High density fluid recovery of sunken material
AssigneeSYNCRUDE CANADA LTD. in trust for the owners of the Syncrude Project as such owners exist now & in
InventorTREVOR FINLAYSON
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Abstract
A method for recovering a sunken material from a body of water having a water layer and a sediment layer, the sunken material present at a water-sediment interface is presented, comprising using an impermeable hollow column and a high density fluid to float the sunken material to the top of the column for readily removal of the floated sunken material using surface material removing equipment.
Claims20
A method for recovering a sunken material from a body of water having a water layer and a sediment layer, the sunken material present at a water-sediment interface, comprising:
- inserting an impermeable hollow column vertically into the body of water and through the sunken material such that a top of the column is exposed to the atmosphere and a bottom of the column is embedded into the sediment layer;
- removing water present in the column at or near the top of the column while simultaneously injecting a high density fluid at or near the bottom of the column to float the sunken material to the top of the column;
- and
- removing floated sunken material using surface material removing equipment.
A method for recovering a sunken material from a body of water having a water layer and a sediment layer, the sunken material present at a water-sediment interface, comprising:
- inserting an impermeable hollow column vertically into the body of water and through the sunken material such that a top of the column is exposed to the atmosphere and a bottom of the column is embedded into the sediment layer;
- adding an amount of dry chemical to the column sufficient to produce a high density fluid and float the sunken material to the top of the column;
- and
- removing floated sunken material using surface material removing equipment.
Dependencies are inferred from the claim text.