Oil Displacement Efficiency of a Silica/HPAM Nanohybrid

Corredor, Laura M.; Cañas, María Carolina Ruíz; Rojas, Jorge Alberto; Llanos, Sebastián; Castro-García, Rubén-Hernán; Manrique, Eduardo; Bohórquez, Arnold R. Romero

doi:10.1021/acs.energyfuels.1c01489

Cited by 10 publications

(6 citation statements)

References 64 publications

(79 reference statements)

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“…An acceleration of the oil production was observed for the HPAM injection, although the final recovery factor of the nanopolymer sol was 1.3% higher at a lower concentration ( Figure 14 , green line). This oil recovery is comparable to that obtained in the laboratory tests previously reported by Corredor et al (2021), 73 where the displacement experiments showed that the nanopolymer sol increased the cumulative oil recovery by 2.2% OOIP compared to the HPAM solution. These results were attributed to the reduction of the capillary forces, the increment of the viscous forces, 73 and the contact of unswept oil areas due to the piston-like displacement of the chase water after the nanopolymer sol injection.…”

Section: Resultssupporting

confidence: 89%

“…The differential pressures obtained by numerical simulation and the laboratory displacement tests 73 were similar. The differential pressures estimated by numerical simulation during the CSNH-AC and HPAM injections were 34.8 and 9.1 psi, respectively.…”

Section: Resultssupporting

confidence: 56%

“…The nanohybrid sol exhibited slightly higher viscosities at shear rate values below 100 s –1 than the HPAM solution at a lower concentration due to the NP/polymer interaction. 73 At higher shear rates, the viscosity of both solutions drops until they reach brine viscosity (infinite viscosity of the Carreau–Yasuda model).…”

Section: Resultsmentioning

confidence: 99%

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Flow Behavior through Porous Media and Displacement Performance of a SILICA/PAM Nanohybrid: Experimental and Numerical Simulation Study

Corredor,

Espinosa,

Delgadillo

et al. 2024

ACS Omega

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Nanoparticles (NPs) have been proposed as additives to improve the rheological properties of polymer solutions and reduce mechanical degradation. This study presents the results of the retention experiment and the numerical simulation of the displacement efficiency of a SiO 2 /hydrolyzed polyacrylamide (HPAM) nanohybrid (CSNH-AC). The CSNH-AC was obtained from SiO 2 NPs (synthesized by the Stober method) chemically modified with HPAM chains. Attenuated total reflection−Fourier transform infrared spectroscopy, field emission gun−scanning electron microscopy, X-ray diffraction, and thermogravimetric analysis were used to characterize the nanohybrid. The injectivity and dynamic retention tests were performed at 56 °C in a sandstone core with a porosity of ∼26% and a permeability of 117 and 287 mD. A history matching of the dynamic retention test was performed to determine the maximum and residual adsorption, IPV, and residual resistance factor (RRF). A laboratory-scale model was used to evaluate the displacement efficiency of CSNH-AC and HPAM through numerical simulation. According to the results, the nanohybrid exhibits better rheological behavior than the HPAM solution at a lower concentration. The nanopolymer sol adsorption and IPV (29,7 μg/g rock , 14,5) are greater than those of the HPAM solution (9,2 μg/g rock , 10), which was attributed to the difference between the rock permeabilities used in the laboratory tests (HPAM: 287 mD and CSNH-AC: 117 mD). The RF of both samples gradually increases with the increase in shear rate, while the RRF slightly decreases and tends to balance. However, the nanopolymer sol exhibits greater RF and RRF values than that of the polymer solution due to the strong flow resistance of the nanohybrid (higher retention in the porous media). According to the field-scale simulation, the incremental oil production could be 295,505 and 174,465 barrels for the nanopolymer sol and the HPAM solution, respectively (compared to waterflooding). This will represent an incremental recovery factor of 11.3% for the nanopolymer sol and 6.7% for the HPAM solution.

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 56%

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Flow Behavior through Porous Media and Displacement Performance of a SILICA/PAM Nanohybrid: Experimental and Numerical Simulation Study

Corredor,

Espinosa,

Delgadillo

et al. 2024

ACS Omega

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“…Li et al conducted flow setup of a ternary composite oil repellent system in a sand-filled tube model and investigated the effects of wettability, permeability, and percolation distance on chromatographic separation of the ternary composite oil repellent system . The same experiment is set on artificial homogeneous core by Corredor, and the effects of injection volume, viscosity, and injection method on oil-repellent effect and chromatographic separation were studied. − Liu et al analyzed the effects of injection rate and core permeability on chromatographic separation at the entrance end of cores on oil-free homogeneous cores . In the alkali-free ternary composite system, the component salt itself has a passivating effect with the metal surface.…”

Section: Introductionmentioning

confidence: 99%

“… 12 The same experiment is set on artificial homogeneous core by Corredor, and the effects of injection volume, viscosity, and injection method on oil-repellent effect and chromatographic separation were studied. 13 − 15 Liu et al analyzed the effects of injection rate and core permeability on chromatographic separation at the entrance end of cores on oil-free homogeneous cores. 16 In the alkali-free ternary composite system, the component salt itself has a passivating effect with the metal surface.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Component Transfer and Oil Drive of Nonalkali Ternary Emulsion Systems

Liu,

Wu,

et al. 2023

ACS Omega

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So far, alkali/surfactant/polymer flooding is widely used in oilfields to improve recovery. However, the introduction of alkali to the ternary composite leads to substantial damage formation, accelerates the scaling and corrosion loss in all aspects of surface injection and recovery, and consequently increases the cost of oil recovery in the ternary composite drive field. Therefore, environmentally friendly means are in urgent demand. Alternatively, a new non-alkali ternary drive system with salt instead of alkali has been developed based on the basis of ternary composite drive in the Daqing oilfield. In this experiment, a mathematical model of oil repelling by a salt-substituted alkali-free ternary emulsion system is formed, followed by the verification of the wet-lab experiments. The results show that the alkali-free ternary emulsion system can have a synergistic effect of complex salt and petroleum sulfonate surfactant and represents a wide range of ultralow interfacial tensions and good oil-repelling performances. The chromatographic separation occurs in the transmission process due to the adsorption of porous media, and the lower the permeability and the lower the injection rate, the higher the chromatographic separation degree. The use of multistage plug injection can narrow the difference of flow rate between high and low permeability layers and improve the recovery rate to 61.59%. Herein, the results provide theoretical guidance for the application of an alkali-free ternary emulsification system.

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A Comprehensive Investigation of Nanocomposite Polymer Flooding at Reservoir Conditions: New Insights into Enhanced Oil Recovery

Salem,

Tantawy

et al. 2024

J Polym Environ

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Recently, the polymer-nanoparticle combination has garnered significant interest in enhanced oil recovery (EOR) due to its promising experimental results. However, the previous research was mostly directed at silica, while alumina and zirconia nanoparticles have gotten the least consideration. Unlike previous works, this study aims to investigate the influence of three NPs: Silica (SiO2), Alumina (Al2O3), and Zirconia (ZrO2) on hydrolyzed polyacrylamide (HPAM). To this end, three nanocomposites were formulated: HPAM-SiO2, HPAM-Al2O3, and HPAM-ZrO2. Rheological evaluations were performed to examine the viscosity degradation of the three nanocomposites and HPAM under reservoir conditions. Furthermore, interfacial tension (IFT) at the oil–water interface and wettability studies were investigated. Moreover, sand-pack flooding was performed to examine the incremental oil recovery. The results revealed that the polymer viscosity was boosted by 110%, 45%, and 12% for HPAM-SiO2, HPAM-Al2O3, and HPAM-ZrO2 respectively under the investigation range of temperature. Moreover, the polymer viscosity was improved by 73%, 48%, and 12% for HPAM-SiO2, HPAM-Al2O3, and HPAM-ZrO2 respectively under the investigation range of salinity. Nanocomposites are also found to be a remarkable agent for reducing interfacial tension and changing the contact angle. The flooding experiments confirmed that the EOR by HPAM, HPAM-SiO2, HPAM-Al2O3, and HPAM-ZrO2, was 8.6%, 17.4%, 15.3%, and 13.6% of OOIP respectively. Moreover, the results of flooding experiments were well validated and matched by numerical simulation. Such findings of this work afford new insights into EOR and reinforce the promising outlook of such technique at the field scale.

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Oil Displacement Efficiency of a Silica/HPAM Nanohybrid

Cited by 10 publications

References 64 publications

Flow Behavior through Porous Media and Displacement Performance of a SILICA/PAM Nanohybrid: Experimental and Numerical Simulation Study

Flow Behavior through Porous Media and Displacement Performance of a SILICA/PAM Nanohybrid: Experimental and Numerical Simulation Study

Numerical Simulation of Component Transfer and Oil Drive of Nonalkali Ternary Emulsion Systems

A Comprehensive Investigation of Nanocomposite Polymer Flooding at Reservoir Conditions: New Insights into Enhanced Oil Recovery

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