Subsea riser support and method for bridging escarpments
US-9217300-B1 · Dec 22, 2015 · US
Multiple flexible seafloor-surface linking apparatus comprising at least two levels
US9518682B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9518682-B2 |
| Application number | US-201214361635-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 23, 2012 |
| Priority date | Nov 30, 2011 |
| Publication date | Dec 13, 2016 |
| Grant date | Dec 13, 2016 |
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Abstract
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A bottom-to-surface connection installation between a common floating support and the sea bottom, having a plurality of flexible lines such as flexible pipes extending between said floating support and the sea bottom. The flexible lines are supported by respective ones of a plurality of troughs each trough lying between two pipe portions defining a first flexible line portion in a hanging double catenary configuration between the floating support and the trough, and a second flexible line portion in a single catenary configuration between the trough and the point of contact of the flexible pipe with the sea bottom. The installation has at least one support structure having a base-forming bottom portion resting on and/or anchored to, or embedded in the sea bottom and a top portion supporting at least two troughs, respectively a bottom trough and a top trough, the troughs being arranged at different heights in such a manner that the low point of the first flexible line portion passing via the bottom trough is situated below the low point of the first flexible line portion passing via the top trough.
First claim
Opening claim text (preview).
The invention claimed is: 1. A bottom-to-surface connection installation between a common floating support and the sea bottom, the installation comprising a plurality of flexible lines comprising flexible pipes made in whole or part of tubular thermoplastic layer reinforced with spiral-wound strips made of steel or composite material, said flexible lines extending between said floating support and the sea bottom where the flexible lines are connected to well heads, pieces of equipm…
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Classifications
- E21B17/015Primary
Fixed Constructions · mapped topic
- F16L3/01Primary
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9518682B2 cover?
- A bottom-to-surface connection installation between a common floating support and the sea bottom, having a plurality of flexible lines such as flexible pipes extending between said floating support and the sea bottom. The flexible lines are supported by respective ones of a plurality of troughs each trough lying between two pipe portions defining a first flexible line portion in a hanging doubl…
- Who is the assignee on this patent?
- Pionetti François Régis, Saipem Sa
- What technology area does this patent fall under?
- Primary CPC classification E21B17/015. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Dec 13 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).