Drilling Riser Protection System

Offentlig prosjektsammendrag

Development of a safety system for protection of drilling risers. When drilling in deep water, there is an increased likelihood that gas will accidentally enter the riser, which can lead to major damage to equipment and crew, as well as uncontrolled discharges to the sea and atmosphere. This can be avoided by installing a safety system consisting of a computer-controlled pressure relief valve, which ensures that excess drilling mud is discharged from the system in case of a blocked riser outlet. The unique part with the invention is that the relief system is from the riser bottom through the booster line. This idea will contribute to a higher safety level and reduced cost associated with drilling and riser gas handling in deep water.