Fabrication of ionic liquid-cellulose-silica hydrogels with appropriate thermal stability and good salt tolerance as potential drilling fluid

Betiha, Mohamed A.; Mohamed, Gehad G.; Negm, Nabel A.; Hussein, Modather F.; Ahmed, Hany El-Sayed

doi:10.1016/j.arabjc.2020.05.027

Cited by 29 publications

(11 citation statements)

References 37 publications

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“…Thus, the generated model for YP can be considered appropriate for the design space. These findings were in close agreement with the results reported by Betiha, et al [28].…”

Section: Model Fitting and Statistical Analysissupporting

confidence: 94%

Experimental Study of Bentonite-Free Water Based Mud Reinforced with Carboxymethylated Tapioca Starch: Rheological Modeling and Optimization Using Response Surface Methodology (RSM)

2021

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Drilling mud’s rheological characteristics, such as plastic viscosity and yield point, are adversely affected with an inappropriate mud formulation. Native starch is one of the most important components in water-based mud because it improves the rheological and filtration characteristics of the mud. The native starch stability under various temperature and exposure time regimes is an important concern for utilizing starch in oil and gas drilling operations. In this work, tapioca starch was modified using carboxymethylation for the first time in order to improve its performance in non-damaging water-based muds. The modified starch was characterized by Fourier-transform infrared spectroscopy and X-ray diffraction. The thermal stability was tested using thermal gravimetric analysis. Various mud blends were formulated based on the experimental design using response surface methodology (RSM) to investigate their performance at various temperature conditions. Thirty experimental runs were carried out based on the selected factors and responses considering the optimal (custom) design, and the results were analyzed through ANOVA. The Fourier-transform infrared spectroscopy and X-ray diffraction results confirmed the carboxymethylation of starch. The TGA analysis revealed strong thermal stability after modification. Additionally, the Power law model (PLM) described the obtained rheological data for the selected formulations, resulting in determination coefficients of more than 0.95. Furthermore, the examined samples showed a reduction in the flow behavior index from 0.30 to 0.21 and an increase in the consistency index from 5.6 to 15.1. Optimization and confirmation results revealed the adequacy of the generated empirical models for both plastic viscosity and yield point. The obtained consistency index values provided a direct relationship with the modified starch concentration, indicating an improvement in the cutting carrying capacity of mud. Based on the current literature survey, the studied formulation has not been reported in the literature.

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“…Thus, the generated model for YP can be considered appropriate for the design space. These findings were in close agreement with the results reported by Betiha, et al [28].…”

Section: Model Fitting and Statistical Analysissupporting

confidence: 94%

Experimental Study of Bentonite-Free Water Based Mud Reinforced with Carboxymethylated Tapioca Starch: Rheological Modeling and Optimization Using Response Surface Methodology (RSM)

2021

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“…The interaction of starch moieties and water molecules is characterized by the presence of a medium peak at 1642 cm -1 (O-H bending). The fingerprint peaks of starch can be seen in region 1200 to 950 cm -1 due to the presence of glycosidic rings (binding mode of -C-O-, -C-Cand -C-H-O groups) [14,24]. FTIR of bentonite (BT) shows peaks at 3700 cm -1 (stretching Al-OH-Si), 3632 cm -1 (stretching Al-OH-Mg), 3428 (stretching -OH), 1640 cm -1 (bending -OH), 1040 cm -1 (stretching -Si-O-Si-), 917 cm -1 (stretching (Si-O-Al), 798 cm -1 (Al-OH-Mg), 695 cm -1 (binding Si-O-Al), and 470 cm -1 (rocking Al-Mg-OH) [25,26].…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the researchers focused on studying some inorganic nanomaterials, such as the oxides of copper, iron, aluminum, zinc, silica, carbon, and graphene [9][10][11][12][13]. Similarly, organic nanoparticles such as nanocellulose, modified nanocellulose, protein, chitin, xanthan gum, polyacrylamide derivatives were used as rheological modifiers for drilling fluids [14][15][16]. These modifiers enhanced the viscosity of bentonite-water based mud not only at rest or lower shear rates but also improve the shearthinning behavior [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

High-Performance Rheology Modifiers and Fluid Loss of Starch-Bentonite Mixed System in Mud Fluids: Experimental and Optimization Study

et al. 2020

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The capability of drilling fluid to endure high temperatures is an important characteristic of drilling fluids. Natural polymers are commonly used as additives for drilling fluids to improve their rheological properties. Starch is one of them, that is extensively used in the drilling due to economics. However, the thermal stability of water-based mud included starch is low. Herein, diethanolamine is used to enhance the rheological and filtration loss properties of the water-based fluids (WBF) through chemical modification of Lewis acid sites in bentonite framework and the formation of a cross-linked hydrogen bond with the starch compound. The effect of starch as an additive to WBF was studied at 0.56% and 0.94% in the bentonite-based fluid. The revealed data indicated an apparent improvement had been achieved after the addition of starch (0.94%). The effect of diethanolamine (DEA) on the rheological properties of starch-bentonite system, DEA was used as an additive at three ratios of 0.19%, 0.37%, and 0.75, at 300 °F, 325 °F, 350 °F, and 375 °F. The obtained data indicated that both rheological and filtration loss properties were enhanced, eventually at elevated temperature of 350 °F. The interaction in bentonite-starch, bentonite-DEA, and bentonite-starch-DEA WBF was studied using FTIR, XRD, and Raman spectroscopy. The results indicated the formation of hydrogen bonds between all components, which increases the basal displacing between bentonite layers. That interaction leads to the enhancement of the rheological and filtration loss properties of the drilling fluid. The response surface methodology (RSM) was used with the central composite design to evaluate and improve the drilling fluid compositions in terms of various rheological parameters.

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“…Similar to the aforementioned biopolymers, AFM investigations on silica hydrogels mostly aimed at surface investigations. Betiha et al produced ionic liquid-cellulose-silica hydrogels and showed the surfaces of pure methylcellulose and the different nanocomposites [ 176 ]. Carvalho dos Santos et al prepared silica hydrogels with poly(melamine-formaldehyde) (PMF) and used AFM images for surface investigations [ 177 ].…”

Section: Applicationsmentioning

confidence: 99%

Atomic Force Microscopy (AFM) on Biopolymers and Hydrogels for Biotechnological Applications—Possibilities and Limits

2022

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Atomic force microscopy (AFM) is one of the microscopic techniques with the highest lateral resolution. It can usually be applied in air or even in liquids, enabling the investigation of a broader range of samples than scanning electron microscopy (SEM), which is mostly performed in vacuum. Since it works by following the sample surface based on the force between the scanning tip and the sample, interactions have to be taken into account, making the AFM of irregular samples complicated, but on the other hand it allows measurements of more physical parameters than pure topography. This is especially important for biopolymers and hydrogels used in tissue engineering and other biotechnological applications, where elastic properties, surface charges and other parameters influence mammalian cell adhesion and growth as well as many other effects. This review gives an overview of AFM modes relevant for the investigations of biopolymers and hydrogels and shows several examples of recent applications, focusing on the polysaccharides chitosan, alginate, carrageenan and different hydrogels, but depicting also a broader spectrum of materials on which different AFM measurements are reported in the literature.

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Fabrication of ionic liquid-cellulose-silica hydrogels with appropriate thermal stability and good salt tolerance as potential drilling fluid

Cited by 29 publications

References 37 publications

Experimental Study of Bentonite-Free Water Based Mud Reinforced with Carboxymethylated Tapioca Starch: Rheological Modeling and Optimization Using Response Surface Methodology (RSM)

Experimental Study of Bentonite-Free Water Based Mud Reinforced with Carboxymethylated Tapioca Starch: Rheological Modeling and Optimization Using Response Surface Methodology (RSM)

High-Performance Rheology Modifiers and Fluid Loss of Starch-Bentonite Mixed System in Mud Fluids: Experimental and Optimization Study

Atomic Force Microscopy (AFM) on Biopolymers and Hydrogels for Biotechnological Applications—Possibilities and Limits

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