Wettability alteration in carbonate and sandstone rocks due to low salinity surfactant flooding

Aminian, Ali; ZareNezhad, Bahman

doi:10.1016/j.molliq.2018.11.080

Cited by 39 publications

(20 citation statements)

References 80 publications

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“…Wettability can be expressed as the tendency of a fluid to spread on or adhere to a solid surface in the availability of other immiscible liquids (Bera et al 2015). The contact angle (CA) refers to wettability alteration in the three-phase system, which can be described as the force balance between the spreading coefficient of water on a solid surface in contact with both oil and water (Aminian and ZareNezhad 2019). In laboratory experiments, different techniques are used to determine wettability, including CA measurement, Amott test, and core displacement (Agi et al 2018).…”

Section: Wettability Alteration Methodsmentioning

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: Wettability Alteration Methodsmentioning

confidence: 99%

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

2020

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“…Rock wettability on a surface exerts significant effects on fluid seepage . A strong water wet rock exerts strong adhesion effects on the water phase.…”

Section: Resultsmentioning

confidence: 99%

Preparation of SiO₂-Fluorinated Acrylate Polymer Nanoemulsions (SCFs) and Their Application as Depressurization and Injection Treatment Agents

Qiao

et al. 2022

Energy Fuels

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For water injection development in low-permeability reservoirs, nanoscale SiO2-fluorinated acrylate polymer nanoemulsions (SCFs) with good properties were prepared through core–shell emulsion polymerization. The results show that nano-SiO2 particles are well dispersed, the average particle size of the SCFs is 113 nm, and the synergy among fluoride chain segments is good and effectively improves the utilization of fluorine atoms. SCFs form a low-surface-energy nanoscale hydrophobic film on the rock surface, which changes the original rock surface micro- or nanostructure, resulting in a water contact angle of up to 120° at the core. At 60 °C, the interfacial tension (IFT) between a 1500 mg/L SCF dispersion and white mineral oil is 1.86 mN/m, decreasing by 95.67% relative to the oil–water IFT at room temperature. The core flooding experiment shows that the depressurization rate reaches 29.62% in the 1500 mg/L SCF dispersion. Therefore, SCFs have broad application prospects in processes that eliminate water lock, reduce injection pressure, and increase injection volume.

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“…Wettability alteration is considered to be one of the key mechanisms in the EOR techniques [ 19 ]. By modifying the rock wettability from an oil-wet to a highly water-wet system, nanoparticles played a significantly vital role in the production of hydrocarbons [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Laboratory Investigation of Nanofluid-Assisted Polymer Flooding in Carbonate Reservoirs

et al. 2022

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In the petroleum industry, the remaining oil is often extracted using conventional chemical enhanced oil recovery (EOR) techniques, such as polymer flooding. Nanoparticles have also greatly aided EOR, with benefits like wettability alteration and improvements in fluid properties that lead to better oil mobility. However, silica nanoparticles combined with polymers like hydrolyzed polyacrylamide (HPAM) improve polymer flooding performance with better mobility control. The oil displacement and the interaction between the rock and polymer solution are both influenced by this hybrid approach. In this study, we investigated the effectiveness of the injection of nanofluid-polymer as an EOR approach. It has been observed that nanoparticles can change rock wettability, increase polymer viscosity, and decrease polymer retention in carbonate rock. The optimum concentrations for hydrolyzed polyacrylamide (2000 ppm) and 0.1 wt% (1000 ppm) silica nanoparticles were determined through rheology experiments and contact angle measurements. The results of the contact angle measurements revealed that 0.1 wt% silica nanofluid alters the contact angle by 45.6°. The nano-silica/polymer solution resulted in a higher viscosity than the pure polymer solution as measured by rheology experiments. A series of flooding experiments were conducted on oil-wet carbonate core samples in tertiary recovery mode. The maximum incremental oil recovery of 26.88% was obtained by injecting silica nanofluid followed by a nanofluid-assisted polymer solution as an EOR technique. The application of this research will provide new opportunities for hybrid EOR techniques in maximizing oil production from depleted high-temperature and high-salinity carbonate reservoirs.

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Wettability alteration in carbonate and sandstone rocks due to low salinity surfactant flooding

Cited by 39 publications

References 80 publications

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

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

Preparation of SiO₂-Fluorinated Acrylate Polymer Nanoemulsions (SCFs) and Their Application as Depressurization and Injection Treatment Agents

Laboratory Investigation of Nanofluid-Assisted Polymer Flooding in Carbonate Reservoirs

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Wettability alteration in carbonate and sandstone rocks due to low salinity surfactant flooding

Cited by 39 publications

References 80 publications

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

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

Preparation of SiO2-Fluorinated Acrylate Polymer Nanoemulsions (SCFs) and Their Application as Depressurization and Injection Treatment Agents

Laboratory Investigation of Nanofluid-Assisted Polymer Flooding in Carbonate Reservoirs

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Preparation of SiO₂-Fluorinated Acrylate Polymer Nanoemulsions (SCFs) and Their Application as Depressurization and Injection Treatment Agents