Faculty of Mechanical Engineering, University of Oklahoma, USA
Ramadan M Ahmed is Faculty of Mechanical Engineering,University of Oklahoma ou Mewbourne School of Petroleum and Geological Engineering Doctor of Philosophy in Petroleum Engineering. University of Oklahoma, USA. His Senior Research Associate in Department of Petroleum Engineering, Tulsa, United States. His international experience includes various programs, contributions and participation in different countries for diverse fields of study.
Research
Mathematical Modeling of Axial Oscillation Tools in High-Angle Wells
Author(s): Emmanuel Omojuwa*, Ramadan Ahmed and James Acquaye
Experimental and field studies continue to demonstrate that downhole vibrations induced by axial oscillation
tools (AOTs) in the drill string are the most efficient method for reducing friction and improving axial force transfer
in high-angle and extended-reach wells. Modelling the dynamic response of AOT-involving drill string systems is of
high importance for validating functional tests of oscillation tools and predicting their performance under downhole
conditions. This study presents a mathematical model used for predicting the dynamic response of axial oscillationsupported
drill string (AOSD) systems under the surface and downhole conditions. The model is useful to perform
placement analysis of axial oscillation tools within the bottom hole assembly. Nonlinear equations of motion and
introduction of displacement excitation in the model development make it dif.. View more»