Mécanique des chantiers pétroliers

Permanent URI for this collectionhttps://dspace.univ-boumerdes.dz/handle/123456789/4058

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Author: search.filters.author.Sahnoune, Khaled (Promoteur)Subject: search.filters.subject.Génie mécanique

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    Expansion optimization for "LM 2500" Gas Turbine at "CPF" in "MLE"
    (Université M’Hamed Bougara Boumerdès : Faculté des Hydrocarbures et de la Chimie, 2025) Miradi, Noureddine; Sahnoune, Khaled (Promoteur)
    The LM2500 gas turbine plays a crucial role in energy production within the Menzel Ledjmet Est (MLE) field. This thesis investigates the optimization of turbine expansion to enhance performance and efficiency. The study evaluates how key parameters—namely inlet temperature, mass flow rate, and rotational speed—affect turbine behavior using Computational Fluid Dynamics (CFD) simulations via ANSYS BladeGen, TurboGrid, and CFX. A mesh sensitivity study ensured accurate and stable results. The findings demonstrate how these parameters influence torque, power output, and flow characteristics, helping identify optimal operational conditions. Additionally, the thesis discusses a maintenance strategy for the LM2500, addressing scheduled and unscheduled inspections to improve reliability and reduce downtime. This work contributes to operational optimization, cost reduction, and improved energy efficiency in the oil and gas industry.
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    Performance optimization study of a "Turbo-Drill"
    (Université M’Hamed Bougara Boumerdès : Faculté des Hydrocarbures et de la Chimie, 2025) Chine, Badis; Kerour, Lokmane; Sahnoune, Khaled (Promoteur)
    This Thesis explores the design and performance of turbo-drills, downhole hydraulic motors that convert drilling fluid energy into mechanical rotation to drive the drill bit. Turbo-drills offer advantages over conventional surface-driven systems, including higher stability, reduced drill string stress, and improved efficiency in deep or complex wells. The work focuses on how variations in blade geometry influence the overall performance of the tool. Using numerical modeling in ANSYS, different blade parameters such as inlet angle, outlet angle, thickness, and number of blades were systematically studied. The results highlight that blade geometry strongly affects torque, power output, with the outlet angle proving to be the most influential factor. The study provides insights into the role of blade design in optimizing turbo-drill efficiency and establishes a methodological framework for future improvements in downhole turbine technology.