Method and a device for undersea drilling

Details Method and a device for undersea drilling Method and a device for undersea drilling

1979-06-26

1981-03-10

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

175 6, 175 86, 175171, 405185, E21B 712

Patent

active

042550688

ABSTRACT:
The method consists in boring a shaft in the sea floor to form a drilling station of sufficient size to accommodate personnel and equipment, in lining the shaft walls with a casing which is cemented against the walls and surmounted by a water-tight self-contained subsea chamber, in extracting sea water from the shaft, in maintaining atmospheric pressure within the shaft and the subsea chamber, in lowering personnel and drilling equipment into the shaft and in carrying out drilling operations from the bottom of the shaft.

REFERENCES:
patent: 687830 (1901-12-01), Kirk
patent: 987266 (1911-03-01), Smith
patent: 2171672 (1939-09-01), Plummer
patent: 2937006 (1960-05-01), Thayer
patent: 3095048 (1963-06-01), O'Neill et al.
patent: 3661204 (1972-05-01), Blanding et al.

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