WO2003006783A1 - Riser system for water intake - Google Patents

Riser system for water intake Download PDF

Info

Publication number
WO2003006783A1
WO2003006783A1 PCT/GB2002/003184 GB0203184W WO03006783A1 WO 2003006783 A1 WO2003006783 A1 WO 2003006783A1 GB 0203184 W GB0203184 W GB 0203184W WO 03006783 A1 WO03006783 A1 WO 03006783A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
caisson
adaptor
tool
riser
Prior art date
Application number
PCT/GB2002/003184
Other languages
French (fr)
Inventor
Burghard Brink
Original Assignee
Phoenix Beattie Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phoenix Beattie Limited filed Critical Phoenix Beattie Limited
Priority to EP02751305A priority Critical patent/EP1404942A1/en
Priority to BR0211113-6A priority patent/BR0211113A/en
Priority to KR10-2004-7000475A priority patent/KR20040027875A/en
Publication of WO2003006783A1 publication Critical patent/WO2003006783A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
    • F03G7/05—Ocean thermal energy conversion, i.e. OTEC
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the elevator means is connectable with the adaptor.
  • an assembled sea water riser is made up of a continuous hose 9 fitted at its free end with a strainer 10 for straining sea water pumped into the continuous hose 9.
  • the caisson outlet 8 is sealed with a conical lead 11 so that sea water is pumped through the caisson via the continuous hose 9 only.
  • the conical lead 11 is described more fully below.
  • the sea water supports the weight of the continuous hose 9 to assist the crane. Accordingly, the invention facilitates the installation of long length risers and the modification of the riser length employing the auxiliary clamping device 15 and the fishing and releasing tool 44. In order to dismantle the flexible hose 9 the aforementioned process is repeated in reverse.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Oceanography (AREA)
  • Sustainable Development (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Supports For Pipes And Cables (AREA)
  • Catching Or Destruction (AREA)

Abstract

A riser system comprising a caisson (4), a hose (9) extendable through the caisson formed from a plurality of hose components (5), clamping means (16) moveable between an open position and a closed position for supporting the hose at a caisson (7) inlet and elevator means for raising and lowering the hose in the caisson.

Description

RISER SYSTEM FOR WATER INTAKE
Technical Field This invention relates to a riser system and in particular to an assembly for and a method of installation and recovery of a sea water intake riser on a Floating Production Storage and Off- loading (FPSO) vessel or similar.
Background Art Sea water intake risers are generally installed in FPSO's to provide a means of obtaining low oxygenated water for the FPSO cooling, process, utility and/or water injection systems. Sea water intake risers are typically attached to sea water intake grids located below water level on the port and/or starboard sides of a FPSO hull or similar converted tanker.
Known sea water intake riser systems are in general costly to install when building an FPSO while, once installed, known sea water intake riser systems offer little flexibility in terms of length adjustment and the like.
Disclosure of the Invention According to the invention there is provided a riser system comprising a caisson, a hose extendable through the caisson formed from a plurality of hose components, clamping means moveable between an open position and a closed position for supporting the hose at a caisson inlet and elevator means for raising and lowering the hose in the caisson.
Preferably, the hose comprises a plurality of hose components interconnected by adaptors. Advantageously, the clamping means is moveable between a closed position in which the adaptor or a hose component is gripped by the clamping means and an open position.
Suitably the elevator means is connectable with the adaptor.
Advantageously, the system further comprises sealing means for sealing the hose in the caisson. Preferably, the system further includes a tool engageable with the sealing means for raising and lowering the hose in the caisson. Suitably, the tool comprises releasable gripping means for gripping the sealing means.
Advantageously, the tool is slidable in the caisson and the releasably gripping means are moveable between a first position in which the sealing means is gripped by the gripping means and a second position in which the gripping means are released by the tool and the tool can be extracted from the caisson.
The invention also extends to a method of installing a sea water riser system comprising passing a hose through a caisson from the interior or exterior of a vessel.
Preferably, the method further comprises the step of assembling the hose in the caisson. More preferably the hose is assembled from flexible hose components. Most preferably, the method comprises interconnecting the flexible hose components with adaptors .
Suitably, the method comprises the step of supporting the flexible hose component/adaptor at a caisson inlet during assembly.
Suitably, the method further comprises the step of lowering the hose into the caisson following assembly of each flexible hose component.
The method further comprises the step of attaching a sealing means to the flexible hose to define a seal between the flexible hose and the caisson. The hose and sealing means are then lowered in the caisson with a tool to extend the hose from the caisson.
The method further comprises the step of removing the tool from the caisson following lowering of the hose in the caisson.
The invention also extends to a riser assembly comprising a caisson and a hose extendable from the caisson.
Preferably, the hose comprises a plurality of hose components. More preferably, the hose comprises an adaptor between the hose components.
Brief Description of the Drawings Various embodiments of the invention will now be described, by way of example only, having regard to the accompanying drawings in which:
Figure 1 is a perspective view from above and one side of an FPSO fitted with an assembly in accordance with the invention;
Figure 2 is a schematic cross-section through the hull of an FPSO prior to and following installation of a sea water riser system of the invention below deck;
Figure 3 is a side elevation of an assembled sea water riser system of the invention; Figure 4 is a side elevation of a hose adaptor and strainer for assembly and insertion in a caisson of an assembly of the invention;
Figure 5 is a side elevation of an auxiliary device with the hose clamps in the open position for mounting on the caisson flange;
Figure 6 is a partial cross-section of the strainer and hose adaptor of Figure 4 partially inserted in the caisson having the lifting elevator connected to the hose adaptor with the clamps in the open position;
Figure 7 is a partial cross-section of the strainer and the hose adaptor in the caisson with a first end of a flexible hose component disposed over the hose adaptor for attachment to the hose adaptor with the clamps in the closed position;
Figure 8 is a partial cross-section of the flexible hose component of Figure 7 inserted in the caisson with the lifting elevator connected to a hose adaptor at the second end of the flexible hose component at the auxiliary device with the clamps in the open position;
Figure 9 is a partial cross-section through the arrangement of Figure 8 with the hose clamps of the auxiliary device in the closed position; Figure 10 is a partial cross-section through the arrangement of Figure 9 with the conical lead located over a hose adaptor with a rubber packing disposed between the conical lead and the hose adaptor and the clamps in the closed position;
Figure 11 is a partial cross-section through the assembly of Figure 10 with the conical lead mounted on the hose adaptor and the fishing and retrieving tool located over the conical lead;
Figure 12 is a partial cross-section through the assembly of Figure 11 with the fishing and releasing tool inserted in to the conical lead;
Figure 13 is a side elevation of the fishing and releasing tool with the dogs in the down position, and
Figure 14 is a side elevation of the fishing and releasing tool with the dogs in the up position.
Detailed Description As shown in the drawings, an FPSO 1 is fitted with a caisson 4 at a stern 2 of the FPSO 1. The caisson 4 extends between a location below sea level and a deck 3 at the stern 2. The caisson 4 serves to facilitate assembly of a sea water riser system. (As shown in Figure 2 the assembly of the invention can also be located below deck) . The assembly of the invention is generally made up of the caisson 4 and a plurality of flexible hose components 5 interconnected at hose adaptors 6 into a continuous hose 9. The continuous hose 9 is passed through the caisson 4 and functions as a sea water intake riser in combination with the caisson 4. In the present embodiment of the invention five tubular caissons are provided. Each caisson 4 is provided with a sealable caisson inlet 7 and a caisson outlet 8 through which a continuous hose 9 can pass from the caisson 4. A caisson inlet flange 58 is disposed about the inlet 7.
As shown in Figure 3, an assembled sea water riser is made up of a continuous hose 9 fitted at its free end with a strainer 10 for straining sea water pumped into the continuous hose 9. The caisson outlet 8 is sealed with a conical lead 11 so that sea water is pumped through the caisson via the continuous hose 9 only. The conical lead 11 is described more fully below.
The method of assembly of the system of the invention will now be described sequentially having regard to Figures 4 to 14 of the accompanying drawings. As indicated above, the continuous hose 9 is made up of a plurality of interconnected hose components 5.
As shown in Figure 4, a hose adaptor 6 is first mounted on a strainer 10 with a rubber packing 13 disposed between the strainer 10 and the hose adaptor 6. The hose adaptor 6 is provided with a hose adaptor top flange 18 and a hose adaptor bottom flange 20 while each hose component 5 is provided with a hose component flange 24 at each end thereof for attachment to the hose adaptor 6. A chlorine pipe 12, typically of stainless steel, is mounted in the hose adaptor 6 of Figure 4 for delivering chlorine to the strainer 10.
Once the strainer 10 and the hose adaptor 6 have been assembled as described above, an auxiliary device 15 having clamps 16 for gripping the hose adaptor 6 or flexible hose component 5 is located on the caisson flange 58 hose and connected to caisson flange 58. The clamps 16 are moveable between an open position on the caisson flange 58 in which the hose component 5 or adaptor 6 is not supported and a closed position in which the hose component or adaptor 6 is supported. In Figure 5, the clamps 16 are in the open position.
Following connection of the auxiliary device 15 with the caisson flange 58 the assembled strainer 10 and hose adaptor 6 is engaged by a lifting elevator 22 located at the caisson inlet 7. This is clearly demonstrated in Figure 6.
The strainer 10 and hose adaptor assembly 6 are settled into the inlet 7 of the caisson 4 with the clamps 16 of the auxiliary device 15 in the open position. The clamps 16 are then closed to support the strainer 10 and the lifting elevator 22 is disconnected from the hose adaptor 6. A flexible hose component 5 is then positioned over the hose adaptor 6 by a crane (not shown) or the like.
The flexible hose component 5 is disposed over the hose adaptor 6 as shown in Figure 7. The flexible hose component flange 24 is complementary with the hose adaptor top flange 18. The hose component 5 is also provided with a chlorine hose connector 26 engageable with the chlorine pipe 12 of the strainer 10. The flexible hose component hose 5 is provided with an internal chlorine hose 28 (shown in broken lines) engagable with the chlorine hose connector 26 to direct chlorine to the strainer 10. The hose clamp flange 24 is then connected to the hose adaptor top flange 18. The clamps 16 of the auxiliary device 15 are maintained in the closed position during attachment of the flexible hose component 5 to the hose adaptor 6.
As described above, each flexible hose component 5 has a flexible hose component flange 24 at each end thereof so that each end of each flexible hose component 5 is connectable to a hose adaptor 6. Following connection of the flexible hose component 5 to the hose adaptor 6 as shown in Figure 7, the hose adaptor 6 at the opposite end of the flexible hose component 5 is connected to the lifting elevator 22 and is raised a distance in accordance with the dimension of the assembly. The hose clamps 16 of the auxiliary device 15 are then opened and the flexible hose component 15 is lowered through the caisson inlet 7 into the caisson 4 as shown in Figure 8.
The clamps 16 of the auxiliary device 15 are then located at the next hose adaptor 6 as the lifting elevator 22 is removed from the hose adaptor 6. This is clearly described in Figure 9.
The crane is then employed to pick up a subsequent flexible hose component 5 /hose adaptor 6 and the above mentioned process as described in Figures 7 to 9 is repeated in accordance with the length of riser system required.
As shown in Figure 10, a conical lead 11 is then engaged by a crane hook 30 and cables 32. The conical lead 11 is located over the hose adaptor 6 at the inlet 7 of the caisson 4 with the clamps 16 in the closed position to hold the hose adaptor 6 at the inlet 7. A rubber packing 13 is disposed on the hose adaptor top flange 18.
The conical lead 11 is provided with a leading outwardly depending flange 34, an intermediate outwardly depending flange 36 and a rear outwardly depending flange 38. The conical lead 11 is then connected to the flange 18 of the hose adaptor 6 at the leading flange 34 as shown in Figure 10.
A fishing and releasing tool 44, insertable into the conical lead 11, is then gripped by the crane hook 30 and cables 32 and lowered into the conical lead 11 which is dimensioned to receive the fishing and releasing tool 44. The fishing and releasing tool 44 is made up of a generally cylindrical portion 46 having dogs 48 movable between a down position in which the fishing and releasing tool engages the conical lead 11 and an up position in which the fishing and releasing tool 44 is releasable from the conical lead 11 as will be described more fully below. The fishing and releasing tool 44 is provided with a rear plate 50 from which the cylindrical portion 46 extends.
The fishing and releasing tool 44 is lowered into the conical lead 11 with the dogs 48 in the up position shown in Figure 14. However, once the fishing and releasing tool 44 is lowered into the conical lead 11, the dogs 48 are moved into the down position shown in Figure 13 to engage the conical lead 11.
The dogs 48 of the fishing and releasing tool 44 are movable between the down and up positions by a releasing cable 52 movable about a pulley 54 mounted within the fishing and releasing tool 44.
With the dogs 48 in the down position, the clamps 16 of the auxiliary device 15 are opened and the assembled hose components 5 are lifted in the caisson 4 by the crane. The continuous flexible hose 9 made up of the interconnected hose adaptors 6 and flexible hose components 5 are then lowered in the caisson 4. Once the conical lead 11 is disposed at the caisson outlet 8 the dogs 48 of the fishing and releasing tool 44 are moved to the up position by releasing cable 52 to disengage the conical lead 11 and the fishing and releasing tool 44. The fishing and releasing took 44 is then removed from the conical lead 11 and withdrawn from the caisson 4. The auxiliary device 15 is then removed from the caisson 4.
As the assembled continuous hose 9 is lowered into the sea within the caisson 4, the sea water supports the weight of the continuous hose 9 to assist the crane. Accordingly, the invention facilitates the installation of long length risers and the modification of the riser length employing the auxiliary clamping device 15 and the fishing and releasing tool 44. In order to dismantle the flexible hose 9 the aforementioned process is repeated in reverse.
The caisson 4 of the invention can be incorporated into new build FPSO's or retrofitted as required. The caisson 4 can be located internally or externally on the FPSO.
The assembly of the invention is not constrained by crane height while the caisson can be fitted internally or externally. More particularly, unlike known sea water intake risers, the system of the invention is not restricted by crane height or capacity as the riser is formed in the caisson according to the length of riser required while the crane is not required to support an excessive weight of riser during assembly/disassembly due to the reduced submerged weight of the riser extending from the caisson.
In addition, the system of the invention is cheaper to assemble/disassemble than prior art systems as the riser does not require any underwater assembly or disassembly. Similarly, maintenance costs of the system of the invention are reduced as maintenance operations may not require diver support .

Claims

1. A riser system comprising a caisson, a hose extendable through the caisson formed from a plurality of hose components, clamping means moveable between an open position and a closed position for supporting the hose at a caisson inlet and elevator means for raising and lowering the hose in the caisson.
2. A riser system as claimed in Claim 1 characterised in that the hose comprises a plurality of hose components interconnected by adaptors.
3. A riser system as claimed in Claim 2 characterised in that the clamping means is moveable between a closed position in which the adaptor or a hose component is gripped by the clamping means and an open position.
4. A riser system as claimed in Claim 2 or Claim 3 characterised in that the elevator means is connectable with the adaptor.
5. A riser system as claimed in any of Claims 2 to 4 characterised in that the system further comprises sealing means for sealing the hose in the caisson.
6. A riser system as claimed in Claim 5 characterised in that the system further includes a tool engageable with the sealing means for raising and lowering the hose in the caisson.
7. A riser system as claimed in Claim 6 characterised in that the tool comprises releasable gripping means for gripping the sealing means.
8. A riser system as claimed in Claim 7 characterised in that the tool is slidable in the caisson and the releasable gripping means are moveable between a first position in which the sealing means is gripped by the gripping means and a second position in which the gripping means are released by the tool and the tool can be extracted from the caisson.
9. A method of installing a sea water riser system comprising passing a hose through a caisson from the interior or exterior of a vessel.
10. A method as claimed in Claim 9 further comprising the step of assembling the hose in the caisson.
11. A method as claimed in Claim 10 characterised in that the hose is assembled from flexible hose components.
12. A method as claimed in Claim 10 or Claim 11 characterised in that the step of assembling the hose comprises interconnecting the flexible hose components with adaptors.
13. A method as claimed in any of Claims 10 to 12 further comprising the step of supporting the flexible hose component/adaptor at a caisson inlet during assembly.
14. A method as claimed in any of Claims 10 to 13 further comprising the step of lowering the hose into the caisson following assembly of each flexible hose component .
15. A method as claimed in any of Claims 10 to 14 further comprising the step of attaching a sealing means to the flexible hose to define a seal between the flexible hose and the caisson.
16. A method as claimed in Claim 15 further comprising the step of lowering the hose and sealing means in the caisson with a tool to extend the hose from the caisson.
17. A method as claimed in Claim 16 further comprising the step of removing the tool from the caisson following lowering of the hose in the caisson.
18. A riser assembly comprising a caisson and a hose extendable from the caisson.
19. A riser assembly as claimed in Claim 18 characterised in that the hose comprises a plurality of hose components.
20. A riser assembly as claimed in Claim 19 characterised in that the hose comprises an adaptor between the hose components .
PCT/GB2002/003184 2001-07-12 2002-07-11 Riser system for water intake WO2003006783A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02751305A EP1404942A1 (en) 2001-07-12 2002-07-11 Riser system for water intake
BR0211113-6A BR0211113A (en) 2001-07-12 2002-07-11 Upright system, method of installing a seawater upright system, and upright assembly
KR10-2004-7000475A KR20040027875A (en) 2001-07-12 2002-07-11 Riser system for water intake

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0117016.6A GB0117016D0 (en) 2001-07-12 2001-07-12 Riser system
GB0117016.6 2001-07-12

Publications (1)

Publication Number Publication Date
WO2003006783A1 true WO2003006783A1 (en) 2003-01-23

Family

ID=9918372

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/003184 WO2003006783A1 (en) 2001-07-12 2002-07-11 Riser system for water intake

Country Status (5)

Country Link
EP (1) EP1404942A1 (en)
KR (1) KR20040027875A (en)
BR (1) BR0211113A (en)
GB (1) GB0117016D0 (en)
WO (1) WO2003006783A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008017937A1 (en) * 2006-08-09 2008-02-14 Emstec Gmbh & Co Kg Improvements in or relating to water suction hoses
FR2958303A1 (en) * 2010-03-30 2011-10-07 Dcns OFFSHORE INSTALLATION OF ELECTRIC POWER PRODUCTION
US9022128B2 (en) 2010-11-18 2015-05-05 Shell Oil Company Water intake riser assembly for an off-shore structure, and method of producing a liquefied hydrocarbon stream and method of producing a vaporous hydrocarbon stream
WO2015150416A1 (en) * 2014-03-31 2015-10-08 Shell Internationale Research Maatschappij B.V. Floating structure comprising a water intake riser bundle, method of producing a liquefied hydrocarbon stream and method producing a vaporous hydrocarbon stream
GB2532735A (en) * 2014-11-25 2016-06-01 Emstec Gmbh Improvement in or relating to water suction hoses
GB2532736A (en) * 2014-11-25 2016-06-01 Emstec Gmbh An improved seawater suction system
WO2016144158A1 (en) * 2015-02-23 2016-09-15 Sbm Schiedam B.V. Water intake system and floating vessel equipped with such a system
WO2016156521A1 (en) * 2015-04-02 2016-10-06 Trelleborg Industrie Sas Sea water suction hose system
FR3049977A1 (en) * 2016-04-12 2017-10-13 Dcns MOUNTING / DISASSEMBLY INSTALLATION OF A FLEXIBLE WATER PUMPING PIPE
WO2018087595A1 (en) * 2016-11-10 2018-05-17 Single Buoy Moorings, Inc. Seawater intake riser interface with vessel hull
CN113853335A (en) * 2019-03-12 2021-12-28 瑞士单浮筒系泊公司 Seawater introducing riser system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101334032B1 (en) * 2011-08-26 2013-11-28 조철현 Vertical Flexible Tube for Marine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538955A (en) * 1967-10-16 1970-11-10 James H Anderson Suspended submarine pipe construction
JPS5497984A (en) * 1978-01-18 1979-08-02 Kawasaki Heavy Ind Ltd Plant barge
JPS55148688A (en) * 1979-05-11 1980-11-19 Mitsubishi Heavy Ind Ltd Water intake and discharge device for fresh water processing plant ship
GB1594535A (en) * 1978-05-16 1981-07-30 Sub Sea Int Construction and installation of marine risers
US4294564A (en) * 1978-08-21 1981-10-13 Global Marine Inc. Method of deployment, release and recovery of ocean riser pipes
US4298295A (en) * 1978-03-03 1981-11-03 Tecnomare S.P.A. Composite flexible conduit for sucking large volumes of sea water from deep water bodies
US4497342A (en) * 1983-06-20 1985-02-05 Lockheed Missiles & Space Company, Inc. Flexible retractable cold water pipe for an ocean thermal energy conversion system
WO2000048899A1 (en) * 1999-02-16 2000-08-24 Buitendijk Holding B.V Floating offshore construction, and floating element

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538955A (en) * 1967-10-16 1970-11-10 James H Anderson Suspended submarine pipe construction
JPS5497984A (en) * 1978-01-18 1979-08-02 Kawasaki Heavy Ind Ltd Plant barge
US4298295A (en) * 1978-03-03 1981-11-03 Tecnomare S.P.A. Composite flexible conduit for sucking large volumes of sea water from deep water bodies
GB1594535A (en) * 1978-05-16 1981-07-30 Sub Sea Int Construction and installation of marine risers
US4294564A (en) * 1978-08-21 1981-10-13 Global Marine Inc. Method of deployment, release and recovery of ocean riser pipes
JPS55148688A (en) * 1979-05-11 1980-11-19 Mitsubishi Heavy Ind Ltd Water intake and discharge device for fresh water processing plant ship
US4497342A (en) * 1983-06-20 1985-02-05 Lockheed Missiles & Space Company, Inc. Flexible retractable cold water pipe for an ocean thermal energy conversion system
WO2000048899A1 (en) * 1999-02-16 2000-08-24 Buitendijk Holding B.V Floating offshore construction, and floating element

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 003, no. 122 (M - 076) 13 October 1979 (1979-10-13) *
PATENT ABSTRACTS OF JAPAN vol. 005, no. 018 (M - 053) 3 February 1981 (1981-02-03) *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008017937A1 (en) * 2006-08-09 2008-02-14 Emstec Gmbh & Co Kg Improvements in or relating to water suction hoses
FR2958303A1 (en) * 2010-03-30 2011-10-07 Dcns OFFSHORE INSTALLATION OF ELECTRIC POWER PRODUCTION
WO2011124820A3 (en) * 2010-03-30 2012-08-30 Dcns Offshore installation for producing electrical energy
US8955450B2 (en) 2010-03-30 2015-02-17 Dcns Offshore installation for producing electrical energy
US9022128B2 (en) 2010-11-18 2015-05-05 Shell Oil Company Water intake riser assembly for an off-shore structure, and method of producing a liquefied hydrocarbon stream and method of producing a vaporous hydrocarbon stream
AU2015239605B2 (en) * 2014-03-31 2018-02-08 Shell Internationale Research Maatschappij B.V. Floating structure comprising a water intake riser bundle, method of producing a liquefied hydrocarbon stream and method producing a vaporous hydrocarbon stream
WO2015150416A1 (en) * 2014-03-31 2015-10-08 Shell Internationale Research Maatschappij B.V. Floating structure comprising a water intake riser bundle, method of producing a liquefied hydrocarbon stream and method producing a vaporous hydrocarbon stream
GB2532735A (en) * 2014-11-25 2016-06-01 Emstec Gmbh Improvement in or relating to water suction hoses
GB2532736A (en) * 2014-11-25 2016-06-01 Emstec Gmbh An improved seawater suction system
US10060558B2 (en) 2014-11-25 2018-08-28 Emstec Gmbh Water suction hoses
WO2016144158A1 (en) * 2015-02-23 2016-09-15 Sbm Schiedam B.V. Water intake system and floating vessel equipped with such a system
WO2016156521A1 (en) * 2015-04-02 2016-10-06 Trelleborg Industrie Sas Sea water suction hose system
FR3049977A1 (en) * 2016-04-12 2017-10-13 Dcns MOUNTING / DISASSEMBLY INSTALLATION OF A FLEXIBLE WATER PUMPING PIPE
WO2017178488A1 (en) * 2016-04-12 2017-10-19 Dcns Installation for assembling/dismantling a flexible water-pumping pipe
WO2018087595A1 (en) * 2016-11-10 2018-05-17 Single Buoy Moorings, Inc. Seawater intake riser interface with vessel hull
US10967949B2 (en) 2016-11-10 2021-04-06 Single Buoy Moorings, Inc. Seawater intake riser interface with vessel hull
CN113853335A (en) * 2019-03-12 2021-12-28 瑞士单浮筒系泊公司 Seawater introducing riser system
CN113853335B (en) * 2019-03-12 2024-10-11 瑞士单浮筒系泊公司 Seawater intake riser system

Also Published As

Publication number Publication date
EP1404942A1 (en) 2004-04-07
BR0211113A (en) 2004-06-22
KR20040027875A (en) 2004-04-01
GB0117016D0 (en) 2001-09-05

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