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US 2007/0183853 A1Published application
System tank and output unit for transporting untreated drill cuttings
AssigneeIng. Per Gjerdrum AS
InventorAnders Eide
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AssigneeIng. Per Gjerdrum AS
InventorAnders Eide
Estimating the term…
System for transport of untreated drill cuttings, comprising a tank (2). The tank (2) is arranged below the deck of a ship (1) and has an output unit (10) at the bottom (6), to feed the drill cuttings towards an output opening (8). A pump (21) is provided below the bottom of the tank (2) to feed the drill cuttings through an unloading line (13). The unloading line (13) has a substantially uniform cross section and is shaped so that the velocity of the flow close to the inner wall is substantially equal in the same cross section. The tank (2) has an upper circular cylindrical part (3) and a lower frustuconical part (4) and a substantially flat bottom (6). In the flat bottom (6) is an output opening (8), which extends from the side wall (5) of the frustuconical part (4) to an inner dome or cone (11).
A system for transporting bulk, especially for transporting untreated drill cuttings, comprising a tank for containing the bulk during transport, the tank having an output unit at the bottom of the tank for feeding the bulk towards an output orifice in the tank bottom, characterized in that the tank is arranged below deck on a ship and comprises a lower frustuconical part that ends in a substantially flat bottom, and that a pump is arranged at a level lower than that of the tank bottom for receiving the bulk and advancing them through an unloading line, which unloading line has an essentially uniform cross section.
A system according to claim 1, characterized in that the pump is a positive displacement pump.
A system according to claim 3, characterized in that the pump has a first feed screw with a greater feeding capacity than a second downstream feed screw.
Dependencies are inferred from the claim text.