Analysis of Fatigue Monitoring of Deepwater Drilling Riser
The riser is the key equipment for deepwater drilling, which is prone to fatigue damage in harsh deepwater environment, so it is very important to monitor the fatigue of deepwater riser.Through analysis of the riser fatigue causes, fatigue monitoring has been classified.The monitoring device installation position and number has been determined.Three methods for deepwater drilling riser fatigue monitoring, including stand-alone battery powered monitoring, real-time wired monitoring and real-time acoustic monitoring, have been established.The application situation of the methods for drilling riser fatigue monitoring in foreign and domestic has been comparatively analyzed.The results show that, monitoring on structure and environment could determine the fatigue damage of the riser, and motion monitoring could help understanding the fatigue condition of the riser indirectly.Of the three fatigue monitoring methods, the real-time acoustic monitoring has great advantage and will become the focus of research direction.The domestic riser fatigue monitoring device should be continued to be improved and innovated, so as to provide a strong guarantee for the safe development of deepwater oil and gas in China.
NETL
NSTL
万方数据
维普
