Apparatus and method for offshore drilling at great depths

Details Apparatus and method for offshore drilling at great depths Apparatus and method for offshore drilling at great depths

1977-08-10

1979-10-09

Purser, Ernest R.

Boring or penetrating the earth

Boring a submerged formation

Boring from floating support with submerged independent...

166357, 166366, 405195, E21B 1502

Patent

active

041702662

ABSTRACT:
An offshore drilling installation comprising an underwater base spaced from an underwater buoy and in communication therewith by a connecting conduit. The underwater buoy represents the upward extension of the sea bed which serves to support an above-sea platform. The underwater buoy is further secured to the sea bed by mooring lines. Oil containing means is provided in the underwater base.

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patent: 3626701 (1971-12-01), Laffont
patent: 3643446 (1972-02-01), Mott
patent: 3982401 (1976-09-01), Loggins
patent: 4068729 (1978-01-01), Peevey

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