A remotely operated 6020-meter seafloor corer

Author

Petters, Richard ; Asakawa, Y.

Author_Institution

Williamson & Associates Inc., Seattle, WA, USA

Volume

1

fYear

1997

fDate

6-9 Oct 1997

Firstpage

172

Abstract

A remotely operated coring system has been developed that achieves its extended coring depth capability by making up and breaking down a drill string to advance the hole. The system has an operating depth of 6000 meters and is capable of coring continuously in hard rock to a depth of 20 meters. The system is currently installed on the research vessel Hakurei Maru No.2 operated by the Metal Mining Agency of Japan. The methods used to achieve this system´s 20 meter coring depth are also being used to develop systems with coring depths to 100 meters. This concept can also be adapted for the sampling of unconsolidated materials and gathering of in-situ data. This system should be of interest to both the commercial and scientific research communities with applications ranging from geophysical data acquisition to marine mineral assessment

Keywords

geophysical equipment; geophysical prospecting; oceanic crust; oceanographic equipment; seafloor phenomena; sediments; Japan; Metal Mining Agency; apparatus; borehole; coring; drill depth; drill string; drilling equipment; geophysical data acquisition; hard rock; instrument; marine geology; marine mineral assessment; marine sediment; oceanic crust; operating depth; prospecting; remotely operated seafloor corer; research vessel Hakurei Maru No.2; seafloor exploration; tethered system; unconsolidated material sampling; Data acquisition; Drilling; Force control; Gravity; Jamming; Marine vehicles; Minerals; Sampling methods; Sea floor; Umbilical cable;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '97. MTS/IEEE Conference Proceedings

Conference_Location

Halifax, NS

Print_ISBN

0-7803-4108-2

Type

conf

DOI

10.1109/OCEANS.1997.634356

Filename

634356