Blar i Faculty of Science and Technology på forfatter "Qajar, Jafar"
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An approach for optimization of controllable drilling parameters for motorized bottom hole assembly in a specific formation
Yavari, Hossein; Fazaelizadeh, Mohammad; Aadnøy, Bernt Sigve; Khosravanian, Rasool; Qajar, Jafar; Sedaghatzadeh, Mostafa; Riazi, Masoud (Peer reviewed; Journal article, 2023)This study focuses on optimizing drilling parameters when using Positive Displacement Motors (PDMs). In drilling operations involving mud motors, weight-on-bit (WOB) alterations lead to variations in the system's parasitic ... -
Selection of Optimal Well Trajectory Using Multi-Objective Genetic Algorithm and TOPSIS Method
Yavari, Hossein; Qajar, Jafar; Aadnøy, Bernt Sigve; Khosravanian, Rasool (Peer reviewed; Journal article, 2023)This study presents a novel approach for optimizing well paths in extended reach drilling (ERD) wells. Different trajectories can be used for ERD wells, each with its pros and cons. Previous research overlooked certain ...