Methods for seabed piston coring
AssigneeBenthic Geotech Pty Ltd
InventorHugh Ivo Frazer
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Abstract
A method of acquiring a core sample of seabed material into a core sampling tube having an upper end, a lower open end and a substantially cylindrical chamber extending therebetween, comprising the steps of urging the core sampling tube into the seabed and simultaneously withdrawing fluid from the upper end of the core sampling tube at a rate sufficient to cause the seabed material to be drawn into the core tube at substantially the same rate as the core tube penetrates the seabed.
Claims16
A method of acquiring a core sample of seabed material into a core sampling tube having an upper end, a lower open end and a substantially cylindrical chamber extending therebetween, comprising the steps of:
- (a) urging the core sampling tube into the seabed and
- (b) simultaneously withdrawing fluid from the upper end of the core sampling tube at a rate sufficient to cause the seabed material to be drawn into the core tube at substantially the same rate as the core tube penetrates the seabed.
A core sampling tube for acquiring a core sample of seabed material comprising:
- (a) a core barrel having an upper end with a fluid inlet/outlet;
- (b) an open lower end;
- and
- (c) substantially cylindrical chamber extending therebetween to receive seabed material,
- wherein in use, the urging of the core sampling tube into the seabed and simultaneous withdrawing of fluid from the upper end of the core sampling tube is at a rate sufficient to cause the seabed material to be drawn into the core tube at substantially the same rate as the core tube penetrates the seabed.
Dependencies are inferred from the claim text.