Pipelines & Risers
SWAC
Date : 2009
Presentation :
- Pacific
- Sea Water Air Conditioning (SWAC)
- Pipeline diameter: 450 mm
- Water depth: from 0 to 970 m
DVO Services :
- Study and conception of the suction line going down to 970 m depth
- Study and conception of the waste heat line going down to 30 m depth
- Study of installation stresses with Orcaflex software
DORA SEALINE
Client: Total Liban
Date: 2009
Presentation :
- Beyrouth, Lebanon
- Total depot for hydrocarbon products
- CBM terminal and pipeline to shore
- Pipeline diameter: 10”
- Pipeline length: approximately 1100 m
- Shallow water: down to 16 m
DVO Services :
- Feasibility study for CBM and pipeline deeper relocation
- Detailed study for pipeline replacement and connexion to the existing onshore manifold
- Onsite pipeline preparation and installation supervision
THREE 6” SEALINES
Client : Geocean
Date : 2009
Presentation :
- Cameroon, Rio del Rey area
- Installation of three sealines between already existing platforms
- Pipeline diameter: 6”
- Shallow water: down to 20 m
DVO Services :
- Assistance to the redaction of precodeures including pipeline installation procedure and riser clamps installation procedures
SISI NUBI
Client : GEOCEAN and TOTAL
Dates : 2006
Presentation :
- Indonesia
- Near shore pipeline laying project
- Diameter: 26”
- Water depth: from 0 to 20 m
- 5 pipeline crossings
- Dimensions of the pipe laying barge: 85 m x 27 m x 5 m
DVO Services :
- Review of the basic engineering of the pipelines
- Technical assistance for the operations of installation of the pipelines (naval architecture, evaluation of the stress in the pipes)
- Supervision of the marine operations
SMK - Ruby
Clients: GEOCEAN, Nisconi and TOTAL
Date: 2011-2012
Presentation:
- Indonesia, Mahakam area
- Near shore pipeline laying project – 2 lines
- Diameters: 24” and 14”
- Water depth : from 0 to 20 m
- Each pipeline approximately 10 km long, post-trenched on half the length.
- in the vicinity of producing lines and access channel to the Total jetty.
- Dimensions of the pipe laying barge: 86 m . 27 m . 5 m
- For 24” line, works included tie-In with the deep water string. For 14” line, works included hydrotesting and dewatering.
DVO Services:
- Engineering manager, in charge of the installation engineering (mooring calculations, stress calculations, installation procedures)
- Assistance to barge preparation
- Coordination of onshore and offshore teams
- field engineer
Addah - Vridi
Clients: GEOCEAN, Foxtrot
Date: 2013
Presentation:
- Côte d'Ivoire
- 2 similar projects
- Diameters: 6” and 14”
- Water depth : from 0 to 20 m
- Onshore preparation of approximately 900m long pipelines
- Horizontal directional drilling
- Addah project: Pulling of the pipelines on the seabed towards the ocean, then pulling back through the drilled hole
- Vridi project: pulling of the pipelines through the drilled holes under the Vridi channel
- precommissioning of the lines
DVO Services:
- Vridi Engineering manager
- Addah field engineer