Publications

Extended Reach Drilling is one process that is almost being used in every drilling operation. Since most of the reservoirs contain hydrocarbons that are either very deep into the formation or are covered with very troublesome formations, sidetracking would be necessary to reach these areas. Using Extended Reach Drilling in the correct way would be economic to the companies that can earn greater profits, especially for cases where only one rig can be used to drill several wells (e.g. Sakhalin field). However, Extended Reach Drilling is not a simple method where many parameters can influence the success of the operation such as the wellbore stability, Equivalent Circulating Density, Torque and Drag trends. For this reason, the well should be designed in special ways taking into consideration these factors.