EP1492699B1 - Navire submersible - Google Patents

Navire submersible Download PDF

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Publication number
EP1492699B1
EP1492699B1 EP03721147A EP03721147A EP1492699B1 EP 1492699 B1 EP1492699 B1 EP 1492699B1 EP 03721147 A EP03721147 A EP 03721147A EP 03721147 A EP03721147 A EP 03721147A EP 1492699 B1 EP1492699 B1 EP 1492699B1
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EP
European Patent Office
Prior art keywords
catamaran
barge
topsides
installation site
load supporting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03721147A
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German (de)
English (en)
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EP1492699A1 (fr
Inventor
Joop Roodenburg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huisman Equipment BV
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Itrec BV
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Publication date
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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 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/003—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting very large loads, e.g. offshore structure modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B77/00—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/52—Floating cranes

Definitions

  • the present invention relates to a method for lifting, lowering and transporting an object at sea, e.g. from a barge to an installation site, wherein use is made of a catamaran.
  • This method involves submerging the catamaran under the intended topsides to be installed, then rising by deballasting to lift the topsides, then while either partially submerged or at normal draft, to transport that topsides to a new position, then by ballasting and positioning to depositing that topsides on the new structure.
  • the invention also relates to a method for picking up a topsides for decommissioning using a load lifting system which is integral to the vessel, carrying the topsides and redepositing the topsides using the same lifting system.
  • a method has long been needed for moving large topsides in one piece, in less than stable seas.
  • the present invention was developed to enable the transport of rigs and drilling platforms even in rough seas by providing a vessel, which can move while submerged at one or more drafts, or to transport at normal draft. This is achieved by a method according to the characterizing part of claim 1.
  • a catamaran (2) is shown having a bow (4) and a stern (6).
  • the catamaran has a first hull (8) and a second hull (10).
  • the first and second hulls (8) and (10) each have a similar construction of bow, midsection and stern section.
  • the first hull has a first hull rounded triangular bow (50), a first hull, midsection (54), a first hull stern section (58), and first hull stern (62).
  • the second hull (10) has a second hull rounded triangular bow (52), second hull midsection (56), second hull stern section (60) and second hull stern (64).
  • the first and second hulls (8) and (10) are disposed in a parallel relation to each other along a center line (158).
  • the first hull stern section (58) and the second hull stern section (60) have a tapered shape.
  • they can be of a rectangular design, however the tapered shape enables easier positioning of the catamaran when engaging objects at sea.
  • FIG 1 also shows that each hull has a ballast system.
  • First hull (8) has ballast tank (34) and second hull (10) has ballast tank (35).
  • An air gap (13) which is shown in better detail in later Figures, is present between the first and second hulls and the solid support surface (12).
  • a slot opening (15) is disposed between first and second hull stern sections.
  • the slot opening in a preferred embodiment is between 10 and 80 meters in width and 10-80 meters in length. In a most preferred embodiment the slot opening (15) is 50 meters in width.
  • the slot opening (15) has a U-shape.
  • the slot opening (15) is sized to position at least partially around a structure in a marine environment, such as around a jacket or a spar or similar deep draft floating caisson structure as shown in more detail in FIG 7.
  • Other structures which could be positioned in slot opening (15) include a floating platform, a fixed leg platform or another floating vessel.
  • FIG 2 is a starboard view of the catamaran, shows that the support surface (12) forms a top on the first and second hulls. This solid support surface (12) can support very heavy loads.
  • the catamaran has two towers or columns which are disposed generally above the hulls approximately in a longitudinal symmetry plane.
  • the two hulls and the columns are rigidly interconnected by the support surface (12).
  • the towers or columns can contain propulsion and control mechanisms, crew accommodation and other equipment, such as ROV's, diver work chambers, pipeline repair gear or other operating equipment.
  • the catamaran has load supporting moveable columns (14,16) and (17,19) which are disposed on the support surface (12). Additional moveable columns are also contemplated as usable on this catamaran. These load supporting moveable columns can support very heavy loads, such as a top sides, or objects, such as plates of steel or a hatch can be placed on the load supporting moveable columns and then a load placed on the hatch. These load supporting moveable columns can also be used as a lifting device in combination with a hatch of the catamaran.
  • load supporting moveable columns are shown, as (14), (16), (17) and (19).
  • four moveable support columns are contemplated, two disposed on the first hull and two disposed on the second hull.
  • load supporting moveable columns could be used on a catamaran. These columns can be skiddable on the support surface (12). Alternatively, these columns can be detachable from the support surface.
  • the support columns are detachably fitted on the hulls. This has the advantage that the support columns can be removed from the vessel at the point in time when they are not needed. This makes a difference in weight and, furthermore, space is made free on the deck in this way.
  • the position of the support columns on the hulls is adjustable.
  • the construction of the catamaran is so rigid and so strong that the position of the support columns on the hulls can be freely chosen.
  • the support columns can be placed in an optimum position, depending on the load that has to be transported.
  • the support columns can be positioned close to the stern of the catamaran.
  • the one or more fixed columns, with the crew accommodation etc. therein, are preferably located at the bow of the catamaran.
  • Two fixed columns can also be disposed on the hulls, preferably one on each float.
  • the open space between the two hulls is filled by hatches in order to increase the effective surface area of the deck. Provision is made that these hatches can be fixed to the side of the hulls. In this case the volume of the vessel is appreciably increased at this location. As a result the lifting capacity of the catamaran will be increased at the location of the hatches.
  • FIG 2 shows one of the two fixed columns, the first fixed column (18) disposed on the hull (8).
  • FIG 3 shows the second fixed column (20) disposed on the second hull (10).
  • These fixed columns are contemplated to be single hulled or double hulled. Double hulling is helpful if the columns should contain a fluid that is harmful to the environment. This construction helps to create an environmental friendly vessel.
  • ballast system (34) is shown disposed in the hull (8). It is contemplated that at least two ballast systems are used, one for each hull.
  • FIG 1 shows the preferred positioning of each of the two ballast tanks which would be used in this vessel.
  • These ballast systems are used to raise and lower the catamaran with respect to the waterline.
  • the ballast systems can be used to keep the catamaran at first, a normal draft, or second, a slightly submerged draft, wherein water fills the air gap (13) between the first and second hulls (8) and (10) and the solid support surface (12) is above the water level, or third, a lower draft, wherein between 1 and 16 meters of water covers the solid support surface (12).
  • first and second ballast systems (34) and (35) can be used to raise and lower the catamaran between 10 and 90 percent of the overall height of the catamaran.
  • an optional propulsion system comprised of rotatable propellers and bow thrusters is shown for one of the two hulls.
  • reference number 38 is a rotatable propeller connected to an engine (37), and reference numeral (39) is a thruster as is reference numeral 42.
  • At least three propulsion devices can be located in each hull as an option. The equipment for operating these devices can be contained in the fixed column (18) and (20) or located in the hulls.
  • FIG 3 provides additional detail that the fixed columns (18) can contain crew accommodations (92) and/or a bridge command center, such as a navigational bridge (74) for piloting and commanding the vessel.
  • the fixed column can contain catamaran operational equipment (93).
  • the fixed columns can also support a helipad or second deck (72) as shown in this Figure. It is contemplated as an option that each fixed column could support different structures. (74).Also notable in FIG 3 is the air gap (13) disposed between the two hulls.
  • FIG 4 shows a top view of the catamaran with the airgap (13) and the slot (15) as well as the support deck (12) in a position where the slot (15) is not covered by hatches.
  • the two fixed columns (20) and (18) are shown disposed on the hulls
  • Figure 4 shows the bow structure having the unique rounded triangular shape for each hull.
  • the edges are shown as reference numeral 200 for hull (8) and reference numeral (202) for hull (10).
  • FIG 5 shows the way in which the catamaran can be submerged to at least 3 different draft depths.
  • the first depth is shown as reference numeral (180)
  • the second depth is shown as reference numeral (182)
  • the third depth is shown at reference numeral (184). It is contemplated that the vessel can move at any of these depths.
  • Figure 6 shows one element of the vertical positioning system (24) which is installed in at least two of the moveable columns and used for securing the catamaran to an object at sea.
  • a first line (134) connects to an object at sea (1000). One end of this line (134) is secured substantially vertically to an object at sea (1000). The angle of attachment is usually not more than between 5 and 30 degrees from the vertical.
  • a second line (135) is used, as shown in FIG 7 and is also secured on one end, substantially vertically, no more than between 5 and 30 degrees from the vertical, to the same object at sea.
  • the object at sea (1000) is fitted into the opening slot (15) of the catamaran and secured with both lines.
  • FIG 7 shows the object at sea secured in the opening slot (15).
  • FIG 7 is a stern view of the catamaran wherein the hull (8) and the hull (10) can be seen, as well as two moveable columns (14) and (16) each containing a vertical positioning device with motion compensation system.
  • moveable column (14) contains the first vertical positioning device (24)
  • moveable column (16) contains the second vertical positioning device.
  • the vertical positioning system is a motion compensation system (138) disposed in the first load supporting moveable column (14).
  • the other end of first line (134) engages this motion compensation system.
  • an identical second motion compensation system is located and connected to the other end of the second line (135) (shown in FIG 7).
  • the first and second motion compensation systems each comprises the same elements, which are shown in detail in FIG 6.
  • the systems include a winch (77), the line (134 or 135) connected to the winch and vertically connectable to the object at sea (1000), a tension measuring device (79) connected to the line; a motion control device (80) connected to the line and winch for monitoring and controlling tension on the line.
  • Sheaves or rollers or wheels 104a and 104b can be used to assist in the tensioning of the line. These rollers are preferably mounted at the top of the moveable columns, and the tensioning devices are mounted at the bottom of the device.
  • the motion compensation systems also each comprise at least one pressurized cylinder (81) containing pressurized gas to control the system and assisting in the tensioning. Between 1 and 8 or more winches can be used in each motion compensation system.
  • FIG 8 shows the horizontal positioning system holding a spar or floating deep draft cassion vessel in the opening slot (15).
  • the horizontal positioning system preferably consists of at least three maneuvering lines (25, 26, and 28) although four are shown in FIG 8, with the fourth maneuvering line having reference numeral (33).
  • Each line is connected on one end to a maneuvering winch.
  • Line (26) connects to winch (29)
  • line (25) connects to winch (30) line (28) connected to winch (23).
  • the other end of each line connects to the object at sea (1000).
  • the fourth line (33) it would be connected to a maneuvering winch (31).
  • Each winch is disposed in a load supporting column. Winch (23) is in column (17), winch (29) is in column (19), winch (30) is in column (16) and optional winch (31) is in column (14).
  • a controller (130) for orienting the catamaran relative to the object at sea (1000) is electrically connected to the winches and the motion compensation systems.
  • the controller monitors the tension on the maneuvering lines and the controller initiates winch pay out of the maneuvering line when load on any one of the maneuvering lines exceeds a first preset limit.
  • the controller initiates the maneuvering winch tensioning of the maneuvering lines when tension or any one of the maneuvering lines falls below a second preset limit.
  • All winches are used to reduce the relative motion between the two bodies. When the bodies move away from each other, the winches go to a high preset tension. When the bodies move towards each other, the winches go to a low preset tension.
  • the vessel can include a propulsion system.
  • this vessel may be propulsion-less, and simply be towable and work within the scope of the invention for lifting, transport and maintenance of objects at sea.
  • FIG 9 shows one embodiment of a propulsion system usable on the vessel.
  • a mirror image for the port side of the vessel is contemplated for this propulsion system.
  • This starboard side has a first engine (37) in the first submersible float (8) driving a first rotatable propeller (38).
  • a second engine is the second hull for driving a second rotatable propeller also disposed on the stern of the second hull.
  • the propulsion system can optionally comprises a first bow thruster (42) disposed in the bow of the first hull (8) connected to the propulsion system, and a second bow thruster (44) disposed in the hull connected to the propulsion system.
  • the propulsion system further can comprises a first stern thruster (46) disposed in hull (10) connected to the propulsion system and a second stern thruster (48) can be disposed in the second hull (8).
  • These two thrusters can be used with the two rotatable propellers previously described.
  • two stern thrusters can be used in each hull.
  • Figure 7 shows the 4 stern thruster embodiment with the additional stern thrusters noted at 46a and 48a.
  • the catamaran can comprise a propulsion system consisting of a plurality of bow and stern thrusters.
  • the present invention is contemplated to include one or more load supporting hatches.
  • the support surface (12) can comprises at least one removable hatch.
  • the hatch can float.
  • FIG 1 shows removable hatch (21, 152, 154 and 156) disposed over the opening slot (15).
  • the removable hatch can be placed between the bows of the first and second hulls to prevent water from coming over the solid support surface (12).
  • FIG 10 shows the hatch 21 disposed across the bows of the vessel.
  • FIG 11 shows one of the lifting embodiments for the vessel, which can be used to lift a small structure from a jacket.
  • a hatch (21) is disposed over the two load support columns (16) and (14) for carrying a load (400) using the two winches and two motion compensation systems and the vertical compensation system previously described.
  • Other lifting devices can also be used, such as an A-frame, a gantry, or a crane.
  • the invention relates to a method for installing topsides to form an offshore platform, with the topside initially at a wharf and then at an intended installation at a location remote from the topside.
  • the method comprises a series of steps, which can include placing a topside on a transport wagon; rolling the transport wagon onto a barge and positioning the topsides on the barge wherein a portion of the topsides extends out over opposing sides of the barge.
  • topsides support structures can be placed on the barge.
  • the topsides are then lowered onto topside support structures enabling the wagon to be rolled from under the topsides and off of the barge.
  • the barge is then moved near to a submersible catamaran comprising a bow (4) and a stern (6) as shown in FIG 1.
  • FIG 22 shows some of the features of the method for lifting and transporting a topsides.
  • FIG 22 shows a topsides already placed on a barge.
  • the first step consists of: placing a topsides (301) on a barge (302).
  • the barge (302) is then maneuvered near the catamaran (2).
  • the catamaran has positioned the first and second moveable columns (14) and (16) at the stern of the vessel opposite the opening slot (15).
  • Two additional moveable columns, not viewable with this FIG, are disposed in front of the first and second columns, forming a four-column square or rectangle around the slot opening (15).
  • One or more removable hatches are taken off of a position covering the opening slot (15) thereby forming an unobstructed opening and placed on the solid support surface (12).
  • Each of the four corners of a hatch is connected to the vertical positioning system lines and winches disposed in each of the columns.
  • lines (134 and 136) are only viewable, but it is contemplated that all four lines are used.
  • the catamaran is then ballasted to a position below the water's surface (303).
  • the barge (302) is sailed into the opening over the hatch (21).
  • the first and second ballast systems are then used to raise the catamaran with respect to the waterline.
  • the base of the topsides is positioned over the tops of the four load supporting moveable columns (14,16,17,19).
  • the vertical positioning system used for this method is essentially a securing system for securing the catamaran to a topsides or other object, and it comprises:(i) tensioning lines; (ii) a winch; (iii) a motion compensation system disposed in each load supporting moveable column.
  • a control means is used to enable the securing systems to cooperatively tension the lines.
  • the catamaran is then raised further, enough to transfer load from the barge to the load supporting moveable columns.
  • the hatch (21) is then lowered with the securing system without the topsides.
  • the catamaran is then lowered permitting the barge to float freely.
  • the barge is then sailed away from the catamaran.
  • the catamaran then transports the topsides either at normal draft or in a semi-submersed state to minimize motions on the catamaran.
  • FIG 23 shows the catamaran transporting the topsides (301) while at a semi-submerged draft.
  • An alternative embodiment of this invention involves moving the topsides using a wagon onto the barge, keeping the topsides on the wagon, and removing the topsides from the wagon onto the catamaran.
  • the method can also comprise using an element between said topsides and the topsides supporting moveable columns to dampen movement between the topsides and the catamaran.
  • the element can be a rubber disc or elastomeric material.
  • subsea equipment such as subsea hoisting systems, moorings, suction piles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)

Claims (15)

  1. Procédé pour lever, abaisser et transporter un objet en mer (301 ; 1000), par exemple depuis une barge jusqu'à un site d'installation, dans lequel est utilisé un catamaran (2), comportant :
    • une première coque (8) et une seconde coque (10) placée dans une disposition parallèle espacée par rapport à ladite première coque (8), chaque coque ayant une proue (50 ; 52), une partie centrale (54 ; 56), une partie de poupe (58 ; 60) et une poupe (62 ; 64),
    • une surface de support (12) formant la partie supérieure desdites première et seconde coques, ladite surface de support étant adaptée pour supporter de lourdes charges et un espace d'air (13) étant présent entre lesdites première et seconde coques et ladite surface de support, et une ouverture formant fente (15) étant présente entre les parties de poupe desdites première et seconde coques,
    caractérisé par
    • une première colonne mobile de support de charge (14) disposée sur ladite surface de support, une deuxième colonne mobile de support de charge (16) également disposée sur ladite surface de support,
    • un premier système de ballastage (34) associé à ladite première coque, un second système de ballastage (35) associé à ladite seconde coque, lesdits premier et second systèmes de ballastage étant adaptés pour faire monter et descendre ledit catamaran par rapport à la ligne de flottaison,
    • un premier et un second systèmes de compensation de mouvement et d'arrimage (77 ; 134 ; 135 ; 79 ; 80 ; 138 ; 200) dans les première et deuxième colonnes de support de charge (14 ; 16) respectivement pour arrimer le catamaran à l'objet en mer, chaque système comportant :
    i) un dispositif tendeur (77),
    ii) une ligne de tension (134 ; 135) reliée au dispositif tendeur et à l'objet en mer,
    iii) un dispositif de mesure de tension (79) relié à ladite ligne de tension,
    iv) un dispositif de commande de mouvement (80) relié à ladite ligne de tension et au dispositif tendeur pour surveiller et commander la tension sur ladite ligne de tension.
  2. Procédé selon la revendication 1, comportant les étapes consistant à :
    a. placer l'objet, par exemple un accastillage (301), sur une barge (302),
    b. manoeuvrer la barge près du catamaran (2),
    c. immerger le catamaran en utilisant le système de ballastage,
    d. manoeuvrer la barge entre les première et deuxième colonnes de support de charge,
    e. amortir le mouvement relatif entre la barge et le catamaran en utilisant le système de compensation de mouvement et d'arrimage,
    f. lever suffisamment le catamaran pour transférer la charge de l'objet de la barge aux colonnes de support de charge,
    g. faire flotter la barge pour l'éloigner du catamaran.
  3. Procédé selon la revendication 1 ou 2, comportant les étapes consistant à :
    a. placer l'accastillage sur un wagon,
    b. conduire l'accastillage sur une barge,
    c. manoeuvrer la barge jusqu'à une position près d'un catamaran,
    d. immerger le catamaran,
    e. manoeuvrer la barge au-dessus du catamaran et entre les première et deuxième colonnes de support de charge,
    f. lever suffisamment le catamaran pour transférer la charge de la barge aux colonnes de support de charge,
    g. retirer la barge.
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel, une fois que le catamaran s'est déplacé jusqu'à un site d'installation, le procédé comporte les étapes supplémentaires consistant à :
    a. positionner le catamaran au-dessus du site d'installation,
    b. ballaster le catamaran pour transférer l'accastillage sur le site d'installation, et
    c. éloigner le catamaran du site d'installation en utilisant un tirant d'eau qui est plus profond qu'un tirant d'eau normal pour le bâtiment.
  5. Procédé selon l'une quelconque des revendications précédentes, dans lequel, une fois que le catamaran s'est déplacé jusqu'à un site d'installation, le procédé comporte les étapes supplémentaires consistant à :
    a. positionner le catamaran au-dessus du site d'installation,
    b. amortir le mouvement relatif en utilisant le système de compensation de mouvement et d'arrimage, et ballaster le catamaran pour abaisser l'accastillage au-dessus du site d'installation,
    c. transférer la charge au site d'installation à partir des colonnes de support de charge, et
    d. éloigner le catamaran du site d'installation en utilisant un tirant d'eau qui est plus profond qu'un tirant d'eau normal pour le bâtiment.
  6. Procédé selon l'une quelconque des revendications précédentes, dans lequel est utilisé un catamaran (2) :
    • où la surface de support comporte au moins deux écoutilles flottantes, lesdites écoutilles étant adaptées pour supporter de lourdes charges,
    • comportant également une première et une deuxième colonnes mobiles de support de charge, et chaque colonne de support de charge ayant un système de treuillage disposé sur ladite première coque, une troisième et une quatrième colonnes mobiles de support de charge et chaque colonne de support de charge ayant un système de treuillage disposé sur ladite seconde coque,
    • comportant également un système de positionnement horizontal comportant :
    - au moins trois treuils de manoeuvre horizontale,
    - au moins trois lignes reliées chacune à une extrémité à un treuil et à l'autre extrémité à un objet en mer,
    - un dispositif de commande pour orienter le catamaran par rapport audit objet en mer, ledit dispositif de commande surveillant la tension sur lesdites au moins trois lignes et déclenchant un déroulement de treuil des lignes lorsque la charge sur l'une quelconque desdites lignes dépasse une première valeur préétablie, et ledit dispositif de commande déclenchant également une mise sous tension du treuil d'une ligne lorsque la tension sur l'une quelconque desdites lignes chute au-dessous d'une seconde limite préétablie.
  7. Procédé selon la revendication 6, pour installer un accastillage pour former une plate-forme en mer, l'accastillage étant initialement sur un quai et un site d'installation prévu à un endroit initialement éloigné de l'accastillage, le procédé comportant les étapes consistant à :
    a. placer un accastillage sur un wagon de transport,
    b. faire rouler le wagon de transport sur une barge et positionner l'accastillage sur la barge, une partie de l'accastillage s'étendant à l'extérieur au-dessus de côtés opposés de la barge,
    c. déplacer la barge jusqu'à un catamaran,
    d. utiliser l'une desdites deux écoutilles flottantes pour former une première base entre lesdites première et troisième colonnes mobiles de support de charge, et utiliser l'autre desdites deux écoutilles flottantes pour former une seconde base entre lesdites deuxième et troisième colonnes de support de charge, relier ladite première base aux systèmes de treuillage de ladite première colonne de support de charge et de ladite troisième colonne de support de charge, et relier ladite seconde base aux systèmes de treuillage de ladite deuxième colonne de support de charge et de ladite quatrième colonne de support de charge,
    e. faire descendre le catamaran au-dessous de la ligne de flottaison,
    f. manoeuvrer la barge au-dessus des première et seconde bases,
    g. faire monter lesdites première et seconde bases en utilisant lesdits systèmes de treuillage en levant la barge pour synchroniser les mouvements de barge avec le catamaran,
    h. supprimer partiellement le ballastage du catamaran en le faisant monter jusqu'à ce que l'accastillage sur le wagon de transport touche la partie supérieure des première, deuxième, troisième et quatrième colonnes de support de charge,
    i. transférer la charge de l'accastillage de la barge au catamaran,
    j. abaisser les première et seconde bases en abaissant ainsi la barge,
    k. retirer la barge d'une position au-dessus du catamaran,
    l. déplacer le catamaran jusqu'à un site d'installation prévu,
    m. manoeuvrer le catamaran jusqu'à ce que ce site d'installation prévu soit contenu à l'intérieur de l'ouverture formant fente,
    n. ballaster et abaisser le catamaran dans l'eau, jusqu'à ce que l'accastillage touche des supports du site d'installation prévu,
    o. transférer la charge du catamaran au site d'installation prévu.
  8. Procédé selon la revendication 7, comportant également l'étape consistant à utiliser le système de compensation de mouvement et d'arrimage pour arrimer le catamaran au site d'installation prévu avant de supprimer le ballastage et d'abaisser le catamaran avec l'accastillage.
  9. Système selon l'une quelconque des revendications précédentes, comportant également l'étape consistant à utiliser un élément entre ledit accastillage et lesdites colonnes de support de charge pour amortir un mouvement entre l'accastillage et le catamaran, par exemple un disque en caoutchouc ou un élément constitué d'un matériau élastomère.
  10. Procédé selon l'une quelconque des revendications précédentes, comportant également l'étape consistant à utiliser entre 4 et 16 lignes de tension reliées au système de compensation de mouvement et d'arrimage pour synchroniser les mouvements du catamaran et de la barge ou du site d'installation lors du levage de l'accastillage depuis une barge ou lors de l'abaissement de l'accastillage sur le site d'installation.
  11. Procédé selon l'une quelconque des revendications précédentes, dans lequel un site d'installation prévu est une plate-forme flottante.
  12. Procédé selon l'une quelconque des revendications précédentes, dans lequel un site d'installation prévu est une plate-forme à montants fixes.
  13. Procédé selon l'une quelconque des revendications précédentes, dans lequel ledit catamaran est utilisé à une profondeur sélectionnée parmi le groupe : un tirant d'eau normal, un tirant d'eau légèrement immergé, dans lequel l'eau remplit l'espace d'air entre les première et seconde coques et la surface de support est au-dessus du niveau d'eau, et un tirant d'eau inférieur, dans lequel entre 1 et 20 mètres d'eau recouvrent la surface de support.
  14. Procédé selon l'une quelconque des revendications précédentes, dans lequel l'accastillage s'étend au-delà des coques du catamaran.
  15. Procédé selon l'une quelconque des revendications précédentes, dans lequel le catamaran est utilisé dans-un état semi-immergé pour transporter l'accastillage et pour minimiser des mouvements sur le catamaran.
EP03721147A 2002-04-10 2003-04-10 Navire submersible Expired - Lifetime EP1492699B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US37137202P 2002-04-10 2002-04-10
US37132602P 2002-04-10 2002-04-10
US37155802P 2002-04-10 2002-04-10
US371372P 2002-04-10
US371326P 2002-04-10
US371558P 2002-04-10
PCT/NL2003/000274 WO2003086852A1 (fr) 2002-04-10 2003-04-10 Navire submersible

Publications (2)

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EP1492699A1 EP1492699A1 (fr) 2005-01-05
EP1492699B1 true EP1492699B1 (fr) 2007-08-01

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EP (1) EP1492699B1 (fr)
AT (1) ATE368611T1 (fr)
AU (1) AU2003224498A1 (fr)
DE (1) DE60315276D1 (fr)
NO (1) NO330075B1 (fr)
WO (1) WO2003086852A1 (fr)

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NL1031263C2 (nl) * 2006-03-01 2007-09-04 Univ Delft Tech Vaartuig, bewegingsplatform, werkwijze voor het compenseren voor bewegingen van een vaartuig en gebruik van een Stewart platform.
DE102010019492A1 (de) * 2010-04-29 2011-11-03 Areva Energietechnik Gmbh Verfahren zum Bereitstellen einer Hebevorrichtung auf einer Plattform
NL2005054C2 (en) * 2010-07-08 2012-01-10 Dockwise Shipping B V Self-propelled submersible transport vessel.
US9061749B2 (en) 2012-04-28 2015-06-23 Dockwise Shipping B.V. Method for dry-docking a floating unit
CN107150765A (zh) * 2016-03-03 2017-09-12 天津市海王星海上工程技术股份有限公司 一种吊挂式潜水驳及其使用方法
DK181087B1 (en) * 2021-03-30 2022-12-07 Maersk Supply Service As A semi-submersible service vessel for a floating installation and method therefor

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US1757174A (en) 1929-03-15 1930-05-06 Homer C Douglas Vessel
DE2356537A1 (de) 1973-11-13 1975-05-15 Laukien Guenther Schiff zur unterwasserbeobachtung
NL8103108A (nl) * 1981-06-26 1983-01-17 Wijsmuller Bv Transportschip.
IN160785B (fr) * 1983-08-10 1987-08-01 Mcdermott Int Inc
NL8500920A (nl) * 1985-03-28 1986-10-16 Wijsmuller Eng Gedeeltelijk afzinkbaar transportvaartuig.
NL8700076A (nl) * 1987-01-14 1988-08-01 Allseas Eng Bv Werkwijze voor het manoeuvreren van een opbouwelement ten opzichte van een in water aangebrachte vaste constructie, werkwijze voor het bouwen van een bouwwerk en bouwwerk gebouwd volgens een dergelijke werkwijze.
NL1001778C2 (nl) * 1995-11-03 1997-05-13 Allseas Group Sa Werkwijze en inrichting voor het verwijderen van een opbouw.
DE29823737U1 (de) * 1998-12-23 1999-09-30 Siemens Ag Halbeintauchbarer Schwergutfrachter
WO2001064507A1 (fr) * 2000-03-02 2001-09-07 Workships Contractors B.V. Catamaran de levage de submersible lourd
NL1014786C2 (nl) * 2000-03-29 2001-10-02 Excalibur Engineering B V Inrichting voor het heffen van een zeegaande constructie zoals een boorplatform, voorzien van parallel aan elkaar verlopende heforganen.
NL1019716C2 (nl) * 2002-01-09 2003-07-11 Itrec Bv Multifunctioneel vaartuig (Catamaran).

Also Published As

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ATE368611T1 (de) 2007-08-15
AU2003224498A1 (en) 2003-10-27
NO20043671L (no) 2005-01-10
DE60315276D1 (de) 2007-09-13
WO2003086852A1 (fr) 2003-10-23
EP1492699A1 (fr) 2005-01-05
NO330075B1 (no) 2011-02-14

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