Safety installation for a submerged drilling well-head

Details Safety installation for a submerged drilling well-head Safety installation for a submerged drilling well-head

1984-01-19

1985-11-19

Novosad, Stephen J.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166339, 166363, E21B 2908, E21B 4301

Patent

active

045536007

ABSTRACT:
A safety installation for a well-head located on the sea bottom comprises an emergency unit mounted on the well-head below the well shut-off units and including a complete-closure shut-off device controlled by sound transmission and by an intervention liquid supplied to a lateral inflow, a re-entry structure provided with an inflow funnel and placed on the sea bottom in the region of the well-head but spaced therefrom, and a flexible pipe connecting the lateral inflow of the emergency unit to the re-entry structure for intervention liquid and being wound on a drum on the re-entry structure.

REFERENCES:
patent: 4046191 (1977-09-01), Neath
patent: 4095421 (1978-06-01), Silcox
patent: 4386659 (1983-06-01), Shotbolt
patent: 4442902 (1984-04-01), Doremus et al.
patent: 4461354 (1984-07-01), Buras et al.

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