Method and apparatus for offshore drilling operations

Details Method and apparatus for offshore drilling operations Method and apparatus for offshore drilling operations

1974-12-02

1976-08-10

Purser, Ernest R.

Boring or penetrating the earth

Boring a submerged formation

Boring from floating support with submerged independent...

166 5, E21B 712

Patent

active

039736350

ABSTRACT:
A one-step method and apparatus for placement of a drilling guide base, running tool, and drill string during offshore drilling operations. The running tool is retrievable from the guide base leaving the drill string in position to commence drilling operations without having to return the drill string to the surface for removal of the running tool.

REFERENCES:
patent: 2917281 (1959-12-01), Kofahl
patent: 2929610 (1960-03-01), Stratton
patent: 3159218 (1964-12-01), Wilde
patent: 3292694 (1966-12-01), Lacy et al.
patent: 3426844 (1969-02-01), McDaniel
patent: 3519071 (1970-07-01), Word

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