Title :
Application of riser fairings to the D/V "CHIKYU" during drilling in high current area
Author :
Miyazaki, Eigo ; Ozaki, Masahiko ; Nishioka, Shunji ; Minamiura, Junichi
Author_Institution :
Japan Agency for Marine-Earth Sci. & Technol., Yokohama
Abstract :
Japan Agency for Marine-Earth Science and Technology (JAMSTEC) has a plan to carry out riser drilling operation in the Kuroshio high current area applying a scientific drilling vessel "CHIKYU". The riser drilling operation in such high current area will be affected by vortex induced vibration (VTV) and inclination of the riser due to high current. In order to cope with these problems caused by high current, JAMSTEC has started to consider applying riser fairings during the CHIKYU\´s operation in the Kuroshio area. Several tank tests to confirm and evaluate performances on some kinds of fairings have been conducted. In this paper, the detail of the riser fairing for the CHIKYU and results of tank tests will be described.
Keywords :
drilling; oceanographic techniques; D/V "CHIKYU"; JAMSTEC; Kuroshio high current area; riser drilling; riser fairings; vortex induced vibration; Drilling; Earthquakes; Fatigue; History; Large-scale systems; Marine technology; Oceans; Performance evaluation; Shipbuilding industry; Testing;
Conference_Titel :
OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean
Conference_Location :
Kobe
Print_ISBN :
978-1-4244-2125-1
Electronic_ISBN :
978-1-4244-2126-8
DOI :
10.1109/OCEANSKOBE.2008.4530990
