Wettability alteration of oil-wet carbonate surface induced by self-dispersing silica nanoparticles: Mechanism and monovalent metal ion's effect

Hou, Baofeng; Jia, Ruixiu; Fu, Meilong; Wang, Yefei; Jiang, Chen; Yang, Zhen; Huang, Ying‐Fong

doi:10.1016/j.molliq.2019.111601

Cited by 39 publications

(37 citation statements)

References 42 publications

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“…Nanofluid concentration is one of the crucial factors in applications of nanofluid flooding, where nanoparticles Fig. 4 Mechanism of wettability alteration of oil wet carbonate surface rock by silica nanofluid (Hou et al 2019) become more efficient with increased concentration. In some investigations, the researchers focused on determining the nanoparticle concentration ranges in addition to their effect on wettability alteration.…”

Section: Nanoparticle Concentrationmentioning

confidence: 99%

The effect of nanoparticles on reservoir wettability alteration: a critical review

2020

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A novel concept of treating oil reservoirs by nanofluids is being developed to improve oil recovery and reduce the trapped oil in hydrocarbon reservoirs. Nanoparticles show great potential in enhancing oil recovery under ambient conditions. In this paper, the approaches of wettability alteration by using nanofluid, stability of nanofluids, and the most reliable wettability alteration mechanisms associated with variant types of nanoparticles have been reviewed. Moreover, the parameters that have a significant influence on nanofluid flooding have been discussed. Finally, the recent studies of the effect of nanoparticles on wettability alteration have been summarised and analysed. Furthermore, this paper presents possible opportunities and challenges regarding wettability alteration using nanofluids.

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Section: Nanoparticle Concentrationmentioning

confidence: 99%

The effect of nanoparticles on reservoir wettability alteration: a critical review

2020

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“…In order to explore the mechanism underlying the synergistic effect of surfactants and nanofluids, their effect on wettability alteration was assessed through contact angle measurements. Calcium carbonate is the main component of carbonate asphalt rocks; therefore, calcite was chosen to represent the minerals of carbonate asphalt rocks [ 18 , 19 , 30 ]. Oil-wet calcite was prepared to represent the actual carbonate rock surface.…”

Section: Resultsmentioning

confidence: 99%

“…Cheraghian et al reviewed the nanotechnology of enhanced oil recovery processes, and wettability was considered the key mechanism determining the enhancement of this process [ 17 ]. Hou et al [ 18 ] assessed the effect of silica nanoparticles on the alteration of the wettability of oil-wet carbonate surfaces, studying the effect of the monovalent metal ion. The results showed that the silica nanoparticles could effectively adsorb onto the calcite surface, which made the surface water-wet, and that Na + played an important role during the adsorption process.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Nanofluids and Surfactants on Heavy Oil Recovery and Oil-Wet Calcite Wettability

Hou

Sun

2021

Nanomaterials

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In recent years, unconventional oils have shown a huge potential for exploitation. Abundant reserves of carbonate asphalt rocks with a high oil content have been found; however, heavy oil and carbonate minerals have a high interaction force, which makes oil-solid separation difficult when using traditional methods. Although previous studies have used nanofluids or surfactant alone to enhance oil recovery, the minerals were sandstones. For carbonate asphalt rocks, there is little research on the synergistic effect of nanofluids and surfactants on heavy oil recovery by hot-water-based extraction. In this study, we used nanofluids and surfactants to enhance oil recovery from carbonate asphalt rocks synergistically based on the HWBE process. In order to explore the synergistic mechanism, the alterations of wettability due to the use of nanofluids and surfactants were studied. Nanofluids alone could render the oil-wet calcite surface hydrophilic, and the resulting increase in hydrophilicity of calcite surfaces treated with different nanofluids followed the order of SiO2 > MgO > TiO2 > ZrO2 > γ-Al2O3. The concentration, salinity, and temperature of nanofluids influenced the oil-wet calcite wettability, and for SiO2 nanofluids, the optimal nanofluid concentration was 0.2 wt%; the optimal salinity was 3 wt%; and the contact angle decreased as the temperature increased. Furthermore, the use of surfactants alone made the oil-wet calcite surface more hydrophilic, according to the following order: sophorolipid (45.9°) > CTAB (49°) > rhamnolipid (53.4°) > TX-100 (58.4°) > SDS (67.5°). The elemental analysis along with AFM and SEM characterization showed that nanoparticles were adsorbed onto the mineral surface, resulting in greater hydrophilicity of the oil-wet calcite surface, and the roughness was related to the wettability. Surfactant molecules could aid in the release of heavy oil from the calcite surface, which exposes the uncovered calcite surface to its surroundings; additionally, some surfactants adsorbed onto the oil-wet calcite surface, and the combined role made the oil-wet calcite surface hydrophilic. In conclusion, the study showed that hybrid nanofluids showed a better effect on wettability alteration, and the use of nanofluids and surfactants together resulted in synergistic alteration of oil-wet calcite surface wettability.

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“…As mentioned in Sections and , PBMA nanoparticles possess a smaller size in comparison with BMA nanoparticles. This vital characteristic assists them in having better dispersion in liquid phases, inducing more interactions with asphaltenes in synthetic oil. − Another reason for this phenomenon can be ascribed to the surface area of nanoparticles. Due to the fact that the surface area of PBMA is higher than BMA, it can provide an opportunity for PBMA to expose more of their body surface to asphaltene molecules, causing greater adsorption capacity …”

Section: Resultsmentioning

confidence: 99%

Investigating the Performance of Carboxylate-Alumoxane Nanoparticles as a Novel Chemically Functionalized Inhibitor on Asphaltene Precipitation

et al. 2020

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In recent years, researchers have attempted to find some practical approaches for asphaltene adsorption and the prevention or postponement of asphaltene precipitation. Among different techniques, nanotechnology has attracted the researchers' attention to overcome the formation damage resulting from the deposition of asphaltenes. In this study, the application of two types of carboxylate-alumoxane nanoparticles (functionalized boehmite by methoxyacetic acid (BMA) and functionalized pseudo-boehmite by methoxyacetic acid (PBMA)) for asphaltene adsorption and precipitation was investigated. First, the synthesis of two functionalized nanoparticles was performed via the sol− gel method. For the assessment of the adsorption efficiency and adsorption capacity of these nanoparticles toward asphaltene adsorption, the batch adsorption experiments applying ultraviolet−visible (UV−Vis) spectroscopy were performed. The Langmuir and Freundlich isotherms were studied to describe the interaction between asphaltene molecules and carboxylate-alumoxane nanoparticles. For determining the "onset" point of asphaltene precipitation, the indirect method, which was based on the difference in the optical property of various solutions containing different concentrations of asphaltene, was utilized by applying UV−Vis spectroscopy. The isotherm models indicate that the adsorption of asphaltene on the surface of nanoparticles is better fitted to the Freundlich isotherm model compared with the Langmuir model. In the presence of PBMA (0.1 wt %), the onset point was delayed around 26, 20, and 17% in the asphaltene concentrations of 1000, 3000, and 5000 ppm, respectively, in comparison with their reference synthetic oils. On the other hand, these postponements for BMA nanoparticles (0.1 wt %) were 17%, 9%, and insignificant for the asphaltene concentrations of 1000, 3000, and 5000 ppm, respectively. The results reveal that two functionalized nanoparticles tend to adsorb asphaltene molecules and have a positive impact on the postponement of asphaltene precipitation due to molecular interactions between the surface of carboxylate-alumoxane nanoparticles and asphaltene molecules. However, PBMA nanoparticles exhibited better performance on the asphaltene adsorption and postponement of asphaltene precipitation, which is related to its smaller size, as well as higher surface area, compared with BMA nanoparticles.

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Wettability alteration of oil-wet carbonate surface induced by self-dispersing silica nanoparticles: Mechanism and monovalent metal ion's effect

Cited by 39 publications

References 42 publications

The effect of nanoparticles on reservoir wettability alteration: a critical review

The effect of nanoparticles on reservoir wettability alteration: a critical review

Synergistic Effect of Nanofluids and Surfactants on Heavy Oil Recovery and Oil-Wet Calcite Wettability

Investigating the Performance of Carboxylate-Alumoxane Nanoparticles as a Novel Chemically Functionalized Inhibitor on Asphaltene Precipitation

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