Case Study: EC-Drill® – Troll field, North Sea
By applying the EC-Drill® Controlled Mud Level system on the Troll field, it assisted a major operator in extending the well lengths, hence, prolonging life of field.
- CHALLENGE: Limited running speeds due to surge pressure through weak sands with long horizontal Open Hole screens.
- SOLUTION: Using the EC-Drill® system, it enabled the reduction of fluid level to compensate for the surge pressure while running pipe.
- RESULTS: Surge pressure reduced, tripping speed increased by 50 per cent and rig time was saved during tripping operations.