Title:
RISER PIPE
Document Type and Number:
Japanese Patent JP2016166476
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a riser pipe that is restrained from being clogged with gas hydrate.SOLUTION: A plurality of through-holes 6 are formed inward from an outer peripheral surface of a riser pipe 1, and formed in a state in which extension directions of the through-holes 6 do not cross a central axis c of the riser pipe 1.SELECTED DRAWING: Figure 2
Inventors:
TAN SEIJI
KATO HISAKIMI
TAKEUCHI KAZUNORI
KATO HISAKIMI
TAKEUCHI KAZUNORI
Application Number:
JP2015046646A
Publication Date:
September 15, 2016
Filing Date:
March 10, 2015
Export Citation:
Assignee:
MITSUI SHIPBUILDING ENG
International Classes:
E21C50/00
Domestic Patent References:
| JPS5067102U | 1975-06-16 | |||
| JPS58191897A | 1983-11-09 | |||
| JP2015031097A | 2015-02-16 | |||
| JPS5016112A | 1975-02-20 | |||
| JPS4883001A | 1973-11-06 | |||
| JPS5763200U | 1982-04-15 |
Foreign References:
| US20120181041A1 | 2012-07-19 | |||
| WO2002012637A1 | 2002-02-14 |
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Masao Sakaizawa
Isao Hirai
Takayoshi in the daytime
Masao Sakaizawa
Isao Hirai
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