Directional drilling marine structure

Details Directional drilling marine structure Directional drilling marine structure

1977-05-23

1979-01-30

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

175 5, 175 8, E21B 712, E21B 704, E21B 1502

Patent

active

041369963

ABSTRACT:
Marine structure adapted to be fixed to the ocean floor for drilling wellbores into the latter. A drill conductor cage is removably positioned within the marine structure at a submerged position. The cage holds one or more drill string guides in a manner that directionally oriented wells can be drilled without movement of the structure. The cage is readily disengaged from its under-water working position in order that it can be brought to the water's surface, or otherwise adjusted to facilitate the addition of further conductor guides.

REFERENCES:
patent: 1094949 (1914-04-01), Taft
patent: 2740261 (1956-03-01), Stark
patent: 2924947 (1960-02-01), Peterson
patent: 3029608 (1962-04-01), Perkins
patent: 3474630 (1969-10-01), Pogonowski
patent: 3657895 (1972-04-01), Phelps
patent: 3685300 (1972-08-01), Mott et al.
patent: 4030310 (1977-06-01), Schirtzinger

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