Title:
BLAST SYSTEM AND BLAST METHOD FOR DRILLING BOTTOM OF WATER OR SEABED
Document Type and Number:
Japanese Patent JP2020106249
Kind Code:
A
Abstract:
To provide a blast system capable of connecting a blast controller and a detonator rationally.SOLUTION: A blast system 1 for drilling a seabed 35 has: an explosive cylinder 30 loaded on the seabed 35; a charge detonator device 2 joined to the explosive cylinder; a blast controller 3 for sending an instruction signal from the sea surface; and a bus line for coupling the blast controller 3 and the charge detonator device 2. The charge detonator device 2 has: a power supplying transmitter for supplying power wirelessly based on the instruction signal from the blast controller 4; an electric storage apparatus for charging the power supplied from the power supplying transmitter wirelessly; and an electric detonator for blasting the explosive cylinder 30 based on the power charged to the electric storage apparatus. A repeater is installed in the middle of the bus line. The bus line has: a control bus line 5 for coupling the blast controller 3 and the repeater; and a blast bus line 6 for coupling the repeater 4 and the explosive cylinder 30.SELECTED DRAWING: Figure 1
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Inventors:
TAZAKI YOJI
Application Number:
JP2018247621A
Publication Date:
July 09, 2020
Filing Date:
December 28, 2018
Export Citation:
Assignee:
NOF CORP
International Classes:
F42D1/04; E21C50/00; F42B3/00; F42D1/05
Domestic Patent References:
| JPS63148100A | 1988-06-20 | |||
| JPS4820302A | ||||
| JPS61205799A | 1986-09-11 | |||
| JPS59176600A | 1984-10-05 |
Foreign References:
| WO2017183662A1 | 2017-10-26 |
Attorney, Agent or Firm:
Okada International Patent Office