Drilling Experiences of the deep sea drilling vessel CHIKYU in High Current

Author

Miyazaki, Tsuyoshi ; Miyazaki, Eigo ; Shinmoto, Yuichi ; Ozaki, Masahiko ; Isozaki, Yoshio

Author_Institution

Center for Deep Earth Exploration (CDEX), Japan Agency for Marine-Earth Sci. & Technol., Yokohama

fYear

2008

Firstpage

1

Lastpage

5

Abstract

Deep sea drilling vessel Chikyu is the first riser equipped scientific drilling vessel in the world. Chikyu started the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) from September 2007. The speed of current encountered with Chikyu has been frequently measured more than 4.0 kt throughout NanTroSEIZE. So far, Chikyu carried out drilling operations. In this report, summaries of experiences and findings associated with high current in drilling operations of Chikyu are described.

Keywords

drilling; oceanic crust; oceanographic equipment; oceanographic regions; ships; AD 2007 09; Chikyu; NanTroSEIZE; Nankai trough seismogenic zone experiment; deep sea drilling vessel; drilling operation; ocean current; riser equipped scientific drilling vessel; Acoustic measurements; Current measurement; Drilling; Marine technology; Oceans; Sea measurements; Sea surface; Seismic measurements; Testing; Velocity measurement;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/OCEANSKOBE.2008.4530995

Filename

4530995