Title:
【発明の名称】海底油田開発における炭化水素の輸送のための可撓導管
Document Type and Number:
Japanese Patent JP2525897
Kind Code:
B2
Abstract:
The invention relates to a flexible pipeline having an inner tube made of a flexible material providing leaktightness, a protective outer coating made of a flexible material, at least one annular section comprising reinforcements between the inner tube and the protective outer coating, and, usually, an inner metallic carcass. The pipeline comprises a passage means (6, 7, 7a; 9) providing communication between said annular section and the external environment, said means being provided with a quick-opening, quick- closing valve (8) constructed so as to open and close under predetermined differential pressures inside said annular section.
Inventors:
Joel Renovo
Jean Rigaud
Jean Rigaud
Application Number:
JP11275189A
Publication Date:
August 21, 1996
Filing Date:
May 01, 1989
Export Citation:
Assignee:
Coffreship
International Classes:
F16L11/12; F16L55/07; F16L11/04; (IPC1-7): F16L55/07; F16L11/04
Domestic Patent References:
| JP6353995U |
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)