EP1568600B1 - Vorrichtung und Verfahren zum Befestigen einer Basiskonstruktion auf einer Wandfläche am Meeresgrund - Google Patents

Vorrichtung und Verfahren zum Befestigen einer Basiskonstruktion auf einer Wandfläche am Meeresgrund Download PDF

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Publication number
EP1568600B1
EP1568600B1 EP04358002A EP04358002A EP1568600B1 EP 1568600 B1 EP1568600 B1 EP 1568600B1 EP 04358002 A EP04358002 A EP 04358002A EP 04358002 A EP04358002 A EP 04358002A EP 1568600 B1 EP1568600 B1 EP 1568600B1
Authority
EP
European Patent Office
Prior art keywords
wall
base
bolts
orifice
orifices
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
EP04358002A
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English (en)
French (fr)
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EP1568600A1 (de
Inventor
Michel Baylot
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Saipem SA
Original Assignee
Saipem SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to EP04358002A priority Critical patent/EP1568600B1/de
Application filed by Saipem SA filed Critical Saipem SA
Priority to DE602004030314T priority patent/DE602004030314D1/de
Priority to AT04358002T priority patent/ATE490166T1/de
Priority to DE602004004382T priority patent/DE602004004382D1/de
Priority to PCT/FR2004/000742 priority patent/WO2004087495A2/fr
Priority to EP04742350A priority patent/EP1606160B1/de
Priority to US10/550,263 priority patent/US20070089656A1/en
Priority to ES04742350T priority patent/ES2280032T3/es
Publication of EP1568600A1 publication Critical patent/EP1568600A1/de
Application granted granted Critical
Publication of EP1568600B1 publication Critical patent/EP1568600B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
    • 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
    • B63B27/08—Arrangement of ship-based loading or unloading equipment for cargo or passengers of winches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
    • B63C7/006—Emptying the contents of sunken, stranded, or disabled vessels, e.g. by engaging the vessel; Underwater collecting of buoyant contents, such as liquid, particulate or gaseous contents, escaping from sunken vessels, e.g. using funnels, or tents for recovery of escaping hydrocarbons
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/0122—Collecting oil or the like from a submerged leakage
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/12—Underwater drilling
    • E21B7/124—Underwater drilling with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B2015/005—Tent-like structures for dealing with pollutant emissions below the water surface

Definitions

  • the present invention relates to a device and a method for installing and anchoring a base on a wall at the bottom of the sea.
  • It may be, in particular, a wall, a ship stranded or a tank of a ship stranded on which one wishes to intervene.
  • said base can be part of any module carrying various functions such as lifting means, connecting means or assembly means for performing different operations at said wall after anchoring thereof on the wall.
  • Said base may, more particularly, be used for anchoring any device, in particular a shuttle tank for collecting a fluid from a tank on the wall of which said base is anchored as will be explained below.
  • the present invention also relates to a device and a method for installing and anchoring a base on a wall at the bottom of the sea and, if necessary, piercing said wall, in particular to recover, pass a fluid through the orifice thus created on said wall.
  • This latter type of device and process is particularly useful when it is desired to implement a process and an installation for the recovery of effluents at sea and more particularly of polluting effluents contained in a cast and damaged ship resting at the bottom of the sea. sea.
  • the ship When the tankers sank, the ship usually sank after being seriously damaged and after losing part of its cargo.
  • the depth of water is important, for example 100 or 200 meters, the recovery of the wreck or its bailout, is not generally considered, but the hull must be completely emptied and rinsed, so that the corrosion of the structure over time, creating localized holes or widespread, does not lead to the release of the contents of the ship, creating pollution that can last for years, even decades.
  • said receptacle consists of a bell whose open base constitutes said lower orifice and covers a leakage zone of said effluents, said zone comprising one or more said openings in the hull and / or vessel of said vessel, and the anchoring means of said receptacle on the vessel comprising cables connecting attachment points fixed on the periphery of said receptacle base and attachment points on the vessel.
  • said receptacle consists of a substantially tubular rigid container, which is held in a vertical position by means of floats installed at least at the upper end or at each upper and lower end of said container, said upper and lower ports of said container being closable so that said receptacle can be raised to the surface and installed in a floating horizontal position when said orifices are closed, said receptacle can then be towed to an installation or a storage vessel of said effluents.
  • shuttle tanks have been described in the European patent applications EP 03 358 003.6 and EP 03 358 019.2 .
  • the shuttle tank is anchored directly on the wall of the tank.
  • the shuttle tank To connect the shuttle tank to the wreck, it is possible to use existing orifices intended for example to take samples of cargo, or to use the manholes used for access to the tanks of the personnel of the ship. maintenance or inspection. But in fact, the wreck is usually broken and only exceptionally in position horizontal on the bottom of the sea. It often lies on the side or upside down and it is then impossible to simply recover the cargo, and it is necessary to make holes in the shell that then allow to install and to anchor a base on the wall to facilitate the sampling operations by ensuring optimal recovery of the highly polluting cargo or allowing direct sampling at the location of said piercings.
  • hot-taps Multiple techniques have been developed in the context of pressurized pipes to make load taps, called "hot-taps". In such operations, a pressure pipe is pierced in a confined pressure-resistant environment, so that the pressurized fluid is not likely to escape during the entire operation.
  • fixing a module on the wall is made by drilling the wall with a tool having on its leading face a conventional drill that pierces the wall, followed by a tapping tool that creates a thread in the hole drilled in the wall, the tapping tool itself being followed by a threaded portion at the same pitch adapted to cooperate with the thread of the wall orifice, the latter acting as a nut.
  • This device is effective for fasteners requiring only a low tensile strength and therefore low holding force and can be effective only if the wall traversed is of good quality and of sufficient thickness to create a thread, which is often not the case of wrecks, whose sinking is often due to a large age or a lack of maintenance.
  • the means for piercing the wall and anchoring it on the wall, for fixing said second module consist of a similar system of drill / tap as described in US 3,831,387 giving a limited holding force, especially in the case of wreckage in poor condition.
  • An object of the present invention is to provide device and method for drilling and fixing a base on a wall at the bottom of the sea which are more mechanically reliable and simpler to perform and implement, particularly at great depth, and in particular in more severe conditions of use requiring a strong resistance to mechanical traction that can undergo said base anchored on said wall of a wreck in very poor maintenance condition.
  • the diameter of the drilling of the hull for evacuating said cargo is small diameter, for example 100mm to 300mm, and the transfer lines to the surface of a similar diameter, coupled to pumping means, are then generally sufficient.
  • the stitching device must have a very large diameter of passage and the piercing machine of the shell must be able to drill a hole corresponding to said diameter of passage, that is to say 700 to 800mm or more. It must therefore be extremely powerful and be firmly attached to the hull to stay in place without moving or vibrate during the entire drilling phase.
  • the latter when filling the shuttle, the latter is positioned vertically from the opening of the shell, and is advantageously fixed by a cable to said stitching device, which represents a significant traction.
  • the shuttle when the shuttle is full, because of the density difference between seawater and crude oil, it exerts a vertical thrust that can reach 20 to 30 tons for a 300m 3 shuttle; this vertical thrust generates an upward vertical pull in said cable connected to said stitching device, as well as in the fastening means of said stitching device on the hull of the wreck.
  • Another object of the present invention is to provide a fluid recovery system from the seabed without using pumping means. More particularly, an object of the present invention is to provide a method and an installation for recovering the contents of the bunkers of a ship, for example a tanker, resting on the seabed, in significant water depths, especially higher at 3000 meters, or even up to 4000 to 5000 meters, and which do not have the disadvantages of the prior methods and devices and, in particular, which are more technically reliable, easier and easier to implement.
  • longitudinal sliding means a displacement in the longitudinal direction, which can be doubled by a rotation relative to the longitudinal axis.
  • Said base may be a platform with flat bearing surface suitable for being placed on a flat wall.
  • said base may also comprise lower spacers preferably at or near said first orifices on the underside of the base so as to allow it to be laid on a surface, in particular on a deformed wall surface, therefore not necessarily flat.
  • Buoyancy elements may be incorporated in the device for installing and anchoring a base according to the invention to control its buoyancy, especially during its descent to the seabed from the surface, to make it in equilibrium hydrostatic, but also at the time of approach and installation of the device according to the invention against the wall to be pierced.
  • This approach and this pose can be carried out with the aid of an outside operator and, in particular, by means of a submarine vehicle controlled remotely, in particular from the surface, of the ROV ("Remotely Operated Vehicle") type. ), in particular if there is reason to incline the device according to the invention for its anchoring on a strongly inclined wall, or on a vertical wall.
  • the device is to be installed on an upper wall of an underwater object, in particular on a tank or on a vessel at the bottom of the sea, said upper wall being substantially horizontal, the device installation and anchoring, a base according to the invention, can be placed directly without the aid of outside operator.
  • said wall can be inclined as far as it is possible to lay said base sufficiently stable to allow its anchoring.
  • the sliding in the opposite direction of the bolts means that the bolts partially withdraw from the inside of said wall towards the outside thereof, that is to say if necessary go up.
  • the diameter of said first orifices of the base is slightly greater than that of the bolts
  • the reversible connection means between the base and the upper structure may be hooks released by a remote-controlled underwater vehicle, especially from the surface (ROV), or by hydraulic cylinders or mechanical operated by said ROV.
  • ROV remote-controlled underwater vehicle
  • a major advantage of the anchoring system according to the invention is to avoid the creation of a thread in said second orifices of the wall whose mechanical performance is not known which can be particularly affected by the corosion.
  • Said bolts can be rotated directly by a motor or preferably by means of a device itself actuated in rotation such as driving guns.
  • the sliding contact between the lower end of the barrels and the upper face of said nuts can be done through a ball bearing seal or equivalent.
  • the diameter of the lower cylindrical end of said bolts may have a diameter dimensioned at will and therefore the diameter of said segments in extension is such that their mechanical retention by the inner face of the wall is able to withstand a significant tension of several tens of tons, exerted upwards on said base after anchoring it on the wall.
  • the diameter of said second orifices is from 30 to 125 mm, more particularly from 35 to 75 mm, corresponding to said first orifices of 40 to 150 mm, more particularly of 45 to 90 mm.
  • said base can be used to adapt any device extraction. More particularly, said base can itself be used for anchoring any device including a shuttle reservoir for collecting a fluid from a tank on the wall of which said base is anchored.
  • said base comprises a first large cylindrical central orifice with axis in said longitudinal direction ZZ ', in particular a first large orifice of less than 300 mm, more particularly from 300 to 1500 mm, more particularly from 500 to 800 mm.
  • the base may include 4 said first holes defining the 4 corners of a rectangle, within which, preferably at the center of which will be disposed said large orifice.
  • a base 2 consisting of a flat platform anchored to the upper wall 1b of a vessel 53 containing a thick fluid consisting of a polluting effluent 51, said vessel resting at the bottom of the sea 52.
  • a shuttle tank 30 is anchored on the base 2 to recover said escaping fluid and be raised to the surface 500 as described in more detail below.
  • Said base comprises a large central orifice 13 cylindrical allowing the evacuation of said thick fluid back through said large orifice 13 by its lighter density than seawater.
  • a device for installing and anchoring said base adapted to drill a large central orifice 26 in said wall, so as to allow the discharge of said thick fluid 51 from the tank 53 through said orifice.
  • Said base comprises hooks 3 operable by an external operator such as an ROV 50 to separate it from the upper structure 3 after inking the base 2 on the wall 1b.
  • the upper structure 4 consists of a parallelepiped welded frame comprising longitudinal guide rails 4a along which four carriages 4b can slide respectively along which can slide 4b in a longitudinal direction ZZ '.
  • the welded frame 4 supports within it a main drilling body 17 fixed with respect to said frame and supporting at its base second cutting means 14, consisting of a hole saw or bit capable of producing circular perforations of a diameter of at least 300 mm, more particularly from 300 to 1500 mm, more particularly from 500 to 800 mm, corresponding to said second large central orifice in the wall 1b.
  • Said main body 17 encloses a rotation actuating motor 17a (not visible) and a jack 16 allowing longitudinal sliding in the direction ZZ 'relative of said second cutting means 14 with respect to said main body 17.
  • the side carriages 4b support four anchor bolts 5 whose structure and operation are explained below.
  • the carriages 4b are actuated in longitudinal sliding direction ZZ 'along the rails 4a by cylinders 7 fixedly mounted on said rails 4a.
  • Anchor bolts consist of threaded cylindrical rods.
  • the carriages 4b support driving guns 6 adapted to be actuated in rotation by motors 8b, also supported by said carriages 4b.
  • the guns 6 comprise cylindrical hollow housings of longitudinal axis in the direction ZZ 'in which are housed the upper parts of the anchor bolts 5.
  • Said anchor bolts 5 are rotated by rotation of said guns 6 by means of elements complementary guide 5a, consisting on the one hand of longitudinal keys connected to the surface of the upper part of the bolts 5, which cooperate with longitudinal grooves on the inner surface of said guns in said hollow housing on the inner surface of said guns 6.
  • Said base 2 comprises, in fact, first orifices 11, of diameter slightly greater than said anchor bolts 5 and thus able to be traversed by said anchor bolts when they are in longitudinal sliding ZZ ', it being understood that in the initial position of rest before anchoring, when said base and said upper structure are secured, said first cutting means 9 and said first locking means 7, 10a, 10b, 10c are housed inside said first cylindrical orifices 11 of said base.
  • Each said anchor bolt 5 comprises a threaded zone, adapted to cooperate with a nut 7 located below said attached guide elements 5a.
  • the direction of the threading is such that, when said cannons and bolts are in rotation and slide in the longitudinal direction downwards, that is to say toward said wall, to carry out the drilling of said wall then anchoring the base on said wall, said nut is positioned so that it abuts against the upper face of said base, after said second orifice 12 has been pierced in said wall, said first means of circular section 9 and after said automatic retaining means 10a, 10b, 10c are activated.
  • said first automatic locking means comprise said nut 7 as well as said first automatic retaining means 10a, 10b, 10c, which cooperate in the following manner.
  • Said first automatic retaining means 10a, 10b, 10c are integrated in said anchor bolts 5 and located above said first cutting means 9.
  • Said first automatic retaining means are constituted by segments 10a in the form of rings. open members adapted to be resiliently inserted by virtue of their elasticity in grooves 10c at the lower end of said bolts 5 above said first cutting means 9.
  • Said segments 10a are held in said grooves 10c by peripheral rings 10b sliding with reduced clearance on the outer surface of the bolts at said segments 10a.
  • Said peripheral rings due to their greater diameter than that of said second orifices, are retained by the upper face of the wall 1b after drilling of said second orifices, and are thus able to release said segments 10a in elastic radial extension partially out of said grooves 10c.
  • said segments 10a in partial radial extension prevent their passage in the opposite direction through the wall and thus allow the wall to be clamped by the bolts between said nut and said segment 10a in extension by rotation and sliding in the opposite direction of said bolts, as it will be explained below.
  • said nuts 7 abut on said base and lock firmly against it, the actuation in rotation of said barrels and thus said bolts being maintained, then causes a screwing bolt, so a longitudinal sliding in the opposite direction of said bolts inwardly of said barrel, i.e. from the inside of the wall to the outside, insofar as said nut is prevented from rotation by the fact that the lower end of said 6 is in sliding contact via a bronze ring 7a with the upper face of said nut 7.
  • Said base comprises a first large central orifice 13 of axis in the longitudinal direction ZZ ', said large central cylindrical orifice 13 of said base comprises an upper peripheral flange 19 which cooperates with a lower flange 18 at the base of said main body 17 supporting said second circular cutting means 14 bit-type or bell-saw, for cutting a said second large central orifice 26 in the wall 1b by sliding longitudinally through said first large cylindrical central orifice 13 of said base.
  • the reversible connecting hooks 3 maintain said upper flanges 19 of the base and lower 18 of said upper structure, one against the other, said second cutting means 14 is slidable longitudinally in said direction ZZ '.
  • the wall, and shims 21 are installed around said first orifices 11 on the underside of the base adapted to allow the stable installation of the base on the wall in the case where it would be deformed if necessary.
  • said anchor bolt 5 slides longitudinally along the axis ZZ ', with hard friction, so that it remains in place and does not escape downwards by its own weight.
  • the anchor bolt is constituted by a cylindrical rod of substantially constant diameter, the upper portion of which is inserted with hard friction into the driving barrel.
  • the key 5a makes it possible to drive said anchor bolt in rotation while permitting sliding along the axis ZZ 'when a large traction force is exerted downwards on said anchor bolt.
  • the cylindrical rod is threaded with a step to the left and collaborates with the nut 7 initially in contact with the lower end of the drive barrel.
  • the lower end of the anchor bolt 5 is equipped with a 65mm diameter hole saw which will pierce said second ports of the wreck's hull.
  • said cylindrical rod has a peripheral groove 10c detailed on the figure 5b .
  • This groove 10c receives an open ring 10a shown on the Figures 5a and 5c , whose outside diameter at rest ( figure 5c ) is 80 mm, thus greater than the diameter of the hole, which corresponds substantially to the diameter of the hole saw which is 65 mm.
  • said open ring 10a is picked up on itself ( figure 5a ) so that its outer diameter corresponds substantially to that of said cylindrical rod, that is to say 65 mm.
  • a sliding ring 10b with reduced clearance maintains said ring 10a in a picked configuration, as explained on the figure 5b .
  • the anchor bolt has up to said sliding retaining ring, a substantially constant diameter of 65 mm.
  • the ring 10a in the picked up position is engaged in the hole drilled to the diameter 65 mm and the tool continues its progression towards the inside of the shell. Then, when the ring 10a in the picked up position opens completely inside the shell, it is naturally released thanks to its elasticity and resumes its initial diameter of 80 mm, as illustrated in FIGS. Figures 4b and 4c, 5b and 5c .
  • the tool 9 continues to descend and turn until the driving barrel 6 comes to force on the nut 7 when it abuts on the outside of the shell as shown in the illustration. figure 4b .
  • Said nut 7 has on its underside a rough surface, for example a knurling or a reported washer and glued, friction material similar to the brake pads, and on its upper face, in contact with the drive barrel, a ring reported 7a facilitating sliding, for example a bronze ring. So during the whole phase initial drilling, the thrust of the drill 9 is transmitted to the anchor bolt 5 through said nut 7, the torque being transmitted by the key 5a; said nut rotates at the same time as the anchor bolt: it therefore remains fixed with respect to the anchor bolt.
  • the base 2 comprises a closing means 15 or integrated isolation valve of the guillotine type, with horizontal translation, operable from the outside.
  • Said guillotine is operated horizontally by an external actuator 15a, integral with a threaded rod 15b cooperating with an integral nut 15c of said guillotine, as shown in FIG. figure 3 .
  • the actuator 15a may be a hydraulic or electric motor, but a ROV 50 hydraulic tool is advantageously used to actuate the opening or closing of the valve 15 as shown in FIG. figure 6b .
  • the guillotine valve 15 is shown completely open on the figures 2 and 6a , while it is represented during closing on the plan view of figures 3 and 6b and completely closed on the Figure 6c .
  • Said seal has a thickness such that after compression during the anchoring of the base on the wall, its thickness corresponds to that of said shims.
  • the seal 20 shown as having the same thickness as the wedges 21 may, in fact, at rest have a double or triple thickness.
  • the longitudinal sliding of said second cutting means 14 is ensured by a jack 16 with a rod issuing from said main body 17 allowing a visual check of the positioning of said second cutting means 14 with respect to said wall 1b, in particular during the cutting of the wall, said control being performed by the ROV camera.
  • Said second cutting means 14 is adapted to cooperate with a retaining means 22 of the wall washer 1c 1b cut after cutting thereof. This advantageously makes it possible to prevent the washer from remaining on the surface of a thick fluid that one would like to evacuate through said large orifice of the wall by obstructing it, as represented on the Figures 7a, 7b and 7c .
  • Said second retaining means 22 comprises a third circular cutting means 23 adapted to cooperate with said second cutting means 14 and piercing a third hole of smaller diameter than said second large central opening 26 in the wall portion to be cut by said second cutting means 14, before said second cutting means 14 has cut said large orifice.
  • Said second retaining means 22 of the washer is a second automatic locking means constituted by the combination of a second elastic open annular segment 24 inserted in force and held in a peripheral groove, by a third ring 25 covering it, at the lower end of a cylindrical rod supporting said third cutting means.
  • the diameter of said third ring 25 is greater than that of said third small hole of the wall so that, after cutting said third orifice and after passing through the wall by said cylindrical rod supporting said third cutting means, said second segment 24 is released in radial radial extension partially out of its groove while remaining therein, which allows to retain and reassemble said washer when said second cutting means 14 is retracted inside said main body 17.
  • Figures 7a, 7b and 7c illustrate a preferred version of a second bell-saw type cutting means 14 to which is attached a second cylindrical driving gun 14 1 having a cylindrical hole 14 2 within which is installed a said second cylindrical retaining means 22 provided with a drive key 22a, and retained by a shear pin 22b.
  • the lower part of said second cylindrical retaining means 22 is equipped with a third circular sawing device of the bell-saw type 23, of 65 mm, of an open ring 24 located in a groove of said second cylindrical retaining means 22, and of a second sliding ring 25, as described above with regard to Figures 4a, 4b and 4c .
  • the ring 24 resumes its natural diameter of 80 mm after having crossed the wall.
  • the main bell saw 14 then attacks the wall 1b and passes through it completely.
  • the washer 1c When the drilling is completed, the washer 1c remains trapped in the retaining ring 24. When removing the hole saw 14 within the main body 17, the washer 1c is thus recovered.
  • Said shuttle reservoir 30 comprises a flexible or rigid main envelope 30a with a cylindrical peripheral wall surmounted by a rigid dome 30b having a profile in the form of a shell in vertical section, said dome preferably containing buoyancy elements 30c such as foam syntactical control to control its rise to the surface under the simple action of buoyancy, preferably shifting the center of buoyancy of said shuttle tank filled with fluid upwards relative to its apparent center of gravity in the water.
  • buoyancy elements 30c such as foam syntactical control to control its rise to the surface under the simple action of buoyancy, preferably shifting the center of buoyancy of said shuttle tank filled with fluid upwards relative to its apparent center of gravity in the water.
  • the speed of descent of a said device 1a for laying and anchoring the base 2 or a said shuttle reservoir 30, if applicable, or for ascending a said upper structure 4 or the said shuttle tank 30 is also controlled.
  • a stabilizing device comprising at least one cable or linkage chain 40 extending from the surface, preferably from a surface vessel, to said upper structure 4 or said shuttle reservoir 30, the where appropriate, at which its end is connected, said cable or said connecting chain 40a, 40b having a lower portion weighted, preferably by blocks 41 arranged in a string along said cable or by larger links heavier said chain, such that the weight of the length of said lower portion of said cable or chain hanging below its point of connection 43 to said upper structure 4 or below its point of connection 55 to said shuttle reservoir 30 can be adjusted from the surface, preferably by means of a winch on board a surface vessel and on which the upper end of said cable or chain is unwound or rolled up, so as to control the descent rate or respectively of said upper structure 4
  • Said blocks 41 of said cable or large heavy links of said link chain, in said lower portion of said second cable or chain have a shape such that when said cable or said string is bent, two adjacent blocks or two links adjacent heavies abut against each other thus limiting the local radius of curvature of said cable or said chain.
  • FIG. 10 there is shown an alternative embodiment of the anchor bolts with respect to the embodiment of the Figures 4a, 4b and 4c in which the cylinders 8a, 8b engines and drive guns 6 are fixed relative to the frame 4, and the longitudinal sliding of the anchor bolts is by relative longitudinal sliding of the anchor bolt relative to the drive barrel. rotation 6.
  • the shuttle reservoir 30 is kept close to the base 2 by means of anchoring means comprising at least one crowbar anchoring cable connected to a first attachment point 54 fixed on the lower part of said reservoir and at least one second anchor point 55 on said base 2.
  • an automatic disconnection step is performed for said anchor means preferably performs automatically when the shuttle tank has reached a predetermined filling level, especially when the tank is full or almost full.
  • At least one said anchoring cable 54 cooperates with a first automatic disconnection device on which is exerted a traction corresponding to the buoyancy pressure exerted on said shuttle tank and its cargo, traction transmitted by said anchoring cable, said disconnecting device having the effect of causing disconnection of said anchoring cable by de-securing said anchoring cable 54 from said base 2 or by breaking said anchor cable, and allowing the at least partial rise of said shuttle reservoir when this traction reaches a first determined threshold value, preferably when said shuttle tank is filled with effluents.
  • the operator at the surface is thus informed, via a camera embedded in the ROV, of the end of the filling, and the ROV can release the cable 54, which makes it possible to raise the tank to the surface by perfectly controlling said ascent thanks to the 40-41 chain system.
  • the said retaining means have been described as being composed of an elastic segment 10a in the picked up position, held by a ring 10b, but it is in the spirit of the invention to consider cleats, cylinders or balls which can move radially in orifices or grooves and urged outwards by springs, said cleats, cylinders or balls being held in the picked up position by the sliding ring with reduced clearance 10b and released by the force of said springs to create the stop on the inner face of the wall during removal of the bolt outwardly of said wall.

Claims (16)

  1. Vorrichtung zum Anbringen und Verankern (1a) eines Sockels (2), der dazu bestimmt ist, an einer Wand (1b) auf dem Meeresgrund verankert zu werden, umfassend eine obere Tragstruktur (4), unter welcher der Sockel (2) fest verbunden ist, wobei der Sockel erste zylindrische Öffnungen (11) aufweist, dadurch gekennzeichnet, daß
    - die obere Struktur (4) Verankerungsbolzen (5) trägt, die geeignet sind, durch die ersten Öffnungen (11) des Sockels (2) hindurch verschiebend und drehend angetrieben zu werden,
    - wobei die Bolzen an ihren Enden folgendes aufweisen:
    • erste Schneidmittel (9), die geeignet sind, zweite kreisförmige Öffnungen (12) in die Wand (1 b) zu bohren, und
    • erste Mittel zum automatischen Blockieren des Sockels (7, 10a, 10b, 10c), die geeignet sind, den Sockel nach dem Bohren an der Wand (1b) zu verankern;
    - wobei die ersten Mittel zum automatischen Blockieren des Sockels Muttern (7) sowie erste Mittel zum automatischen Halten der Wand (10a, 10b, 10c) aufweisen,
    - wobei jeder Bolzen (5) einen Gewindebereich aufweist, der geeignet ist, mit jeder Mutter (7), in die er eingesteckt ist, zusammenzuwirken, so daß dann, wenn die Mutter (7) an dem Sockel um die ersten Öffnungen (11) zur Anlage kommt, die Mutter geeignet ist, sich an dem Sockel festzusetzen, und das Verschrauben des Bolzens in der Mutter dann die Verankerung des Sockels an der Wand durch deren Festklemmen zwischen der festen Mutter (7) und den ersten Mitteln zum automatischen Halten (10a, 10b, 10c) bewirkt, wobei letztere geeignet sind, an der Innenseite der Wand (1 b) nach Durchqueren der zweiten Öffnungen (12) in Anlage zu kommen, und
    - die ersten Mittel zum automatischen Halten von Ringen (10a) in Form offener Ringe gebildet sind, die geeignet sind, aufgrund ihrer Elastizität in Nuten (10c) am unteren Ende der Bolzen (5) oberhalb der ersten Schneidmittel (9) hineingedrückt zu werden, wobei die Ringe (10a) durch Umfangsringe (10b), die an der Außenseite der Bolzen im Bereich der Ringe (10a), vorzugsweise unter Gleiten mit vermindertem Spiel anliegen, in den Nuten (10c) gehalten werden, derart, daß die Umfangsringe aufgrund der Tatsache, daß ihr Durchmesser größer als derjenige der zweiten Öffnungen ist, nach dem Bohren der zweiten Öffnungen durch die Oberseite der Wand (1b) gehalten werden und geeignet sind, somit die elastisch radial erweiterten Ringe (10a) teilweise aus den Nuten (10c) zu befreien, in denen sie - nach Hindurchgleiten in Längsrichtung durch die zweiten Öffnungen (12) der Wand - blockiert bleiben, wodurch die teilweise radial erweiterten Ringe (10a) geeignet sind, an der Innenseite der Wand (1b), am Umfang der zweiten Öffnungen (12), nach Durchqueren der zweiten Öffnungen in Anlage zu kommen und dadurch das Festklemmen der Wand mittels der Bolzen zwischen der Mutter und dem erweiterten Ring (10a) durch Gleiten der Bolzen in Gegenrichtung infolge ihres Drehens ermöglichen, wenn die Bolzen (5) drehend und in Gegenrichtung, von der Innenseite zur Außenseite der Wand, verschiebend betätigt werden.
  2. Vorrichtung zum Anbringen und Verankern (1a) eines Sockels (2), der dazu bestimmt ist, an einer Wand (1 b) auf dem Meeresgrund verankert zu werden, nach Anspruch 1, dadurch gekennzeichnet, daß sie folgendes umfaßt:
    - eine obere Tragstruktur (4), unter welcher der Sockel (2) durch Mittel zum reversiblen Verbinden (3) auf reversible Weise fest verbunden ist,
    - wobei die obere Struktur (4) Verankerungsbolzen (5) trägt, die von zylindrischen Gewindestangen gebildet sind, deren Achsen sich in einer Längsrichtung ZZ' erstrecken, und die geeignet sind, einerseits mit Hilfe von Zylindern (8a) in der Längsrichtung ZZ' verschieblich angetrieben und andererseits mit Hilfe von Motoren (8b) um ihre Längsachsen drehangetrieben zu werden, wobei die Zylinder und Motoren von der oberen Struktur getragen werden,
    - wobei die Bolzen an ihren Enden erste Schneidmittel (9), wie einen Bohrmeißel oder eine Lochsäge aufweisen, die geeignet sind, zweite kreisförmige Öffnungen (12) in die Wand zu bohren, wenn die Bolzen unter Drücken gegen die Wand und unter axialem Drehen entlang ihrer Längsachse ZZ' angelegt werden,
    - wobei der Sockel geeignet ist, auf die Wand aufgesetzt zu werden und erste zylindrische Bohrungen (11) mit den Achsen ZZ' aufweist, die geeignet sind, von den Bolzen durchgriffen zu werden und in denen die freien Enden der Bolzen, die erste Schneidmittel (9) sowie erste Blockiermittel (7, 10a, 10b, 10c) aufweisen, in der Ausgangsposition vor dem Verankern aufgenommen werden können,
    - wobei die ersten Mittel zum automatischen Blockieren Muttern (7) sowie erste Mittel zum automatischen Halten der Wand (10a, 10b, 10c) umfassen, wobei jeder Bolzen einen Gewindebereich aufweist, der geeignet ist, mit einer Mutter (7), in die er eingesteckt ist, zusammenzuwirken, wobei die Richtung des Gewindes derart ist, daß wenn der Bolzen drehangetrieben wird und in der Längsrichtung ZZ' zu der Wand derart gleitet, daß der Bolzen eine erste Öffnung (11) des Sockels durchgreift und eine zweite Öffnung (12) der Wand durchbohrt, das Drehen und das Gleiten ohne Relativbewegung des Bolzens (5) gegenüber der Mutter (7) erfolgen, anschließend wenn die Mutter (7) an dem Sockel anschlägt, die Mutter geeignet ist, sich an dem Sockel festzusetzen, wobei die Mutter vorzugsweise eine rauhe Unterseite aufweist, und die Richtung des Gewindes ermöglicht, daß die Drehung des Bolzens nun eine Längsverschiebung des Bolzens in Gegenrichtung mit einer Relativbewegung des Bolzens gegenüber der festen Mutter (7) in dem Gewindebereich bewirkt, und anschließend das Verankern des Sockels an der Wand durch deren Festklemmen zwischen der festen Mutter (7) und den ersten Mitteln zum automatischen Halten (10a, 10b, 10c) bewirkt.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß
    - die obere Struktur (4) Hülsen (6) zum Antreiben der Bolzen sowie Motoren (8b) trägt, die geeignet sind, die Hülsen um ihrer Achsen ZZ' drehanzutreiben, wobei die Hülsen zylindrische Hohlaufnahmen mit Achsen in der Längsrichtung ZZ' aufweisen, in denen die oberen Teile der Verankerungsbolzen (5) aufgenommen sind, und
    - die Hülsen (6), wenn sie sich drehen, geeignet sind, die Bolzen mit Hilfe von ergänzenden Führungselementen (5a), die sich in den Hohlaufnahmen bzw. an den oberen Teilen der Bolzen befinden, drehanzutreiben, vorzugsweise Einsteckelementen, wie zum Beispiel Längskeilen (5a), die an die Oberfläche der Bolzen angesetzt sind, und ergänzenden Aufnahmemitteln, wie entsprechenden Nuten oder Rillen in den Hülsen, und
    - jeder Bolzen (5) einen Gewindebereich aufweist, der geeignet ist, mit einer unter den angesetzten Führungselementen (5a) befindlichen Mutter (7) zusammenzuwirken.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß
    - die obere Tragstruktur (4) ein Führungsgestell (4a) aufweist, an dem Schlitten (4b) unter der Wirkung von an dem Gestell fest angebrachten Zylindern (8a) in einer Längsrichtung ZZ' verschiebbar sind, wobei die Schlitten Motoren (8b) tragen, welche geeignet sind, Antriebshülsen (6) um ihre Achsen in der Längsrichtung ZZ' drehend zu betätigen, und
    - die Bolzen (5) einen unterhalb ihrer Führungselemente (5a) befindlichen Gewindebereich aufweisen und mit Muttern (7) zusammenwirken, in die sie im Bereich des Gewindebereichs eingesteckt sind, so daß das untere Ende der Hülsen (6) in gleitendem Kontakt mit der Oberseite der Muttern (7), vorzugsweise über einen Bronzering (7a) ist, und die Verankerungsbolzen (5) geeignet sind, unter starker Reibung in Längsrichtung innerhalb der Hülsen (6) zu gleiten, so daß sie an Ort und Stelle bleiben und nicht aufgrund ihres eigenen Gewichts nach unten entkommen.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sockel eine erste große mittlere zylindrische Öffnung (13) mit einer Achse in der Längsrichtung ZZ' aufweist.
  6. Vorrichtung nach Anspruch 5, die geeignet ist, außerdem das Bohren einer zweiten großen mittleren Öffnung (26) in der Wand (1b) zu vollziehen, dadurch gekennzeichnet, daß
    - die obere Struktur (4) ein zweites kreisförmiges Schneidmittel (14), vorzugsweise vom Typ Bohrmeißel oder Lochsäge, das geeignet ist, eine zweite große mittlere Öffnung (26) mit einer Achse in der Längsrichtung ZZ' in die Wand zu bohren, insbesondere mit größerem Durchmesser als die zweiten Öffnungen (12), sowie Mittel vom Typ Zylinder (16) und Motoren (17) trägt, die geeignet sind, das zweite Schneidmittel (14) in der Längsrichtung ZZ' gleiten zu lassen und um die Achse in der Längsrichtung ZZ' drehend zu betätigen, und
    - wobei die erste große mittlere Öffnung (13) des Sockels in Übereinstimmung mit dem zweiten kreisförmigen Schneidmittel angeordnet und geeignet ist, von dem zweiten Schneidmittel (14) durchgriffen zu werden, wenn dieses in Längsrichtung zur Wand hin gleitet, und die erste große Öffnung des Sockels geeignet ist, durch ein Verschlußmittel (15), vorzugsweise von der Art Schieber mit Horizontalverschiebung verschlossen zu werden.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß
    - die obere Struktur (4) einen Hauptbohrkörper (17) trägt, der gegenüber der Struktur fest ist, wobei der Hauptkörper (17) an seiner Grundfläche das zweite Schneidmittel (14) aufweist und einen Motor (17a) für den Drehantrieb sowie einen Zylinder (16) für die relative Längsverschiebung des zweiten Schneidmittels (14) gegenüber dem Hauptkörper (17) umfaßt, und
    - der Hauptkörper (17) an seinem unteren Ende einen Flansch (18) aufweist und die erste große mittlere Öffnung (13) des Sockels einen oberen Flansch (19) aufweist, die Mittel zum reversiblen Verbinden (3) der oberen Struktur und des Sockels die Verbindung zwischen dem unteren Flansch (18) und dem oberen Flansch (19) sicherstellen.
  8. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß
    - eine dicke und verformbare Dichtung (20), vorzugsweise aus Elastomer, an der Unterseite des Sockels (2) am Umfang der ersten großen mittleren Öffnung (13) angebracht ist, die geeignet ist, nach dem Schneiden der Wand die Dichtigkeit zwischen dem Sockel und der Wand sicherzustellen, und
    - vorzugsweise Keile (21) um die ersten Öffnungen (11) herum an der Unterseite des Sockels angebracht sind, die geeignet sind, das stabile Aufsetzen des Sockels auf die Wand im Falle einer eventuellen Verformung dieser zu ermöglichen.
  9. Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Längsverschiebung des zweiten Schneidmittels (14) durch einen Zylinder (16) mit ausfahrender Stange des Hauptkörpers (17) sichergestellt wird, der eine Sichtkontrolle der Positionierung des zweiten Schneidmittels (14) gegenüber der Wand (1 b), vor allem während des Schneidens der Wand ermöglicht.
  10. Vorrichtung nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß das zweite Schneidmittel (14) geeignet ist, mit einem zweiten Mittel (22) zum Halten der Scheibe (1c) der geschnittenen Wand (1b) nach dem Ausschneiden der zweiten großen mittleren Öffnung der Wand zusammenzuwirken.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß das zweite Haltemittel (22) ein drittes kreisförmiges Schneidmittel (23) umfaßt, das geeignet ist, mit dem zweiten Schneidmittel (14) derart zusammenzuwirken, daß eine dritte Öffnung mit kleinerem Durchmesser als die zweite große mittlere Öffnung (26) in den scheibenförmigen Wandteil (1c), welcher dazu bestimmt ist, durch das zweite Schneidmittel (14) geschnitten zu werden, gebohrt wird, bevor das zweite Schneidmittel (14) das Ausschneiden der großen Öffnung vollzogen hat, und das zweite Mittel (22) zum Halten der Scheibe ein zweites Mittel zum automatischen Blockieren ist, bestehend aus der Kombination eines zweiten elastischen offenen Rings (24), der am unteren Ende einer das dritte Schneidmittel tragenden Zylinderstange in eine Umfangsnut hineingedrückt und in dieser durch einen dritten, ihn bedeckenden Ring (25) gehalten ist, wobei der Durchmesser des dritten Rings (25) größer als der Durchmesser der dritten kleinen Öffnung der Wand ist, so daß nach dem Ausschneiden der dritten Öffnung und nach Durchgreifen der Wand mit der das dritte Schneidmittel tragenden Zylinderstange der zweite Ring (24) elastisch radial erweitert teilweise aus seiner Nut freikommt und gleichzeitig darin gehalten bleibt, was ermöglicht, die Scheibe (1c) zu halten und hinaufzuziehen, wenn das zweite Schneidmittel (14) in Längsrichtung ZZ' zurückgezogen wird.
  12. Verfahren zum Aufsetzen und Verankern eines Sockels auf eine(r) im wesentlichen horizontalen Wand auf dem Meeresgrund, mit Hilfe einer Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die folgenden aufeinanderfolgenden Schritte durchgeführt werden:
    1- von der Oberfläche aus wird eine Vorrichtung nach einem der Ansprüche 1 bis 11 herabgelassen, und
    2- der Sockel (2) wird auf die Wand (1 b) aufgesetzt, und
    3- die Bolzen (5) und die ersten Schneidmittel (9) werden durch eine Längsverschiebung in Richtung der Wand und drehend betätigt, um erste Öffnungen (11) in die Wand zu bohren, und
    4- die ersten Blockiermittel (10a, 10b) werden an der Innenseite der Wand dadurch festgeklemmt, daß die Bolzen gedreht und in Gegenrichtung zur Außenseite der Wand hin längsverschoben werden, und
    5- gegebenenfalls werden die obere Struktur (4) und der Sockel (2) voneinander getrennt und wird die obere Struktur zur Oberfläche hinaufgezogen.
  13. Verfahren nach Anspruch 12, bei dem das Durchbohren einer Wand auf dem Meeresgrund mit Hilfe einer Vorrichtung nach einem der Ansprüche 6 bis 11 vollzogen wird, dadurch gekennzeichnet, daß die Schritte 1 bis 4 des Anspruchs 12 mit Hilfe einer Vorrichtung nach einem der Ansprüche 6 bis 11 und die folgenden späteren Schritte durchgeführt werden:
    5- das Ausschneiden der zweiten großen mittleren Öffnung (26) in der Wand wird dadurch vollzogen, daß das zweite Schneidmittel (14) gedreht und in Richtung der Wand längsverschoben wird, und
    6- das zweite Schneidmittel (14) durch Längsverschieben in Gegenrichtung, zur Außenseite der Wand hin, vorzugsweise unter Festhalten der geschnittenen Wandscheibe (1 c) freigegeben wird, und
    7- die zweite Öffnung des Sockels mit Hilfe eines Verschlußmittels (15), vorzugsweise von der Art Schieber verschlossen wird, und
    8- die obere Struktur (4) von dem Sockel getrennt und die obere Struktur zur Oberfläche hinaufgezogen wird.
  14. Verfahren zur Rückgewinnung eines dickflüssigen Fluids, wie eines verunreinigenden Ausflusses, der leichter als Wasser ist und in einem Tank eines gesunkenen und/oder beschädigten, auf dem Meeresgrund liegenden Schiffes enthalten ist, bei dem:
    1- ein Verfahren zum Aufsetzen und Verankern eines Sockels und ein Durchbohren der Wand des Tanks mit Hilfe einer Vorrichtung nach einem der Ansprüchen 6 bis 11, gemäß einem Verfahren der Ansprüche 12 oder 13 durchgeführt wird, und
    2- ein sogenannter Pendelbehälter (30) von der Oberfläche (40) aus bis oberhalb des Sockels (2) heruntergelassen wird, und
    3- der Pendelbehälter an dem Sockel derart verankert wird, daß die untere Öffnung (31) des Pendelbehälters mit der ersten großen mittleren Öffnung (13) des Sockels zusammenfällt, und
    4- das Verschlußmittel (15) der ersten großen Öffnung (13) des Sockels geöffnet wird und man das in dem Tank enthaltene Fluid über die untere Öffnung (31) des Pendelbehälters auf natürliche Weise in den Pendelbehälter strömen läßt, und
    5- wenn der Pendelbehälter mit Fluid gefüllt ist, dieser nach Wiederverschließen der Verschlußvorrichtung (15) der ersten großen Öffnung des Sockels zur Oberfläche hinaufgezogen wird, und
    6- der fluidgefüllte Pendelbehälter in einem an der Oberfläche befindlichen Schiff gelagert wird und/oder der Pendelbehälter in das genannte Schiff entleert wird und/oder er zu einem Ort transportiert wird, um dort entleert zu werden, und
    7- gegebenenfalls die Schritte 1 bis 6 mit einem gleichen Pendelbehälter oder einem anderen Pendelbehälter wiederholt werden, bis die gewünschte Menge gewonnen ist.
  15. Verfahren nach Anspruch 14, dadurch gekennzeichnet, daß der Pendelbehälter (30) folgendes umfaßt:
    - einen flexiblen oder starren Hauptmantel (30a) mit zylindrischer Umfangswand, über dem eine starre Kuppel (30b) mit einem im Vertikalschnitt granatenförmigen Profil angeordnet ist, wobei die Kuppel vorzugsweise Auftriebsmittel (30c), wie zum Beispiel syntaktischen Schaum enthält, der ermöglicht, sein Aufsteigen zur Oberfläche unter der einfachen Wirkung des hydrostatischen Auftriebs zu kontrollieren, vorzugsweise unter Versetzen des Auftriebsmittelpunkts des fluidgefüllten Pendelbehälters nach oben bezogen auf seinen im Wasser sichtbaren Schwerpunkt.
  16. Verfahren nach einem der Ansprüche 12 bis 15, dadurch gekennzeichnet, daß die Geschwindigkeit des Herablassens einer Vorrichtung (1a) zum Aufsetzen und Verankern des Sockels (2) oder gegebenenfalls eines Pendelbehälters (30) oder des Hinaufziehens einer oberen Struktur (4) oder gegebenenfalls des Pendelbehälters (30) mit einer Stabilisierungsvorrichtung kontrolliert wird, die wenigstens ein Verbindungsseil oder eine Verbindungskette (40a, 40b) umfaßt, das bzw. die sich von der Oberfläche, vorzugsweise von einem an der Oberfläche befindlichen Schiff, bis zu der oberen Struktur (4) oder gegebenenfalls zu dem Pendelbehälter (30) erstreckt, mit der sein Ende verbunden ist, wobei das Verbindungsseil oder die Verbindungskette (40a, 40b) einen unteren Abschnitt aufweist, der beschwert ist, vorzugsweise durch entlang des zweiten Seils in Reihe angeordnete Blöcke (41) oder durch schwerere große Glieder der Kette, so daß das Gewicht der Länge des hängenden unteren Seil- oder Kettenabschnitts unter seinem Verbindungspunkt (43, 55) mit der oberen Struktur (4) oder dem Pendelbehälter (30) von der Oberfläche aus eingestellt werden kann, vorzugsweise mit Hilfe einer an Bord eines an der Oberfläche befindlichen Schiffes angeordneten Winde, von der das obere Ende des Seils oder der Kette abgewickelt oder auf die dieses aufgewickelt wird, so daß die Geschwindigkeit des Herablassens bzw. des Hinaufziehens der oberen Struktur (4) oder gegebenenfalls des Pendelbehälters (30) kontrolliert wird.
EP04358002A 2003-03-26 2004-02-26 Vorrichtung und Verfahren zum Befestigen einer Basiskonstruktion auf einer Wandfläche am Meeresgrund Expired - Lifetime EP1568600B1 (de)

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DE602004030314T DE602004030314D1 (de) 2004-02-26 2004-02-26 Vorrichtung und Verfahren zum Befestigen einer Basiskonstruktion auf einer Wandfläche am Meeresgrund
AT04358002T ATE490166T1 (de) 2004-02-26 2004-02-26 Vorrichtung und verfahren zum befestigen einer basiskonstruktion auf einer wandfläche am meeresgrund
EP04358002A EP1568600B1 (de) 2004-02-26 2004-02-26 Vorrichtung und Verfahren zum Befestigen einer Basiskonstruktion auf einer Wandfläche am Meeresgrund
PCT/FR2004/000742 WO2004087495A2 (fr) 2003-03-26 2004-03-25 Dispositif et procede de stabilisation et de controle de la descente ou remontee d’une structure lourde entre la surface et le fond de la mer
DE602004004382T DE602004004382D1 (de) 2003-03-26 2004-03-25 Vorrichtung und verfahren für die stabilisierung und kontrolle der niedergang und des aufstiegs einer schweren struktur zwischen meeresoberfläche und meeresboden
EP04742350A EP1606160B1 (de) 2003-03-26 2004-03-25 Vorrichtung und verfahren für die stabilisierung und kontrolle der niedergang und des aufstiegs einer schweren struktur zwischen meeresoberfläche und meeresboden
US10/550,263 US20070089656A1 (en) 2003-03-26 2004-03-25 Device and a method for stabilizing and controlling the lowering or raising of a structure between the surface and the bed of the sea
ES04742350T ES2280032T3 (es) 2003-03-26 2004-03-25 Dispositivo y procedimiento de estabilizacion y de control del descenso o elevacion de una estructura pesada entre la superficie y el fondo del mar.

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CN102490878A (zh) * 2011-11-25 2012-06-13 北京航空航天大学 单自由度对称式摆动驱动的大展缩比水下机器人回收装置
CN102490878B (zh) * 2011-11-25 2014-03-12 北京航空航天大学 单自由度对称式摆动驱动的大展缩比水下机器人回收装置

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