Gas lift umbilical cable and termination assemblies therefor
AssigneeKellogg Brown & Root LLC
InventorsDana John Fraser, Alva W. Davis
Life of this patent
Estimating the term…
Abstract
A gas lift umbilical including a flexible pipe having a collapse resistant wall and a first sealing layer formed on an interior surface of the collapse resistant wall. The interior surface defines a longitudinal passage. A flexible gas lift hose is mounted within the longitudinal passage extending from a first end of the flexible pipe to a second end thereof. A first fitting is attached to the collapse resistant wall of the flexible pipe at a first end thereof. A second fitting is attached to the collapse resistant wall of the flexible pipe at a second end thereof. A first adapter joins a first end of the gas lift hose to the first fitting and a second adapter joins a second end of the gas lift hose to the second fitting.
Claims19
An umbilical comprising:
- a flexible pipe including a collapse-resistant wall, a longitudinal passage, an interior sealing layer and an exterior sealing layer;
- a core within the flexible pipe, the core including a protective sheath encasing a plurality of flexible conveyance elements, a plurality of shape-conforming first fillers, a plurality of second fillers and a plurality of air hoses, the plurality of flexible conveyance elements positioned within the longitudinal passage extending from a first end of the flexible pipe to a second end thereof, at least a portion of the conveyance elements being collapse-resistant to hydrostatic pressure;
- a first end fitting and a second end fitting attached to opposite ends of the umbilical;
- each end fitting being attached to a respective shroud;
- and
- the conveyance elements extending through each end fitting and into the respective shroud;
- each end fitting including:
- an interior sealing clamp having a first sealing ring clamped onto the interior sealing layer by an inner collar;
- and
- an exterior sealing clamp having a second sealing ring clamped onto the exterior sealing layer by an exterior collar.
An umbilical comprising:
- a flexible pipe having a collapse-resistant wall, an interior sealing layer and an exterior sealing layer;
- a first end fitting and a second end fitting respectively attached to opposite ends of the umbilical;
- a shroud attached at a first end to the end fitting;
- a conveyance element;
- an adaptor attached at a first end to the conveyance element and at a second end to the shroud;
- and
- a sealing clamp including a sealing ring and a collar for securing a sealing layer of the flexible pipe to the shroud, the sealing ring mounted adjacent a layer of the flexible pipe to fixedly retain the sealing layer of the flexible pipe to the shroud in response to engagement of the sealing ring by the collar
- each end fitting being attached to a respective shroud;
- and
- a conveyance element extending through each end fitting and into the respective shroud;
- each end fitting including:
- an interior sealing clamp having a first sealing ring clamped onto the interior sealing layer by an inner collar;
- and
- an exterior sealing clamp having a second sealing ring clamped onto the exterior sealing layer by an exterior collar.
Dependencies are inferred from the claim text.