WO1999010226A2 - Fluid swivel for oil production vessels and tanker vessels - Google Patents
Fluid swivel for oil production vessels and tanker vessels Download PDFInfo
- Publication number
- WO1999010226A2 WO1999010226A2 PCT/US1998/017244 US9817244W WO9910226A2 WO 1999010226 A2 WO1999010226 A2 WO 1999010226A2 US 9817244 W US9817244 W US 9817244W WO 9910226 A2 WO9910226 A2 WO 9910226A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinders
- fluid swivel
- wound
- conduit
- cones
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000010410 layer Substances 0.000 claims 3
- 239000002356 single layer Substances 0.000 claims 3
- 238000004804 winding Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 2
- 230000000284 resting effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4449—Arrangements or adaptations to avoid movable contacts or rotary couplings, e.g. by the use of an expansion chamber for a lenght of the cord or hose
- B65H75/4452—Simultaneous winding and unwinding of the material, e.g. winding or unwinding on a stationary drum while respectively unwinding or winding on a rotating drum using a planetary guiding roller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
- B65H75/4405—Traversing devices; means for orderly arranging the material on the drum
- B65H75/4415—Guiding ribs on the drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/33—Hollow or hose-like material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
Definitions
- This invention relates generally to the transfer of fluids, electric and hydraulic power, and signals between installations on the sea bed and a weathervaning vessel that is moored to a single point mooring.
- the primary application of the invention is for offshore oil production vessels that are moored to a single point mooring or a turret and to oil tankers that are moored to single point moorings.
- the invention relates to the fluid swivel required in the conduits and cables connecting the systems aboard the weathervaning vessel to the sub sea systems .
- Swivels of the first type can rotate an unlimited number of revolutions in either direction. However, for multiple paths this type of swivel has the disadvantage of being heavy and prone to leaks. It also has limited internal pressure capability of up to about 35 MPa.
- Swivels of the types 2 through 5 are all limited number of revolutions swivels. They can practically only be designed for 6 to 8 revolutions before reaching the limit. They are all heavy with the exception of type 5.
- Type 5 as described in US Patents 4,643,462 and 4,597,595 has a practical limit of revolutions on the order of 4 to 6 revolutions.
- An object of the present invention is to make a limited number of revolutions swivel permitting a large number of revolutions such as 20 and permitting a large number of fluid, power, and signal paths.
- a further object is to make the swivel leak proof and capable of resisting large internal pressures in the conveyed fluid such as 70 MPa.
- An alternative embodiment spools between two cylinders with a common axis.
- the pipe spooled on one cylinder is supported by a structure resting on the pipe spooled on the other cylinder, thereby preventing the pipe on either cylinder from falling down.
- Yet another embodiment spools between two cylinders provided with helically formed shelves.
- the pipes spooled on the cylinders are supported by the helically formed shelves.
- the invention removes the limitation on existing type 5 swivels of only being able to practically store two wraps of pipe on each spool to permitting 10 or more wraps on each spool thereby making the number of revolutions end to end 20 or more. Because there are no rotating seals in the swivel according to this invention and because the swivel may use pipe of the type manufactured by COFLEXIP, the pressure limitations for the swivel are basically the same as for COFLEXIP type pipe.
- Figure 1 shows a side view of a swivel of a first embodiment consisting of spooling one pipe between two conical surfaces .
- Figure 2 shows a side view of a swivel of a second embodiment consisting of spooling two or more pipes between two conical surfaces .
- Figure 3 shows a side view of a swivel of the third embodiment consisting of spooling one pipe between two cylindrical surfaces.
- Figure 4 is a side view of a fourth embodiment consisting of spooling two or more pipes between two cylindrical surfaces .
- Figure 5 is a side view of a fifth embodiment consisting of spooling one or more pipes between two cylinders fitted with helically formed shelves
- Figure 6 shows a side view of a sixth embodiment consisting of spooling numerous pipes between two cylinders fitted with two or more helically formed shelves .
- FIG. 1 shows a side view of the first embodiment of the invention.
- a fluid swivel 11 according to this invention is mounted on a surface 10 which may be the deck of a ship (not shown) .
- the fluid swivel 11 is comprised of two parts 12 and 13 separated by a roller bearing 14.
- the two parts 12 and 13 are substantially identical and each consists of a conical surface with the apex point up.
- the lower cone 13 is fixed to the surface 10.
- the upper cone 12 may rotate relative to the lower cone on the common rotational axis of symmetry 15.
- the rollers 16 in roller bearing 14 in consequence rotates about the axis 15 at exactly A the rotational speed of the cone 12.
- Piping 20 which is fixed to the surface 10 is connected to flexible piping 21.
- the flexible piping 21 is wound onto the lower part of cone 13 then curving over a spooling device 25 onto the upper part of cone 12 where it 21 is wound onto the upper part of cone 12. After a number of windings the flexible pipe 21 connects above the cone to the pipe 22. There is therefore continuous fluid connection from pipe 20 to pipe 22 through flexible pipe 21.
- the connectors 23 may for example be flanges.
- the pipe 22 rotates with the rotational axis 15 relative to pipe 20 with the same rotational speed as cone 12.
- the fluid swivel 11 may rotate end to end a number of revolutions that is two times the sum of the number of windings on cones 12 and 13.
- the spooling device 25 is coupled to the bearing 14 such that it rotates about the axis 15 with the same speed as the rollers 16.
- the spooling device may be equipped with one or more guide rollers 27 that guide the flexible pipe 21 when it is transferred between the cones 12 and 13.
- the spooling device 25 may be equipped with gear wheels meshing with gears on the cones 12 and 13.
- the spooling device 25 may be equipped with a mechanism 26 that automatically lowers or raises the spooling device such that it maintains a constant elevation relative to the upper winding on cone 13.
- the spooling device 25 maintains a suitable tension in the flexible pipe 21. This tension combined with the friction between pipe 21 and cone 12 prevents the pipe from sliding down on cone 12. Because cones 12 and 13 have the same radius at the winding and unwinding points (not visible) there is no tendency to slacken or tighten the pipe 21 as it is transferred between the cones 12 and 13. The system however is self adjusting. In the event of slack in flexible pipe 21 a slightly lower winding position or unwinding position will be assumed on cone 12. In the event of tension in pipe 21 the pipe will elongate slightly due to its elasticity and be wound tightly onto the cone 12 or cone 13 onto which the flexible pipe 21 is wound.
- Figure 2 shows a second embodiment that is similar to the embodiment in figure 1 with the exception that two flexible pipes 21 are wound onto the cones 12 and 13.
- the pipes 21 may be housed together in a prismatic flexible cover.
- the vessel 10 has in this embodiment two pipes 20 connecting through connectors 23 to flexible pipes 21.
- One pipe 21 is wound as shown on figure 1.
- the other pipe 21 labeled 28 is carried through hole 29 in cone 13 through the interior of cone 13 in a manner that it does not interfere with pipes 22.
- the pipe 28 exits from the interior of cone 13 through hole 30 near the upper end of cone 13 and is wound onto the upper exterior part of cone 13.
- the pipe 28 is transferred via a spooling device 31 onto the lower part of cone 12.
- the spooling device 31 is mounted in like manner and functions in like manner to the spooling device 25 described in figure 1.
- the pipe 28 is carried into the interior of cone 12 through hole 32.
- the pipe 28 is carried though the interior part of cone 12 to a second pipe 22. It is connected with a connector 23 to the second pipe 22.
- two independent fluid paths have been established through pipes 21 and 28 through fluid swivel 11 between pipes 20 and pipes 22.
- Additional pipes similar to pipes 21 and 28 may be wound onto cones 12 and 13 on the outside of pipes 21 and 28 and deployed in similar manner to pipes 21 and 28. These additional pipes (not shown) may be carried between the two cones 12 and 13 by spooling devices 25 and 31. In this manner a large number of independent fluid paths may be incorporated into fluid swivel 11.
- Figure 3 shows a third embodiment which is similar to the embodiment in figure 1 except the pipe 21 is wound onto two cylinders 40 and 41.
- the pipe 21 could slide down on the upper cylinder 40.
- the support bar 42 is mechanically connected to one or more wheels 16 in roller bearing 14 such that it rotates about the axis 15 with half the rotational speed of cylinder 40.
- the support bars 42 may be interconnected by connectors (not shown) that maintain their alignment parallel to the axis 15.
- Figure 4 shows a fourth embodiment which is similar to the embodiment shown in figure 2 except the pipes 21 and 28 are wound onto two cylinders 40 and 41.
- the pipe 20 is connected at coupler 23 to the flexible pipe 21 similar to the manner shown in figure 3.
- the pipe 28 is threaded through the interior part of cylinder 41 entering at hole 50 and exiting at hole 52. Similar to the manner shown in figure 2 the pipe 28 is transferred via spooling device 31 to the upper cylinder 40.
- the flexible pipe 28 is threaded though the interior of cylinder 40 entering at hole 54 and exiting at hole 55.
- the wraps of pipe 28 that is wrapped onto the lower part of cylinder 40 supports the wraps of pipe 21 which is wrapped onto the upper part of cylinder 40 through support bars 60 and support wheels 61 rolling on pipes 28 and 21.
- pipe 21 supports pipe 28 on the other cylinder 41.
- Many sets of support bars 60 are usually used but only two are shown for clarity on figure 4.
- the upper and lower support bars 60 are connected by structural element 62 which is connected by structural element 63 to the rollers 16 in bearing 14. Thus the bars 60 remain in a fixed position relative to spooling devices 25 and 31.
- the support bars 60 may be connected by structures (not shown) that maintain their orientation relative to the axis of rotation 15.
- Figure 5 shows yet another embodiment of the invention similar to the embodiments in figures 3 and 4 in which the wraps of flexible pipe 21 and 28 are stored on helical shelves 72.
- Three flexible pipes 21 provide a fluid connection between pipes 20 on the surface 10 and the pipes 22 that may rotate about the vertical axis 15.
- Figure 5 shows a flexible pipe configuration similar to the configurations in figures 1 and 3. Additional pipes may be added similar to the configuration in figures 2 and 4. In this manner the fluid swivel shown on figure 5 would provide 6 fluid paths that may be rotated 14 times about axis 15. By making the helical shelves wider additional fluid paths may accommodated. Therefore, as shown in fig. 5, multiple layers are wound on the cylinders 70 and 71.
- the helical shelves 72 provide a particularly simple way of controlling the vertical position of the spooling device 25 by supporting the spooling device 25 through rollers 74 rolling on the helical shelves.
- Figure 6 shows yet another embodiment similar to the embodiment in figure 5.
- This embodiment is similar to the embodiment in Figure 5.
- This embodiment consists of two cylinders 80 and 81 separated by a bearing 14.
- the cylinder 80 is fitted with two or more helical shelves.
- Figure 5 shows the cylinder 80 fitted with three helical shelves 86, 87, and 88.
- the cylinder 81 is likewise fitted with three helical shelves 83, 84, and 85.
- each shelf carries three pipes 21, accommodate 18 separate fluid paths. For clarity only one such path is illustrated on figure 6.
- Flexible pipe 21 goes from the deck 10 onto shelf 86 on cylinder 80. From there it passes via the spooling device 25 onto shelf 84 on cylinder 81, terminating on top of cylinder 81.
- the swivel can make 4 turns end to end. However, any number of turns can be obtained by making the device higher.
- any number of fluid paths can be obtained by increasing the number of helical shelves 86, 87, 88, 83, 83, and 85 on the cylinders 80 and 81.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0004395A GB2355443B (en) | 1997-08-22 | 1998-08-20 | Fluid swivel for oil production vessels and tanker vessels |
AU90264/98A AU9026498A (en) | 1997-08-22 | 1998-08-20 | Fluid swivel for oil production vessels and tanker vessels |
US09/486,187 US6338505B1 (en) | 1998-08-20 | 1998-08-20 | Fluid swivel for oil production vessels and tanker vessels |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5663597P | 1997-08-22 | 1997-08-22 | |
US60/056,635 | 1997-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999010226A2 true WO1999010226A2 (en) | 1999-03-04 |
Family
ID=22005694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/017244 WO1999010226A2 (en) | 1997-08-22 | 1998-08-20 | Fluid swivel for oil production vessels and tanker vessels |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU9026498A (en) |
GB (1) | GB2355443B (en) |
WO (1) | WO1999010226A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008507039A (en) * | 2004-07-13 | 2008-03-06 | スリープラスワン テクノロジー, インコーポレイテッド | Programmable processor architecture |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3477746A (en) * | 1967-10-03 | 1969-11-11 | Watson Mfg Co | Multiline swivel and mounting system |
US3909047A (en) * | 1974-03-11 | 1975-09-30 | Gordon O Salmela | Rotary rolling conduit |
US4597595A (en) * | 1985-02-26 | 1986-07-01 | Bechtel International Corporation | Swivel-less coupling apparatus |
US4643462A (en) * | 1986-01-24 | 1987-02-17 | Bechtel International Corporation | Double-looped rotatable coupler with tension stabilizer |
GB8628340D0 (en) * | 1986-11-27 | 1986-12-31 | British Petroleum Co Plc | Underwater oil production |
-
1998
- 1998-08-20 WO PCT/US1998/017244 patent/WO1999010226A2/en active Application Filing
- 1998-08-20 AU AU90264/98A patent/AU9026498A/en not_active Abandoned
- 1998-08-20 GB GB0004395A patent/GB2355443B/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008507039A (en) * | 2004-07-13 | 2008-03-06 | スリープラスワン テクノロジー, インコーポレイテッド | Programmable processor architecture |
Also Published As
Publication number | Publication date |
---|---|
GB2355443A (en) | 2001-04-25 |
AU9026498A (en) | 1999-03-16 |
GB2355443B (en) | 2002-01-02 |
GB0004395D0 (en) | 2000-04-12 |
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