EP2286056B1 - Boden-oberfläche-verbindung aus einem starren steigrohr mit flexiblem kanal mit positiver flotation - Google Patents

Boden-oberfläche-verbindung aus einem starren steigrohr mit flexiblem kanal mit positiver flotation Download PDF

Info

Publication number
EP2286056B1
EP2286056B1 EP09745928A EP09745928A EP2286056B1 EP 2286056 B1 EP2286056 B1 EP 2286056B1 EP 09745928 A EP09745928 A EP 09745928A EP 09745928 A EP09745928 A EP 09745928A EP 2286056 B1 EP2286056 B1 EP 2286056B1
Authority
EP
European Patent Office
Prior art keywords
pipe
riser
rigid
base
flexible pipe
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.)
Active
Application number
EP09745928A
Other languages
English (en)
French (fr)
Other versions
EP2286056A2 (de
Inventor
François-Régis PIONETTI
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.)
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
Application filed by Saipem SA filed Critical Saipem SA
Publication of EP2286056A2 publication Critical patent/EP2286056A2/de
Application granted granted Critical
Publication of EP2286056B1 publication Critical patent/EP2286056B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B17/01—Risers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B17/01—Risers
    • E21B17/015—Non-vertical risers, e.g. articulated or catenary-type
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B17/01—Risers
    • E21B17/017—Bend restrictors for limiting stress on risers

Definitions

  • the present invention relates to a bottom-to-surface connection installation between a submarine pipe resting at the bottom of the sea and a floating support surface, comprising a hybrid tower consisting of a flexible pipe connected to a rising rigid pipe, or riser vertical , whose lower end comprises an inertial transition piece allowing it to be embedded in an anchoring device comprising a base resting at the bottom of the sea.
  • the technical field of the invention is more particularly the field of the manufacture and installation of production risers for the underwater extraction of oil, gas or other soluble or fusible material or a suspension of mineral material from wellhead immersed to a floating support, for the development of production fields installed offshore at sea.
  • the main and immediate application of the invention being in the field of oil production.
  • the floating support generally comprises anchoring means to remain in position despite the effects of currents, winds and waves. It also generally comprises oil storage and processing means as well as means of unloading to removal tankers, the latter being present at regular intervals to carry out the removal of the production.
  • the common name of these floating supports is the Anglo-Saxon term “Floating Production Storage Offloading” (meaning “floating medium of storage, production and unloading") which one uses the abbreviated term "FPSO" in the whole of the following description.
  • Such a catenary duct can go up to the floating support surface or only to a sub-surface float that tensions its upper end, which upper end is then connected to a floating support by a plunging flexible connecting pipe.
  • a multiple hybrid tower comprising an anchoring system with a vertical tendon consisting of either a cable or a metal bar, or a pipe stretched at its upper end by a float.
  • the lower end of the tendon is attached to a base resting at the bottom.
  • Said tendon comprises guiding means distributed over its entire length through which passes a plurality of said risers vertical.
  • Said base can be placed simply on the seabed and stay in place by its own weight, or remain anchored by means of batteries or any other device to keep it in place.
  • the lower end of the riser vertical is adapted to be connected to the end of a bend, movable cuff, between a high position and a low position, relative to said base, to which this cuff is suspended and associated with a means of return bringing it back up in the absence of the riser.
  • This mobility of the bent sleeve makes it possible to absorb the length variations of the riser under the effects of temperature and pressure.
  • a stop device integral with it, comes to rest on the support guide installed at the head of the float and thus maintains the entire riser in suspension.
  • connection with the submarine pipe resting on the seabed is generally effected by a pig-shaped or S-shaped pipe portion, said S being then made in a vertical or horizontal plane, the connection with said underwater pipe being generally carried out via an automatic connector.
  • This embodiment comprising a plurality of risers held by a central structure comprising guide means is relatively expensive and complex to install.
  • the installation must be prefabricated on the ground before being towed at sea, then once on site, cabane to be put in place.
  • its maintenance also requires relatively high operating costs.
  • bottom-surface links are of short lengths and thus for the bulk of the different links connected to the same floating support to be limited.
  • WO 02/103153 it has been sought to provide an installation which can be manufactured entirely on land, in particular as regards the assembly of the rigid pipes resting at the bottom of the sea and the vertical risers ensuring the bottom-surface connection.
  • WO 02/103153 it was sought to implement an installation whose establishment at the bottom of the sea requires no flexible joint ball joint in the lower part of the tower. To do this, the underwater pipe resting at the bottom of the sea is connected to said vertical riser by a flexible pipe element held by a base resting at the bottom of the sea.
  • the vertical riser is tensioned by a sub-surface float and the connection between the vertical riser and the floating support is made by a flexible pipe in a chain configuration.
  • plunger whose end is connected to the upper end of said vertical riser by a gooseneck device.
  • a vertical riser connected to a flexible pipe in a plunging chain configuration is described, the end of the flexible pipe connected to said riser has a curvature imposed by a vertical section gutter of circular shape resting at the top of a float of form toric, said gutter serving gooseneck and avoiding too small radii of curvature can lead to crushing of said flexible pipe.
  • This embodiment does not prevent wear of the flexible pipe at its interaction with said channel, which affects the intrinsic reliability of the connection between the vertical riser and the flexible pipe in terms of mechanical strength over time .
  • An object of the present invention is therefore to provide a bottom-surface link installation with hybrid towers, compact, simple to install and can be manufactured at sea from a pipe laying ship, but the system of anchoring is of great strength and low cost, and whose manufacturing processes and implementation of the various constituent elements are simplified and also low cost, and can be carried out at sea, also, from a ship deposit.
  • Another purpose is to provide an installation that does not require the implementation of flexible joints, especially at the base of the vertical riser.
  • Another object of the present invention is to provide a bottom-surface connection installation as described above, which requires the implementation of a single connecting element, in particular a single automatic connector, between the end bottom of the vertical riser and the end of the pipe resting at the bottom of the sea.
  • vertical riser is used here to account for the theoretical position of the riser when the riser is at rest, provided that the riser axis can know angular movements with respect to the vertical and move in a cone. angle ⁇ whose apex corresponds to the point of attachment of the lower end of the riser on said base.
  • the upper end of said vertical riser may be slightly curved. Therefore, the term “flexible pipe end portion substantially in alignment with the axis Z 1 Z ' 1 of said upper riser” that the end of the inverted chain curve of said flexible pipe is substantially tangential to the end of said vertical riser. In any case, in continuity of variation of curvature, that is to say without singular point, in the mathematical sense.
  • inertia is meant here the moment of inertia of said inertial transition line element with respect to an axis perpendicular to the axis of said inertial transition conductor element, which reflects the bending stiffness in each planes perpendicular to the XX 'axis of symmetry of said driving element, this moment of inertia being proportional to the product of the section of material by the square of its distance from said axis of the driving element.
  • the slope of the curve formed by the flexible pipe is such that the inclination of its tangent relative to the axis Z 1 Z ' 1 of the upper part of said vertical riser increases continuously and progressively from the connection point between the upper end of the vertical riser and the end of said end portion of flexible pipe of positive buoyancy, without point of inflection and without point of inversion of curvature.
  • the installation according to the present invention thus makes it possible to prevent the tensioning of the vertical riser by a float on the surface or sub-surface, at which its upper end would be suspended, on the one hand, and, on the other hand, to avoid the connection to said plunging flexible pipe via a gooseneck device, as used in the prior art.
  • This not only results in greater intrinsic reliability in terms of mechanical strength over time of the connection between the vertical riser and the flexible pipe, because the gooseneck devices are fragile.
  • this type of installation confers increased stability in terms of angular variation (y) of the angle of excursion of the upper end of the vertical riser relative to a theoretical position of vertical rest, because this angular variation is reduced in practice to a maximum angle not exceeding 5 °, in practice of the order of 1 to 4 ° with the installation according to the invention, whereas, in the embodiments of the prior art, the angular excursion could reach 5 to 10 ° or more.
  • Another advantage of the present invention is that, because of this small angular variation of the upper end of the vertical riser, it is possible to implement, at its lower end, a rigid recess on a base resting at the bottom of the sea, without having recourse to a part of transition of inertia of dimension too important and thus too expensive. It is therefore possible to avoid the implementation of a flexible hinge, in particular of the spherical flexible ball type, as long as the junction between the lower end of the riser and said recess comprises an inertia transition piece.
  • the positive buoyancy of the riser and the flexible pipe can be made in known manner by coaxial peripheral floats surrounding said pipes, or, preferably, as regards the rigid pipe of the vertical riser, a positive buoyancy material coating. , preferably also constituting an insulating material, such as syntactic foam, in the form of a shell enclosing said pipe.
  • Such buoyancy elements resistant to very high pressures that is to say at pressures of about 10 MPa per 1000 m of water, are known to those skilled in the art and are available from the BALMORAL company (UK).
  • the positive buoyancy will be distributed regularly and uniformly over the entire length of said end portion 10a of the flexible pipe and at least said upper portion 9b of said rigid pipe.
  • said end portion of the flexible pipe having a positive buoyancy extends over a length of 30 to 60% of the total length of the flexible pipe. preferably about half of the total length of said flexible pipe.
  • said flexible pipe has a positive buoyancy over a length corresponding to 30 to 60%, of its total length, preferably about half of its total length.
  • the portion of plunging flexible pipe, that is to say, negative buoyancy may be even shorter than the anchoring of the floating support surface is steep.
  • said positive buoyancy must allow to obtain a vertical resultant thrust of 50 to 150 kg / m, that is, said required buoyancy should correspond to the apparent weight of said rigid pipe and said flexible pipe end portion plus additional buoyancy of 50 to 150 kg / m.
  • said first and second piles are assemblies of standard unitary elements of rigid pipes or unitary unit portions of rigid pipes, said second pile being shorter than said first pile.
  • This anchoring system of the base and fixing said support device and connection, at the lower end of said inertial transition piece on said base, is particularly advantageous for the following reasons.
  • the combination of the first pile and the tubular anchoring insert constitutes a guide system, which makes it possible to make said first connecting element parts and the second end connecting element part coincide with each other.
  • the terminal pipe element of the sea-bottom pipe which is fixedly positioned with respect to said base, and, on the other hand, the end of said rigid pipe element fixedly positioned relative to said support device.
  • tubular anchoring insert is positioned in the axis of said inertia transition piece and said second rigid pipe member supported by said support and connecting device is curved or bent so that said first automatic connector-type connection member portion is laterally disengaged from the remainder of said support and connection device, and said second connector-type connector element automatically at the end of said first rigid terminal conduit element of said pipe resting at the bottom of the sea, integral with said base, is also disengaged with respect to the orifice of said base and with respect to said support device and connection of which said anchoring insert is inserted inside said first anchor pile.
  • said first end pipe member of said bottom-lying pipe may preferably also be bent to coincide with the end of said second bent rigid pipe member and allow easy connection by a underwater automaton type ROV at the bottom of the sea.
  • Such inertial transition pipe members may be 15 to 50 m in length. More particularly, the cylindrical portion extending over a length of 3 to 5 m and the conical portion over a length of 10 to 47 m.
  • These parts are very expensive to manufacture because they must be made using very thick pipes, but of varying thickness, assembled together, and then machined on a very large lathe to obtain the conical shape.
  • Such parts are very expensive to achieve, because to obtain a good result, it is necessary that the pipe assembled by welding before machining is perfectly rectilinear, and moreover the turns capable of precisely machining parts of 20 to 30m in length are difficult to find and at a very high operational cost.
  • the cylindroconic transition pieces can not be made of steel, and require the use of titanium, which further increases the cost and complexity.
  • said inertial transition terminal pipe element comprises a main rigid pipe element and at least one, preferably a plurality, of coaxial reinforcing pipe elements disposed coaxially with said element.
  • said annular space is completely filled with the same solid filler material, preferably comprising an elastomer material, more preferably based on polyurethane, having a Shore hardness greater than or equal to A50, more preferably A50. at D70, and said inertial transition element is covered with a corrosion-resistant elastomeric cover material, preferably of polyurethane type, said inertia transition end-conductor element having a substantially cylindrical-conical shape through its coating by said covering material.
  • the annular space is completely filled with the same filling material and the covering material imparts a cylindro-conical shape to the transition piece, a continuous variation of the cross-sectional diameter of the same is obtained.
  • the piece and with the same filling material over the entire height of the transition piece which results in a gradual and continuous variation of inertia, that is to say without discontinuity of inertia.
  • the implementation of an elastomeric cover material provides a corrosion protection guaranteeing greater longevity to said transition piece, which is subjected to a high mechanical stress and without this protection would have reduced longevity.
  • said solid filler material must have a compressive strength so as to transfer the shear forces to the higher order reinforcing pipe member "i + 1" in a manner proportional to the deformation of a said element. coaxial it contains order "i” under the effect of a bending effort.
  • the solid filler In practice the solid filler must have a Poisson's ratio of 0.3 to 0.49, preferably 0.4 to 0.45.
  • This filler material may be an elastomer such as rubber or polyurethane alone or in combination with sand.
  • the solid filler material is in the form of a hydraulic binder such as cement, optionally filled with particulate material, preferably sand.
  • An important advantage of the bottom-surface connection plant of the present invention also lies in the simplicity of its installation at the bottom of the sea.
  • This process according to the invention is particularly simple and therefore advantageous to set up.
  • This simplicity results from the fact that the anchoring function on said base is filled by said anchoring insert, on the underside of said support and connection device, and that the bending moments experienced by the inertia transition piece are taken by the first anchoring pile driven to the bottom of the sea and not by said base, so that it is possible to implement a relatively low weight and low volume base.
  • FIG. 1 there is shown a bottom-surface connection facility 1 connecting an underwater line 2 resting on the seabed 3 to a floating support type FPSO 12 surface moored by anchor lines 12a.
  • the flexible pipe has a variation of continuous curvature, first concave in the plunger chain configuration part 10b, then convex in the positive buoyancy end portion 10a with an inflection point 10d between the two, thus forming an S disposed in a substantially vertical plane.
  • the curvature varies along the chain from the surface (for a plunging chain) or from its end portion to the upper end of the riser (for an inverted chain) where its radius has a maximum value R max , up to point of horizontal tangency (which is the low point of the plunging chain 10b and the high point of the inverted chain 10a), where its radius has a minimum value R min (or R 0 in the formula above).
  • This flexible pipe is to allow its initial portion 10b plunging to dampen the excursions of the floating supports 12 so as to stabilize the end 10c of the flexible pipe connected to a rigid riser pipe of the vertical riser 1.
  • the end of the portion of the floating end portion 10c of the flexible pipe carries a first fastening flange member 11 with the upper end of a rigid pipe extending from the seabed recessed at a base 4 resting at the bottom of the sea.
  • the vertical riser 9 is "tensioned" on the one hand by the buoyancy of the end portion 10a of the flexible pipe, but on the other hand and above all by floats regularly distributed at least on the upper part 9b, preferably all along the rigid pipe, especially in the form of syntactic foam advantageously acting as both an insulation and buoyancy system.
  • floats and this syntactic foam can be distributed along and around the rigid pipe over its entire length or, preferably, only on a portion of its upper part.
  • the base 4 can be limited to coating the rigid pipe 1 of syntactic foam over a length of 1000 m from its upper end, which allows to implement a syntactic foam that must withstand less pressure than if it had to withstand pressures up to 2500 m, and therefore a radically reduced cost compared to a syntactic foam to withstand said depth of 2500 m.
  • the rigid pipe 1 according to the invention is therefore “tensioned” without implementation of a float surface or sub-surface as in the prior art, which limits the effects of the current and the swell, and thus drastically reduces the excursion of the upper part of the vertical riser and therefore the efforts in the foot of riser at the level of the embedding.
  • the positive buoyancy is distributed over the entire length of the rigid pipe, it represents from 50 to 150 kg of resulting thrust per meter of pipe.
  • buoys 10f spaced from each other and regularly distributed on the portion 10a, each representing the equivalent of a few meters of the required thrust, for example for a spacing of 5 to 10 m the resulting thrust required for each float will be 250 to 1500 kg per float.
  • the overall buoyancy corresponds to what is commonly called the "Archimedes thrust” or “Apparent Weight” on each of the parts of the bottom-surface connection: corresponding on the one hand to the buoyancy required for counterbalance the respective apparent weight of the rigid pipe and the flexible pipe, and secondly to the additional buoyancy necessary for tensioning which thus provides a resultant vertical thrust of 50 to 150 kg / m as previously described.
  • the fastening flange system 11 between the upper end of the vertical riser 9 and the flexible pipe 10, and the connection of the fastening flanges 9a, 5a between the lower end to the inertia transition piece 8 and the device of FIG. connection support 5, provide sealed connections between the relevant conduits.
  • the base 4 resting at the bottom of the sea supports a first curved or curved terminal pipe element 2a of said pipe resting at the bottom of the sea 2.
  • This first curved or curved end pipe element 2a comprises at its end a first male or female part of an automatic connector 7b, which is released laterally. relative to a through hole 4a of said base, but positioned fixedly and determined with respect to the axis ZZ 'of said orifice.
  • the support and connection device 5 supports a second rigid elbow pipe element 5b having at its upper end said second attachment flange 5a and at its lower end a second female or male part of an automatic connector 7a, complementary to Part 7b.
  • a first tubular anchoring pile 6 is lowered from an installation vessel 20 on the surface, then depressed, preferably beaten in known manner, through an orifice 4a vertically traversing from one end to the base 4 until a peripheral protuberance 6a at the upper end of said first pile 6 comes to cooperate with a complementary shape 4c in the upper part of said orifice 4a of the base.
  • the orifice 4a is slightly larger than the first pile 6 to let it slide freely. And when the threshing of said first pile is completed, the base 4 is thus nailed to the ground without being able to move laterally or pivot around any horizontal axis.
  • a plurality of orifices and said first piles 6 are provided.
  • the first step consists in descending to the bottom of the sea from the surface, said base equipped with said first terminal pipe element 2a of the resting pipe. at the bottom of the sea.
  • anchoring of the transition piece 8 is carried out at the lower end of the vertical riser by fixing on the support and connection device 5, itself anchored on said base, thus forming a rigid recess of the lower end of the vertical riser.
  • the support and connection device 5 consists of elements of rigid structure and stiffener 5c supporting said second fastening flange 5a and said second curved rigid pipe element 5b, said rigid structure elements 5c also ensuring the connection between said second flange fixing 5a and a lower plate 5d supporting on the underside a second tubular pile 5e called tubular anchoring insert.
  • the various surface-to-surface connection elements are manufactured on board the surface vessel 20, in particular assembling the rakes consisting of a plurality of standard pipe elements, which are progressively lowered.
  • said device 5 is connected in a sealed manner to the lower end of the vertical riser 9 via the conical transition piece 8, then the entire vertical riser equipped with its buoyancy elements, and finally the flexible connecting pipe equipped with its buoyancy elements fixed in direct continuity with the upper end of the vertical riser 9.
  • the assembly and the laying of the rigid pipe 9 are conventionally made from the ship 20 by assembling unit pipe elements or reams of unitary elements stored on the surface vessel 20, and descended as and when a technique known to those skilled in the art and described in particular in previous patent applications in the name of the applicant, from a laying ship in J.
  • the rigid steel pipe 9 may be in known manner a Pipe-in-Pipe type pipe comprising an insulation system in the annular space between the two coaxial pipes constituting the riser 9 and furthermore a pipe system. insulation such as syntactic foam acting as a buoyancy system as described above.
  • tubular anchoring insert 5e When the lower end of the tubular anchoring insert 5e, preferably having a slightly conical shape 5f is positioned close to and in line with the orifice 4a of the base 4, it is advantageous to direct said tubular insert anchoring 5th, more precisely thanks to an automatic submarine or "ROV" 20a piloted from the surface. Said tubular insert 5e of length 10 to 15 m then returns naturally by its own weight in said first tubular anchoring pile driven to the bottom of the sea to a depth of 30 to 70 m.
  • ROV automatic submarine or
  • the external diameter of the tubular anchoring insert 5e may be slightly smaller than the internal diameter of the first pile 6, for example less than 5 cm, which facilitates guiding the tubular insert 5 inside said first pile 6 , while preventing transverse movements in a horizontal plane once the tubular insert 5 is fully inserted as shown in FIG. figure 3 .
  • a latch 4b shown in the retracted position on the Figure 2A is moved to the engaged position as on the figures 1 and 3 so as to block the upper plate 5d of the tubular insert 5e, inside said first pile 6, thus preventing any upward movement of the bottom-surface connection assembly 1 which is recessed via of the connecting support device 5 in the first pile 6 integral with said base 4.
  • the end 10e of the flexible pipe 10 is recovered which is then connected to said floating support FPSO 12 as shown in FIG. figure 1 , and the provisional buoy 21 is recovered as well as its dead body 21b and its anchoring cable 21a.
  • the tubular insert 5e transmits to said first tubular pile 6, the bending moments due to the cutting and transverse forces experienced at the recess of the part 8 on the device 5.
  • the fixing system of the upper end of the rigid pipe 9 with the flexible pipe 10 and the tensioning of said pipes gives greater stability to the upper end of the rigid pipe 9 with an angular variation y not exceeding in operation the 5 ° C.
  • the lower end pipe element of the rigid pipe 9 comprises a conical transition piece 8 whose inertia in cross section increases progressively from a value substantially identical to the inertia of the pipe element of the riser 9 to which it is connected, in the tapered upper part of the transition piece 8, to a value 3 to 10 times greater than the level of its lower part connected to said first attachment flange 9a.
  • inertia The coefficient of variation of inertia essentially depends on the bending moment that the vertical riser must bear at said transition piece, said moment being a function of the maximum excursion of the upper part of the rigid steel pipe 9, therefore of the angle there.
  • transition piece 8 To achieve this transition piece 8 is used high yield strength steels and in extreme cases of stress, it may be necessary to manufacture titanium transition parts 8.
  • a cylindro-conical transition piece 8 having a variable thickness gradually increasing from the tapered upper part 81 to the thicker lower part 82 with a constant internal diameter corresponding to the internal diameter of a standard rigid pipe and In any event, at the internal diameter of the second rigid pipe element 6.
  • the transition piece 8 consists of a main steel pipe element 8a, preferably of internal diameter d 1 identical to that of the current portion of the pipe 9, and preferably of thickness equal to or slightly greater than that of the of said current portion of said duct 9, and preferably of thickness equal to that of said second elbow pipe element 5b.
  • transition piece 8 having a first inner pipe element 8a and three element 8b-8c-8d coaxial reinforcement pipe of increasing diameter d 2 -d 3 -d 4 and lengths h 2 -h 3 -h 4 decreasing, each of said coaxial pipe elements being integral with its lower end of the same said first flange 9a.
  • an elastomeric material 8e preferably such as a polyurethane, whose shore hardness is adjusted to obtain the desired stiffness variation, in particular a shore hardness of A50 to D70.
  • FIG. Figure 5C It is sufficient to inject said rigid material 8e only in the annular gaps between the coaxial pipe elements, as shown in FIG. Figure 5C .
  • a mold is installed in such a way as to obtain a cylindro-conical piece as shown in FIG. Figure 5B , which makes it possible to perform in a single operation the reinforcement of the transition piece and its protection vis-à-vis the aggression of the external environment by an outer coating thus conferring a cylindro-conical shape with a transition of steady and continuous inertia. Care should be taken not to cover the upper part of the transition piece with thermosetting resin over a length of 20 to 50 cm so as to be able to assemble it on board the installation vessel 20, by welding at the lower end of the the rigid pipe 9.
  • the variation diagram of the inertia I is plotted on the ordinate between the flange 9 and the upper end of the transition piece 8 of the Figures 5B and 5C .
  • the dashed staircase 30 represents the variation of the steel section in the absence of roofing and filling material at each of the reinforcing pipe members.
  • the curves 31-32-33 represent the variation of the inertia ( ⁇ EI) of the transition piece 8 of the figures 4 and 5C depending on its length, depending on the type of filler material.
  • Curve 33, of parabolic shape is obtained with a polyurethane filling material of shore hardness A90 or A95, and is a preferred version of the invention.
  • the curve 31 is obtained with a much stiffer material, such as a cement with very high performance, alone or in combination with a powdery load, such as sand.
  • the intermediate curve 32 corresponds to the steel transition piece of the figure 4 .
  • hardness A90 or A95 is closer to the curve 32 than curves 31 and 33 and is therefore the preferred version of the invention in terms of inertia variation.
  • the invention has been described with a base 4 placed at the same time as the submarine pipe resting on the bottom, said base being stabilized by a first pile 6 therethrough.
  • a base 4 constituted by a suction anchor, having an orifice, preferably circular integrated with said suction anchor and acting as a pile 6 and capable of receiving the anchoring insert 5e.
  • the support and connecting device 5 at the lower end of the bottom-surface connection is directly embedded in the suction anchor whose weight reaches 25 to 50 tons for a diameter of 3 to 5 m and a height of 20-25m.
  • underwater driving 2 is laid independently and therefore requires a connecting pipe 7 manufactured on demand after installation of the bottom-surface connection and the underwater pipe 2.
  • Said connecting pipe 7 then requires two automatic connectors 7a-7a 1 , 7b 1 -7b, one at each of its ends, whereas the version described with reference to the figure 3A only requires one 7a-7b automatic connector.
  • the invention has been described in a preferred version manufactured and simultaneously installed on site from a laying ship 20, but it remains in the spirit of the invention with a prefabrication of the complete set on a shipyard on land , the assembly then being towed substantially horizontally to the site, then finally cabane for the insertion of the anchoring insert 5e in the first tubular pile 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Sewage (AREA)

Claims (15)

  1. Einrichtung zur Grund-Oberflächen-Verbindung, insbesondere in großer Tiefe von mehr als 1.000 m, umfassend:
    a- wenigstens eine starre, im wesentlichen vertikale, als vertikaler Riser (9) bezeichnete Steigleitung, die an ihrem unteren Ende an einer
    Verankerungsvorrichtung (4, 5, 6) am Meeresgrund (3) befestigt ist, und
    b- wenigstens eine flexible Verbindungsleitung (10), die die Verbindung zwischen einem schwimmenden Träger (12) und dem oberen Ende des vertikalen Risers (9) sicherstellt,
    c- ein Ende der flexiblen Leitung ist direkt, vorzugweise über ein Flanschsystem (11), an das obere Ende des vertikalen Risers (9) angeschlossen, und
    dadurch gekennzeichnet, daß:
    - das untere Ende des vertikalen Risers ein abschließendes Leitungselement umfaßt, das ein Trägheitsübergangsteil (8) bildet, dessen Trägheitsänderung derart ist, daß die Trägheit des abschließenden Leitungselements, an seinem oberen Ende, im wesentlichen mit derjenigen des Leitungselements des durchgehenden Teils des vertikalen Risers, mit dem es verbunden ist, identisch ist, wobei die Trägheit des abschließenden Leitungselements (8) bis zum unteren Ende des Trägheitsübergangsteils, das einen ersten Befestigungsflansch (9a) aufweist, der das Einfügen (5a-5e) des unteren Endes des vertikalen Risers im Bereich der Verankerungsvorrichtung (4, 5, 6) am Meeresgrund ermöglicht, schrittweise zunimmt,
    - ein Abschlußteil (10a) der flexiblen Leitung, auf der Seite ihrer Verbindung mit dem oberen Ende des Risers, einen positiven Auftrieb aufweist und wenigstens der obere Teil (9b) des vertikalen Risers ebenfalls einen positiven Auftrieb aufweist, so daß die positiven Auftriebe des Abschlußteils (10a) der flexiblen Leitung und des oberen Teils (9a) des vertikalen Risers (9) das Spannen des Risers in im wesentlichen vertikaler Position sowie die Ausrichtung oder die Kontinuität der Krümmung zwischen dem Ende des Abschlußteils (10a) der flexiblen Leitung und dem oberen Teil (9b) des vertikalen Risers im Bereich ihrer Verbindung ermöglichen, wobei der positive Auftrieb durch eine Vielzahl von koaxialen, gleichmäßig beabstandeten Umfangsschwimmern (10f) und/oder eine durchgehende Beschichtung aus Material mit positivem Auftrieb verliehen wird, und
    - der Abschlußteil (10a) der flexiblen Leitung (10), der einen positiven Auftrieb aufweist, sich über einen Teil der Gesamtlänge der flexiblen Leitung erstreckt, derart, daß die flexible Leitung eine S-förmige Gestalt aufweist, mit einem ersten flexiblen Leitungsabschnitt (10b) auf der Seite des schwimmenden Trägers (12), der eine kettenlinienförmige konkave Krümmung mit der Gestalt einer eintauchenden Kettenlinie aufweist, und wobei der verbleibende Abschlußteil der flexiblen Leitung (10a) aufgrund seines positiven Auftriebs eine konvexe Krümmung in Form einer umgekehrten Kettenlinie aufweist, wobei das Ende (10c) des Abschlußteils der flexiblen Leitung (10a), im Bereich des oberen Endes des Risers, oberhalb und vorzugsweise im wesentlichen in der Flucht der Achse (Z1Z'1) des Risers an seinem oberen Ende (9b) gelegen ist.
  2. Einrichtung zur Grund-Oberflächen-Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß:
    - der positive Auftrieb über die gesamte Länge des Abschlußteils (10a) der flexiblen Leitung und wenigstens den oberen Teil (9b) der starren Leitung, vorzugsweise über die gesamte Länge der starren Leitung, gleichmäßig und gleichförmig verteilt ist, um über die gesamte Länge der starren Leitung und die Länge des Abschlußteils der flexiblen Leitung einen resultierenden Auftrieb von 50 bis 150 kg/Meter zu erhalten, und
    - die flexible Leitung (10) über eine Länge, die 30 bis 60 % ihrer Gesamtlänge entspricht, vorzugsweise etwa die Hälfte ihrer Gesamtlänge einen positiven Auftrieb (10a) aufweist.
  3. Einrichtung zur Grund-Oberflächen-Verbindung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß:
    - der vertikale Riser (9) an seinem unteren Ende mit wenigstens einer auf dem Meeresgrund aufliegenden Leitung (2) verbunden ist und
    - die Verankerungsvorrichtung (4, 5, 6) eine Trag- und Verbindungsvorrichtung (5) umfaßt, die an einem Sockel (4), welcher am Meeresboden verlegt und verankert ist (6), befestigt ist, und
    - die auf dem Meeresgrund aufliegende Leitung (2) ein erstes abschließendes starres Leitungselement (2a), das mit dem auf dem Meeresgrund (3) aufliegenden Sockel (4) fest verbunden ist, umfaßt und das erste abschließende Leitungselement mit -an seinem Ende- einem ersten Verbindungselementteil (7b), vorzugsweise einem Einsteck- oder Aufnahmeteil eines automatischen Verbinders, gegenüber dem Sockel fest gehalten ist, und
    - der erste Befestigungsflansch (9a) am unteren Ende des Trägheitsübergangsteils (8) an einem zweiten Befestigungsflansch (5a) am Ende eines zweiten gekrümmten, starren Leitungselements (5b) befestigt ist, der mit der Trag- und Verbindungsvorrichtung (5a-5e) fest verbunden ist, welche an dem Sockel (4) befestigt ist und das zweite gekrümmte, starre Leitungselement (5b) fest und starr trägt, dessen anderes Ende ein zweites Verbindungselementteil (7a) umfaßt, welches zu dem ersten Verbindungselementteil (7b) ergänzend und mit diesem verbunden ist, wenn das Trag- und Verbindungselement (5a-5e) an dem Sockel befestigt ist.
  4. Einrichtung zur Grund-Oberflächen-Verbindung nach Anspruch 3, dadurch gekennzeichnet, daß:
    - der Sockel (4) durch einen ersten rohrförmigen Pfahl (6), der eine durchgehende Öffnung (4a) des Sockels durchgreift, am Meeresgrund verankert ist, wobei der erste Pfahl (6) am Meeresgrund in den Boden eingetrieben ist und sein oberer Teil (6a) mit dem Sockel zusammenwirkt, um die Verankerung des Sockels zu ermöglichen, und
    - die Trag- und Verbindungsvorrichtung (5a-5e), die das zweite gekrümmte, starre Leitungselement (5b) trägt, einen als rohrförmigen Verankerungseinsatz (5e) bezeichneten zweiten rohrförmigen Pfahl umfaßt, der in den ersten rohrförmigen Pfahl zur Verankerung des Sockels eingefügt wird, wobei der Sockel eine Blockiervorrichtung (4a) umfaßt, die den rohrförmigen Verankerungseinsatz (5e) im Falle, daß der zweite rohrförmige Pfahl (5e) nach oben gezogen wird, in dem ersten rohrförmigen Pfahl (2b) festhält.
  5. Einrichtung zur Grund-Oberflächen-Verbindung nach Anspruch 4, dadurch gekennzeichnet, daß der erste und der zweite Pfahl Verbindungen aus Standardeinzelelementen von starren Leitungen oder Einzelelementabschnitte von starren Leitungen sind, wobei der zweite Pfahl kürzer als der erste Pfahl ist.
  6. Einrichtung zur Grund-Oberflächen-Verbindung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß der rohrförmige Verankerungseinsatz (5e) in der Achse des Trägheitsübergangsteils (8) positioniert ist und das zweite starre Leitungselement (5b), das von der Trag- und Verbindungsvorrichtung (5a-5e) getragen wird, derart gebogen oder gekrümmt ist, daß das erste Verbindungselementteil (7a) vom Typ automatischer Verbinder auch gegenüber dem Rest der Trag- und Verbindungsvorrichtung (5) seitlich abgesetzt ist und das zweite Verbindungselementteil (7b) vom Typ automatischer Verbinder, am Ende des ersten abschließenden starren Leitungselements (2a) der auf dem Meeresgrund aufliegenden Leitung (2), das mit dem Sockel (4) fest verbunden ist, auch gegenüber der Öffnung (4a) des Sockels sowie gegenüber der Trag- und Verbindungsvorrichtung (5), deren Verankerungseinsatz in den ersten Verankerungspfahl (6) eingefügt ist, abgesetzt ist.
  7. Einrichtung zur Grund-Oberflächen-Verbindung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das abschließende Trägheitsübergangsleitungselement (8) eine zylindrokonische Form aufweist, wovon:
    - das schlankste obere Ende des Übergangsteils einen Innendurchmesser (d1) sowie eine Dicke aufweist, die im wesentlichen gleich dem Innendurchmesser und der Dicke des unteren Endes des vertikalen Risers, mit dem es verbunden ist, sind, und
    - das untere Ende des Übergangsteils, auf der Seite des ersten Befestigungsflansches (9a), einen Innendurchmesser (d1), der im wesentlichen gleich demjenigen des unteren Endes des vertikalen Risers ist, aber eine Dicke (D4-d1) aufweist, die größer als das, vorzugsweise gleich dem 3- bis 10-fache(n) derjenigen des unteren Endes des vertikalen Risers ist.
  8. Einrichtung zur Grund-Oberflächen-Verbindung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß das abschließende Trägheitsübergangsleitungselement (8) ein starres Hauptleitungselement (8a) sowie wenigstens ein, vorzugsweise eine Vielzahl (n) von koaxialen Verstärkungsleitungselementen (8b-8d), die zu dem Hauptleitungselement (8a) koaxial angeordnet sind, umfaßt, wobei jedes Verstärkungsleitungselement (8b-8d) einen Innendurchmesser (di+1) aufweist, der größer ist als der Außendurchmesser (D1, Di) des Hauptleitungselements und gegebenenfalls als das (die) andere(n) Verstärkungsleitungselement(e), das (die) es enthält, wobei die verschiedenen Hauptleitungselemente (8a) und Verstärkungsleitungselement(e) (8b-8d) mit einem ihrer Enden, das auf gleicher Ebene gelegen ist, entlang der Richtung der Symmetrieachse (Z1Z'1) der Leitungselemente positioniert ist (sind), und wobei jedes Verstärkungsleitungselement (8b-8d) eine Länge (hi-1, mit i = 2 bis n) aufweist, die kleiner ist als die von h1 des Hauptleitungselements und gegebenenfalls die der anderen Verstärkungsleitungselemente (hi+1), die es enthält, wobei der ringförmige Raum (Di - di+1) zwischen den verschiedenen Leitungselementen mit einem festen Füllmaterial (8e) ausgefüllt ist, und die verschiedenen Hauptleitungselemente (8a) und koaxialen Verstärkungsleitungselemente (8b-8d) an einer gleichen unteren Platte (9a), welche von einem ersten Befestigungsflansch (9a) gebildet ist, befestigt sind.
  9. Einrichtung zur Grund-Oberflächen-Verbindung nach Anspruch 8, dadurch gekennzeichnet, daß:
    - der ringförmige Raum mit einem gleichen festen Füllmaterial, das vorzugsweise ein elastomeres Material, weiterhin vorzugsweise auf der Basis von Polyurethan, mit einer Shore-Härte größer oder gleich A50, weiterhin bevorzugt von A50 bis D70 umfaßt, vollständig ausgefüllt ist und
    - das Trägheitsübergangselement mit einem korrosionsbeständigen, elastomeren Deckmaterial, vorzugsweise vom Typ Polyurethan überzogen ist, wobei das abschließende Trägheitsübergangsleitungselement aufgrund seiner Beschichtung mit dem Deckmaterial eine im wesentlichen zylindrokonische Form aufweist.
  10. Einrichtung zur Grund-Oberflächen-Verbindung nach einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, daß das Deckmaterial und das Füllmaterial ein gleiches elastomeres Material vorzugsweise auf der Basis von Polyurethan umfassen, vorzugsweise das feste Füllmaterial ein Polyurethan mit einer Shore-Härte A90 oder A95 aufweist.
  11. Einrichtung zur Grund-Oberflächen-Verbindung nach einem der Ansprüche 8 oder 10, dadurch gekennzeichnet, daß das Füllmaterial ein mit partikelförmigem Material, vorzugsweise Sand beladenes Elastomer umfaßt.
  12. Einrichtung zur Grund-Oberflächen-Verbindung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß die Länge des Hauptleitungselements (8a) 10 bis 50 m, vorzugsweise 20 bis 30 m beträgt und es 2 oder 3 der koaxialen Verstärkungselemente (8b-8d) umfaßt.
  13. Einrichtung zur Grund-Oberflächen-Verbindung nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, daß die Hauptleitungselemente (8a) und koaxialen Verstärkungsleitungselemente (8b-8d) jeweils von einem ganzen Einzelelement einer Standardleitung, insbesondere Standardunterwasserleitung aus Stahl, oder einem Teil hiervon, oder jeweils von mehreren Einzelelementen einer Standardleitung gebildet sind, die stumpf miteinander verbunden und vorzugsweise durch Zentrierkeile, welche entlang ihrer Längsrichtung und über den Kreisquerschnitt in ihren ringförmigen Räumen gleichmäßig verteilt sind, koaxial gehalten sind.
  14. Verfahren zum Anbringen einer Einrichtung zur Grund-Oberflächen-Verbindung nach einem der Ansprüche 1 bis 13, am Meeresgrund (3), dadurch gekennzeichnet, daß es die folgenden aufeinanderfolgenden Schritte umfaßt, bei denen:
    1/ eine Verankerungsvorrichtung (5) auf den Meeresgrund hinabgelassen wird und
    2/ eine starre Leitung (9), die einen vertikalen Riser bildet, hinabgelassen wird, die an ihrem oberen Ende direkt an einem Ende (10c) der flexiblen Leitung (10), welche einen Endabschnitt (10a) mit positivem Auftrieb aufweist, befestigt ist, wobei das andere Ende (10e) der flexiblen Leitung (10) an einem oberflächennahen Schwimmer (21) aufgehängt ist, und
    3/ das untere Ende des Übergangsteils (8) im Bereich der Verankerungsvorrichtung (5) durch Einstecken befestigt wird, und
    4/ das an dem Schwimmer aufgehängte Ende (10e) der flexiblen Leitung bewegt wird und an einem schwimmenden Träger (12) befestigt oder hiermit verbunden wird.
  15. Verfahren nach Anspruch 14, zum Anbringen einer Einrichtung zur Grund-Oberflächen-Verbindung nach einem der Ansprüche 3 bis 14, dadurch gekennzeichnet, daß die folgenden aufeinanderfolgenden Schritte durchgeführt werden, bei denen:
    1/ ein Sockel (4), der mit einem ersten starren Leitungselement (2a) fest verbunden ist, auf den Meeresgrund hinabgelassen wird, wobei der Sockel (4) eine durchgehende Öffnung (4a) aufweist, und
    2/ ein erster rohrförmiger Verankerungspfahl (6) auf den Meeresgrund hinabgelassen wird, der durch die Öffnung (4a) des Sockels hindurch in den Meeresgrund eingetrieben wird, um den Sockel am Meeresgrund zu verankern, und
    3/ die den vertikalen Riser bildende starre Leitung (9), die an ihrem oberen Ende direkt an einer flexiblen Leitung befestigt ist, von einem Überwasserschiff (20) aus auf den Meeresgrund hinabgelassen wird, wobei das Übergangsteil (8) am unteren Endes des Risers an einer Trag- und Verbindungsvorrichtung (5), die ein zweites gekrümmtes, starres Leitungselement (5b) sowie einen Verankerungseinsatz (5e) trägt, befestigt ist, und
    4/ die Trag- und Verbindungsvorrichtung (5) unter Einfügen des Verankerungseinsatzes (5e) in den ersten rohrförmigen Pfahl (6) an dem Sockel befestigt wird, und
    5/ vorzugsweise der Verankerungseinsatz (5e) in dem ersten rohrförmigen Pfahl (6) mit Hilfe einer Blockiervorrichtung (4b) verriegelt wird, und
    6/ die Verbindung des ersten starren Leitungselements (2a) und des zweiten gekrümmten, starren Leitungselements (5b) vollzogen wird, und
    7/ schließlich die flexible Leitung, die einen Endabschnitt mit positivem Auftrieb aufweist, hinabgelassen wird, wobei das andere Ende (10e) der flexiblen Leitung an einem oberflächennahmen Schwimmer (21) aufgehängt ist, und
    8/ das andere Ende (10e) der flexiblen Leitung bewegt, dann an einem schwimmenden Träger (12) befestigt oder hiermit verbunden wird.
EP09745928A 2008-04-24 2009-04-14 Boden-oberfläche-verbindung aus einem starren steigrohr mit flexiblem kanal mit positiver flotation Active EP2286056B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0852771A FR2930587A1 (fr) 2008-04-24 2008-04-24 Installation de liaison fond-surface d'une conduite rigide avec une conduite flexible a flottabilite positive et une piece de transition d'inertie
PCT/FR2009/050684 WO2009138609A2 (fr) 2008-04-24 2009-04-14 Installation de liaison fond-surface d'une conduite rigide avec une conduite flexible a flottabilite positive

Publications (2)

Publication Number Publication Date
EP2286056A2 EP2286056A2 (de) 2011-02-23
EP2286056B1 true EP2286056B1 (de) 2012-07-25

Family

ID=39926529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09745928A Active EP2286056B1 (de) 2008-04-24 2009-04-14 Boden-oberfläche-verbindung aus einem starren steigrohr mit flexiblem kanal mit positiver flotation

Country Status (5)

Country Link
US (1) US8430170B2 (de)
EP (1) EP2286056B1 (de)
BR (1) BRPI0911162B1 (de)
FR (1) FR2930587A1 (de)
WO (1) WO2009138609A2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007108672A1 (en) * 2006-03-22 2007-09-27 Itrec B.V. Pre-assembly of a subsea base and pipeline
US20110017463A1 (en) * 2009-07-23 2011-01-27 Schlumberger Technology Corporation Use of a spoolable compliant guide and coiled tubing to clean up a well
FR2952671B1 (fr) * 2009-11-17 2011-12-09 Saipem Sa Installation de liaisons fond-surface disposees en eventail
GB0920640D0 (en) 2009-11-25 2010-01-13 Subsea 7 Ltd Riser configuration
US8657012B2 (en) * 2010-11-01 2014-02-25 Vetco Gray Inc. Efficient open water riser deployment
FR2971322B1 (fr) 2011-02-03 2014-05-02 Saipem Sa Limiteur de courbure de ligne flexible sous-marine et installation de liaison fond-surface en comprenant
FR2973473B1 (fr) 2011-03-29 2014-06-13 Saipem Sa Materiau d'isolation thermique et/ou de flottabilite rigide pour conduite sous-marine
US9334695B2 (en) * 2011-04-18 2016-05-10 Magma Global Limited Hybrid riser system
US9109725B2 (en) * 2011-09-09 2015-08-18 Horton Wison Deepwater, Inc. Conductor bend restrictor
US8863682B2 (en) 2011-09-09 2014-10-21 Horton Wison Deepwater, Inc. Helical bend restrictor
FR2988424B1 (fr) 2012-03-21 2014-04-25 Saipem Sa Installation de liaisons fond-surface de type tour hybride multi-risers comprenant des conduites flexibles a flottabilite positive
US8919448B2 (en) * 2012-04-13 2014-12-30 Mitchell Z. Dziekonski Modular stress joint and methods for compensating for forces applied to a subsea riser
BR102013012413B1 (pt) * 2013-05-20 2021-09-08 Petróleo Brasileiro S.A. / Petrobras Sistema de transferência híbrido reverso
CN104329044A (zh) * 2014-10-09 2015-02-04 中国海洋石油总公司 自由站立式立管底部连接结构
US10253583B2 (en) * 2015-12-21 2019-04-09 Halliburton Energy Services, Inc. In situ length expansion of a bend stiffener
CA3017677A1 (en) * 2016-06-01 2017-12-07 Terves Inc. Dissolvable rubber
US11313179B2 (en) 2018-03-26 2022-04-26 Odebrecht Oleo E Gas S.A. System for connecting between risers of composite material and flowlines, which can be used with a hybrid riser, and method for constructing same
US11009151B2 (en) * 2019-09-06 2021-05-18 Trinity Bay Equipment Holdings, LLC Vertical pipe deployment system and method
US10794539B1 (en) 2019-12-05 2020-10-06 Sofec, Inc. Systems and processes for recovering a vapor from a vessel
US11459067B2 (en) 2019-12-05 2022-10-04 Sofec, Inc. Systems and processes for recovering a condensate from a conduit
US10899602B1 (en) * 2019-12-05 2021-01-26 Sofec, Inc. Submarine hose configuration for transferring a gas from a buoy

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181612A (en) * 1961-07-07 1965-05-04 Dow Chemical Co Selective plugging of subterranean formations to inhibit intrusion of water into oil-producing strata
US3363683A (en) * 1965-12-23 1968-01-16 Exxon Production Research Co Offshore apparatus and method
US3602319A (en) * 1969-09-26 1971-08-31 Global Marine Inc Structure with varying cross-sectional moment of inertia
FR2397084A1 (fr) * 1977-07-06 1979-02-02 Inst Francais Du Petrole Embout de ligne flexible a raideur determinee variable
US4182584A (en) * 1978-07-10 1980-01-08 Mobil Oil Corporation Marine production riser system and method of installing same
FR2616858B1 (fr) * 1987-06-18 1989-09-01 Inst Francais Du Petrole Element a raideur variable pour pied de colonne de transfert
FR2627542A1 (fr) * 1988-02-24 1989-08-25 Coflexip Dispositif de transfert de fluide entre le fond sous-marin et la surface
US5526846A (en) * 1990-12-26 1996-06-18 Coflexip Stiffener with reinforced structure
US5320175A (en) * 1993-01-29 1994-06-14 Shell Oil Company Subsea wellhead connections
US5582252A (en) 1994-01-31 1996-12-10 Shell Oil Company Hydrocarbon transport system
US5520422A (en) * 1994-10-24 1996-05-28 Ameron, Inc. High-pressure fiber reinforced composite pipe joint
FR2741696B1 (fr) * 1995-11-29 1998-01-02 Coflexip Raidisseur pour une canalisation flexible a usage en milieu marin
US5944448A (en) 1996-12-18 1999-08-31 Brovig Offshore Asa Oil field installation with mooring and flowline system
US5873677A (en) * 1997-08-21 1999-02-23 Deep Oil Technology, Incorporated Stress relieving joint for riser
FR2768457B1 (fr) * 1997-09-12 2000-05-05 Stolt Comex Seaway Dispositif de transport sous-marin de produits petroliers a colonne montante
EP0911482B1 (de) * 1997-10-27 2004-10-20 Deep Oil Technology, Incorporated Zugentlastungsverbindung für Steigrohre
GB9802421D0 (en) * 1998-02-06 1998-04-01 Head Philip A riser system for sub sea wells and method of operation
NO306826B1 (no) * 1998-06-12 1999-12-27 Norske Stats Oljeselskap Anordning ved stigerör
US7287598B2 (en) * 2000-06-02 2007-10-30 Allis-Chalmers Energy, Inc. Apparatus for, and method of, landing items at a well location
WO2002094650A1 (en) * 2001-05-22 2002-11-28 Fmc Technologies, Inc. Hybrid buoyant riser/tension mooring system
FR2826051B1 (fr) * 2001-06-15 2003-09-19 Bouygues Offshore Installation de liaison fond-surface d'une conduite sous-marine reliee a un riser par au moins un element de conduite flexible maintenu par une embase
FR2839542B1 (fr) * 2002-05-07 2004-11-19 Bouygues Offshore Installation de liaison fond-surface d'une conduite sous- marine comprenant un element de conduite coude maintenu par une embase
AU2003270284A1 (en) 2002-10-10 2004-05-04 Rockwater Limited A riser and method of installing same
FR2852677B1 (fr) 2003-03-18 2006-01-06 Saipem Sa Dispositif de rechauffage et d'isolation thermique d'au moins une conduite sous-marine
US7096940B2 (en) * 2003-10-20 2006-08-29 Rti Energy Systems, Inc. Centralizer system for insulated pipe
US20070044972A1 (en) * 2005-09-01 2007-03-01 Roveri Francisco E Self-supported riser system and method of installing same
FR2911907B1 (fr) * 2007-01-26 2009-03-06 Technip France Sa Installation de conduite montante flexible de transport d'hydrocarbures.
US7628568B2 (en) * 2007-01-29 2009-12-08 Chevron U.S.A. Inc. Hinge-over riser assembly
WO2008144328A1 (en) * 2007-05-17 2008-11-27 Chevron U.S.A. Inc. Stab and hinge-over pipeline end terminal assembly

Also Published As

Publication number Publication date
EP2286056A2 (de) 2011-02-23
US8430170B2 (en) 2013-04-30
US20110042094A1 (en) 2011-02-24
WO2009138609A2 (fr) 2009-11-19
BRPI0911162A2 (pt) 2015-10-06
BRPI0911162B1 (pt) 2019-08-27
WO2009138609A3 (fr) 2010-05-20
FR2930587A1 (fr) 2009-10-30

Similar Documents

Publication Publication Date Title
EP2286056B1 (de) Boden-oberfläche-verbindung aus einem starren steigrohr mit flexiblem kanal mit positiver flotation
EP2844820B1 (de) Installation mit meeresboden-zu-oberfläche-verbindungen vom typ eines multi-riser-hybridturms mit flexiblen rohren mit positivem auftrieb
EP1899219B1 (de) Vorrichtung zur übergabe von fluiden zwischen zwei schwemmenden plattformen
EP1501999B1 (de) Meeresboden/flächen-verbindungsinstallation für eine unterwasserrohrleitung, die durch mindestens ein durch eine basis gestütztes rohrkniestück mit einem steigrohr verbunden ist
EP1073823B1 (de) Verfahren und vorrichtung zur bildung einer verbindung zwischen meeresgrund und oberfläche mittels einer in grosser tiefe installierten unterwasserleitung
EP1917416B1 (de) Anlage mit mindestens zwei meeresbodenflächensteckern für mindestens zwei auf dem meeresboden liegende unterwasserpipelines
EP2401468B1 (de) Meeresgrund-oberflächen-verbindungsinstallation der mehrfachsteigrohrhybridturmart mit gleitenden auftriebsmodulen
EP2268887B1 (de) Trägheitsübergangsrohrelement, insbesondere zur fixierung eines starren unterwasserrohrs
EP2501889B1 (de) Anlage aus fächerförmig angeordneten grund-oberflächen-verbindungen
EP2785952B1 (de) Vorrichtung für flexible und mannigfaltige verbindungen zwischen meeresgrund und oberfläche auf mindestens zwei ebenen
EP2153018B1 (de) Unterteil-oberflächen-verbindungsinstallation mit einer elastischen dämpfungsvorrichtung zur aufnahme der spannung des oberen endes einer unter der oberfläche befindlichen festen leitung
WO2011144864A1 (fr) Installation de liaison fond-surface comprenant une structure de guidage de conduite flexible
EP1509671B1 (de) Mehrfachkettenfahrleitung-steigrohr
EP3265642B1 (de) Anlage mit mindestens zwei unterflächigen verbindungen mit durch balken verbundenen vertikalen steigrohren
EP2640923B1 (de) Turm in einem wasserkörper zur erschliessung einer flüssigkeit und zugehöriges installationsverfahren
OA17101A (en) Installation de liaisons fond-surface de type tour hybride multi-risers comprenant des conduites flexibles à flottabilité positive.
FR3106644A1 (fr) Conduite pour l’alimentation d’une unité de production d’énergie hydrothermique.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101015

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 567812

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120815

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009008525

Country of ref document: DE

Effective date: 20120920

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 567812

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120725

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121025

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121125

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121026

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121126

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121105

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20130426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121025

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009008525

Country of ref document: DE

Effective date: 20130426

BERE Be: lapsed

Owner name: SAIPEM SA

Effective date: 20130430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130430

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131101

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602009008525

Country of ref document: DE

Effective date: 20131101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090414

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130414

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230517

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230419

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20240325

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240425

Year of fee payment: 16