Methods and apparatus for installing a drill conductor from an o

Details Methods and apparatus for installing a drill conductor from an o Methods and apparatus for installing a drill conductor from an o

1975-06-26

1976-10-26

Gilliam, Paul R.

Wells

Receptacles

With separate air chamber having openable passage

166 05, 175 9, E21B 704, L21B 1502

Patent

active

039876390

ABSTRACT:
A drill conductor is installed into a water bed from an offshore tower situated in a body of water by lowering the conductor from a deck portion of the tower along a straight path which is inclined relative to vertical until the bottom end of the conductor reaches a predetermined depth in the water bed. The conductor is then bent about a fulcrum to displace an upper segment thereof to a vertically straight posture while maintaining a lower segment thereof above the water bed in a straight and inclined posture. A special arrangement of apertured guides is provided along the tower to accommodate the initial inclinedly straight insertion of the conductor and to accommodate the subsequent displacement of the upper conductor segment. The guides thus support the conductor such that a portion of the conductor disposed above the water bed includes upper and lower straight segments, the upper segment being vertically disposed and the lower segment being inclined relative to vertical.

REFERENCES:
patent: 3451493 (1969-06-01), Storm
patent: 3546889 (1970-12-01), Hemphill et al.
patent: 3592013 (1971-07-01), Poganowski
patent: 3670507 (1972-06-01), Mott et al.
patent: 3685300 (1972-08-01), Mott et al.
patent: 3687204 (1972-08-01), Marshall et al.
patent: 3899032 (1975-08-01), Rees et al.

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