Drilling Riser/Well System Interaction in Deep Water, Harsh Environments

Event:
Drilling Riser/Well System Interaction in Deep Water, Harsh Environments
Date:
January 1997
Author:
H. Howells, J. Bowman

Drilling riser configuration and wellhead system design practices adopted for shallow water, mild environment applications are being extended for use in deeper waters and harsher environments. The riser and wellhead system are subjected to more severe loading conditions and considerable effort may be needed to improve operating windows for drilling, coiled tubing and well test operations, in order to minimise idle rig time. Interaction of the drilling riser with the wellhead and conductor system must be carefully considered when optimising response for deep water harsh environments. The key design issues which must be addressed, methods by which response can be assessed and means by which operating windows can be improved are described.

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