US20150367917A1 - Production Support and Storage Vessel - Google Patents

Production Support and Storage Vessel Download PDF

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Publication number
US20150367917A1
US20150367917A1 US14/651,217 US201314651217A US2015367917A1 US 20150367917 A1 US20150367917 A1 US 20150367917A1 US 201314651217 A US201314651217 A US 201314651217A US 2015367917 A1 US2015367917 A1 US 2015367917A1
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United States
Prior art keywords
vessel
seafloor
production support
bulk storage
storage silos
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Abandoned
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US14/651,217
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English (en)
Inventor
Daal Hallam Jaffers
Michael Howitt
Roland Berndt
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Nautilus Minerals Pacific Pty Ltd
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Nautilus Minerals Pacific Pty Ltd
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Filing date
Publication date
Priority claimed from AU2012905437A external-priority patent/AU2012905437A0/en
Application filed by Nautilus Minerals Pacific Pty Ltd filed Critical Nautilus Minerals Pacific Pty Ltd
Publication of US20150367917A1 publication Critical patent/US20150367917A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/04—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods solid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/22—Arrangement of ship-based loading or unloading equipment for cargo or passengers of conveyers, e.g. of endless-belt or screw-type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8833—Floating installations
    • E02F3/885—Floating installations self propelled, e.g. ship
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • E02F3/8866—Submerged units self propelled
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/005—Equipment for conveying or separating excavated material conveying material from the underwater bottom
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger
    • E02F7/023—Conveying equipment mounted on a dredger mounted on a floating dredger
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/04—Loading devices mounted on a dredger or an excavator hopper dredgers, also equipment for unloading the hopper
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/06—Floating substructures as supports
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B2003/147—Moon-pools, e.g. for offshore drilling vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
    • B63B2027/165—Deployment or recovery of underwater vehicles using lifts or hoists
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4486—Floating storage vessels, other than vessels for hydrocarbon production and storage, e.g. for liquid cargo
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2207/00—Buoyancy or ballast means
    • B63B2207/02—Variable ballast or buoyancy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • B63H2025/425—Propulsive elements, other than jets, substantially used for steering or dynamic anchoring only, with means for retracting, or otherwise moving to a rest position outside the water flow around the hull

Definitions

  • the transport vessel then transports the material to a storage vessel that includes bulk storage for the gathered seafloor material.
  • a storage vessel that includes bulk storage for the gathered seafloor material.
  • the transport vessel can transport the material directly to a land based storage facility. Either way, typically two or three transport vessels need to be employed, more for longer distances, to provide sufficient capacity to transport the gathered seafloor material from the support vessel to the storage vessel or facility. Once sufficient ore has been stored it is loaded onto export vessels that take the ore to market.
  • the logistics in receiving and transporting the seafloor material therefore requires a significant fleet of vessels. This increases the cost and complexity of transporting gathered seafloor material from the source to market. Furthermore, many mooring operations between the vessels are required, in some cases more than 500 per year. Each mooring operation has a chance of a vessel collision and damage to equipment.
  • a production support vessel for use on a body of water, the production support vessel comprising:
  • seafloor material receiver that receives seafloor material from below the surface of the body of water
  • seafloor material processor that processes seafloor material from the seafloor material receiver
  • one or more bulk storage silos that store processed seafloor material from the seafloor material processor
  • an unloading system configured to offload processed seafloor material from the bulk storage silos to a transport vessel moored alongside the production support vessel.
  • the bulk storage silos occupy a significant portion, preferably a majority portion, of an internal space defined by a hull of the production support vessel.
  • the one or more bulk storage silos preferably have a combined capacity of more than one week's worth of production, preferably more than 20,000 t of ore, even more preferably more than 30,000 t of ore, still more preferably more than 40,000 t of ore.
  • four bulk storage silos are provided having a combined capacity of between 40,000 t and 50,000 t, preferably around 45,000 t.
  • the four bulk storage silos are preferably arranged in two pairs of adjacent bulk storage silos.
  • One pair of adjacent bulk storage silos is preferably located toward the aft and another pair of adjacent bulk storage silos is preferably located toward the bow.
  • the bulk storage silos are preferably aligned along a longitudinal axis of the vessel.
  • the loading system preferably distributes seafloor material, preferably ore, from the seafloor material processor to the one or more bulk storage silos.
  • the loading system comprises one or more loading conveyors, preferably including one or more scraper or chain conveyors, to distribute the ore to the bulk storage silos.
  • a single loading system is capable of distributing the ore to any of the bulk storage silos.
  • the loading system also has the ability to bypass the storage silos and deliver ore directly to the transport vessel moored alongside the production support vessel.
  • the loading conveyors include longitudinal and transverse conveyors to distribute the ore to the bulk storage silos.
  • the ore is distributed evenly in each bulk storage silo to maximise volume stored and to provide for ship loading ballast and stability considerations.
  • the unloading conveyor system includes at least mechanical grab which delivers ore to a hopper that feeds a vertical lifter system.
  • the unloading conveyor system also preferably includes a vertical lifter, preferably a C-conveyor, that receives material from the grab and hopper and a boom conveyor that receives material from the vertical lifter.
  • the boom conveyor is preferably configured to offload the material, typically to a transportation vessel.
  • the seafloor material receiver preferably includes at least a portion of a riser and the seafloor material processor preferably includes a dewatering plant.
  • the seafloor material processor may comprise a lime storage and dosing system.
  • the production support vessel preferably further comprises at least one crane.
  • the production support vessel includes two cranes, a forward crane and an aft crane, that are preferably located on the same side of the vessel.
  • the vessel preferably further comprises one or more vehicle bays configured to store seafloor vehicles.
  • the seafloor vehicles are preferably seafloor mining vehicles that are unloaded and loaded from the vessel via the vehicle bays.
  • a lift winch and/or hydraulic power unit (HPU) are preferably provided for unloading and loading each seafloor mining vehicle.
  • a vehicle bay may be provided for a seafloor stockpiling bulk cutter, a seafloor auxiliary cutter, and/or a seafloor collecting machine.
  • a vehicle bay and corresponding winch and HPU are provided for each of a seafloor stockpiling bulk cutter, a seafloor auxiliary cutter, and a seafloor collecting machine.
  • the vessel preferably further comprises a moon pool that extends vertically through at least a portion of the vessel.
  • the moon pool is preferably an open moon pool that is located in a central portion of the vessel, preferably along a centreline of the vessel.
  • the moon pool is preferably substantially square or rectangular. In a preferred form, the moon pool is a 10 m ⁇ 10 m square.
  • a derrick is preferably located adjacent the moon pool. In a preferred form, the derrick is located directly above the moon pool.
  • the vessel has a length between perpendiculars (BP) of between 150 and 250 m, preferably between 180 and 230 m, even more preferably between 200 and 220 m, most preferably around 210 m.
  • BP perpendiculars
  • the vessel has a breadth of between 20 and 60 m, preferably between 30 and 50 m, even more preferably between 35 and 45 m, and most preferably around 40 m.
  • a method of processing material gathered from the seafloor comprising the steps of:
  • the step of storing processed seafloor material on the vessel preferably includes storing at least one full day's worth of production, more preferably at least three day's worth of production, and even more preferably at least five day's worth of production.
  • the step of storing processed seafloor material on the vessel includes storing at least one week's worth of production which is, preferably, approximately 45,000 t of processed seafloor material.
  • the method may further comprise the step of transporting the seafloor mining vehicles on the vessel, and lowering the one or more seafloor mining vehicles from the vessel to the seafloor.
  • the method may also further comprise retrieving one or more seafloor mining vehicles from the seafloor and placing them on the vessel.
  • the seafloor is greater than 500 m below sea level, even more preferably greater than 1,000 m below sea level, even more preferably greater than 2,000 m below sea level, and the steps of lower and retrieving the seafloor mining vehicles comprises lowering and retrieving the vehicles over a distance of at least 500 m, more preferably over a distance of at least 1,000 m, even more preferably over a distance of at least 2,000 m.
  • the step of conveying stored seafloor material from the one or more bulk storage silos to a transport vessel includes conveying the stored seafloor material to the transport vessel whilst at sea.
  • the seafloor material is conveyed using one or more scoopers, one or more bucket elevators or C-conveyors, and one or more boom conveyors.
  • the step of conveying stored seafloor material preferably comprises retrieving the stored seafloor material from the one or more bulk storage silos using a scooper and placing it in a bucket elevator which transfers the seafloor material to a boom conveyor which offloads the material to the transport vessel.
  • FIG. 1 is a partially transparent side elevation view of a production support vessel according to an aspect of the invention
  • FIG. 2 is a plan view of the production support vessel illustrated in FIG. 1 ;
  • FIG. 3 is a plan view of the production support vessel illustrated in FIG. 1 with a transport vessel moored thereto;
  • FIG. 4 is a plan view showing the deck of the production support vessel illustrated in FIG. 1 ;
  • FIG. 5 is a cross sectional view of the production support vessel illustrated in FIG. 1 ;
  • FIG. 6 is a flowchart of an overview of a method according to an aspect of the invention.
  • FIGS. 1 to 5 illustrate a production support vessel 100 having a hull 110 which supports a mining and processing equipment portion 120 and an administration and accommodation portion 180 .
  • the vessel 100 has a seafloor material receiver in the form of a riser 200 that is connected to seafloor mining equipment (not shown), which typically operates at depths of 1,000-2,500+ metres below sea level, during seafloor mining operations.
  • the mining and processing equipment portion 120 of the production support vessel 100 has three vehicle bays for storing seafloor mining vehicles used in the seafloor mining operations, including a stockpiling bulk cutter (SBC) vehicle bay 126 , an auxiliary cotter (AC) vehicle bay 128 , and a collecting machine (CM) vehicle bay 130 that house an SBC 126 ′, AC 128 ′, and CM 130 ′.
  • SBC stockpiling bulk cutter
  • AC auxiliary cotter
  • CM collecting machine
  • Adjacent the SBC vehicle bay 126 is an SBC lift winch 132 and SBC hydraulic power unit 134 ; adjacent the AC vehicle bay 128 is an AC lift winch 136 and AC hydraulic power unit 138 ; and adjacent the CM vehicle bay 130 is a CM lift winch 140 and CM hydraulic power unit 142 .
  • the lift winches 132 , 136 , and 140 and hydraulic power units 134 , 138 , and 142 may be utilised in the loading and unloading of the SBC 126 ′, AC 128 ′, and CM 130 ′ vehicles from the vessel 100 .
  • a derrick 144 is provided that extends vertically above a 10 m square moon pool 146 that, as shown in FIG. 1 , extends vertically through the hull 110 of the vessel 100 .
  • the riser 200 passes through the moon pool 146 to equipment located at or near the seafloor during seafloor mining operations.
  • the moon pool 146 is located generally centrally on the vessel 100 , being centred with respect to the vessel's centreline 10 . Adjacent the moon pool 146 is a derrick substructure 144 ′.
  • the production support vessel 100 has a loading system that includes loading conveyors 150 , which preferably include transverse chain conveyors, that distribute processed ore from the dewatering plant 300 to the bulk storage silos 400 , 420 , 440 , and 460 .
  • the loading conveyors 150 are able to selectively distribute processed ore to any one of the bulk storage silos 400 , 420 , 440 , and 460 .
  • the production support vessel 100 has an unloading system that includes two unloading conveyor systems that each retrieve ore from adjacent pairs of bulk storage silos 400 , 420 , 440 , and 460 .
  • An aft unloading conveyor system comprises a longitudinal scooper 402 and a transverse scooper (not shown) located in bulk storage silo 400 , a longitudinal scooper 422 and transverse scooper (not shown) located in bulk storage silo 420 , a vertical lifter in the form of a bucket elevator 430 located between the aft pair of bulk storage silos 400 and 420 , and a boom conveyor 432 .
  • a forward unloading conveyor system is similar to the aft unloading conveyor system, and comprises a longitudinal scooper 442 and a transverse scooper (not shown) located in bulk storage silo 440 , a longitudinal scooper 462 and transverse scooper (not shown) located in bulk storage silo 460 , a vertical lifter in the form of a bucket elevator 450 located between the forward pair of bulk storage silos 440 and 460 , and a boom conveyor 452 .
  • the boom conveyors 432 and 452 have respective offload ranges 432 ′ and 452 ′ as illustrated in FIGS. 2 and 3 .
  • a transport vessel 50 is shown moored to the production support vessel 100 .
  • the transport vessel 50 has a plurality of cargo holds 52 that are each at least partially covered by the offload ranges 432 ′ and 452 ′ of the boom conveyers 432 and 452 .
  • the transport vessel 50 has a total carrying capacity of approximately 30,000 t DWT.
  • the boom conveyors 432 and 452 have the ability to lift and lower an earth moving machine (not shown) into and out of the cargo holds 52 of vessel 50 .
  • the earth moving machine is capable of levelling the material delivered to the cargo holds 52 of vessel 50 . This levelling ensures safe shipment of the processed material in the holds 52 .
  • the earth moving machine (not shown) is stored on the deck of the vessel 100 .
  • the production support vessel 100 has a length between perpendiculars (BP) of approximately 210 m, a length overall (OA) of approximately 227 m, and a breadth of approximately 40 m.
  • BP perpendiculars
  • OA length overall
  • the dimensions of the production support vessel 100 have been very carefully selected, and the layout of components carefully designed, to provide a single vessel 100 that caters for all surface support aspects of seafloor mining operations.
  • the production support vessel travels to a desired location carrying the SBC 126 ′, AC 128 ′, and CM 130 ′ vehicles.
  • the vehicles are lowered to the seafloor where they commence seafloor mining operations where they gather seafloor material (step 1000 of FIG. 6 ). Gathered seafloor material is transferred from the seafloor, typically over 1,000 m below sea level, to the production support vessel 100 (step 1100 of FIG. 6 ) via riser 200 where it is processed (step 1200 of FIG. 6 ) by dewatering plant 300 and distributed to bulk storage silos 400 , 420 , 440 , and 460 (step 1300 of FIG. 6 ).
  • the processed seafloor material is then stored in the bulk storage silos 400 , 420 , 440 , and 460 (step 1400 of FIG. 6 ) and then subsequently conveyed from the bulk storage silos 400 , 420 , 440 , and 460 to the transport vessel 50 (step 1500 of FIG. 6 ).
  • the capacity of the bulk storage silos 400 , 420 , 440 , and 460 is relatively high, ore is transferred to, and stored in, the bulk storage silos 400 , 420 , 440 , and 460 for approximately a week before it is unloaded to the transport vessel 50 .
  • the scoopers 402 , 422 , 442 , and 462 scrape ore from the top of the stored ore in the bulk storage silos 400 , 420 , 440 , and 460 and convey the ore to the bucket elevators 430 and 450 .
  • the bucket elevators 430 and 450 then convey the ore to the boom conveyors 432 and 452 which then offload the ore to the cargo holds 52 of the transport vessel 50 .
  • the transport vessel 50 then transports the ore to a designated location, e.g. to market, and the production support vessel 100 continues receiving, processing, and storing ore from the seafloor mining operations.
  • the production support vessel 100 can transport and undertake all aspects of seafloor mining operations including transporting and deploying the seafloor mining vehicles, SBC 126 ′, AC 128 ′, and CM 130 ′, receiving and processing gathered seafloor material, and providing bulk storage for the processed seafloor material to allow relatively large transport vessels 50 to subsequently receive the seafloor material and take it directly to market, or the like, without having to accumulate the materials at a further storage location such as a silo ship or on land.
  • the reduced number of mooring operations compared to a traditional production support vessel significantly increases efficiency while also reducing the risk of collision, personal injury, or environmental contamination occurring. In general, there is also increased safety and efficiency due to less personnel transfers, perishable transfers, and bunkering operations.
  • the large ballast of the production support vessel 100 reduces the impact between launch and recovery of mining equipment and vessel mooring operations, particularly when offloading significant quantities of stored material to the transport vessel 50 .
  • the ballast also allows the vessel 100 to adjust its draft or trim and/or heel to suit operations being performed by or in conjunction with the vessel 100 .
  • the safety is increased as mooring and lifting operations are simplified and there is a reduced risk of accident due to changes in relative freeboard between the two vessels.
  • the production support vessel 100 has a relatively large mass, which can be kept high with the large ballast capacity, the vessel 100 is more stable and has reduced motions and as a result the dynamic positioning system requires less fuel consumption to keep the vessel 100 in location.
  • the increased mass advantageously reduces motion of the vessel which improves crew comfort and safety.
  • the described loading and unloading system is preferred as it minimises space occupied by the loading and unloading equipment enabling the volume for storage of ore to be maximised.
  • seafloor seabed, subsea, or the like are for convenience only and could equally be applied to other bodies of water such as, for example, a lake with a lakebed, etc.
  • adjectives such as first and second, left and right, top and bottom, and the like may be used solely to distinguish one element or action from another element or action without necessarily requiring or implying any actual such relationship or order.
  • reference to an integer or a component or step (or the like) is not to be interpreted as being limited to only one of that integer, component, or step, but rather could be one or more of that integer, component, or step etc.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Ship Loading And Unloading (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
US14/651,217 2012-12-11 2013-11-28 Production Support and Storage Vessel Abandoned US20150367917A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2012905437A AU2012905437A0 (en) 2012-12-11 Production support and storage vessel
AU2012905437 2012-12-11
PCT/AU2013/001380 WO2014089599A1 (en) 2012-12-11 2013-11-28 Production support and storage vessel

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US20150367917A1 true US20150367917A1 (en) 2015-12-24

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CN106379496B (zh) * 2016-11-02 2019-09-03 湖北海洋工程装备研究院有限公司 一种供应船母船
CN110159268A (zh) * 2017-12-28 2019-08-23 武汉船舶设计研究院有限公司 一种深海采矿输送硬管夹持摇摆装置
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JP2019034739A (ja) 2019-03-07
CN104870305B (zh) 2017-11-10
AU2013359998A1 (en) 2015-05-28
EP2931594A1 (en) 2015-10-21
CN104870305A (zh) 2015-08-26
WO2014089599A1 (en) 2014-06-19
JP2016501772A (ja) 2016-01-21
KR20150086282A (ko) 2015-07-27
EP2931594A4 (en) 2016-08-10
JP6455842B2 (ja) 2019-01-23

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