Browsing by Author "Bezzekhami, Mohammed Amin"

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Comparative investigation of the effect of eggshellpowder and calcium carbonate as additivesin Eco-Friendly polymer drilling fluids
(MDPI, 2023) Sid, Asma Nour El Houda; Tahraoui, Hichem; Kebir, Mohammed; Bezzekhami, Mohammed Amin; Kouini, Benalia; Hassein-Bey, Amel Hind; Toumi, Selma; Amrane, Abdeltif; Imessaoudene, Ali
Drilling fluid systems have seen the addition of new natural additives in recent years in order to replace traditional additives, improve their rheological properties, and ensure the functionality of the drilling fluid taking into account health and environmental factors. This paper aims to study and compare the effect of the addition of eggshell powder (ESP) as a native and local additive and calcium carbonate (CC) as a traditional and conventional additive on the rheological and filtration properties of the drilling fluid system based on Na-bentonite of the region of Meghnia (Algeria). The test results of 10, 20, and 30 g of CCwerecompared to the same concentrations of ESP.The findings showed that the CC with various concentrations (10, 20, and 30 g) increases the rheological properties and the mud density while it reduces the filter cake and the fluid loss values which are desirable, calcium carbonate had aslightly higher effect on the pH. The obtained results following the addition of ESP with different ratios revealed that the latter has a considerable impact on the plastic viscosity, the yield point, the gel strength, and the cake thickness. Additionally, the effect of the presence of eggshell as an additive in pH, fluid loss, and mud density was studied; we observed a slight increase in the pH, while the fluid loss values decreased. However, the mud density values increased. Beyond 20 g of eggshell, the properties of the mud becomeundesirable. Moreover, this study contributes tonewfindings and suggests that the utilization of waste food and local goods in drilling mud mixtures has a bright future respecting the percentages of use
Improving the Environmental Sustainability through Efficient Recycling and Valorization of Polypropylene (PP)/Polyamide 66 (PA66)/Nanoclay Nanocomposite Blends with Recycled Polypropylene
(Taylor and Francis Ltd, 2024) Sid, Asma Nour El Houda; Kouini, Benalia; Bezzekhami, Mohammed Amin
Polypropylene/polyamide 66 composites were enhanced by introducing a polypropylene anhydrous melamine graft agent (PP-g-AM) and by adding different contents of recycled polypropylene (rPP). The composite was prepared using an internal mixer. Our research described here aimed to investigate the processing, production, and characteristics of the synthesized nanocomposites. The properties and structure of the mixtures were summarized to determine the optimal ratio of adding rPP in the nanocomposite (rPP/PP-g-AM/PA66). To comprehend the impact of rPP on the properties of the nanocomposite and the effectiveness of adding rPP for polymer blends/clay nanocomposites, we performed a rheological study and evaluated the mechanical, thermal, and barrier properties. X-ray diffraction analysis demonstrated the formation of an exfoliated structure of the mixtures of PP/PP-g-MA/PA66 reinforced with rPP. Through significant mechanical improvement, the mixtures showed better resistance to impact forces. Thermal analysis highlighted an increase in the mixtures’ stability under heat. Additionally, the carefully designed mixtures presented interesting barrier qualities.
Optimization of partially hydrolyzed polyacrylamide (HPAM) utilized in water-based mud while drilling
(MDPI, 2023) Sid, Asma Nour El Houda; Kouini, Benalia; Bezzekhami, Mohammed Amin; Toumi, Selma; Ouchak, Khadidja; Benfarhat, Sara; Tahraoui, Hichem; Kebir, Mohammed; Amrane, Abdeltif; Assadi, Aymen Amine; Zhang, Jie; Mouni, Lotfi
Water-soluble polymers are becoming increasingly important in various applications, such as stabilizer fluids and drilling muds. These materials are used as viscosifiers and filtration control agents, flocculants, and deflocculants due to their superior properties in increasing viscosity and gelling ability in the presence of crosslinkers. In general, studying the rheological behavior of drilling fluids is of paramount importance to ensure successful well drilling operations. Partially hydrolyzed polyacrylamide is one of the polymers widely used in water-based muds. The main objective of this study is to optimize the rheological properties of drilling muds through a characterization study of various parameters, including rheological behavior, viscosity, temperature (23 °C, 40 °C, and 60 °C), salinity using KCl and NaCl contents, aging, pH, solubility, and structural analysis using infrared of partially hydrolyzed polyacrylamide. The study aims to demonstrate the importance of using polymers in drilling muds. The findings revealed that a rate of 3% of HPAM gave better rheological behavior, the influence of KCl (1.5%, 3%, and 4.5%) was greater than that of NaCl (1.5%, 3%, and 4.5%) on polymers, and the aging test showed that the different formulations are stable and maintain their behavior up to 110 °C. The solubility test results confirmed the maximum amount absorbed by polyacrylamide ([CHPAM] = 66.42 g/L) in order to avoid aggregation, gelification, and enhance the drilling mud by utilizing the prescribed contents