Paper Title
Reducing Torque and Drag in Extended Reach Wells

Abstract
Drilling an extended reach well acquires precise engineering in drilling the deviated and horizontal section of the well as there are a lot of technical problems that can appear in these sections. The biggest issues that appear in the deviated and horizontal sections of the well are high values of friction factor that leads to high values of torque and drag, material wear of the joints, and inadequate cleaning of the well from cuttings. High values of torque moment and drag force represent a big problem when drilling directional wells, and in general affect the possibility of reaching the designed path of the well. One of the solutions to reduce torque and drag is to applicate lubricants in the drilling fluid to reduce the friction that appears when drill string is in contact with casing or borehole. Normally one method doesn't always solve the issue alone, so in conjunction with adding lubricants to water-based mud system, another solution is to add a protective ring on the tool joints/pipe body of the drill string that would be made from materials that could reduce friction and wear. Protective rings would be made from materials that have been used in the industry to produce various mechanical elements. In this paper lubricants will be tested in different concentrations to conclude the optimal concentration to be used in water-based drilling fluid and which material for the protective rings to be used for eventual practical use. Keywords - Extended Reach Drilling, Friction Factor, Torque And Drag, Mechanical Wear, Lubricants, Protective Ring.