Title:
SEABED RESOURCE EXPLORATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, ELECTRICAL EXPLORATION METHOD, ELECTROMAGNETIC EXPLORATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2018/047638
Kind Code:
A1
Abstract:
The transmission device for a seabed resource exploration system according to the present invention is provided with a transmission unit for transmitting a predetermined transmission artificial signal transmitted to perform exploration for a seabed resource through water as a medium. The reception device according to the present invention is provided with a reception unit for receiving a synthesized signal of a reception artificial signal indicating a signal propagated through water as a medium to the host reception device from the transmission artificial signal and a spontaneous potential propagated through water as the medium to the host reception device in accompaniment with a potential abnormality generated due to the seabed resource. The signal processing device according to the present invention is provided with a signal processing unit for separating the synthesized signal into the reception artificial signal and the spontaneous potential.
Inventors:
KASAYA TAKAFUMI (JP)
GOTO TADANORI (JP)
KAWADA YOSHIFUMI (JP)
IWAMOTO HISANORI (JP)
GOTO TADANORI (JP)
KAWADA YOSHIFUMI (JP)
IWAMOTO HISANORI (JP)
Application Number:
PCT/JP2017/030527
Publication Date:
March 15, 2018
Filing Date:
August 25, 2017
Export Citation:
Assignee:
JAPAN AGENCY MARINE EARTH SCI (JP)
NIPPON MARINE ENTPR LTD (JP)
NIPPON MARINE ENTPR LTD (JP)
International Classes:
G01V3/08
Foreign References:
| JP2006145360A | 2006-06-08 | |||
| JP2005530135A | 2005-10-06 |
Other References:
UEDA, TAKUMI ET AL.: "Sub-seafloor resistivity sensing using a vertical electrode configuration", EARTH, PLANETS AND SPACE, vol. 66, 6 May 2014 (2014-05-06), pages 1 - 8, XP055488789
HEINSON, GRAHAM ET AL.: "Marine self-potential gradient exploration of the continental margin", GEOPHYSICS, vol. 70, no. 5, September 2005 (2005-09-01), pages G109 - G118, XP055285635
GOTO, TADA-NORI ET AL.: "A marine deep-towed DC resistivity survey in a methane hydrate area , Japan Sea", EXPLORATION GEOPHYSICS, vol. 39, no. 1, 2008, pages 52 - 59, XP055596705, ISSN: 0812-3985, DOI: 10.1071/EG08003
MCKAY, ALLAN ET AL.: "Towed Streamer EM - reliable recovery of sub-surface resistivity", FIRST BREAK, vol. 33, April 2015 (2015-04-01), pages 75 - 85, XP055488800
SATO, MOTOAKI ET AL.: "THE ELECTROCHEMICAL MECHANISM OF SULFIDE SELF- POTENTIALS", GEOPHYSICS, vol. 25, no. 1, February 1960 (1960-02-01), pages 226 - 249, XP055488802
See also references of EP 3511744A4
HEINSON, GRAHAM ET AL.: "Marine self-potential gradient exploration of the continental margin", GEOPHYSICS, vol. 70, no. 5, September 2005 (2005-09-01), pages G109 - G118, XP055285635
GOTO, TADA-NORI ET AL.: "A marine deep-towed DC resistivity survey in a methane hydrate area , Japan Sea", EXPLORATION GEOPHYSICS, vol. 39, no. 1, 2008, pages 52 - 59, XP055596705, ISSN: 0812-3985, DOI: 10.1071/EG08003
MCKAY, ALLAN ET AL.: "Towed Streamer EM - reliable recovery of sub-surface resistivity", FIRST BREAK, vol. 33, April 2015 (2015-04-01), pages 75 - 85, XP055488800
SATO, MOTOAKI ET AL.: "THE ELECTROCHEMICAL MECHANISM OF SULFIDE SELF- POTENTIALS", GEOPHYSICS, vol. 25, no. 1, February 1960 (1960-02-01), pages 226 - 249, XP055488802
See also references of EP 3511744A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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