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US 2013/0153242 A1Published application
In-riser power generation
OwnerKirk W. Flight, Matthew Niemeyer +4inventors
InventorsKirk W. Flight, Matthew Niemeyer, Ronald James Spencer, John Yarnold, Jeffrey Marabella, Gary Rytlewski
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Abstract
In-riser power generation devices and methods are utilized to generate power subsea to operate subsea devices of a subsea well system. A turbine power generator is located in fluid communication with a subsea fluid flow path of a subsea well system and the turbine power generator is operationally connected to a subsea power device.
Claims20
A subsea well system, comprising:
- a subsea fluid flow path;
- a riser extending from a vessel located at a water surface to a blowout preventer stack located at a seafloor;
- a subsea tree landed in the blowout preventer on a landing string comprising a bore;
- the landing string extending in the riser from the vessel forming an annulus between the landing string and the riser;
- and
- a turbine power generator in fluid communication with the subsea fluid flow path.
3 more elements
A method of generating power in a subsea well system, comprising:
- directing fluid flow across a turbine power generator located in fluid communication with a subsea fluid flow path of a subsea well system, the subsea well system including a riser extending from a vessel located at a water surface to a blowout preventer stack located at a seafloor, a subsea tree landed in a passage of the blowout preventer stack on a landing string comprising a bore, the landing string extending in the riser from the vessel forming an annulus between the landing string and the riser;
- and
- generating power in response to the fluid flow across the turbine power generator.
An in-riser power generation device, the device comprising:
- a sub member for connecting in a landing string to form a bore between a vessel located at a surface of a water and a blowout preventer stack located at a seafloor;
- a pathway formed through the sub member to communicate fluid flow when the sub member is connected in the landing string;
- and
- a turbine power generator positioned in the pathway.
1 more element
Dependencies are inferred from the claim text.