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US 2017/0247985 A1Published application
Landing string retainer system
AssigneeExpro North Sea Limited
InventorsStephen George Minty, Andrew Macdonald Carmichael
Life of this patent
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AssigneeExpro North Sea Limited
InventorsStephen George Minty, Andrew Macdonald Carmichael
Estimating the term…
A retainer system, device and method are provided for retaining a severed pipe string such as a landing string suspended from a rig of a floating vessel or platform during a failure of a primary or secondary heave compensation system and prevent the severed pipe string from flying over the rig floor. The retainer system includes a retainer device including a housing mounted to a platform or vessel, the housing defining a through bore for receiving a pipe string suspended from the platform or vessel. A safety sleeve extends through the housing. A stop arrangement is mountable on the pipe string, to permit engagement between the safety sleeve and the stop arrangement in order to limit relative movement between the housing and the pipe string in order to retain a severed pipe string in an emergency situation.
A retainer system comprising:
6-12. (canceled)
(canceled)
18-19. (canceled)
(canceled)
24-25. (canceled)
The retainer system as in claim 12, wherein the impact absorption section comprises a dampening mechanism.
(canceled)
30-31. (canceled)
34-36. (canceled)
A retainer device for a pipe string, the retainer device comprising:
A pipe string comprising a stop arrangement associated with the pipe string, wherein the stop arrangement is adapted to engage a safety sleeve of a retainer device to arrest the movement of the pipe string during operations.
40-84. (canceled)
Dependencies are inferred from the claim text.