Author : Engr. Abdul Qadir Shaikh , Prof. Dr. Abdul Haque Tunio and Engr. Mr. Shoaib Riaz, Mr. Waseem Arshad, Engr. Habibullah Sargani

As global demand for oil and gas increases, drilling directional and horizontal wells safely, efficiently and
economically requires the best in expertise and technology. The drilling strategy required to reach these targets
utilizes one of the several available directional drilling techniques which includes the use of Whipstock, Bent Sub,
conventional directional Bottom hole assemblies, Rotary steerable system and positive displacement mud motors. Poor well trajectories become the matter of serious worry in deep and deviated sections of the wells with higher dogleg severity, lower ROP, tolls stucking which causes huge economic loss to the operators. In worst case scenarios the inadequately drilled directional wells are abandoned. The main objective of this research study will be the intermediate drilling section of the well where the steering of the trajectories like directional drilling trajectories i.e. Slant well, S shaped well and Horizontal wells that will be considered for analysis. This study will analyze the performance of RSS and conventional mud motors, on the basis of rate of Penetration (ROP), drilling depth, and borehole quality.

Keywords: RSS, PDM, Mud Motors.

Article published in International Journal of Current Engineering and Technology, Vol.10, No.6 (Nov/Dec 2020)