Submarine drilling device

Details Submarine drilling device Submarine drilling device

1986-10-09

1988-05-10

Novosad, Stephen J.

Boring or penetrating the earth

Boring a submerged formation

Boring from floating support with submerged independent...

175 94, 175 99, 175189, E21B 7128

Patent

active

047428767

ABSTRACT:
A device for submarine foundation drilling includes: a drilling unit including a head and body interconnected by at least one cylinder, the body being equipped with at least one cutter, the drilling unit being equipped with at least one excavating pump, and hydraulic motors to operate the cutter and the pump; a rigid tubular assembly (2) containing at least one discharge pipe, and pipes for feeding hydraulic fluid to the cylinder and the motors; connecting means (12) between the head of the drilling unit and the lower part of the tubular construction; support means (13) able to be placed at the ocean bottom in front of the head of the drilling unit, means for clamping the tubular assembly; means for suspending the device from a ship, means (5) being provided to furnish hydraulic power, and connecting pipes being provided between the means of furnishing fluid and the upper end of the tubular assembly.

REFERENCES:
patent: 3137348 (1964-06-01), Ahlstone et al.
patent: 3894587 (1975-07-01), Sourice

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