1992 · 14 citations · 0 references
EngineeringPetroleum EngineeringDrillingDrilling EngineeringSurveyingDrilling OperationsExtended-reach DrillingHorizontal DrillingWell ControlWell PlanningExtended-reach Well CleaningExtended-reach Well Hole CleaningExtended-reach Well PlanningHole Section DesignHorizontal Well DrillingHydraulic Hole CleaningWell Path DesignWellbore Surveying
ABSTRACT This paper is a case history of the drilling of well C3 from the Statfjord ‘C’ platform, currently the world record in Extended Reach Drilling. The horizontal reach is 6086 m (19 968 ft) and the measured depth 7250 m (23 787 ft), with a sail angle of 80 degrees in the 12 1/4″ hole section. This paper will concentrate on the important aspects of well planning, such as well profile, torque, drag, hole cleaning and surveying, and how the work was executed.