Reservoir Stimulation

Wang

Wu²,

Chen

et al. 2022

Gels

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Foam gel fracturing fluid has the characteristics of low formation damage, strong flowback ability, low fluid loss, high fluid efficiency, proper viscosity, and strong sand-carrying capacity, and it occupies a very important position in fracturing fluid systems. The rheological properties of gel fracturing fluid with different foam qualities of CO2, under different experimental temperatures and pressures, have not been thoroughly investigated, and their influence on it was studied. To simulate the performance of CO2 foam gel fracturing fluid under field operation conditions, the formula of the gel fracturing fluid was obtained through experimental optimization in this paper, and the experimental results show that the viscosity of gel fracturing fluid is 2.5 mPa·s (after gel breaking at a shear rate of 500 s−1), the residue content is 1.3 mg/L, the surface tension is 25.1 mN/m, and the interfacial tension is 1.6 mN/m. The sand-carrying fluid has no settlement in 3 h with a 40% sand ratio of 40–70-mesh quartz sand. The core damage rate of foam gel fracturing fluid is less than 19%, the shear time is 90 min at 170 s−1 and 90 °C, the viscosity of fracturing fluid is >50 mPa·s, and the temperature resistance and shear resistance are excellent. The gel fracturing fluid that was optimized was selected as the base fluid, which was mixed with liquid CO2 to form the CO2 foam fracturing fluid. This paper studied the rheological properties of CO2 foam gel fracturing fluid with different CO2 foam qualities under high temperature (65 °C) and high pressure (30 MPa) and two states of supercooled liquid (unfoamed) and supercritical state (foamed) through indoor pipe flow experiments. The effects of temperature, pressure, shear rate, foam quality, and other factors on the rheological properties of CO2 foam gel fracturing fluid were considered, and it was confirmed that among all the factors, foam quality and temperature are the main influencing factors, which is of great significance for us to better understand and evaluate the flow characteristics of CO2 foam gel fracturing fluid and the design of shale gas reservoir fracturing operations.

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“…Due to sensitivity of surfactants and polymers to high salinity and temperature (Babamahmoudi and Riahi 2018 ; Farzaneh and Sohrabi 2015 ; Ko and Huh 2019 ; Kutay and Schramm 2004 ; Lee et al 2015 ; Singh and Mohanty 2017 ; Yekeen et al 2017 ), recently novel methods such as combination of foams and nanoparticles (Almubarak et al 2020 ) have been suggested as a solution to improve the stability of foams during flooding. Studies have shown that the use of nanoparticles as foam stabilizer leads to beneficial effects (X. Li et al 2022a , b ). The effects of TiO 2 on foam stability and efficiency of oil production in glass micromodel were examined by Panahpoori et al They observed that the mixture of TiO 2 and hexadecyltrimethylammonium bromide (CTAB) improved foam stability.…”

Section: Introductionmentioning

confidence: 99%

A review on application of nanoparticles for EOR purposes: history and current challenges

Iravani

Khalilnezhad

2023

J Petrol Explor Prod Technol

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Applications of nanotechnology in several fields of petroleum industry, e.g., refinery, drilling and enhanced oil recovery (EOR), have attracted a lot of attention, recently. This research investigates the applications of nanoparticles in EOR process. The potential of various nanoparticles, in hybrid and bare forms for altering the state of wettability, reducing the interfacial tension (IFT), changing the viscosity and activation of other EOR mechanisms are studied based on recent findings. Focusing on EOR, hybrid applications of nanoparticles with surfactants, polymers, low-salinity phases and foams are discussed and their synergistic effects are evaluated. Also, activated EOR mechanisms are defined and specified. Since the stabilization of nanofluids in harsh conditions of reservoir is vital for EOR applications, different methods for stabilizing nanofluids through EOR procedures are reviewed. Besides, a discussion on different functional groups of NPs is represented. Later, an economic model for evaluation of EOR process is examined and “Hotelling” method as an appropriate model for investigation of economic aspects of EOR process is introduced in detail. The findings of this study can lead to better understanding of fundamental basis about efficiency of nanoparticles in EOR process, activated EOR mechanisms during application of nanoparticles, selection of appropriate nanoparticles, the methods of stabilizing and economic evaluation for EOR process with respect to costs and outcomes.

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A novel foam system stabilized by hydroxylated multiwalled carbon nanotubes for enhanced oil recovery: Preparation, characterization and evaluation

Cited by 12 publications

References 52 publications

The Utilization of Ultrasound for Improving Oil Recovery and Formation Damage Remediation in Petroleum Reservoirs: Review of Most Recent Researches

The Utilization of Ultrasound for Improving Oil Recovery and Formation Damage Remediation in Petroleum Reservoirs: Review of Most Recent Researches

Experimental Evaluation of the Rheological Properties and Influencing Factors of Gel Fracturing Fluid Mixed with CO2 for Shale Gas Reservoir Stimulation

A review on application of nanoparticles for EOR purposes: history and current challenges

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