Riser pipe stacking system

Details Riser pipe stacking system Riser pipe stacking system

1975-03-31

1976-09-21

Abbott, Frank L.

Boring or penetrating the earth

Boring a submerged formation

175 85, 166 5, E21B 1900

Patent

active

039813690

ABSTRACT:
An offshore drilling rig that embodies a means for vertical stacking of riser pipe sections and blowout preventors below a derrick floor and includes riser pipe manipulating mechanisms for transporting units in a vertical condition between a storage area and the operational area. In the operational area, the cellar floor is provided with a sliding door mechanism which is selectively capable of supporting either the blowout preventor and riser weight, or the blowout preventor. The transportation system includes means for lifting and supporting a riser pipe section vertically and movable in transverse and longitudinal, horizontal directions for transporting pipe sections in a vertical condition.

REFERENCES:
patent: 3189093 (1965-06-01), DeVries
patent: 3322191 (1967-05-01), Bullard
patent: 3333562 (1967-08-01), Deal et al.
patent: 3498392 (1970-03-01), Knorr
patent: 3592347 (1971-07-01), Kelly et al.
patent: 3613906 (1971-10-01), Deyo et al.
patent: 3708024 (1973-01-01), Back
patent: 3717002 (1973-02-01), O'Brien et al.
patent: 3817412 (1974-06-01), Mercier et al.

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