Drilling derrick device

Details Drilling derrick device Drilling derrick device

1987-08-28

1989-09-05

Dang, Hoang C.

Boring or penetrating the earth

With magazine for successively moving unconnected, oriented...

175 85, 414 2263, 414 2271, E21B 1914

Patent

active

048629731

ABSTRACT:
A drilling derrick device for handling drill-pipe stands has at least one movable racking platform with pipe-stand receiving compartments, supported above the working deck of the derrick, at least one racking carriage associated with the racking platform and movable on the working deck and a pivotable drill-pipe robot having gripping arms to load and unload the racking platform and the racking carriage. The racking platform and the racking carriage are moved in synchronism relative to the drill-pipe robot which has a fixed position on the working deck in order to perform drill string dismantling and assembly operations.

REFERENCES:
patent: 2628725 (1953-02-01), Stone
patent: 2773605 (1956-12-01), De Jarnett
patent: 3061011 (1962-10-01), Pager
patent: 3701435 (1972-10-01), Woolslayer et al.
patent: 3883009 (1975-05-01), Swoboda, Jr. et al.
patent: 4274778 (1981-06-01), Putnam et al.
patent: 4445579 (1984-05-01), Bello

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