WO2009013434A2 - Dispositif d'extraction d'un matériau situé au fond d'une étendue d'eau et procédé associé - Google Patents
Dispositif d'extraction d'un matériau situé au fond d'une étendue d'eau et procédé associé Download PDFInfo
- Publication number
- WO2009013434A2 WO2009013434A2 PCT/FR2008/051346 FR2008051346W WO2009013434A2 WO 2009013434 A2 WO2009013434 A2 WO 2009013434A2 FR 2008051346 W FR2008051346 W FR 2008051346W WO 2009013434 A2 WO2009013434 A2 WO 2009013434A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- surface installation
- flexible
- conduit
- water
- drum
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
- E21B17/203—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with plural fluid passages
-
- 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
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9243—Passive suction heads with no mechanical cutting means
-
- 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
- E02F7/10—Pipelines for conveying excavated materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
Definitions
- the present invention relates to a device for extracting a material situated at the bottom of a body of water, of the type comprising: a surface installation intended to extend at least partially above the surface of the body of water ;
- a bottom assembly comprising means for sampling the material on the bottom of the body of water
- a material transport pipe connecting a first point located on the surface installation to a second point located on the bottom assembly, the transport pipe delimiting at least one circulation passage of the material;
- the functional line being capable of transmitting electrical or hydraulic power, information or a fluid between the installation surface and the bottom assembly, the surface installation comprising at least one winding drum of the or each functional line.
- This system applies, for example, to the mining of submarine bottoms, or the earthworks of submarine soils for the setting up of hydrocarbon production facilities.
- FR-A-2 467 283 discloses a device of the aforementioned type.
- This device comprises a surface installation carried by a ship, and a bottom assembly.
- This set includes a base station and an extraction vehicle traveling on the seabed and connected to the base station by a flexible link designated by the English term "jumper".
- the bottom assembly is lowered into the water using a string of rigid rods that connects the base station to the surface installation.
- the drill string internally delimits a circulation passage of material taken from the bottom, to convey it to the surface.
- a gas injection line in the drill string and electric power transfer lines forming a link termed "umbilical” have descended into the sea to the intermediate station from the ship.
- An example of an umbilical is described in GB 2 395 539. To deploy the device, it is necessary to successively mount each stem of the drill string on the surface ship during the descent of the bottom assembly, then to simultaneously lower the gas injection line and the umbilical including the power lines, assembling them on each rod.
- the ship must have a very large storage space for the assembly and storage of rigid tubes and the umbilical.
- An object of the invention is to obtain a device for extracting a material located at the bottom of a body of water that is simple to implement and not very bulky.
- the invention relates to a device of the aforementioned type, characterized in that the transport pipe is flexible over substantially its entire length, the or each functional line being arranged around the transport pipe to form a flexible conduit the conveying conduit and the or each functional line being jointly deployable between a rest configuration wound on the winding drum and a deployed configuration towards the bottom of the water body.
- the device according to the invention may comprise one or more of the following characteristics, taken in isolation or according to any technically possible combination (s):
- the flexible duct comprises an annular ply surrounding the transport duct, the ply delimiting longitudinal passages for receiving the or each functional line in which the or each functional line is inserted;
- the surface installation comprises a ship, the drum being rotatably mounted on a platform of the ship;
- the ship delimits a lateral edge, the flexible duct being deployed transversely towards the outside of the ship facing the lateral edge;
- the flexible duct comprises a plurality of sections assembled end to end;
- each section comprises a tubular part and, at each end of the tubular part, a connection flange to an adjacent section of transverse dimension greater than that of the central part, and the drum delimits:
- At least one groove for receiving the connecting flanges of at least two adjacent sections, movable around the bearing surface, said flanges being inserted into the groove when the flexible duct occupies its wound configuration;
- the bottom assembly comprises a base, and an extractor vehicle connected to the base by a flexible link delimiting a material transport light, the opening opening in the flow passage and facing the sampling means;
- the surface installation comprises a gas / liquid / solid separator delimiting a separation chamber connected to the circulation passage;
- the separation chamber comprises:
- the flexible duct comprises at least one gas injection line of the material, the gas injection line opening into the circulation passage away from the surface installation, the surface installation comprising a compressor having an input connected to the separator and an output connected to the gas injection line; in the deployed configuration, the flexible duct comprises at least one unit for injecting liquid under pressure into the circulation passage, the pressurized liquid being able to drive the material towards the surface installation;
- the winding drum defines an interior volume, the separation chamber being disposed at least partially in the interior volume; the bottom assembly comprises an extractor vehicle provided with sampling means; and
- the bottom assembly comprises a material collection support, connected to the flexible conduit, the collection support being intended to be placed on the bottom for collecting the material taken by the sampling means, the sampling means being deployable from the surface installation independently of the collection medium.
- the invention furthermore relates to a process for extracting a material situated at the bottom of a body of water, using a device as defined above, the process being of the type comprising the following steps:
- FIG. 1 is a schematic side view and in partial perspective a first extraction device according to the invention, with its flexible conduit deployed;
- FIG. 2 is a schematic partial sectional view of a marked detail II of Figure 1;
- - Figure 3 is a partially exploded perspective view of the flexible conduit of the first device according to the invention;
- FIG. 4 is a partial diagrammatic perspective view of three-quarter faces of the winding drum of the flexible pipe of FIG. 1, the flexible pipe being partially wound around the drum;
- - Figure 5 is a view similar to Figure 4 of the drum without the conduit;
- FIG. 6 is an end view taken along the arrow V1 of Figure 4.
- FIG. 7 is a view taken in partial section along the longitudinal vertical plane VII of FIG. 4;
- - Figure 8 is a view similar to Figure 2 of a second device according to the invention comprising a pumping unit by water injection;
- FIG. 9 is a view similar to FIG. 8 of a third device according to the invention.
- - Figure 10 is a cross-sectional view along the X-X plane of Figure 9;
- FIG. 11 is a view similar to Figure 1 of a fourth device according to the invention.
- FIG. 1 to 10 An extraction device 10 according to the invention is shown in Figures 1 to 10.
- This device 10 is intended to collect materials located at the bottom of a body of water 12 such as a sea, an ocean or a lake.
- the body of water 12 rests on a bottom 14 delimited by solid material comprising rocks and / or sediments.
- the purpose of the device 10 is to carry out, for example, earthworks on the bottom 14 with a view to setting up a hydrocarbon exploitation facility, or to withdraw ores deposited on the bottom 14 in order to from their subsequent exploitation on the surface 16 of the body of water 12.
- the device 10 comprises a surface installation 18 carried by a ship 20, a bottom assembly 22 for taking the material on the bottom 14 of the body of water 12, and, according to the invention, a flexible duct 24 of the "integrated production beam” type, or "Integrated Production
- the bottom assembly 22 comprises a base station 26 attached to the lower end of the conduit 24, an excavating vehicle 28, placed in contact with the bottom 14 of the water body 12, and a flexible link 30 connecting the vehicle 28 at base station 26.
- the base station 26 is intended to be placed in the vicinity of the bottom 14, away from it during the exploitation of materials.
- the base station 26 comprises equipment (not shown) for pumping and treating the sampled material, such as, for example, pumps or filters, and control means for the excavating vehicle 28.
- the excavating vehicle 28 is intended to come into contact with the bottom 14 to collect material on the bottom 14. It comprises the means 32 for moving the on the bottom 14 and means 34 for sampling the material, able to dig, scrape or drill the material constituting the bottom 14 and transport it to the flexible link 30.
- the bottom of the base station 26 is provided with a flap (26A ( Figure 1) which is pivotal by appropriate means, not shown.
- This flap 26A makes it possible, in its open position, to evacuate the materials blocked in the station. In this case, the excavating vehicle 28 is placed below the base station 26 and these materials fall into the vehicle 26 where they are ground.
- the flexibility of the flexible link 30 is greater than that of the flexible conduit 24.
- the vehicle 28 is mobile with respect to the base station 26, in particular on the bottom 14, up to a maximum distance from the base station 26 substantially. equal to the length of the flexible hose 36. This maximum distance is between 10 m and 40 m and preferably less than 50 m.
- the flexible duct 24 extends between a first point 38 located at its upper end on the surface installation 18, and a second point 40 located at its lower end on the base station 26.
- the duct 24 is flexible over its entire length, taken between the points 38, 40.
- the duct 24 is adapted to be wound on a rotating drum between an unwrapped configuration and a helically wound configuration in which it occupies a radius of curvature of between 12 m and 15 m and preferably less than 20 m.
- the flexible duct 24 comprises a central pipe 42 for transporting the material taken from the bottom 14, from the base station 26 to the surface installation 18.
- the duct 24 further comprises, around the duct 42, an outer functional sheet 43 receiving functional lines 44 able to transmit electrical or hydraulic power, information and / or fluids from the surface installation 18 to the bottom assembly 22, the lines 44 being arranged in the outer ply 43 around the transport pipe 42.
- the duct 24 also comprises a line 46 for injecting gas for driving the material in the transport pipe 42, disposed in the web 43 and an outer protection sheath 47 disposed around the web 43.
- the transport pipe 42 is generally in accordance with the API standard.
- 17J It is flexible throughout its length. It comprises, for example, from the inside to the outside, an internal tubular metal casing 47A for the resistance to pressure, a gas-tight plastic sheath 47B, an outer casing 47C and two layers of armor wires 47D to ensure tensile strength.
- the conveying line 42 delimits internally a passage 48 for circulation of sampled material which opens on the one hand, at the first point 38, and on the other hand, at the second point 40.
- the transport pipe 42 is connected in series with the tube flexible 36, so that the inner lumen 37 opens into the passage 48.
- the length of the flexible duct 24, taken between the first point 38 and the second point 40, is variable depending on the depth at which the seabed is located and preferably greater than 1000 m.
- the flexible duct 24 is formed by the end-to-end assembly of a plurality of flexible unitary sections 50 of length preferably between 300 m and 400 m.
- the flanges 54A, 54B of two adjacent sections 50 are fixed against each other for example by screwing.
- Each unit section 50 delimits a portion of the inner passage 48 and carries a unitary section of the lines 44 and 46 which are interconnected through the attachment flanges 54A, 54B.
- the ship 20 delimits a platform 60 supporting the surface installation 18 extending between two side edges 62 of the ship.
- the work station 63 moves on a rail 64A disposed on a side of the ship 20.
- the winding drum 68 extends along a substantially horizontal longitudinal axis XX 'of the ship 20.
- the drum 68 comprises a hollow cylinder 80, which has at its left and right ends transverse locking flanges 82 of the flexible duct 24.
- the drum 68 also has, on at least one circumference taken along the outer surface 84, two support wedges 88 for supporting two adjacent sections 50 of the duct.
- the shims 88 protrude from the outer surface 84 and delimit between them a longitudinal groove 90 for receiving the flanges 54 for fixing two adjacent sections 50.
- the upper end of the duct 24 is fixed on a connection nozzle 118.
- the lumen 37 inside the flexible pipe is connected to the internal passage 48, which opens into the separation chamber 114 of the separator 72.
- the conduit 24 is deployed over the side edge 62 of the vessel 20 outwardly overlapping this edge 62. It is therefore not necessary to have a vessel 20 comprising a central well for deploying the device. extraction 10.
- the vehicle 28 and the base station 26 are electrically powered from the surface installation 18 through the lines 44 to propel the vehicle 28 and activate the pickup means 34.
- the movement of the vehicle 28 and the start of the sampling means 34 by the control means 76 are controlled from the surface installation 18 through the lines 44.
- control means 76 send an activation signal to the base station 26 and the vehicle 28 to electrically power the sampling means 34 and control the movement of the vehicle 28 on the bottom 14.
- the sampling means 34 take the material located on the bottom and bring it to the entrance of the light 37.
- a continuous flow of sampled material is then established between the sampling means 34 and the separation chamber 114 through successively the light
- the solid material accumulates in the bottom of the chamber 114 around the worm 130.
- the valve 132 is opened and the worm 130 is activated to evacuate the solid material and a part of the liquid, through the intermediate pipe 128 to the retention tank 102.
- pressurized water is injected through the inlet 124.
- the bottom assembly 22 is mounted to the surface by winding the conduit 24 around the drum 68 as previously described.
- the hydraulic turbine 218 is fixed on the sleeve 214.
- the turbine 218 is fed hydraulically through a tapping 224 on a functional line 44A coming from the installation 18.
- the tapping 224 opens into the water body 12 by an evacuation 226 after passing through the turbine 218, without being connected to a lower part of the line 44A located in the section 50 under the sleeve 214.
- the sleeve 214 further delimits at least one section 228 of another functional line 44B intended to feed another pumping unit located under the unit 212.
- the third device 250 shown in Figures 9 and 10 differs from the second device 210 in that the injection units 212 are devoid of hydraulic turbines.
- the pressurized liquid to be injected into the circulation passage 48 is stored in a pressurized reservoir disposed on the vessel 20 in the surface plant 18.
- Each injection orifice 256 opens axially upwards into the passage 48.
- the pressurized water is fed into the cavity 254 of the distributor 252 from the reservoir of the surface installation 18, through the functional line 44A. . It is distributed uniformly in the cavity 254 to be injected through each orifice 256. More generally, such pumping units could be used on a flexible conduit of any installation.
- the support 320 and the crusher / crusher 322 are connected to a free end of the flexible link 30, to connect the hose 36 to the crusher / crusher 322.
- the receiving means 314 and the flexible conduit 24 are lowered towards the bottom 14, until the support 320 is placed on the bottom 14 while being immobilized on the bottom 14.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Ocean & Marine Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010516557A JP5373786B2 (ja) | 2007-07-18 | 2008-07-17 | 水域の底から物質を抽出するための装置、及び関連した方法 |
BRPI0814574-1A BRPI0814574B1 (pt) | 2007-07-18 | 2008-07-17 | Dispositivo e processo de extração de um material situado no fundo de uma extensão de água |
EP08826537.6A EP2171163B1 (fr) | 2007-07-18 | 2008-07-17 | Dispositif d'extraction d'un matériau situé au fond d'une étendue d'eau et procédé associé |
NZ582682A NZ582682A (en) | 2007-07-18 | 2008-07-17 | Device and method for extracting a material from the bed of a body of water |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0756579A FR2919015B1 (fr) | 2007-07-18 | 2007-07-18 | Dispositif d'extraction d'un materiau situe au fond d'une etendue d'eau et procede associe |
FR0756579 | 2007-07-18 | ||
FR0756718A FR2919016B3 (fr) | 2007-07-18 | 2007-07-24 | Dispositif d'extraction d'un materiau situe au fond d'une etendue d'eau et procede associe. |
FR0756718 | 2007-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009013434A2 true WO2009013434A2 (fr) | 2009-01-29 |
WO2009013434A3 WO2009013434A3 (fr) | 2009-03-12 |
Family
ID=39133716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2008/051346 WO2009013434A2 (fr) | 2007-07-18 | 2008-07-17 | Dispositif d'extraction d'un matériau situé au fond d'une étendue d'eau et procédé associé |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2171163B1 (fr) |
JP (1) | JP5373786B2 (fr) |
BR (1) | BRPI0814574B1 (fr) |
FR (2) | FR2919015B1 (fr) |
NZ (1) | NZ582682A (fr) |
PT (1) | PT2171163T (fr) |
WO (1) | WO2009013434A2 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10190722B2 (en) | 2014-05-06 | 2019-01-29 | Technip France | Unbonded flexible pipe for transporting an abrasive material, associated method and associated use |
CN111302096A (zh) * | 2020-02-25 | 2020-06-19 | 湘潭大学 | 一种海洋采矿柔性管道运输装置 |
WO2021255291A1 (fr) | 2020-06-18 | 2021-12-23 | The University Of Bristol | Complexes d'acides gras de protéine de spicule de coronavirus et leur utilisation |
WO2022029334A1 (fr) | 2020-08-07 | 2022-02-10 | Gbiotech S.À.R.L. | Polythérapies pour le traitement d'une infection à coronavirus |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011003438A1 (fr) * | 2009-07-06 | 2011-01-13 | Damen Dredging Equipment B.V. | Système de navire de dragage pour dragage en haute mer |
EP2582915B1 (fr) * | 2010-06-18 | 2019-12-18 | Nautilus Minerals Pacific Pty Ltd | Système pour l'exploitation minière de fonds océaniques |
NL2006782C2 (en) * | 2011-05-13 | 2012-11-14 | Ihc Holland Ie Bv | Dredger provided with a remotely operable dredging vehicle, and method for dredging using such a dredger system. |
FR2978489B1 (fr) * | 2011-07-29 | 2013-07-05 | IFP Energies Nouvelles | Conduite flexible avec tube d'injection et procede de transport d'un effluent petrolier |
US8820412B2 (en) * | 2011-09-16 | 2014-09-02 | Chevron U.S.A. Inc. | Methods, systems and apparatus for circulating fluid within the annulus of a flexible pipe riser |
CN108386195B (zh) * | 2017-12-29 | 2019-09-13 | 中国船舶工业集团公司第七0八研究所 | 一种海底采矿系统布放回收装置及其海试方法 |
CN111551686B (zh) * | 2020-06-15 | 2021-04-02 | 江西省瑞昌润泉供水有限公司 | 一种水质监测智能卷筒 |
CN112681992B (zh) * | 2021-01-06 | 2023-08-15 | 中海油田服务股份有限公司 | 一种海上作业系统 |
KR102443356B1 (ko) * | 2021-10-20 | 2022-09-15 | (주)백건준설 | 유압식 수중 무인 준설장비 시스템 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2341264A1 (de) * | 1972-08-22 | 1974-02-28 | Lespinasse Pierre | Vorrichtung zur materialaufnahme auf dem boden von gewaessern |
JPS4966504A (fr) * | 1972-10-31 | 1974-06-27 | ||
FR2313547A1 (fr) * | 1975-06-04 | 1976-12-31 | Coflexip | Dispositif pour la recuperation de matieres solides sous-marines et procede pour la mise en oeuvre de ce dispositif |
US4053181A (en) * | 1976-01-20 | 1977-10-11 | Nakaji Saito | Seabed mining utilizing circulating current based on water level differences |
GB2395539A (en) * | 2002-11-20 | 2004-05-26 | Coflexip | Umbilical |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4232903A (en) * | 1978-12-28 | 1980-11-11 | Lockheed Missiles & Space Co., Inc. | Ocean mining system and process |
JPH06137471A (ja) * | 1992-10-29 | 1994-05-17 | Furukawa Electric Co Ltd:The | 可撓性流体輸送管 |
-
2007
- 2007-07-18 FR FR0756579A patent/FR2919015B1/fr active Active
- 2007-07-24 FR FR0756718A patent/FR2919016B3/fr not_active Expired - Lifetime
-
2008
- 2008-07-17 BR BRPI0814574-1A patent/BRPI0814574B1/pt active IP Right Grant
- 2008-07-17 PT PT88265376T patent/PT2171163T/pt unknown
- 2008-07-17 JP JP2010516557A patent/JP5373786B2/ja active Active
- 2008-07-17 NZ NZ582682A patent/NZ582682A/en unknown
- 2008-07-17 EP EP08826537.6A patent/EP2171163B1/fr active Active
- 2008-07-17 WO PCT/FR2008/051346 patent/WO2009013434A2/fr active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2341264A1 (de) * | 1972-08-22 | 1974-02-28 | Lespinasse Pierre | Vorrichtung zur materialaufnahme auf dem boden von gewaessern |
JPS4966504A (fr) * | 1972-10-31 | 1974-06-27 | ||
FR2313547A1 (fr) * | 1975-06-04 | 1976-12-31 | Coflexip | Dispositif pour la recuperation de matieres solides sous-marines et procede pour la mise en oeuvre de ce dispositif |
US4053181A (en) * | 1976-01-20 | 1977-10-11 | Nakaji Saito | Seabed mining utilizing circulating current based on water level differences |
GB2395539A (en) * | 2002-11-20 | 2004-05-26 | Coflexip | Umbilical |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10190722B2 (en) | 2014-05-06 | 2019-01-29 | Technip France | Unbonded flexible pipe for transporting an abrasive material, associated method and associated use |
CN111302096A (zh) * | 2020-02-25 | 2020-06-19 | 湘潭大学 | 一种海洋采矿柔性管道运输装置 |
CN111302096B (zh) * | 2020-02-25 | 2022-02-22 | 湘潭大学 | 一种海洋采矿柔性管道运输装置 |
WO2021255291A1 (fr) | 2020-06-18 | 2021-12-23 | The University Of Bristol | Complexes d'acides gras de protéine de spicule de coronavirus et leur utilisation |
WO2022029334A1 (fr) | 2020-08-07 | 2022-02-10 | Gbiotech S.À.R.L. | Polythérapies pour le traitement d'une infection à coronavirus |
Also Published As
Publication number | Publication date |
---|---|
FR2919016B3 (fr) | 2009-09-25 |
BRPI0814574A2 (pt) | 2015-01-20 |
EP2171163A2 (fr) | 2010-04-07 |
FR2919016A1 (fr) | 2009-01-23 |
PT2171163T (pt) | 2017-06-12 |
JP5373786B2 (ja) | 2013-12-18 |
FR2919015B1 (fr) | 2009-09-25 |
WO2009013434A3 (fr) | 2009-03-12 |
BRPI0814574B1 (pt) | 2018-02-27 |
EP2171163B1 (fr) | 2017-03-01 |
NZ582682A (en) | 2011-11-25 |
FR2919015A1 (fr) | 2009-01-23 |
JP2010533808A (ja) | 2010-10-28 |
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