This report is a case history of drilling well ClOin the Statfjord Field. The well is a world record in Extended Reach Drillingwith ahorizontal reach of5003 meters (16414 ft). This report will mainly concentrate on planning and executing the work; how torque, drag, holecleaning, welbore stability and surveying were handled through careful planning, follow-up and performance on the rig.

This report is a case history of drilling well ClOin the Statfjord Field. The well is a world record in Extended Reach Drillingwith ahorizontal reach of5003 meters (16414 ft). This report will mainly concentrate on planning and executing the work; how torque, drag, holecleaning, welbore stability and surveying were handled through careful planning, follow-up and performance on the rig.