EP2315905B1 - Device for mounting a flexible line on structure, and related equipment and method - Google Patents
Device for mounting a flexible line on structure, and related equipment and method Download PDFInfo
- Publication number
- EP2315905B1 EP2315905B1 EP09769480.6A EP09769480A EP2315905B1 EP 2315905 B1 EP2315905 B1 EP 2315905B1 EP 09769480 A EP09769480 A EP 09769480A EP 2315905 B1 EP2315905 B1 EP 2315905B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axial
- flexible line
- locking member
- configuration
- engaging
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000003100 immobilizing effect Effects 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims 2
- 239000003351 stiffener Substances 0.000 description 15
- 238000005096 rolling process Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
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- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
- E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
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- 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
- 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
- E21B43/0107—Connecting of flow lines to offshore structures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- the present invention relates to a device for mounting a flexible line on a structure, according to the preamble of claim 1.
- Such mounting devices are used in hydrocarbon exploitation facilities on a body of water, comprising for example a rigid structure fixed on the seabed, an oscillating structure attached to the seabed or a floating structure such as a naval surface support, a semi-submersible platform, a floating vertical column, or a ship.
- the flexible line to be mounted on the structure is, for example, a flexible upstream fluid transport pipe, designated by the English term “riser”.
- the term "flexible conduits” refers to those described in the normative documents published by the American Petroleum Institute (API), API 17J and API RP 17 B and well known to those skilled in the art. More generally, the flexible line may be a bundle type composite beam, a set of umbilicals or electric cables.
- a mounting device of the aforementioned type is used during the installation and connection of the flexible line on the surface structure.
- the flexible line is guided on the structure by introducing it through a hollow rigid tube integral with the vertically oriented structure which constitutes a protective sleeve.
- the hollow tube is for example of the "I-tube” or "J-tube” type.
- the flexible line is connected to the surface installation.
- a curvature limiter suitable locally imposing a radius of curvature greater than the minimum radius of curvature that can occupy the flexible line.
- curvature limiter is understood to mean both the curvature limiters consisting for example of articulated rigid elements called “vertebrae", the stiffeners constituted for example by molded blocks made of plastic material, as well as the combinations of these. elements.
- a stiffener is for example arranged around the flexible line near its upper end to cooperate with the hollow tube during the insertion of the flexible line into the tube.
- the stiffener and the flexible line are moved jointly towards the lower end of the hollow tube until the partial insertion of the stiffener in the hollow tube. Then, in a second step, the flexible line is moved upwardly relative to the stiffener to go up through the hollow tube for its connection to the surface structure.
- the stiffener is held motionless in translation in the hollow tube by embedding and / or fixing by means of clamps.
- traction systems using at least two separate winches are known.
- the cable of a first winch is connected to the stiffener for its ascent to the lower end of the hollow tube and the cable of a second winch is connected to the upper end of the flexible line to move it relative to the stiffener.
- Such a system requires a Precise control of cable recovery and is therefore not easy to use, especially when the hollow tube is bent.
- the stiffener and the flexible line move together. Then, the stiffener is attached to the lower end of the tube. Sufficient traction is then applied upwardly on the flexible line to break the breakable pin to allow upward movement of the flexible line relative to the stiffener.
- US 4,943,188 describes a device for mounting a platform leg.
- WO 2006/041904 describes a device for fixing a flexible line on a floating structure.
- An object of the invention is to obtain a device for mounting a flexible line on a structure that is simple to use, and which reduces the risk of damage to the flexible line.
- the subject of the invention is a device according to claim 1.
- the device according to the invention may comprise one or more of the features of claims 2 to 9.
- the invention also relates to a fluid exploitation installation, according to claim 10.
- the invention may include the feature of claim 11.
- the invention also relates to a mounting method according to claim 12.
- FIGS. 1 to 6 illustrate a fluid exploitation installation 10 according to the invention.
- This installation is for example intended to collect a fluid, in particular a hydrocarbon taken from the bottom 12 of a body of water 14, or to transfer this hydrocarbon to a transport vessel.
- the installation 10 comprises a structure 16 floating on the body of water 14, a flexible line 18 intended to be connected to the floating structure 16, and a first device 20 for mounting the flexible line 18 on the structure 16.
- the body of water 14 is for example a lake, a sea or an ocean.
- the depth of the water extent to the right of the floating structure 16 is for example between 15 m and 3000 m.
- the floating structure 16 is for example a naval surface support, a semi-submersible platform, a floating vertical column, or a ship.
- the structure 16 is a fixed rigid structure of "jacket” type or an oscillating structure attached to the seabed.
- the floating structure 16 has an upper surface 22 on which is mounted an operating winch 24 of the flexible line 18 and a manifold ("manifold" in English) adapted to connect one end of the flexible line 18.
- the winch 24 comprises a single deployable cable 28 for pulling the flexible line 18.
- the flexible line 18 is, in the example shown on the Figure 1 , a flexible tubular conduit 30 for fluid transport internally defining a fluid circulation passage.
- This pipe is also called rising pipe or “riser”, and is intended to connect a wellhead located on the bottom 12 of the body of water manifold ("manifold" in English) 26 located on the surface 22 of the floating structure 16.
- the flexible line 18 is, for example, an umbilical composite or "Integrated service umbilical” (ISU) or IPB well known to those skilled in the art and described in the normative documents published by the American Petroleum Institute (API ) API RP 17 B section 4.3.4.
- the flexible line may be a bundle of electrical cables.
- the pipe 30 has, at its upper end 32, a head 33 connecting to the working line to the cable 28.
- the head 33 comprises a connecting sleeve 34 fixed to the upper end of the pipe 30 and an eyelet 35 insertion of the lower end of the working line to the cable 28, rotatably mounted on an upper portion of the sleeve 34 about a circulation axis XX 'of the line 18.
- the sleeve 34 delimits, in its lower part, an annular channel 36 extending circumferentially around the axis X-X 'and opening radially away from the axis X-X'.
- the pipe 30 is for example unrolled and immersed in the body of water 14 from a laying vessel on the surface and is stored on the bottom 12 of the body of water 14, then the end of the pipe 30 (section not placed on the seabed) is abandoned on the bottom 14 via a drop cable.
- the mounting device 20 comprises a hollow rigid tube 40 guiding and protecting the tubular line 18, integral with the installation 16, a local limiter 42 of curvature of the line 18, engaged around the line 18 away the upper end 32, and means 44 for fixing the curvature limiter 42 to the lower end of the hollow rigid tube 40.
- the mounting device 20 further comprises releasable means 46 for axially immobilizing the flexible line 18 in the curvature limiter 42.
- the hollow rigid tube 40 is, in the example shown on the Figure 1 , a "J-tube" which has a vertically upright upper part and a bent lower end.
- the hollow rigid tube 40 is a straight tube type "I-tube"
- the tube 40 comprises a hollow vertical sleeve 50, integral with the floating structure 16, and a lower end flange 52 located at the lower end 54 of the sleeve 50.
- the sleeve 50 delimits an interior passage which opens into the body of water 14 at the lower end 54 and which opens at its upper end 56 in the vicinity of the upper surface 22 of the structure, above the extension of the body. water 14.
- the end flange 52 is immersed in the body of water 14. It has a truncated cone shape converging upwards. It is attached to a fixing flange located at the lower end 54 of the sleeve 50. flange 52 flares downward to a lower flange 58 for supporting the fastening means 44, visible on the Figure 5 .
- the curvature limiter 42 comprises, from bottom to top on the figures 2 and 3 , a rigid lower assembly 62 and an articulated upper assembly 64 attached to the flexible lower assembly 62.
- the lower flexible assembly 62 comprises a stiffening block 66 and an intermediate clamping flange 68 on the hollow rigid tube 40.
- the lower block 66 is for example molded from a plastic material such as polyurethane. It has a frustoconical shape converging downwards.
- the flange 68 is attached to the top of the block 66. It has a peripheral flange which protrudes radially away from the axis X-X 'with respect to the stiffening block 66.
- the articulated upper assembly 64 includes a plurality of tubular vertebrae 70A, 70B assembled axially end-to-end through annular collars 72.
- the lower vertebra 70A is fixed on a bracket 74 carried by the flange 68 via an annular collar 72.
- the vertebrae 70A, 70B are slightly movable relative to each other between a linear configuration along the X-X 'axis and a slightly curved configuration with respect to the linear configuration.
- the block 66, the flange 68 and the vertebrae 70A, 70B internally delimit a central lumen 76 of circulation of the flexible line 18 which defines the axis XX 'of circulation of the line 18 in the curvature limiter 42, coinciding with the longitudinal axis of line 18.
- the lumen 76 is of cross section substantially conjugated to the outer transverse section of the line 18.
- the blocks 66 and the vertebrae 70A, 70B thus impose locally on the flexible line 18 a radius of curvature greater than the minimum radius of curvature that could occupy the flexible line 18.
- the curvature limiter 42 is movable between a disassembled position represented on the figure 1 , in which it is placed away from the hollow rigid tube 40, and a position mounted on the hollow rigid tube 40, represented on the Figures 5 and 6 , in which the intermediate flange 68 of the limiter 42 is fixed on the lower support flange 58, at the lower end of the flange 52.
- the fixing means 44 comprise an annular collar 78 for holding the intermediate flange 68 against the lower flange 58.
- the means 46 of axial immobilization in a first direction of the curvature limiter 42 on the flexible line 18 are formed by a reversible rotary latch, designated by the English term "rotolatch”.
- These axial immobilization means 46 thus comprise a rotational locking member 90, axially integral with the line 18, and an engagement member 92 of the locking member 90, mounted axially integral with the curvature limiter 42.
- the locking member 90 comprises a rotary bell 94 and a plurality of transverse projections 96 which extend radially towards the axis X-X 'in the rotary bell 94.
- the bell 94 has an upper annular wall 96 rotatably mounted relative to the line 18 about the axis X-X 'in the groove 36, and a substantially cylindrical side wall 98 opening downwards.
- the locking member 90 is thus mounted axially fixed with respect to the flexible line 18, while being freely rotatably mounted about the axis X-X '.
- the upper annular wall 96 and the side wall 98 internally define a housing 100 for receiving the engagement member 92.
- the housing 100 extends along the axis X-X 'and opens downwards.
- the locking member 90 comprises a plurality of retaining projections 96, angularly distributed about the axis X-X '.
- Each projection 96 extends radially towards the axis X-X 'in the receiving housing 100, from the side wall 98, in the vicinity of the lower edge of the bell 94.
- Each projection 96 comprises a pin 102 fixed in the side wall 98 and a rolling roller 104 rotatably mounted about a radial axis at the free end of the pin 102.
- Each rolling roller 104 defines an outer surface 105 rolling on the commitment agency 92.
- the engagement member 92 comprises a ring 106 mounted axially fixed and rotatably mounted about the axis XX 'at the upper end of the vertebrae 70.
- the ring 106 delimits a plurality of upper stops 108 axially retaining projections 96, and an annular abutment 110 for guiding the projections 96.
- the ring 106 comprises a substantially cylindrical sleeve 112 of axis X-X 'and a lower collar 114 for attachment to the upper vertebra 70B which extends the sleeve 112 downwards.
- the flange 114 is attached to the upper vertebra 70B through an annular clamp 116 clamping.
- the upper retention stops 108 protrude radially away from the axis XX 'towards the rotary bell 94, from an outer surface of the sleeve 112. They are angularly distributed around the axis XX' on a circumference of the sleeve 112, being angularly spaced from one another.
- each upper stop 108 has a polygonal contour.
- Each abutment 108 thus defines an upper edge 120 convex upwards and in the shape of a point, a lower edge 122 concave upwards and delimiting a main groove 124 for engaging a projection 96, and two lateral edges 126A, 126B. extending substantially parallel to the axis X-X '.
- Each passage 128 opens axially upwards in a first direction, between the upper edges 120 of two adjacent upper stops 108 and axially downwards in a second direction opposite to the first direction, in the vicinity of the groove 124.
- the groove 124 is closed axially upward in the first direction and opens axially downwardly in a second direction. It has an inverted V-shaped section.
- the lower guide stop 110 protrudes radially away from the axis XX 'from the outer surface of the sleeve 112. It extends under the retaining stops 108. It delimits a plurality of teeth 130 which protrude upward in the first direction from a full 132 annular base.
- the teeth 130 define between them, facing each main groove 124, two secondary guide grooves 134A, 134B.
- the grooves 134A, 134B are closed in the second direction downwards and open in the first direction upwards facing the main groove 124.
- Each groove 134A, 134B is delimited to the left by the inclined lateral surface 136 of a first tooth 130, and is delimited to the right by a straight surface 138 of an adjacent tooth 130 to the first tooth 130.
- the left groove 134A partially opens along the inclined surface 136 opposite a passage 128 for insertion and extraction, located to the left of the stop 108.
- the right groove 134B opens partially opposite a passage of insertion and extraction 128 located to the right of the stop 108.
- Each upper stop 108 and the lower stop 122 thus define between them a circulation passage of a projection 96 which has substantially a shape of W.
- the locking member 90 is movable along the axis XX 'of circulation with respect to the engagement member 92 in the second direction, between a first disengaged axial position, represented on the Figure 4 (a) in which the locking member 90 and the engagement member 92 are axially distant from one another, and an axial position of engagement of the locking member 90 in the engagement member 92, represented on the Figure 4 (c) in which the locking member 90 is brought closer to the engagement member 92 and the projections 96 abut against the bottom of the secondary guide grooves 134A.
- the locking member 90 is further movable in the first direction upwards along the axis XX 'to an engaged axial position, represented on the Figure 4 (e) located axially between the first disengaged axial position and the axial engagement position, in which each projection 96 is placed at the bottom of a main groove 124.
- the locking member 90 is moreover rotatable about the axis XX 'with respect to the engagement member 92 and with respect to the line 18 between a first circulation configuration of the line flexible 18 through the curvature limiter 42 ( Figure 4 (a) ) and an axial immobilization configuration in the first direction of the flexible line 18 on the curvature limiter 42 ( Figure 4 (e) ).
- the immobilizing means 46 may comprise a releasable locking member (not shown) of the locking member 90 with respect to the engagement member 92, in translation in the axial position engaged and in rotation in the configuration.
- This locking member is for example a screw or pin can be placed and released without mechanical breakage of the locking member by a remotely controlled vehicle (designated by the acronym "ROV").
- ROV remotely controlled vehicle
- the locking member 90 is movable downwards along the axis XX 'with respect to the engagement member 92, between the engaged position and a release position, represented on the Figure 4 (g) wherein the projections 96 are abutted in secondary grooves 134B adjacent to the grooves 134A, and upwardly to a second disengaged axial position shown in FIG. Figure 4 (i) .
- the locking member 90 is rotatable around the engagement member 92 between the axial immobilization configuration in a first direction and a second axial circulation configuration of the flexible line 18 through the curvature limiter 42, angularly offset relative to the first axial circulation configuration, without mechanical failure of a connecting member between the engagement member 92 and the locking member 90.
- a curvature limiter 42 is engaged around the line 18, away from the upper end 32.
- the line 18 is inserted into the lumen 76 through successively the lower block 66, the intermediate flange 68 and the vertebrae 70A, 70B. Then, the connecting head 33, on which is rotatably mounted the locking member 90, is fixed axially and angularly on the line 18, at the upper end 32 of the pipe 30.
- each rolling roller 104 abuts against the upper edge 120 of a stop 108 and is guided to an insertion passage 128.
- the locking member 90 and the engagement member 92 then occupy the first axial flow configuration in the first direction of the flexible line 18 through the curvature limiter 42.
- each protrusion 96 descends into the passageway 128, then into the secondary groove 134A located opposite this passage, rolling downward along an inclined surface 136.
- the roller 104 then rolls on the convex lower edge 122 of the upper stop 108.
- the rolling of the roller 104 causes the rotational drive of the locking member 90 about the axis XX 'relative to the body of the commitment 92 up to the axial immobilization configuration shown on the Figure 4 (e) .
- each projection 96 is placed in a main groove 124 abuts against an upper limit stop 108. This immobilizes axially in the first direction the flexible line 18 in the limiter of curvature 42, especially when an upward pulling force is exerted on the line 18.
- the axial immobilization means 46 are thus activated.
- the line 18 is then immersed in the body of water 14.
- the winch 24 is activated to lower the cable 28 through the hollow rigid tube 40, then to connect the lower end of the cable 28 to the connection head 33 located at the upper end 32 of the line 18.
- the line 18 and the curvature limiter 42 are placed under the end flange 52 of the hollow rigid tube 40 to the distance from the tube 40.
- the winch 24 is then activated to raise the cable 28 towards the upper end 56 of the hollow rigid tube 40.
- the rise of the cable 28 causes the joint movement of the line 18 and the curvature limiter 42 towards the collar 52 to the intermediate position shown on the Figure 1 .
- the curvature limiter 42 is introduced partially into the rigid tube 40.
- the upper flexible assembly 64 is introduced into the end flange 52, until the intermediate flange 68 is pressed against the lower flange 58 of the flange.
- the collar 78 is then put in place around the flanges 58, 68 to immobilize the curvature limiter 42 axially with respect to the hollow tube 40.
- the vertebrae 70A, 70B being interconnected by flexible links, they adopt a slight curvature corresponding to the slightly curved shape of the lower end of the tube 40.
- the immobilizing means 46 are then released to allow the rise of the line 18 through the curvature limiter 42 and the tube 40.
- the winch 24 is controlled to move the connecting head 33 in the second direction downwards.
- each protrusion 96 then descends into the right groove 134B adjacent to the left groove 134A, being guided by the rolling of the roller 104 on the inclined surface 136 defining the groove 134B.
- the locking member 90 rotates about the axis X-X 'always in the same direction between the first circulation configuration, the axial immobilization configuration, and the second circulation configuration.
- the locking member 90 then moves away from the engagement member 92, causing the displacement of each projection 96 outside the right groove 134B and then along the right edge 126B of the upper stop 108 in the extraction passage 128 ( Figures 4 (h) and 4 (i) ).
- the locking member 90 then occupies an unobstructed axial position, located above the engagement member 92, wherein the engagement member 92 has been withdrawn from the housing 100.
- the line 18 is then raised through the central lumen 76 of the limiter 42 and through the circulation passage of the tube 40, to the manifold 26, the curvature limiter 42 remaining stationary relative to the tube 40.
- the line 18 is then connected to the collector 26.
- the releasable immobilizing means 46 formed by a rotary latch are therefore simply activated, to allow, by means of a single winch, a joint displacement of the curvature limiter 42 and the line 18 to the hollow rigid tube 40 Then, once the limiter 42 is fixed on the hollow rigid tube 40, the immobilization means are released reversibly, by a simple movement of the line 18, to allow the line 18 to go up through the curvature limiter. 42 and through the tube 40.
- the collar 78 of the fastening means 44 is then removed, to detach the curvature limiter 42 from the flange 52 and to jointly lower the line 18 and the curvature limiter 42 away from the hollow tube 40.
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Description
La présente invention concerne un dispositif de montage d'une ligne flexible sur une structure, selon le préambule de la revendication 1.The present invention relates to a device for mounting a flexible line on a structure, according to the preamble of claim 1.
De tels dispositifs de montage sont utilisés dans des installations d'exploitation d'hydrocarbures sur une étendue d'eau, comprenant par exemple une structure rigide fixée sur le fond de la mer, une structure oscillante assujettie au fond de la mer ou une structure flottante telle qu'un support naval de surface, une plateforme semi-submersible, une colonne verticale flottante, ou un navire.Such mounting devices are used in hydrocarbon exploitation facilities on a body of water, comprising for example a rigid structure fixed on the seabed, an oscillating structure attached to the seabed or a floating structure such as a naval surface support, a semi-submersible platform, a floating vertical column, or a ship.
La ligne flexible à monter sur la structure est par exemple une conduite flexible montante de transport de fluide, désignée par le terme anglais « riser ». On entend par « conduites flexibles » celles décrites dans les documents normatifs publiés par l'american Petroleum Institute (API), API 17J et API RP 17 B et bien connues de l'homme du métier. Plus généralement, la ligne flexible peut être un faisceau composite de type « bundle », un ensemble d'ombilicaux ou de câbles électriques.The flexible line to be mounted on the structure is, for example, a flexible upstream fluid transport pipe, designated by the English term "riser". The term "flexible conduits" refers to those described in the normative documents published by the American Petroleum Institute (API), API 17J and API RP 17 B and well known to those skilled in the art. More generally, the flexible line may be a bundle type composite beam, a set of umbilicals or electric cables.
Un dispositif de montage du type précité est utilisé lors de l'installation et du raccordement de la ligne flexible sur la structure en surface.A mounting device of the aforementioned type is used during the installation and connection of the flexible line on the surface structure.
A cet effet, pour réduire les risques d'endommagement de la structure et de la ligne flexible, il est connu d'immerger la ligne flexible dans l'étendue d'eau sous la structure en surface, et de la remonter jusqu'à la zone de raccordement située sur la structure en surface à l'aide d'un treuil. Un tel raccordement est désigné par le terme anglais « pull-in ».To this end, to reduce the risk of damage to the structure and the flexible line, it is known to immerse the flexible line in the body of water under the surface structure, and to go up to the connection area located on the surface structure using a winch. Such a connection is referred to as "pull-in".
La ligne flexible est guidée sur la structure en l'introduisant au travers d'un tube rigide creux solidaire de la structure orienté verticalement qui constitue une manche de protection. Le tube creux est par exemple du type « I-tube » ou « J-tube ».The flexible line is guided on the structure by introducing it through a hollow rigid tube integral with the vertically oriented structure which constitutes a protective sleeve. The hollow tube is for example of the "I-tube" or "J-tube" type.
A la sortie supérieure du tube, la ligne flexible est raccordée sur l'installation de surface.At the upper outlet of the tube, the flexible line is connected to the surface installation.
Pour éviter de détériorer la ligne flexible, notamment sous l'effet de l'agitation de l'eau susceptible de la faire entrer en contact avec la structure, il est connu de monter en prise autour de la ligne flexible, un limiteur de courbure apte à imposer localement un rayon de courbure supérieur au rayon de courbure minimal que peut occuper la ligne flexible.To avoid damaging the flexible line, especially under the effect of the agitation of the water likely to make contact with the structure, it is known to engage around the flexible line, a curvature limiter suitable locally imposing a radius of curvature greater than the minimum radius of curvature that can occupy the flexible line.
Dans la suite du texte, on entend par limiteur de courbure aussi bien les limiteurs de courbures constitués par exemple d'éléments rigides articulés appelés « vertèbres », les raidisseurs constitués par exemple par des blocs moulés en matière plastique, ainsi que les combinaisons de ces éléments.In the remainder of the text, the term curvature limiter is understood to mean both the curvature limiters consisting for example of articulated rigid elements called "vertebrae", the stiffeners constituted for example by molded blocks made of plastic material, as well as the combinations of these. elements.
Un raidisseur est par exemple disposé autour de la ligne flexible au voisinage de son extrémité supérieure pour coopérer avec le tube creux lors de l'insertion de la ligne flexible dans le tube.A stiffener is for example arranged around the flexible line near its upper end to cooperate with the hollow tube during the insertion of the flexible line into the tube.
A cet effet, dans un premier temps, le raidisseur et la ligne flexible sont déplacés conjointement vers l'extrémité inférieure du tube creux jusqu'à l'insertion partielle du raidisseur dans le tube creux. Puis, dans un deuxième temps, la ligne flexible est déplacée vers le haut par rapport au raidisseur pour la remonter à travers le tube creux en vue de son raccordement sur la structure de surface.For this purpose, in a first step, the stiffener and the flexible line are moved jointly towards the lower end of the hollow tube until the partial insertion of the stiffener in the hollow tube. Then, in a second step, the flexible line is moved upwardly relative to the stiffener to go up through the hollow tube for its connection to the surface structure.
Pendant cette deuxième phase, le raidisseur est maintenu immobile en translation dans le tube creux par encastrement et/ou fixation au moyen de colliers de serrage.During this second phase, the stiffener is held motionless in translation in the hollow tube by embedding and / or fixing by means of clamps.
Pour effectuer successivement ces deux étapes, on connaît des systèmes de traction utilisant au moins deux treuils distincts. Le câble d'un premier treuil est raccordé au raidisseur pour sa remontée vers l'extrémité inférieure du tube creux et le câble d'un deuxième treuil est raccordé à l'extrémité supérieure de la ligne flexible pour la déplacer par rapport au raidisseur. Un tel système nécessite un contrôle précis de la remontée des câbles et n'est donc pas simple à utiliser, particulièrement lorsque le tube creux est coudé.To perform these two steps successively, traction systems using at least two separate winches are known. The cable of a first winch is connected to the stiffener for its ascent to the lower end of the hollow tube and the cable of a second winch is connected to the upper end of the flexible line to move it relative to the stiffener. Such a system requires a Precise control of cable recovery and is therefore not easy to use, especially when the hollow tube is bent.
Pour pallier ce problème, il est connu de
Lors de la montée du raidisseur vers l'extrémité inférieure du tube creux, le raidisseur et la ligne flexible se déplacent conjointement. Puis, le raidisseur est fixé à l'extrémité inférieure du tube. Une traction suffisante est alors appliquée vers le haut sur la ligne flexible afin de rompre la goupille frangible pour permettre le déplacement vers le haut de la ligne flexible par rapport au raidisseur.When raising the stiffener towards the lower end of the hollow tube, the stiffener and the flexible line move together. Then, the stiffener is attached to the lower end of the tube. Sufficient traction is then applied upwardly on the flexible line to break the breakable pin to allow upward movement of the flexible line relative to the stiffener.
Un tel dispositif ne donne pas entière satisfaction. Ainsi, ce dispositif de l'art antérieur est complexe et nécessite une grande fiabilité des pièces mécaniques. En outre, une fois la goupille frangible rompue, il n'est plus possible de déconnecter la ligne de la structure, puis de la reconnecter à la même structure ou à une autre structure, sans réinstaller une goupille, ce qui nécessite une remontée de la ligne flexible et du raidisseur à la surface.Such a device does not give complete satisfaction. Thus, this device of the prior art is complex and requires great reliability of the mechanical parts. In addition, once the breakable pin is broken, it is no longer possible to disconnect the line of the structure, then reconnect to the same structure or another structure, without reinstalling a pin, which requires a recovery of the flexible line and stiffener on the surface.
Un but de l'invention est d'obtenir un dispositif de montage d'une ligne flexible sur une structure qui soit simple à utiliser, et qui diminue les risques de détérioration de la ligne flexible.An object of the invention is to obtain a device for mounting a flexible line on a structure that is simple to use, and which reduces the risk of damage to the flexible line.
A cet effet, l'invention a pour objet un dispositif selon la revendication 1.For this purpose, the subject of the invention is a device according to claim 1.
Le dispositif selon l'invention peut comprendre l'une ou plusieurs des caractéristiques des revendications 2 à 9.The device according to the invention may comprise one or more of the features of claims 2 to 9.
L'invention a également pour objet une installation d'exploitation de fluide, selon la revendication 10.The invention also relates to a fluid exploitation installation, according to
L'invention peut comprendre la caractéristique de la revendication 11.The invention may include the feature of claim 11.
L'invention a également pour objet un procédé de montage selon la revendication 12.The invention also relates to a mounting method according to
L'invention sera mieux comprise à la lecture qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés, sur lesquels :
- la
Figure 1 est une vue schématique, prise en coupe suivant un plan vertical médian, d'une installation d'exploitation de fluide, comprenant un premier dispositif de montage selon l'invention ; - la
Figure 2 est une vue en coupe partielle, prise suivant un plan transversal, des parties pertinentes des moyens d'immobilisation axiale de la ligne flexible dans le limiteur de courbure du dispositif de montage représenté sur laFigure 1 , lors de l'engagement des moyens d'immobilisation ; - la
Figure 3 est une vue analogue à laFigure 2 , lors de l'immobilisation axiale de la ligne flexible dans le limiteur de courbure ; - la
Figure 4 est une vue partielle en perspective de côté des saillies d'immobilisation et des butées correspondantes des moyens d'immobilisation représentés sur lesFigures 2 et3 , lors des étapes successives d'engagement, de verrouillage et de déverrouillage de la ligne flexible dans le limiteur de courbure ; - la
Figure 5 est une vue d'un détail de l'extrémité inférieure d'un tube rigide de protection du dispositif de montage selon l'invention, lorsque le limiteur de courbure est fixé sur ce tube - la
Figure 6 est une vue analogue à laFigure 1 lors de la circulation axiale de la ligne flexible dans le limiteur de courbure.
- the
Figure 1 is a schematic view, taken in section along a median vertical plane, of a fluid exploitation installation, comprising a first mounting device according to the invention; - the
Figure 2 is a partial sectional view, taken along a transverse plane, of the relevant parts of the axial immobilization means of the flexible line in the curvature limiter of the mounting device shown in FIG.Figure 1 during the engagement of the immobilization means; - the
Figure 3 is a view similar to theFigure 2 during the axial immobilization of the flexible line in the curvature limiter; - the
Figure 4 is a partial perspective side view of the immobilizing projections and the corresponding stops of the immobilization means represented on theFigures 2 and3 during the successive steps of engagement, locking and unlocking of the flexible line in the curvature limiter; - the
Figure 5 is a view of a detail of the lower end of a rigid protection tube of the mounting device according to the invention, when the curvature limiter is fixed on this tube - the
Figure 6 is a view similar to theFigure 1 during the axial circulation of the flexible line in the curvature limiter.
Les
L'installation 10 comprend une structure 16 flottant sur l'étendue d'eau 14, une ligne flexible 18 destinée à être raccordée sur la structure flottante 16, et un premier dispositif 20 de montage de la ligne flexible 18 sur la structure 16.The
L'étendue d'eau 14 est par exemple un lac, une mer ou un océan. La profondeur de l'étendue d'eau au droit de la structure flottante 16 est par exemple comprise entre 15 m et 3000 m.The body of
La structure flottante 16 est par exemple un support naval de surface, une plateforme semi-submersible, une colonne verticale flottante, ou un navire.The
En variante, la structure 16 est une structure rigide fixe de type « jacket » ou une structure oscillante assujettie au fond de la mer.Alternatively, the
La structure flottante 16 présente une surface supérieure 22 sur laquelle est monté un treuil de manoeuvre 24 de la ligne flexible 18 et un collecteur (« manifold » en anglais) 26 adapté pour le raccordement d'une extrémité de la ligne flexible 18.The
Le treuil 24 comprend un câble 28 unique déployable pour la traction de la ligne flexible 18.The
La ligne flexible 18 est, dans l'exemple représenté sur la
En variante, la ligne flexible 18 est par exemple un faisceau composite de type ombilical ou « Integrated service umbilical » (ISU) ou IPB bien connu de l'homme du métier et décrit dans les documents normatifs publiés par l'american Petroleum Institute (API) API RP 17 B paragraphe 4.3.4. En variante, la ligne flexible peut être un faisceau de câbles électriques.As a variant, the
La conduite 30 présente, à son extrémité supérieure 32, une tête 33 de raccordement à la ligne de travail au câble 28.The
Comme illustré par la
Le manchon 34 délimite, dans sa partie inférieure, une rigole annulaire 36 s'étendant circonférentiellement autour de l'axe X-X' et débouchant radialement à l'écart de l'axe X-X'.The
La conduite 30 est par exemple déroulée et immergée dans l'étendue d'eau 14 à partir d'un navire de pose en surface et est stockée sur le fond 12 de l'étendue d'eau 14, puis l'extrémité de la conduite 30 (section non posée sur le fond marin) est abandonnée sur le fond 14 via un câble d'abandon.The
Le dispositif de montage 20 comprend un tube rigide creux 40 de guidage et de protection de la ligne tubulaire 18, solidaire de l'installation 16, un limiteur local 42 de courbure de la ligne 18, engagé autour de la ligne 18 à l'écart de l'extrémité supérieure 32, et des moyens 44 de fixation du limiteur de courbure 42 à l'extrémité inférieure du tube rigide creux 40.The mounting
Selon l'invention, le dispositif de montage 20 comprend en outre des moyens libérables 46 d'immobilisation axiale de la ligne flexible 18 dans le limiteur de courbure 42.According to the invention, the mounting
Le tube rigide creux 40 est, dans l'exemple représenté sur la
Le tube 40 comprend un manchon vertical creux 50, solidaire de la structure flottante 16, et une collerette d'extrémité inférieure 52 située à l'extrémité inférieure 54 du manchon 50.The
Le manchon 50 délimite un passage intérieur qui débouche dans l'étendue d'eau 14 à l'extrémité inférieure 54 et qui débouche à son extrémité supérieure 56 au voisinage de la surface supérieure 22 de la structure, au-dessus de l'étendue d'eau 14.The
La collerette d'extrémité 52 est immergée dans l'étendue d'eau 14. Elle présente une forme de cône tronqué convergeant vers le haut. Elle est rapportée sur une bride de fixation située à l'extrémité inférieure 54 du manchon 50. La collerette 52 s'évase vers le bas jusqu'à une bride inférieure 58 de support des moyens de fixation 44, visible sur la
Le limiteur de courbure 42 comprend, de bas en haut sur les
L'ensemble inférieur flexible 62 comporte un bloc de rigidification 66 et une bride 68 intermédiaire de fixation sur le tube rigide creux 40.The lower
Le bloc inférieur 66 est par exemple moulé en une matière plastique telle que du polyuréthane. Il présente une forme tronconique convergeant vers le bas.The
La bride 68 est rapportée au dessus du bloc 66. Elle présente un rebord périphérique qui fait saillie radialement à l'écart de l'axe X-X' par rapport au bloc de rigidification 66.The
L'ensemble supérieur articulé 64 comprend une pluralité de vertèbres 70A, 70B tubulaires assemblées axialement bout à bout par l'intermédiaire de colliers annulaires 72.The articulated
La vertèbre inférieure 70A est fixée sur une équerre 74 portée par la bride 68 par l'intermédiaire d'un collier annulaire 72.The
Les vertèbres 70A, 70B sont déplaçables légèrement l'une par rapport à l'autre entre une configuration linéaire le long de l'axe X-X' et une configuration légèrement incurvée par rapport à la configuration linéaire.The
Le bloc 66, la bride 68 et les vertèbres 70A, 70B délimitent intérieurement une lumière centrale 76 de circulation de la ligne flexible 18 qui définit l'axe X-X' de circulation de la ligne 18 dans le limiteur de courbure 42, confondu avec l'axe longitudinal de la ligne 18.The
Dans le bloc 66 et dans les vertèbres 70A, 70B, la lumière 76 est de section transversale sensiblement conjuguée à la section transversale extérieure de la ligne 18.In the
Les blocs 66 et les vertèbres 70A, 70B imposent ainsi localement à la ligne flexible 18 un rayon de courbure supérieur au rayon de courbure minimal que pourrait occuper la ligne flexible 18.The
Comme on le verra plus bas, le limiteur de courbure 42 est mobile entre une position démontée représentée sur la
Les moyens de fixation 44 comprennent un collier annulaire 78 de maintien de la bride intermédiaire 68 contre la bride inférieure 58.The fixing means 44 comprise an
Selon l'invention, les moyens 46 d'immobilisation axiale dans un premier sens du limiteur de courbure 42 sur la ligne flexible 18 sont formés par un verrou rotatif réversible, désigné par le terme anglais « rotolatch ».According to the invention, the
Ces moyens d'immobilisation axiale 46 comprennent ainsi un organe rotatif de verrouillage 90, monté solidaire axialement de la ligne 18, et un organe d'engagement 92 de l'organe de verrouillage 90, monté solidaire axialement du limiteur de courbure 42.These axial immobilization means 46 thus comprise a
L'organe de verrouillage 90 comprend une cloche rotative 94 et une pluralité de saillies transversales 96 qui s'étendent radialement vers l'axe X-X' dans la cloche rotative 94.The locking
La cloche 94 présente une paroi annulaire supérieure 96 montée librement rotative par rapport à la ligne 18 autour de l'axe X-X' dans la rainure 36, et une paroi latérale 98 sensiblement cylindrique s'ouvrant vers le bas.The
L'organe de verrouillage 90 est ainsi monté fixe axialement par rapport à la ligne flexible 18, tout en étant monté librement rotatif autour de l'axe X-X'.The locking
La paroi annulaire supérieure 96 et la paroi latérale 98 délimitent intérieurement un logement 100 de réception de l'organe d'engagement 92. Le logement 100 s'étend le long de l'axe X-X' et débouche vers le bas.The upper
Dans l'exemple représenté, l'organe de verrouillage 90 comprend une pluralité de saillies de retenue 96, réparties angulairement autour de l'axe X-X'.In the example shown, the locking
Chaque saillie 96 s'étend radialement vers l'axe X-X' dans le logement de réception 100, à partir de la paroi latérale 98, au voisinage du bord inférieur de la cloche 94.Each
Chaque saillie 96 comprend un pion 102 fixé dans la paroi latérale 98 et un galet de roulage 104 monté rotatif autour d'un axe radial à l'extrémité libre du pion 102. Chaque galet de roulage 104 délimite une surface 105 extérieure de roulage sur l'organe d'engagement 92.Each
L'organe d'engagement 92 comprend une bague 106 montée fixe axialement et montée fixe en rotation autour de l'axe X-X' à l'extrémité supérieure des vertèbres 70. La bague 106 délimite une pluralité de butées supérieures 108 de retenue axiale des saillies 96, et une butée annulaire 110 inférieure de guidage des saillies 96.The
La bague 106 comprend un manchon sensiblement cylindrique 112 d'axe X-X' et une collerette inférieure 114 de fixation sur la vertèbre supérieure 70B qui prolonge le manchon 112 vers le bas.The
La collerette 114 est fixée sur la vertèbre supérieure 70B par l'intermédiaire d'un collier annulaire 116 de serrage.The
Les butées supérieures 108 de retenue font saillie radialement à l'écart de l'axe X-X' vers la cloche rotative 94, à partir d'une surface extérieure du manchon 112. Elles sont réparties angulairement autour de l'axe X-X' sur une circonférence du manchon 112, en étant espacées angulairement l'une de l'autre.The upper retention stops 108 protrude radially away from the axis XX 'towards the
Comme illustré par la
Les bords latéraux 126A, 126B en regard de chaque paire de butées supérieures 108 adjacentes délimitent entre eux des passages axiaux 128 d'insertion et d'extraction d'une saillie 96 dans la rainure 124.The lateral edges 126A, 126B opposite each pair of
Chaque passage 128 débouche axialement vers le haut dans un premier sens, entre les bords supérieurs 120 de deux butées supérieures adjacentes 108 et axialement vers le bas dans un deuxième sens opposé au premier sens, au voisinage de la rainure 124.Each
La rainure 124 est obturée axialement vers le haut dans le premier sens et débouche axialement vers le bas dans un deuxième sens. Elle présente une section en forme de V inversé.The
La butée inférieure de guidage 110 fait saillie radialement à l'écart de l'axe X-X' à partir de la surface extérieure du manchon 112. Elle s'étend sous les butées de retenue 108. Elle délimite une pluralité de dents 130 qui font saillie vers le haut dans le premier sens à partir d'une base annulaire 132 pleine.The lower guide stop 110 protrudes radially away from the axis XX 'from the outer surface of the
Les dents 130 délimitent entre elles, en regard de chaque rainure principale 124, deux rainures secondaires de guidage 134A, 134B.The
Les rainures 134A, 134B sont obturées dans le deuxième sens vers le bas et débouchent dans le premier sens vers le haut en regard de la rainure principale 124.The
Chaque rainure 134A, 134B est délimitée vers la gauche par la surface latérale inclinée 136 d'une première dent 130, et est délimitée vers la droite par une surface droite 138 d'une dent adjacente 130 à la première dent 130.Each
La rainure gauche 134A débouche partiellement le long de la surface inclinée 136 en regard d'un passage 128 d'insertion et d'extraction, situé à gauche de la butée 108. La rainure droite 134B débouche partiellement en regard d'un passage d'insertion et d'extraction 128 situé à droite de la butée 108.The
Chaque butée supérieure 108 et la butée inférieure 122 délimitent ainsi entre elles un passage de circulation d'une saillie 96 qui présente sensiblement une forme de W.Each
Comme on le verra plus bas, l'organe de verrouillage 90 est mobile le long de l'axe X-X' de circulation par rapport à l'organe d'engagement 92 dans le deuxième sens, entre une première position axiale désengagée, représentée sur la
En partant de la position d'engagement de la
Lors de ces déplacements, l'organe de verrouillage 90 est en outre mobile en rotation autour de l'axe X-X' par rapport à l'organe d'engagement 92 et par rapport à la ligne 18 entre une première configuration de circulation de la ligne flexible 18 à travers le limiteur de courbure 42 (
Avantageusement, les moyens d'immobilisation 46 peuvent comprendre un organe libérable de blocage (non représenté) de l'organe de verrouillage 90 par rapport à l'organe d'engagement 92, en translation dans la position axiale engagée et en rotation dans la configuration d'immobilisation axiale. Cet organe de blocage est par exemple une vis ou une goupille pouvant être mise en place et libérée sans rupture mécanique de l'organe de blocage par un véhicule commandé à distance (désigné par l'acronyme anglais « ROV »).Advantageously, the immobilizing means 46 may comprise a releasable locking member (not shown) of the locking
En partant de la position axiale engagée, l'organe de verrouillage 90 est mobile vers le bas le long de l'axe X-X' par rapport à l'organe d'engagement 92, entre la position engagée et une position de dégagement, représentée sur la
Lors de ces déplacements, l'organe de verrouillage 90 est mobile en rotation autour de l'organe d'engagement 92 entre la configuration d'immobilisation axiale dans un premier sens et une deuxième configuration de circulation axiale de la ligne flexible 18 à travers le limiteur de courbure 42, décalée angulairement par rapport à la première configuration de circulation axiale, sans rupture mécanique d'un organe de liaison entre l'organe d'engagement 92 et l'organe de verrouillage 90.During these displacements, the locking
Un procédé de montage de la ligne flexible 18 sur la structure flottante 16 va maintenant être décrit en regard des
Initialement, lorsque la ligne flexible 18 est stockée dans un navire ou à terre, un limiteur de courbure 42 est engagé autour de la ligne 18, à l'écart de l'extrémité supérieure 32.Initially, when the
A cet effet, la ligne 18 est insérée dans la lumière 76 à travers successivement le bloc inférieur 66, la bride intermédiaire 68 et les vertèbres 70A, 70B. Puis, la tête 33 de raccordement, sur laquelle est monté rotatif l'organe de verrouillage 90, est fixée axialement et angulairement sur la ligne 18, à l'extrémité supérieure 32 de la conduite 30.For this purpose, the
Le limiteur de courbure 42 étant maintenu fixe axialement, la ligne 18 est déplacée dans le deuxième sens vers le bas par rapport au limiteur 42 pour rapprocher l'organe de verrouillage 90 de l'organe d'engagement 92 et les amener dans la première position axiale désengagée, représentée sur les
Lorsque l'organe d'engagement 92 pénètre dans le logement de réception 100, chaque galet de roulage 104 bute contre le bord supérieur 120 d'une butée 108 et est guidé vers un passage d'insertion 128.When the
L'organe de verrouillage 90 et l'organe d'engagement 92 occupent alors la première configuration de circulation axiale dans le premier sens de la ligne flexible 18 à travers le limiteur de courbure 42.The locking
Puis, le déplacement axial vers le bas dans le deuxième sens de la ligne 18 par rapport au limiteur 42 se poursuit. Le galet 104 de roulage de chaque saillie 96 descend dans le passage 128, puis dans la rainure secondaire 134A située en regard de ce passage, en roulant vers le bas le long d'une surface inclinée 136.Then, axial downward movement in the second direction of the
Comme représenté sur la
En référence à la
Le galet 104 roule alors sur le bord inférieur convexe 122 de la butée supérieure 108. Le roulement du galet 104 provoque l'entraînement en rotation de l'organe de verrouillage 90 autour de l'axe X-X' par rapport à l'organe d'engagement 92 jusqu'à la configuration d'immobilisation axiale représentée sur la
Dans cette configuration, chaque saillie 96 est placée dans une rainure principale 124 en butée contre une butée supérieure 108 de retenue. Ceci immobilise axialement dans le premier sens la ligne flexible 18 dans le limiteur de courbure 42, notamment lorsqu'une force de traction vers le haut est exercée sur la ligne 18. Les moyens d'immobilisation axiale 46 sont ainsi activés.In this configuration, each
La ligne 18 est ensuite immergée dans l'étendue d'eau 14. Lorsque la ligne 18 doit être raccordée au collecteur 26 de la structure 16, le treuil 24 est activé pour descendre le câble 28 à travers le tube rigide creux 40, puis pour raccorder l'extrémité inférieure du câble 28 à la tête de raccordement 33 située à l'extrémité supérieure 32 de la ligne 18. La ligne 18 et le limiteur de courbure 42 sont placés sous la collerette d'extrémité 52 du tube rigide creux 40 à l'écart du tube 40.The
Le treuil 24 est alors activé pour remonter le câble 28 vers l'extrémité supérieure 56 du tube rigide creux 40. La remontée du câble 28 provoque le déplacement conjoint de la ligne 18 et du limiteur de courbure 42 vers la collerette 52 jusqu'à la position intermédiaire représentée sur la
Puis, le limiteur de courbure 42 est introduit partiellement dans le tube rigide 40.Then, the
A cet effet, l'ensemble supérieur flexible 64 est introduit dans la collerette d'extrémité 52, jusqu'à ce que la bride intermédiaire 68 s'applique contre la bride inférieure 58 de la collerette.For this purpose, the upper
En référence à la
Les vertèbres 70A, 70B étant liées entre elles par des liaisons flexibles, elles adoptent une légère courbure correspondant à la forme légèrement courbée de l'extrémité inférieure du tube 40.The
Les moyens d'immobilisation 46 sont alors libérés pour permettre la remontée de la ligne 18 à travers le limiteur de courbure 42 et le tube 40.The immobilizing means 46 are then released to allow the rise of the
A cet effet, le treuil 24 est piloté pour déplacer la tête de raccordement 33 dans le deuxième sens vers le bas.For this purpose, the
Comme illustré par les
La coopération entre la surface extérieure 105 du galet 104 et la surface inclinée 136 dans la rainure 134B entraîne en rotation l'organe de verrouillage 90 autour de l'axe X-X' depuis sa configuration d'immobilisation axiale vers une deuxième configuration de circulation de la ligne 18, représentée sur la
L'organe de verrouillage 90 tourne autour de l'axe X-X' toujours dans le même sens entre la première configuration de circulation, la configuration d'immobilisation axiale, et la deuxième configuration de circulation.The locking
En référence à la
L'organe de verrouillage 90 s'éloigne alors de l'organe d'engagement 92, ce qui entraîne le déplacement de chaque saillie 96 à l'extérieur de la rainure droite 134B, puis le long du bord droit 126B de la butée supérieure 108 dans le passage d'extraction 128 (
L'organe de verrouillage 90 occupe ensuite une position axiale dégagée, située au-dessus de l'organe d'engagement 92, dans laquelle l'organe d'engagement 92 a été extrait hors du logement 100.The locking
En référence à la
Les moyens d'immobilisation libérables 46 formés par un verrou rotatif sont donc activés simplement, pour autoriser, à l'aide d'un treuil unique, un déplacement conjoint du limiteur de courbure 42 et de la ligne 18 jusqu'au tube rigide creux 40. Puis, une fois le limiteur 42 fixé sur le tube rigide creux 40, les moyens d'immobilisation sont libérés de manière réversible, par un simple déplacement de la ligne 18, pour permettre à la ligne 18 de remonter à travers le limiteur de courbure 42 et à travers le tube 40.The releasable immobilizing means 46 formed by a rotary latch are therefore simply activated, to allow, by means of a single winch, a joint displacement of the
Il n'est pas nécessaire d'exercer une force de traction importante sur les moyens d'immobilisation 46, ni de rompre un organe de liaison entre l'organe de verrouillage 90 et l'organe d'engagement 92, pour libérer axialement la ligne 18 par rapport au limiteur de courbure 42. Le risque de détérioration de la ligne 18 est donc très limité.It is not necessary to exert a large traction force on the immobilizing means 46, or to break a connecting member between the locking
Lorsque la ligne 18 doit être détachée de la structure 16, elle est redescendue dans le tube creux 40, jusqu'à ce que l'organe de verrouillage 90 s'engage autour de l'organe d'engagement 92 dans leur configuration d'immobilisation axiale, comme décrit précédemment.When the
Le collier 78 des moyens de fixation 44 est alors enlevé, pour détacher le limiteur de courbure 42 de la collerette 52 et descendre conjointement la ligne 18 et le limiteur de courbure 42 à l'écart du tube creux 40.The
Claims (12)
- A device (20) for mounting a flexible line (18) on a structure (16), of the kind comprising:- a hollow rigid member (40), intended to be integral with the structure (16), the hollow rigid member (40) defining a traveling way of the flexible line;- a curvature limiter (42) defining a lumen (76) for inserting the flexible line (18), with the insertion lumen (76) having a travel axis (X-X') of the flexible line (18), the curvature limiter (42) being movable relative to the hollow rigid member (40) between a position away from the hollow rigid member (40) and a position mounted on the hollow rigid member (40);- releasable means (46) for axial immobilization of the curvature limiter (42) on the flexible line (18) in at least one first direction along a travel axis (X-X'), for moving the flexible line (18) together with the curvature limiter (42) relative to the hollow rigid member (40) between a position away from the hollow rigid member and the mounted position;
characterized in that the axial immobilization means (46) comprise:* a locking member (90), axially integral with a first element among of the flexible line (18) and the curvature limiter (42), and* a member (92) for engaging the locking member (90), axially integral with a second element among the flexible line (18) and the curvature limiter (42),the locking member (90) and the engaging member (92) being mounted to be rotatably movable in relation to each other around the travel axis (X-X') between a configuration for axial immobilization in the first direction of the flexible line (18) on the curvature limiter (42), and at least one first angularly shifted configuration for axial travel in the first direction of the flexible line (18) through the curvature limiter (42). - The device (20) according to claim 1, characterized in that the locking member (90) and the engaging member (92) are movable in relation to each other along the travel axis (X-X') between:- at least one disengaged axial position, in which the locking member (90) and the engaging member (92) are remote from each other and adopt a first configuration for axial travel in the first direction of the flexible line (18) inside the curvature limiter (42);- an axial position for engaging the locking member (90) with the engaging member (92), in which the locking member (90) and the engaging member (92) are moved closer to each other;- an engaged axial position, in which the locking member (90) and the engaging member (92) adopt the configuration for axial immobilization in the first direction of the flexible line (18) inside the curvature limiter (42);
the engaged axial position being located axially between the disengaged axial position and the engaging axial position. - The device (20) according to claim 2, characterized in that the locking member (90) and the engaging member (92) have complementary surfaces (105, 136, 138, 122) suitable for cooperating so as relatively rotate the locking member (90) in relation to the engaging member (92) around the travel axis (X-X') from the travel configuration to the configuration for axial immobilization, during the relative axial movement of the locking member (90) in relation to the engaging member (92), successively between the disengaged axial position, the engaging position, and the engaged position.
- The device (20) according to any of the preceding claims, characterized in that the locking member (90) comprises at least one transverse retaining projection (96), with the engaging member (92) comprising at least one axial retaining stop (108) of the or each projection (96), the axial retaining stop (108) defining a main groove (124) for engaging the projection (96) axially opening in a second direction opposite the first direction,
the or each projection (96) being received inside the main groove (124) in the configuration for axial immobilization. - The device (20) according to claim 4, characterized in that the engaging member (92) comprises a guiding stop (110) axially shifted in relation to the or each axial retaining stop (96), with the guiding stop (110) defining at least one secondary groove (134A, 134B) for guiding the retaining projection opening opposite the main groove (124) in the first direction.
- The device (20) according to claim 5 in combination with claim 3, characterized in that the complementary surfaces (105, 136, 138, 122) are respectively delimited by the or each retaining projection (96) on the one hand, and by the or each guiding stop (110) and/or the or each axial retaining stop (108) on the other hand.
- The device (20) according to any of the preceding claims, characterized in that one of the locking member (90) and the engaging member (92) is mounted to be freely rotatable around the travel axis (X-X'), respectively on the first element or the second element among the flexible line (18) and the curvature limiter (42).
- The device (20) according to any of the preceding claims, characterized in that one of the locking member (90) and the engaging member (92) defines a receiving housing (100) suitable for receiving the other one of the locking member (90) and the engaging member (92) in the configuration for axial immobilization.
- The device (20) according to any of the preceding claims, characterized in that the locking member (90) and the engaging member (92) are movable in relation to each other around the travel axis (X-X') between the configuration for axial immobilization and at least a second configuration for axial travel (X-X'), angularly shifted in relation to the first configuration for axial travel, with the configuration for axial immobilization being angularly located between the first and second configuration for axial travel.
- A fluid exploitation installation (10), of the type comprising:- a structure (16);- a flexible line (18) to be connected to the structure (16); and- a device (20) according to any of the preceding claims, the hollow rigid member (40) being integral with the structure (16).
- The installation according to claim 10, characterized in that the structure (16), the hollow rigid member (40), and the flexible line (18) are at least partially immersed into a body of water (14).
- A method for mounting a flexible line (18) on a structure (16) by means of a device (20) according to any of claims 1 to 9, characterized in that it comprises the following steps:• axially immobilizing in the first direction the curvature limiter (42) on the flexible line (18) by engaging the locking member (90) with the engaging member (92), so that the locking member (90) and the engaging member (92) adopt their configuration for axial immobilization in the first direction of the flexible line (18) on the curvature limiter (42);• moving the curvature limiter (42) and the flexible line (18) together from the position away from the hollow rigid member to the position mounted on the hollow rigid member (40);• relatively rotating the locking member (90) in relation to the engaging member (92) around the travel axis (X-X'), so as to transfer the locking member (90) and the engaging member (92) from the configuration for axial immobilization to a configuration for axial travel;• axial travelling of the flexible line (18) through the curvature limiter (42) and through the hollow rigid member (40), the curvature limiter (42) remaining substantially axially immobile in relation to the hollow rigid member (40).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0853587A FR2931867B1 (en) | 2008-05-30 | 2008-05-30 | DEVICE FOR MOUNTING A FLEXIBLE LINE ON A STRUCTURE, INSTALLATION AND ASSOCIATED METHOD. |
PCT/FR2009/050983 WO2009156639A1 (en) | 2008-05-30 | 2009-05-27 | Device for mounting a flexible line on structure, and related equipment and method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2315905A1 EP2315905A1 (en) | 2011-05-04 |
EP2315905B1 true EP2315905B1 (en) | 2014-03-19 |
Family
ID=40227601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09769480.6A Active EP2315905B1 (en) | 2008-05-30 | 2009-05-27 | Device for mounting a flexible line on structure, and related equipment and method |
Country Status (9)
Country | Link |
---|---|
US (1) | US8596912B2 (en) |
EP (1) | EP2315905B1 (en) |
AP (1) | AP3044A (en) |
AU (1) | AU2009264058B2 (en) |
BR (1) | BRPI0913110B1 (en) |
FR (1) | FR2931867B1 (en) |
MY (1) | MY153372A (en) |
NZ (1) | NZ589595A (en) |
WO (1) | WO2009156639A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102438888B (en) * | 2009-04-02 | 2015-06-17 | 瑞士单浮筒系泊公司 | Disconnectable chain connector |
FR2979658B1 (en) * | 2011-09-07 | 2015-07-17 | Technip France | METHOD FOR CONNECTING A FLEXIBLE LINE TO A STRUCTURE OF A FLUID OPERATING INSTALLATION AND CONNECTING DEVICE THEREFOR |
GB2497953A (en) * | 2011-12-22 | 2013-07-03 | Subsea Riser Products Ltd | Preloaded Mooring Connector |
BRPI1106877B1 (en) * | 2011-12-29 | 2020-07-28 | Petroleo Brasileiro S.A. -Petrobras | cushioning sleeve and anchoring method |
CN102563064B (en) * | 2011-12-31 | 2015-05-20 | 中国船舶重工集团公司第七○二研究所 | Deepwater pressure-proof circular-opening flange butt-joint deadlock kickoff mechanism |
JP5680128B2 (en) * | 2012-04-13 | 2015-03-04 | 東京応化工業株式会社 | Adhesive composition, adhesive film, and application method |
GB2508919A (en) * | 2012-12-17 | 2014-06-18 | Flexible Engineered Solutions Ltd | Subsea connector assembly |
GB201320250D0 (en) * | 2013-11-15 | 2014-01-01 | Tekmar Energy Ltd | Mounting methods and assemblies for longitudinally extensive members |
GB201702830D0 (en) * | 2017-02-22 | 2017-04-05 | Advanced Insulation Plc | Connection apparatus |
GB2561259B (en) * | 2017-06-21 | 2019-05-08 | C Ling Ltd | Pull-in head assembly |
GB2561260B (en) * | 2017-06-21 | 2019-05-08 | C Ling Ltd | Pull-in head assembly |
GB2561261B (en) * | 2017-06-21 | 2019-05-08 | C Ling Ltd | Pull-in head assembly |
EP3473801A1 (en) * | 2017-10-18 | 2019-04-24 | Technip France | Apparatus for mounting a flexible line onto a surface facility and related method |
Family Cites Families (12)
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---|---|---|---|---|
US2799344A (en) * | 1954-12-31 | 1957-07-16 | Baker Oil Tools Inc | Apparatus for lowering and elevating tools in well bores |
GB1478214A (en) * | 1975-01-17 | 1977-06-29 | Brown Root Ltd | Methods of connecting underwater pipelines |
GB2203508A (en) * | 1987-04-16 | 1988-10-19 | Shell Int Research | System and method for securing a marine riser to a floating structure |
US4943188A (en) * | 1988-05-20 | 1990-07-24 | Lockheed Corporation | Rotating lug anchor connector |
FR2689603B1 (en) * | 1992-04-07 | 1994-05-20 | Coflexip | DEVICE FOR MOUNTING A FLEXIBLE LINE COMPRISING A CURVATORY LIMITER. |
BR9605669C1 (en) * | 1996-11-22 | 2000-03-21 | Petroleo Brasileiro Sa | submarine to a structure located on the surface. |
US6386798B2 (en) * | 1999-03-30 | 2002-05-14 | Deep Oil Technology Incorporated | Universal catenary riser support |
FR2807814B1 (en) * | 2000-04-17 | 2002-07-12 | Techlam | DEVICE FOR CONNECTING A SUBMERSIBLE FLUID TRANSPORT LINE |
EP1247935A1 (en) * | 2001-04-05 | 2002-10-09 | Norsk Hydro ASA | Production riser |
FR2861156B1 (en) * | 2003-10-17 | 2007-04-27 | Technip France | GUIDE TUBE FOR FLEXIBLE HYDROCARBON TRANSPORT CONDUIT. |
NO325132B1 (en) * | 2004-03-31 | 2008-02-04 | Aker Subsea As | connector |
AU2005294434B2 (en) * | 2004-10-06 | 2009-03-19 | Single Buoy Moorings, Inc. | Riser connector |
-
2008
- 2008-05-30 FR FR0853587A patent/FR2931867B1/en not_active Expired - Fee Related
-
2009
- 2009-05-27 US US12/995,213 patent/US8596912B2/en active Active
- 2009-05-27 BR BRPI0913110-8A patent/BRPI0913110B1/en active IP Right Grant
- 2009-05-27 AP AP2010005500A patent/AP3044A/en active
- 2009-05-27 WO PCT/FR2009/050983 patent/WO2009156639A1/en active Application Filing
- 2009-05-27 AU AU2009264058A patent/AU2009264058B2/en active Active
- 2009-05-27 EP EP09769480.6A patent/EP2315905B1/en active Active
- 2009-05-27 NZ NZ589595A patent/NZ589595A/en unknown
- 2009-05-27 MY MYPI2010005639A patent/MY153372A/en unknown
Also Published As
Publication number | Publication date |
---|---|
AP2010005500A0 (en) | 2010-12-31 |
US20110162747A1 (en) | 2011-07-07 |
BRPI0913110B1 (en) | 2019-03-26 |
US8596912B2 (en) | 2013-12-03 |
NZ589595A (en) | 2012-08-31 |
AU2009264058A1 (en) | 2009-12-30 |
FR2931867A1 (en) | 2009-12-04 |
AP3044A (en) | 2014-11-30 |
AU2009264058B2 (en) | 2015-09-03 |
EP2315905A1 (en) | 2011-05-04 |
MY153372A (en) | 2015-01-29 |
WO2009156639A1 (en) | 2009-12-30 |
BRPI0913110A2 (en) | 2016-01-05 |
FR2931867B1 (en) | 2010-08-13 |
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