US20110192484A1 - Flexible pipe - Google Patents

Flexible pipe Download PDF

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Publication number
US20110192484A1
US20110192484A1 US13/122,949 US200913122949A US2011192484A1 US 20110192484 A1 US20110192484 A1 US 20110192484A1 US 200913122949 A US200913122949 A US 200913122949A US 2011192484 A1 US2011192484 A1 US 2011192484A1
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US
United States
Prior art keywords
flexible pipe
segment
pipe body
riser
buoyancy
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.)
Abandoned
Application number
US13/122,949
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English (en)
Inventor
Judimar de Assis Clevelario
Fabio de Souza Pires
Claudio Cezario de Barros
Rafael Goes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Energy Technology UK Ltd
Original Assignee
Wellstream International Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40083741&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20110192484(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wellstream International Ltd filed Critical Wellstream International Ltd
Assigned to WELLSTREAM INTERNATIONAL LIMITED reassignment WELLSTREAM INTERNATIONAL LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GOES, RAFAEL, CLEVELARIO, JUDIMAR DE ASSIS, DE BARROS, CLAUDIO CEZARIO, PIRES, FABIO DE SOUZA
Publication of US20110192484A1 publication Critical patent/US20110192484A1/en
Assigned to GE OIL & GAS UK LIMITED reassignment GE OIL & GAS UK LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WELLSTREAM INTERNATIONAL LIMITED
Abandoned legal-status Critical Current

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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
    • E21B17/012—Risers with buoyancy elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/015—Non-vertical risers, e.g. articulated or catenary-type
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/017—Bend restrictors for limiting stress on risers
    • 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
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/001—Survey of boreholes or wells for underwater installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • F16L11/083—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire three or more layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F16L11/133—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting buoyant

Definitions

  • the present invention relates to flexible pipes which may be used to convey fluids such as production fluids, exportation fluids or injection fluids from a source to a further location.
  • the present invention relates to a riser or jumper assembly incorporating an intermediate segment of flexible pipe which is used to carry one or more buoyancy elements.
  • Flexible pipe is utilised to transport production fluids, exportation fluids or injection fluids such as oil and/or gas and/or water from one location to another.
  • Flexible pipe is particularly useful in connecting a sub-sea location to a further sub-sea location or a sea level location.
  • Flexible pipe is generally formed as a length of flexible pipe body and one or more end fittings at the ends of the pipe body.
  • the pipe body is typically formed as a composite structure of tubular layers of material that form a fluid and pressure containing conduit.
  • the pipe structure is flexible and allows relatively large deflections without causing bending stresses that impair the pipe's functionality over a desired lifetime.
  • the pipe body is generally, but not necessarily, built up as a composite structure including metallic and polymer layers.
  • Flexible pipe may be utilised as a flow line over land and/or at a sub-sea location. Flexible pipe may also be used as a jumper or riser.
  • a riser is an assembly of one or more segments of flexible pipe connecting a sub-sea source location to a surface station or vessel.
  • a jumper is an assembly of flexible pipe connecting a sub-sea location to a further sub-sea location.
  • buoyancy elements have conventionally been used at desired locations so that in use the riser or jumper assembly adopts a predetermined shape.
  • Conventional buoyancy elements are formed as separate modules manufactured from highly buoyant material or as hollow shells which can be filled with such buoyant material. Such buoyancy modules are conventionally clamped or otherwise secured to desired positions of the flexible pipe.
  • buoyancy modules From time to time it is known that due to a clamping failure buoyancy modules will move from a desired location on the flexible pipe to a non-desired location. In some instances this can lead to failure of the flexible pipe as over-bending can occur.
  • buoyancy modules A still further problem associated with such buoyancy modules is that should the material or integrity of the buoyancy module fail, leading to a lack of buoyancy, a large length of flexible pipe must be recovered and replaced to overcome the failure.
  • a riser or jumper assembly for transporting production, exportation or injection fluids from a source location to a target location, comprising:
  • a method for providing buoyancy to a jumper or riser assembly comprising the steps of:
  • Certain embodiments of the present invention provide a riser or jumper assembly which includes an intermediate segment of flexible pipe terminated with a first and second end fitting.
  • One or more buoyancy elements are securable or are secured to the intermediate segment. Should one or more of the buoyancy elements fail the entire intermediate segment can be replaced in a relatively straightforward manner. Spare segments can be manufactured at the same time that the flexible pipe or flexible pipes making up the riser or jumper are manufactured to facilitate the ease of replacement.
  • Certain embodiments of the present invention provide a riser or jumper assembly in which an intermediate segment of flexible pipe is used having a first and second end fitting. Any movement of a buoyancy element secured to the intermediate segment, for example due to a failure of a clamping element, results only in motion of the buoyancy element within the end constraints provided by the first and second end fittings. In this way movement of buoyancy elements along the riser or jumper is at least limited or can be wholly eliminated.
  • FIG. 1 illustrates flexible pipe body
  • FIG. 2 illustrates a jumper and riser
  • FIG. 3 illustrates an alternative riser configuration
  • FIG. 4 illustrates a riser or jumper assembly
  • FIG. 5 illustrates buoyancy modules secured to flexible pipe body
  • FIG. 6 illustrates replacement of an intermediate segment of flexible pipe.
  • FIG. 1 illustrates how a pipe body 10 is formed in accordance with an embodiment of the present invention from a composite of layered materials that form a pressure-containing conduit. Although a number of particular layers are illustrated in FIG. 1 , it is to be understood that the present invention is broadly applicable to composite pipe body structures including two or more layers. It is to be further noted that the layer thicknesses are shown for illustrative purposes only.
  • pipe body includes an innermost carcass layer 11 .
  • the carcass provides an interlocked metallic construction that can be used as the innermost layer to prevent, totally or partially, collapse of an internal pressure sheath 12 due to pipe decompression, external pressure, tensile armour pressure and mechanical crushing loads. It will be appreciated that embodiments of the present invention are applicable to ‘smooth bore’ as well as such ‘rough bore’ applications.
  • the internal pressure sheath 12 acts as a fluid retaining layer and typically comprises a polymer layer that ensures internal-fluid integrity. It is to be understood that this layer may itself comprise a number of sub-layers. It will be appreciated that when the optional carcass layer is utilised the internal pressure sheath is often referred to as a barrier layer. In operation without such a carcass (so-called smooth-bore operation) the internal pressure sheath may be referred to as a liner.
  • a pressure armour layer 13 is formed over the internal pressure sheath and is a structural layer with a lay angle close to 90° that increases the resistance of the flexible pipe to internal and external pressure and mechanical crushing loads.
  • the layer also structurally supports the internal-pressure sheath and typically consists of an interlocked metallic construction.
  • the flexible pipe body may also include one or more layers of tape 14 and a first tensile armour layer 15 and second tensile armour layer 16 .
  • Each tensile armour layer is a structural layer with a lay angle typically between 20° and 55°. Each layer is used to sustain tensile loads and internal pressure.
  • the tensile armour layers are counter-wound in pairs.
  • the flexible pipe body also includes an outer sheath 17 which comprises a polymer layer used to protect the pipe against penetration of seawater and other external environments, corrosion, abrasion and mechanical damage.
  • an outer sheath 17 which comprises a polymer layer used to protect the pipe against penetration of seawater and other external environments, corrosion, abrasion and mechanical damage.
  • One or more layers 18 of insulation may also be included.
  • Each flexible pipe comprises at least one portion, sometimes referred to as a segment or section of pipe body 10 together with an end fitting located at least one end of the flexible pipe.
  • an end fitting is used at both ends of the segment of flexible pipe body.
  • An end fitting provides a mechanical device which forms the transition between the flexible pipe body and a connector.
  • the different pipe layers as shown, for example, in FIG. 1 are terminated in the end fitting in such a way as to transfer the load between the flexible pipe and the connector.
  • Segments of flexible pipe may be joined together in an end-to-end arrangement to make long lengths of flexible pipe.
  • the adjoined segments may include segments of identical flexible pipe body or segments in which the flexible pipe body has different layers and/or physical properties.
  • FIG. 2 illustrates a riser assembly 20 suitable for transporting production, exportation or injection fluid such as oil and/or gas and/or water from a sub-sea location 21 to a floating facility 22 .
  • the sub-sea location 21 is a connection to a sub-sea flow line 23 .
  • the flexible flow line comprises a flexible pipe, wholly or in part, resting on the sea floor or buried below the sea floor.
  • the floating facility may for example be provided by a platform and/or buoy or, as illustrated in FIG. 2 , a ship.
  • the riser 20 is provided as a flexible riser, that is to say a flexible pipe connecting the ship to the sea floor installation. Alternatively the flexible pipe can be used as a jumper 24 .
  • FIG. 3 illustrates an alternative riser structure connecting a flow line 23 to a surface vessel 22 .
  • the riser has a first part reaching from the seabed flow line 23 to a central suspended region 30 .
  • a further part extends upwards from the central region 30 to the surface vessel.
  • buoyancy modules are secured to the flexible pipe body. The buoyancy of the buoyancy modules and the location of the buoyancy modules is selected so that in use the riser takes a predesigned shape.
  • One advantage of such a riser is that as the surface where the vessel 22 floats rises or dips the only the part of the riser linking the vessel to the central buoyed area flexes. In this way over-bending of the riser can be obviated. It will be appreciated that certain embodiments of the present invention can be used with a wide variety of riser or jumper shapes.
  • FIG. 4 illustrates a riser assembly able to adopt the configuration of the riser illustrated in FIG. 3 .
  • the flow line 23 is terminated at an end with an end fitting 40 .
  • This end fitting is connected in an end-to-end configuration with a further end fitting 41 of a first segment 42 of flexible pipe body.
  • a further end of the flexible pipe body 42 of the first segment is terminated with a further respective end fitting 43 .
  • a bend stiffener 44 is located at the end of the segment 42 of flexible pipe body close to the end fitting 43 .
  • the bend stiffener is tapered so as to offer gradually greater and greater stiffness to the flexible pipe body towards the end fitting 43 . This obviates over-bending as will be appreciated by those skilled in the art.
  • the end fitting 43 of the first segment of flexible pipe body is connected to a further end fitting 45 of an adjacent further segment 46 of flexible pipe body 46 .
  • a further bend stiffener 47 tapers inwardly towards the central region of the adjacent segment 46 of flexible pipe body.
  • a remaining end of the flexible pipe body 46 is terminated with a further end fitting 48 with a respective bend stiffener 49 .
  • the end fitting 48 of the adjacent segment is connected to an end fitting 50 of an intermediate segment 51 of flexible pipe body.
  • the end fitting 50 terminates a first end of the intermediate segment 51 of flexible pipe body.
  • a remaining end of the intermediate segment 51 of flexible pipe body is terminated with a further end fitting 52 .
  • a first bend stiffener 53 is located at an end of the flexible pipe body 51 proximate to a respective end fitting 50 .
  • a further bend stiffener 54 is located proximate to the end fitting 52 terminating the remaining end of the intermediate segment 51 of flexible pipe body.
  • Four buoyancy modules 55 are located in a row at the central region of the intermediate segment 51 of flexible pipe body. It is to be appreciated that whilst four buoyancy modules are indicated one or more buoyancy modules may be utilised according to certain embodiments of the present invention. The buoyancy modules and the method of securing these to the flexible pipe body is described hereinbelow in more detail with reference to FIG. 5 .
  • the end fitting 52 terminating an end of the intermediate segment 51 of flexible pipe body is secured in an end-to-end configuration with a further end fitting 56 of an adjacent segment 57 of flexible pipe body. A remaining end of this adjacent segment 57 of flexible pipe body is terminated with a further end fitting 58 .
  • Bend stiffeners 59 , 60 are located close to respective end fittings 56 , 58 .
  • the end fitting 58 of the adjacent segment 57 of flexible pipe body is connected in an end-to-end configuration with a still further end fitting 61 of an end segment 62 of flexible pipe body.
  • a remaining end of the end segment 62 of flexible pipe body is terminated with a respective end fitting 63 .
  • Respective bend stiffeners 64 , 65 are located proximate to the corresponding end fittings 61 , 63 .
  • one or more segments of flexible pipe are thus provided on either side of an intermediate segment of flexible pipe where buoyancy modules are located. It will be appreciated that rather than the two segments illustrated on either side of the intermediate segment shown in FIG. 2 , one, two or any number of segments may be provided on either side of the intermediate segment. Likewise, it is not essential that the numbers of segments of flexible pipe body are the same on either side of the intermediate segment. It is also to be appreciated that one, two or more intermediate segments of flexible pipe body may be utilised according to certain embodiments of the present invention.
  • FIG. 5 illustrates an alternative intermediate segment 100 of flexible pipe in more detail.
  • the intermediate section of pipe has a first end terminated by an end fitting 150 and a further end terminated by a further end fitting 152 .
  • a length of flexible pipe body 151 is terminated at both ends by a respective one of the end fittings 150 , 152 .
  • the flexible pipe body has a length extending between the two end fittings.
  • a bend stiffener 153 is secured to the first end fitting 150 and a further bend stiffener 154 is secured to the further end fitting 152 at the other end of the segment.
  • Each bend stiffener is a generally tapered device, as will be appreciated by those skilled in the art, used to moderate the stiffness of the flexible pipe from a central region, where flexibility is defined by the characteristics of the flexible pipe body, to the rigid end fittings 150 , 152 .
  • Six buoyancy modules 155 0-5 are located adjacent to each other in a line between the bend stiffeners. Whilst six buoyancy modules are illustrated in FIG. 5 it will be appreciated that any number of buoyancy modules, including one, two or more, may be utilised dependent upon the configuration and amount of buoyancy required in the riser or jumper in use.
  • the buoyancy modules 155 0-5 are secured to the flexible pipe body 151 via a conventional means such as via a clamping mechanism.
  • the intermediate section 100 has an overall length L equal to the combined length of the two end fittings E plus the combined length of the two bend stiffeners B plus the remaining length Z of flexible pipe body between the inner ends of the bend stiffeners.
  • An inwardly facing end 160 of the first bend stiffener 153 provides an abutment surface for any buoyancy module which becomes unsecured from the flexible pipe body 151 .
  • An inwardly facing end 161 of the further bend stiffener 154 likewise provides an abutment surface against which any buoyancy module 155 0 will abut should it become detached from the flexible pipe body.
  • Each buoyancy module itself has a first and further side wall 162 0-5 , 163 0-5 against which adjacent buoyancy modules will abut should they become detached from the flexible pipe body.
  • the distance Z between the abutment ends 160 , 161 of the bend stiffeners can be precisely set so that there is sufficient distance between the buoyancy modules and the ends of the bend stiffeners to allow the flexible pipe to adopt a desired shape during use but with no or little excess room so that should a buoyancy module fail movement of those buoyancy modules is constrained completely or to at least a certain extent.
  • buoyancy module 155 5 at the end of the row is attached to the flexible pipe body 151
  • the buoyancy module will effectively become free to move along the length of the flexible pipe body.
  • its motion is constrained by the abutment surface 160 of the inwardly facing end of the bend stiffener 153 or by a side wall 162 4 of the adjacent buoyancy module 155 4 .
  • FIG. 6 illustrates how the intermediate segment 30 of flexible pipe shown in FIG. 4 may be replaced.
  • the intermediate segment 100 shown in FIG. 5 could be replaced in a similar way. It will be appreciated that such replacement may be required or desired when a part or parts of the flexible pipe segment 30 fail or when the characteristics offered by the intermediate segment 30 are no longer optimum according to characteristics of the environment where the riser or jumper assembly are used. In such a situation the old intermediate section 30 OLD is replaced by a new intermediate section 30 NEW .
  • the end fitting 50 at a first end of the intermediate segment of flexible pipe body can be detached from the adjoining end fitting 48 of the adjacent segment of flexible pipe.
  • the further end fitting 52 of the intermediate segment of flexible pipe can be detached from the end fitting 56 of the further adjacent segment of flexible pipe body.
  • a new intermediate segment 30 NEW is then brought into position and respective end fittings secured together.
  • the replacement intermediate segment may have a similar or different length to the previously used segment. It is highly convenient if the intermediate segment of flexible pipe is manufactured at the same time as the remaining segments of any riser or jumper assembly. One, two or more replacement segments may be manufactured at this time and then stored for later use if needed.
  • Certain embodiments of the present invention thus create a flexible pipe system useable in a wide variety of environments, for example, deep and ultra-deep water operations. Effects of buoyancy module clamp failure are thus minimised by confining the buoyancy modules which are required between two end fittings. These or the bend stiffeners attached to the end fittings act as buoyancy stoppers avoiding modules significantly changing position. This can be achieved whilst having a low impact on system configuration requirements and service life.
  • Certain embodiments of the present invention allow a relatively fast recovery of the flexible pipe system in the case of one or more buoyancy module failures or where a net buoyancy capacity decreases due to module water saturation or flexible pipe structure premature failure.
  • Fast recovery can be achieved by replacing the damaged buoyancy riser or jumper segment by a spare, previously assembled, segment. This eliminates the necessity for offshore pipe completion activities and considerably reduces a time required to restart pipeline operation.
  • the jumper or riser assemblies utilise one or more intermediate segments each having a total length defined by a required buoyancy length plus the length required for the flexible pipes ancillary assembly. This includes end fittings and bend stiffeners and other such devices.
  • the intermediate segment is positioned in the overall jumper or riser system at a specific location defined during global analysis in order to maximise the fatigue service life and guarantee that the flexible pipe operational conditions are respected.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Earth Drilling (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
US13/122,949 2008-10-09 2009-08-14 Flexible pipe Abandoned US20110192484A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0818500.1 2008-10-09
GBGB0818500.1A GB0818500D0 (en) 2008-10-09 2008-10-09 Flexible pipe
PCT/GB2009/051023 WO2010041048A1 (en) 2008-10-09 2009-08-14 Flexible pipe

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/051023 A-371-Of-International WO2010041048A1 (en) 2008-10-09 2009-08-14 Flexible pipe

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/506,401 Continuation US20150144351A1 (en) 2008-10-09 2014-10-03 Flexible pipe and a method for providing buoyancy to a jumper or riser assembly

Publications (1)

Publication Number Publication Date
US20110192484A1 true US20110192484A1 (en) 2011-08-11

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ID=40083741

Family Applications (3)

Application Number Title Priority Date Filing Date
US13/122,949 Abandoned US20110192484A1 (en) 2008-10-09 2009-08-14 Flexible pipe
US14/506,401 Abandoned US20150144351A1 (en) 2008-10-09 2014-10-03 Flexible pipe and a method for providing buoyancy to a jumper or riser assembly
US15/267,023 Expired - Fee Related US9909368B2 (en) 2008-10-09 2016-09-15 Flexible pipe and a method for providing buoyancy to a jumper or riser assembly

Family Applications After (2)

Application Number Title Priority Date Filing Date
US14/506,401 Abandoned US20150144351A1 (en) 2008-10-09 2014-10-03 Flexible pipe and a method for providing buoyancy to a jumper or riser assembly
US15/267,023 Expired - Fee Related US9909368B2 (en) 2008-10-09 2016-09-15 Flexible pipe and a method for providing buoyancy to a jumper or riser assembly

Country Status (8)

Country Link
US (3) US20110192484A1 (da)
EP (1) EP2337923B1 (da)
CN (1) CN102245853B (da)
BR (1) BRPI0920568B1 (da)
DK (1) DK2337923T3 (da)
GB (1) GB0818500D0 (da)
MY (1) MY156900A (da)
WO (1) WO2010041048A1 (da)

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Publication number Priority date Publication date Assignee Title
US20140199124A1 (en) * 2011-05-19 2014-07-17 Wellstream International Limited Buoyancy element, riser assembly including a buoyancy element and a method of supporting a riser
CN103781987A (zh) * 2011-06-16 2014-05-07 韦尔斯特里姆国际有限公司 立管组件及方法
BR112014012864B1 (pt) * 2011-11-29 2021-08-24 Baker Hughes Energy Technology UK Limited Elemento de compensação de flutuabilidade, conjunto de uma pluralidade de elementos de compensação de flutuabilidade e método de provimento de um elemento de compensação de flutuabilidade
EP2662524B1 (en) 2012-05-08 2017-07-26 GE Oil & Gas UK Limited Flexible pipe body with buoyancy element and method of producing same
EA033187B1 (ru) * 2016-12-21 2019-09-30 Общество С Ограниченной Ответственностью "Бийский Завод Стеклопластиков" (Ооо "Бзс") Насосно-компрессорная труба из композиционного материала, содержащая протектор
GB2582601B (en) * 2019-03-29 2021-09-22 Seathor Ltd Hardware and system for supporting subsea flexible lines such as cables, umbilicals and risers

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DK2337923T3 (da) 2013-02-25
BRPI0920568B1 (pt) 2019-10-22
US20170067296A1 (en) 2017-03-09
BRPI0920568A2 (pt) 2015-12-29
WO2010041048A1 (en) 2010-04-15
CN102245853B (zh) 2014-04-30
EP2337923B1 (en) 2012-12-05
CN102245853A (zh) 2011-11-16
US9909368B2 (en) 2018-03-06
MY156900A (en) 2016-04-15
GB0818500D0 (en) 2008-11-19
US20150144351A1 (en) 2015-05-28
EP2337923A1 (en) 2011-06-29

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