Use of New Technologies for Optimum Drilling Riser Configuration in Deepwater

Event:
Use of New Technologies for Optimum Drilling Riser Configuration in Deepwater
Date:
June 1997
Author:
H. Howells, J. Bowman

In deeper water, drilling riser systems are subjected to increased loads and maximising productive rig time is more difficult. Operators are faced with the need to assess the suitability of drilling facilities for their developments and drilling contractors must choose between making the most of what they=ve got, upgrading, or procurement of new facilities. Assessing the adequacy of existing equipment is a complex process. Riser fitness-for-purpose is not only affected by rig tension capacity but also by buoyancy arrangement, hang-off control, wellhead configuration and local environmental conditions. Much can be done to optimise riser usage through increased attention to riser configuration and improvements to operational procedures. The design issues which must be addressed, impact of deeper water and methods of optimising riser usage are described.

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