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https://www.subsea7.com/content/dam/subsea7-corporate2018/Publications/Deep-7-Publication/Deep7%20May%202015.pdf.downloadasset.pdf
Pioneering Buoy Supported Riser System 2015 Sapinhoá-Lula NE technical success see pages 12/13. deep7 - 2015 The many types of innovation at Subsea 7 ... encourage and support the development of knowledge, skills, and technologies which provide us with the ability to successfully undertake
https://en.wikipedia.org/wiki/Single-point_mooring
A Single buoy mooring (SrM) (also known as single-point mooring or SPM) is a loading buoy anchored offshore, that serves as a mooring point and interconnect for tankers loading or offloading gas or liquid products. SPMs are the link between geostatic subsea manifold connections and weathervaning tankers.
https://petrowiki.org/Production_risers
Hybrid Riser incorporated steel and flexible pipe technologies this allows the flexible pipe to absorb most of the dynamic motions of the riser while the Steel Catenary Riser or vertical leg is connected to a sub-surface buoy for support. These Hybrid Risers systems have been developed mainly for the reduction of the decoupling effect between ...
https://www.offshore-mag.com/production/article/16760173/study-examines-mooring-and-riser-options-for-fpsos
Study examines mooring and riser options for FPSOs. ... The buoy is designed to support the mooring lines and risers/umbilicals upon disconnect. The buoy will slowly descend in the water column to an equilibrium condition (roughly 60 m, or 197 ft, below the sea level) where there will be minimal wave kinematics. ... Another beneficial effect of ...
https://www.iconeng.com.au/track-record/projects/mcdermott-australia-ichthys-umbilicals-risers-and-flowlines-design-of-mid-depth-buoys-and-gravity-bases
Mid Depth Buoy Design The stringent INPEX functional specification, dictated that each mid depth buoy support five flexible risers / umbilicals. Furthermore, the minimum required 285 Tonnes net buoyancy was to be developed from syntactic foam. The buoy structure and arch system was prescribed to be largely composed of open steel sections, in order to minimise reliance on a significant volume ...Phone: (08) 6313 5500
https://patents.google.com/patent/US7040841B2/en
The top of the riser support can be wide and have a convex upper surface, to allow the hose to be lifted off and placed back on the upper surface. The riser support has a sufficient average horizontal width and horizontal length, compared to its height, that an underwater buoy is not required or used to support the top of the riser support.Cited by: 17
https://subseaworldnews.com/2014/02/10/first-buoy-supported-riser-system-installed-on-guara-lula-project-brazil/
The project, operated by Petrobras, is located in the Guará and Lula pre-salt fields in Santos Basin. The BSR system features four large subsea buoys which, when moored and tensioned, will support 27 steel catenary risers. Each buoy weighs approximately 2,000 …
https://patents.justia.com/patent/20030017010
A riser connected by a trunnion mounted/pivoting riser support to a disconnectable body or to a riser table of a permanently connected turret. The trunnion includes a trunnion housing and trunnion pivot. The trunnion housing is arranged to allow a riser to pass through it and up to a vessel turret where the disconnectable body is connected to the turret.
https://patents.google.com/patent/US20110092115A1/en
When the riser buoy is released, the weight connected to the riser buoy, once resting on the sea floor, will moor the riser buoy and as such limit the excursions of the risers within acceptable limits. Further as the mooring legs are directly connected to the turret, the riser buoy has only sufficient buoyancy to support the risers.Cited by: 9
https://epcmholdings.com/spm-calm-buoy-systems-guide/
The SPM CALM philosophy consists of a tanker mooring securely to a single buoy in open waters offshore. After which the free ends of floating hoses connected to the buoy are connected to the tanker and product is pumped through the hoses, buoy, subsea risers, manifolds and subsea pipeline.
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