Title:
FOUNDATIONS FOR SUBSEA PIPELINE ACCESSORIES
Document Type and Number:
WIPO Patent Application WO/2014/207560
Kind Code:
A3
Abstract:
A pipeline (12) including an accessory (10) such as a flowline end termination or an in-line tee is lowered to the seabed (124) and a mudmat foundation (62) is subsequently lowered toward the seabed for subsea docking with the accessory to provide a permanent foundation support for the accessory. Once docked and with a mudmat of the foundation landed on the seabed, weight loads of the accessory structure (10) and the attached pipe (12) are transferred to the mudmat (62) to provide a permanent foundation for the accessory structure. Before and during installation of the mudmat foundation, the pipe may be allowed to become embedded in the seabed. Temporary interim support such as buoyancy (118) may be provided to the accessory (10) to limit embedment into the seabed (124).
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Inventors:
AYESTARAN BASAGOITIA LEIRE (ES)
VIELLARD BRICE (FR)
MENET FLORENT (FR)
VIELLARD BRICE (FR)
MENET FLORENT (FR)
Application Number:
PCT/IB2014/001744
Publication Date:
April 09, 2015
Filing Date:
June 23, 2014
Export Citation:
Assignee:
ACERGY FRANCE SA (FR)
International Classes:
F16F1/12; F16F1/20
Domestic Patent References:
| WO2012101525A1 | 2012-08-02 | |||
| WO2011110950A2 | 2011-09-15 | |||
| WO2011114170A1 | 2011-09-22 |
Foreign References:
| GB2070187A | 1981-09-03 | |||
| US20120263541A1 | 2012-10-18 |
Attorney, Agent or Firm:
KELTIE LLP (London SE1 9BA, GB)
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