Tackling wellbore difficulties for drilling deviated andhorizontal wells

Abstract

Future development plans are often being continued during production. These plans includes wells repair, reservoir enhancements, or new development wells in order to increase the field production. Therefore, the main objective of this paper is to tackle deviated and horizontal wellbore difficulties in GOF field. Specific drilling hole problems are addressed and reviewed. Additionally, proposed solutions are suggested to improve wellbore stability and select the appropriate hole cleaning drilling practices, based on offset data for drilling the new development wells of Gulf Offshore Field (GOF) without instability difficulties. Overview of this field is discussed including geological column, wells locations, and contour maps. Offset wells data are completely analyzed. Drilling fluids are selected with their properties that avoid wellbore obstructions. Moreover, deviated and horizontal trajectories are optimized for the new development wells. Finally, the best drilling practices are hence recommended