Advanced multi-wall carbon nanotube-optimized surfactant-polymer flooding for enhanced oil recovery

Pandey, Anurag; Qamar, Shamimul; Das, Sunanda; Basu, Surita; Kesarwani, Himanshu; Saxena, Amit; Sharma, Shivanjali; Sarkar, Jayati

doi:10.1016/j.fuel.2023.129463

Cited by 23 publications

(4 citation statements)

References 85 publications

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“…The hydrophobicity of the polymer has a significant impact on how the SDS molecules assemble into the micellar aggregate because the hydrophobic side chains of hydrophobically modified (HM) polymers serve as SDS nucleation sites. Higher hydrophobicity causes the more compact packing of the micellar aggregate …”

Section: Influence Of Chemical Structures In Fluid–fluid and Fluid–ro...mentioning

confidence: 99%

Nanoparticle-Assisted Surfactant/Polymer Formulations for Enhanced Oil Recovery in Sandstone Reservoirs: From Molecular Interaction to Field Application

Mmbuji,

Cao,

et al. 2023

Energy Fuels

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There has been some success with polymer and surfactant injections into depleted sandstone reservoirs for reducing residual oil saturation and improving oil recovery. However, their microemulsion stability is compromised in the harsh conditions of high temperature and salinity. Nanoparticle addition to the polymers and surfactant has resulted in a nanofluid with more stability, improved rheological behaviors, reduced adsorption loss, and much more as a result of the synergistic effects of their components. In this work, the performance of polymeric and surfactant nanofluids and the factors that impair their efficacy were highlighted. Numerous surfactant adsorption mechanisms, such as ion pairing, ion exchange, hydrogen bonds, dipole interactions, and hydrophobic interactions, on the rock surface were illustrated. Synergistic interactions of ternary phases of surfactant, polymer, and nanoparticles to the interfacial tension reduction, wettability alteration, adsorption reduction, rheological enhancement, and nanofluid stability for enhanced oil recovery were also presented. Additionally, the prevailing challenges and their plausible interventions have been highlighted in this review. The summarized results from published papers based on experimental evidence and theoretical deductions presented in this review will uplift the understanding of the screening, designing, and formulation of nanofluids.

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Section: Influence Of Chemical Structures In Fluid–fluid and Fluid–ro...mentioning

confidence: 99%

Nanoparticle-Assisted Surfactant/Polymer Formulations for Enhanced Oil Recovery in Sandstone Reservoirs: From Molecular Interaction to Field Application

Mmbuji,

Cao,

et al. 2023

Energy Fuels

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“…Therefore, optimizing interfacial tension and viscosity using nanofluids can significantly enhance petroleum oil recovery processes. [38][39][40] Pandey et al [41] highlighted the significance of optimizing MWCNTs' utilization within surfactants, resulting in a notable 56% reduction in interfacial tension. In another study conducted by Mahdavinezhad et al, [42] they demonstrated that employing functionalized MWCNTs led to an interfacial tension reduction to 0.33 mN/m in seawater across varying salinity levels.…”

Section: Introductionmentioning

confidence: 99%

Optimizing nanofluid additives for enhanced thermophysical properties in anionic crude oil for EOR applications

Heris,

Bagheri,

Mousavi

et al. 2024

Can J Chem Eng

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This research delved into the effects of introducing multi‐walled carbon nanotubes (MWCNTs) and sodium dodecyl sulphate (SDS) into crude oil with an anionic base, aiming to enhance its thermophysical attributes in the EOR process. The investigation encompassed a range of properties, including interfacial tension, viscosity, density, and electrical conductivity, measured using an LV rheometer with spindle 18. Various ratios of MWCNTs and SDS were mixed with the crude oil to evaluate their impacts. The study uncovered that the 1:1 ratio of MWCNTs to SDS achieved a noteworthy 10% reduction in interfacial tension while minimally affecting viscosity, showing promise for practical applications. Temperature had diverse effects on viscosity and interfacial tension, displaying fluctuating trends. The highest observed result was a substantial 190% viscosity increase at 40°C with a 2:1 ratio, whereas the lowest was a slight −0.81% density change at 60°C for the 1:1 ratio. Additionally, interfacial tension consistently decreased over time for all ratios at various temperatures, with the most significant reductions observed at 40 and 60°C, particularly for the 1:2 and 1:1 ratios. Furthermore, adding MWCNTs and SDS led to a remarkable drop in electrical conductivity, indicating a substantial decrease in salt content within the crude oil. However, it was noted that higher MWCNT concentrations might not be cost‐effective, emphasizing the importance of optimizing additive ratios for a balance between performance and economic viability. This study highlights the potential of tailored nanofluid formulations to improve the thermophysical properties of crude oil, potentially enhancing extraction and refining processes.

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“…Water flooding is one of the widely utilized methods for improving oil recovery. After water flooding, the crude oil recovery can generally only reach 30–40%, and most of the crude oil still remains in the formation. − Additionally, owing to the heterogeneity of the formation and the viscosity difference between water and oil, water will advance preferentially along high-permeability layers instead of entering low-permeability layers, leading to low sweep efficiency of water flooding . To address the issue of water flooding, polymer flooding can be applied …”

Section: Introductionmentioning

confidence: 99%

Development of Novel Silicon Quantum Dots and Their Potential in Improving the Enhanced Oil Recovery of HPAM

Zhao,

Li,

Dai

et al. 2024

Langmuir

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Hydrolyzed polyacrylamide (HPAM) is commonly used in polymer flooding, however, it is prone to viscosity reduction at high temperatures and high salinities, weakening its ability to improve oil recovery. In this work, sulfonated modified silicon quantum dots (S-SiQDs) were synthesized and then added to HPAM to study the improvement of rheological properties and enhanced oil recovery performance of HPAM at high temperatures and salinities. It is found that the S-SiQDs with a concentration of only 0.1 wt % can significantly increase the viscosity of HPAM from 28.5 to 39.6 mPa•s at 60 °C and 10,000 mg/L NaCl. Meanwhile, the HPAM/S-SiQDs hybrid solution always possessed higher viscosity and viscoelastic moduli than HPAM, attributed to the hydrogen bonding between HPAM and S-SiQDs. Notably, HPAM/S-SiQDs still maintained elastic behavior at harsh conditions, indicating that they formed a strong network structure. Through oil displacement experiments, it was found that the oil recovery of HPAM/S-SiQDs was higher (28.3%), while that of HPAM was only 17.2%. Thereafter, the utilization sequence of oil during the displacement process was studied with nuclear magnetic resonance experiments. Ultimately, the oil displacement mechanism of HPAM/S-SiQDs was deeply analyzed, including viscosity thickening and wetting reversal.

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Advanced multi-wall carbon nanotube-optimized surfactant-polymer flooding for enhanced oil recovery

Cited by 23 publications

References 85 publications

Nanoparticle-Assisted Surfactant/Polymer Formulations for Enhanced Oil Recovery in Sandstone Reservoirs: From Molecular Interaction to Field Application

Nanoparticle-Assisted Surfactant/Polymer Formulations for Enhanced Oil Recovery in Sandstone Reservoirs: From Molecular Interaction to Field Application

Optimizing nanofluid additives for enhanced thermophysical properties in anionic crude oil for EOR applications

Development of Novel Silicon Quantum Dots and Their Potential in Improving the Enhanced Oil Recovery of HPAM

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