A new hybrid pressure-coring system for the drilling vessel Chikyu

被引:79
作者
Kubo, Y. [1 ]
Mizuguchi, Y. [1 ]
Inagaki, F. [2 ,3 ]
Yamamoto, K. [4 ]
机构
[1] Japan Agcy Marine Earth Sci & Technol JAMSTEC, Ctr Deep Earth Explorat CDEX, Yokohama, Kanagawa 2360061, Japan
[2] JAMSTEC, Kochi Inst Core Sample Res, Nankoku, Kochi 7838502, Japan
[3] JAMSTEC, Submarine Resources Res Project, Yokosuka, Kanagawa 2370061, Japan
[4] Japan Oil Gas & Met Natl Corp, Mihama Ku, Chiba, Chiba 2610025, Japan
基金
日本学术振兴会;
关键词
D O I
10.5194/sd-17-37-2014
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Retrieving core samples without releasing the in situ hydrostatic pressure during core recovery is one of the many technical challenges in scientific drilling. We report here a newly developed hybrid pressurecoring system for the use on the drilling vessel Chikyu and its successful use during expeditions 906 and 802 in the Nankai Trough of Japan. The system is gas-tight and hence enables researchers to study in situ geophysical and geochemical characteristics of sediments containing gaseous components, such as methane hydrates that cannot be reliably recovered with nonpressure coring systems. In addition, pressure coring is a powerful tool, not only for scientific but also for hydrocarbon resources research.
引用
收藏
页码:37 / 43
页数:7
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