Fatigue Challenges from Deepwater Drilling Operations

Event:
MODU
Date:
March 2014
Author:
S. Natarajan, L. Shen Ching, L. Kian Giap

Conclusions:

  • Fatigue loading has been an increasing cause of concern due to:
    • Environment uncertainty
    • Increased well durations
    • Increased water depths
    • Use of horizontal trees and/or larger BOP’s with or without capping stack
  • How to manage potential fatigue problems:
    • Engineer the riser stackup, wellhead and conductor system with appropriate fatigue details
    • Implement fatigue mitigation strategies including equipment procurement, fabrication and integrity management

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