Protective guide cage construction for subsea well operations

Details Protective guide cage construction for subsea well operations Protective guide cage construction for subsea well operations

1978-05-01

1979-05-22

Shapiro, Jacob

Hydraulic and earth engineering

Marine structure or fabrication thereof

Structure protection

405188, 166338, 166342, E21B 33035, F16L 100

Patent

active

041556720

ABSTRACT:
A cage construction for protection of well equipment at a subsea wellhead and during descent to or ascent from a subsea well, said cage construction comprising an open frame cage body means defining a longitudinal axis, an intermediate cage portion of selected lateral and vertical dimension to encompass well equipment supported from a wellhead at the sea floor, and end cage portions extending upwardly and downwardly from said intermediate cage portion serving as guidance means, each cage end portion including coaxial receptor members, the receptor member at the lower end portion being adapted to receive and to be supported from a wellhead part, and the receptor member at the upper cage end portion being adapted to align, receive and pass therethrough the lower end of a pipe string into said cage body means.

REFERENCES:
patent: 3316015 (1967-05-01), Jones
patent: 3321015 (1967-05-01), Word, Jr.
patent: 3551005 (1970-12-01), Brun
patent: 4120362 (1978-10-01), Chateau et al.

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