Crystal growth of magnesium oxide nanocompounds for wetting alteration of carbonate surfaces

Khiabani, Nahid P.; Fakhroueian, Zahra; Bahramian, Alireza; Vatanparast, Hamid

doi:10.1007/s11696-019-00805-x

Cited by 8 publications

(7 citation statements)

References 59 publications

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“…Experiments show that pH is an important factor in wettability change . When preparing nanofluids, it is also common to add chemicals for pH value control . Dolomite rock has an isoelectric point 2–3 units lower than that of limestone rock, indicating that dolomite has a more positive surface charge and thus is more attractive toward negatively charged materials.…”

Section: Wettability Modifiersmentioning

confidence: 99%

“…Properties of nanofluids are significantly influenced by chemicals added, such as surfactants and acids. With different additives, nanofluids can have very different performance in wettability alteration or even fail in changing wettability . A mixture of nanoparticles and surfactants can result in a significant change in surfactant surface activity due to strong interaction between nanoparticles and surfactant molecules .…”

Section: Wettability Modifiersmentioning

confidence: 99%

“…Longer than 3 days, some disorder on the nanostructured surface could happen, which increased the contact angle. They suggested that different treatment times resulted in different nucleation rates, which in turn leads to different crystal structures on rock surfaces …”

Section: Wettability Modifiersmentioning

confidence: 99%

“…138 When preparing nanofluids, it is also common to add chemicals for pH value control. 139 Dolomite rock has an isoelectric point 2−3 units lower than that of 133,134 Energy & Fuels limestone rock, indicating that dolomite has a more positive surface charge and thus is more attractive toward negatively charged materials. As a result, negatively charged nanoparticles, uncoated SiO 2 for example, reach better wettability alteration performance on dolomite than limestone.…”

Section: Energy and Fuelsmentioning

confidence: 99%

“…With different additives, nanofluids can have very different performance in wettability alteration or even fail in changing wettability. 139 A mixture of nanoparticles and surfactants can result in a significant change in surfactant surface activity due to strong interaction between nanoparticles and surfactant molecules. 136 Recently, a new type of nanofluid has been proven to improve carbonate recovery remarkably without surfactant and stabilizer.…”

Section: Nanofluid Preparationmentioning

confidence: 99%

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A Review on Wettability Alteration in Carbonate Rocks: Wettability Modifiers

et al. 2019

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More than half of the global oil reserves are in carbonate reservoirs. Carbonate rocks, however, in most cases tend to be mixed-wet or oil-wet. Wettability alteration of carbonate reservoir rock has been proven to increase oil recovery significantly. Several chemicals have shown their effect on wettability; however, selection of an appropriate wettability modifier should be made on the basis of the underlying mechanisms and their behavior at reservoir conditions. This review discusses techniques that can help in assessing wettability alteration or reflect on the underlying mechanism and describes several categories of wettability modifiers focusing on their structure−property relationship and factors affecting their performance at reservoir conditions. Surfactants, nanoparticles, salts, and alkalis are four major categories of wettability modifiers that are discussed in this review. Among surfactants, gemini surfactants have great potential and could be a major focus of future research in this area. Nanoparticles are relatively novel materials for wettability alteration with the capability to reduce contact angle significantly at low cost. This review also identifies the current and future challenges related to the performance of various wettability modifiers at high-temperature and high-salinity conditions.

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Section: Wettability Modifiersmentioning

confidence: 99%

Section: Wettability Modifiersmentioning

confidence: 99%

Section: Wettability Modifiersmentioning

confidence: 99%

Section: Energy and Fuelsmentioning

confidence: 99%

Section: Nanofluid Preparationmentioning

confidence: 99%

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A Review on Wettability Alteration in Carbonate Rocks: Wettability Modifiers

et al. 2019

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Inverse multiquadric kernel‐based neuro heuristic approach to analyze the unsteady MHD nanofluid flow via permeable elongating surface

Butt,

Ahmad,

Hussain

et al. 2023

Z Angew Math Mech

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In this study, a novel neuro heuristic approach is designed to investigate the flow properties of magnetohydrodynamic (MHD) nanofluid along an exponentially extending sheet with a permeable medium with the impact of radiation as well as fluctuating heat source/sink. The designed scheme to handle the suggested problem is established through the well‐known biologically inspired neural networks (BINNs) by exploiting the inverse multiquadric kernel (IMQK), that is, BINNs‐IMQK which is quite a new approach. The partial differential equations (PDEs) which govern the fluidic flow are reformed into a nonlinear system of ordinary differential equations (ODEs) using the most fitted similarity transformations rules and numerically solved by varying the parametric values including unsteady parameter, Brownian motion parameter, suction/injection parameter, radiation parameter, Schmidt number together with Prandtl number to visualize the velocity, thermal gradient, and mass transfer in the suggested fluid problem. It is noticed that nanofluid temperature hikes by uplifting the value of the Brownian motion parameter but this effect is reversed in case of unsteady parameter. The obtained numerical results are verified through reference solution using the well‐known Adams method and the efficacy of the suggested solver is endorsed using a variety of statistical operators.

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