Method and device for driving into the marine subsurface at...

Details Method and device for driving into the marine subsurface at... Method and device for driving into the marine subsurface at...

2005-06-21

2005-06-21

Thompson, Kenneth (Department: 3672)

Wells

Submerged well

Testing

C175S020000, C175S058000

Reexamination Certificate

active

06907931

ABSTRACT:
The invention concerns a device for driving into the marine subsurface, in particular at great depths exceeding a thousand meters, a tubular tool for soil sampling or for measuring said soil characteristics. The invention is characterized in that the tubular tool (1) to be driven into the marine subsurface is secured to a base plate for positioning on the sea floor, and the device comprises at least a fluidic actuator (16), capable of being controlled from the surface, which is fixed to said base plate comprising a piston (4) moving in a cylindrical annular chamber (3) with an axis oriented parallel to the axis (y′y) of the tool (1) penetration, driving in the tool (1) depending on the discharge of intake of the fluid which is produced in said chamber (3), said piston (4) being subjected to the hydrostatic pressure prevailing at the depth where the device has been lowered by being in communication with the marine environment by its side external to said chamber (3).

REFERENCES:
patent: 2176477 (1939-10-01), Varney et al.
patent: 3313345 (1967-04-01), Fischer
patent: 3412814 (1968-11-01), Rosfelder
patent: 3438452 (1969-04-01), Bernard et al.
patent: 3561547 (1971-02-01), Pullos
patent: 3741320 (1973-06-01), Hilfing
patent: 5069488 (1991-12-01), Freyer et al.
patent: 6394192 (2002-05-01), Frazer
patent: 9909294 (1999-02-01), None
patent: 9910620 (1999-03-01), None

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