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What modifications/addition equipment is required to integrate EC-Drill® onto a rig?

Integrating EC-Drill® onto a rig requires a Modified Riser Joint (MRJ), Mud Return Line (MRL), minimal surface lines, and a top fill pump to support system operation.

The main items required to integrate EC-Drill® onto the rig are:

  • Modified Riser Joint (MRJ) – this is a riser joint with port to allow EC-Drill® to take suction from the riser, the modified riser joint also includes the Riser Isolation Valves (RIV) and can be used for mounting the EC-Drill® Subsea Pump Module (SPM).
  • Mud Return Line (MRL) – the conduit to convey Mud and Cuttings to surface from the SPM. 
  • Surface lines – the surface line installation is minimal, consisting mainly of a mud return line with flow meter to the low-pressure mud system. 
  • Top fill pump – this is a small pump taking suction from active system and pumping into the top of the riser to provide a flow of mud to ensure the mud above the EC-Drill® SPM is fresh and at the same density.