Browsing by Author "Hammadi, Larbi"

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    An ecological water‑based drilling mud (WBM) with low cost: substitution of polymers by wood wastes
    (Springer, 2019) Haider, Soumia; Messaoud‑Boureghda, Mohamed‑Zine; Aknouche, Hamid; Akkouche, Ali; Hammadi, Larbi; Safi, Brahim
    An ecologically friendly water-based drilling mud (WBM) was designed by using wood wastes (WP: wood powder) in order to substitute the organic polymers which are very expensive and often make the higher cost of the oil well drilling. This present work is dedicated on studying the rheological behavior and main rheological properties of WBM containing the wood powder at different contents and sizes by substitution of usually used polymers. The effect of wood powder on the drilling fluid filtrate was also analyzed. The drilling fluid that was developed has better rheological properties and fluid loss control which are required for a good functioning of oil well drilling. By a total substitution of polymers, the wood powder (300 μm at 850 kg/m3) can be used as a filtrate reducer of mud because the WBM filtrate obtained exhibits a minimum and having requested values for such formation
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    Effects of poly-sal polymer and barite addition on rheological properties of algerian bentonite
    (EBSCOHOST, 2021) BacHir belmahdi, ilyes; Malek, Abderrahmane; Hammadi, Larbi
    In this paper, we investigate the effect of Poly-Sal polymer and barite on the rheological properties of bentonite of Maghnia (western Algeria). The modified Cross model is used to fit the stationary flow curves of bentonite at different concentrations of Poly-Sal add in base bentonite (4%) and the generalized model of Kelvin-Voigt is successfully applied to fit the creep and recovery data and to analyze the viscoelastic properties of the mixture Bentonite-Barite. Finally, the thixotropic behavior studied of the mixture Bentonite-Barite at constant temperature is analyzed by using a structural kinetic model (SKM) in order to account for the time dependent effect. It is demonstrated that the increase in quantity of barite in base bentonite induces a restructuring and reorganization of the particles of the bentonite at the microstructural level.