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US 10,851,596 B2Granted
Multi-level wellhead support platform
AssigneeSaudi Arabian Oil Company
InventorsBrian A. Roth, Jinjiang Xiao
Life of this patent
Estimating the term…
Abstract
A first platform is mounted to a central riser that is configured to flow a fluid into or out of a wellbore. The central riser is fluidically and structurally attached to a wellhead. The first platform is positioned relative to the central riser to allow access to substantially all external portions of the central riser from the first platform. A second platform is positioned above and supported by the first platform. The first platform is positioned between the second platform and the wellhead. The second platform is movable relative to the first platform.
Claims24
A wellhead work platform comprising:
- a first platform mounted to a central riser configured to flow a fluid into or out of a wellbore, the central riser fluidically and structurally attached to a wellhead, the first platform positioned relative to the central riser to allow access to substantially all external portions of the central riser from the first platform;
- a second platform positioned above and supported by the first platform, the first platform positioned between the second platform and the wellhead, the second platform being movable relative to the first platform, the second platform configured to be transverse to the central riser in one configuration and to be folded towards the first platform in another configuration;
- and
- a collapsible structure secured to the second platform, the collapsible structure configured to extend between the first platform and the second platform to support the second platform when the second platform is transverse to the central riser and to be folded into the second platform when the second platform is folded towards the first platform.
1 more element
A wellhead work platform comprising:
- a first platform mounted to a central riser configured to flow a fluid into or out of a wellbore, the central riser fluidically and structurally attached to a wellhead, the first platform positioned relative to the central riser to allow access to substantially all external portions of the central riser from the first platform;
- a second platform positioned above and supported by the first platform, the first platform positioned between the second platform and the wellhead, the second platform being movable relative to the first platform, the second platform configured to be transverse to the central riser in one configuration and to be folded towards the first platform in another configuration;
- and
- a collapsible structure secured to the second platform, the collapsible structure configured to extend between the first platform and the second platform to support the second platform when the second platform is transverse to the central riser and to be folded into the second platform when the second platform is folded towards the first platform;
- and
- a ladder or staircase extending between the first platform and the second platform when in an extended position.
3 more elements
A wellhead work platform comprising:
- a first platform having a first width and a first length, the first platform configured to support at least a weight of a wellbore worker, the first platform mounted to and primarily supported by a central riser connected to a wellhead of a wellbore, the first platform positioned relative to the central riser to allow the wellbore worker access to substantially all external portions of the central riser from the first platform;
- a second platform having a second width and a second length less than the first width and the first length, respectively, the second platform supported by the first platform, the second platform configured to support at least the weight of the wellbore worker, the first platform positioned between the second platform and the wellhead, the second platform being movable relative to the first platform, the second platform configured to be transverse to the central riser in one configuration and to be folded towards the first platform in another configuration;
- and
- a collapsible structure secured to the second platform, the collapsible structure configured to extend between the first platform and the second platform to support the second platform when the second platform is transverse to the central riser and to be folded into the second platform when the second platform is folded towards the first platform.
1 more element
Dependencies are inferred from the claim text.