CN106030178A - Highly resistant flexible tubular conduit and production method - Google Patents
Highly resistant flexible tubular conduit and production method Download PDFInfo
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- CN106030178A CN106030178A CN201480076461.5A CN201480076461A CN106030178A CN 106030178 A CN106030178 A CN 106030178A CN 201480076461 A CN201480076461 A CN 201480076461A CN 106030178 A CN106030178 A CN 106030178A
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- sheath
- flexible tubular
- armor
- pipeline
- pressure
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 29
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 26
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 26
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 19
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 19
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 14
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 37
- 239000002184 metal Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000004215 Carbon black (E152) Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 5
- 239000004696 Poly ether ether ketone Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 229950000845 politef Drugs 0.000 description 4
- 229920002530 polyetherether ketone Polymers 0.000 description 4
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920001774 Perfluoroether Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a method for producing a flexible tubular conduit (10) for transporting hydrocarbons, and to a flexible tubular conduit produced thereby. Said method is of the type comprising the following steps: a) a thermoplastic fluoropolymer that can be shaped in the melted state is supplied; b) said fluoropolymer is shaped in the melted state in order to produce a sealed tubular sheath (12) having an inner wall (21); and, c) armouring wires are spiralled around said sealed tubular sheath (12) in order to form an assembly of layers of armouring wires (14, 16, 18); while the inner wall (21) is left free.
Description
Technical field
The present invention relates to a kind of method for manufacturing flexible tubular pipeline, and relate to one and utilize described side
The flexible tubular pipeline that method obtains.
Background technology
One it is contemplated that application be the application of flexible tubular pipeline used in hydrocarbon transport field
Field, it is at normative document API 17J disclosed in American Petroleum Institute, " Specification for
Unbonded Flexible Pipe ", API 16C, " Choke and Kill Systems " and API 7K,
Described in " Rotary Drilling Hose ".
The flexible tubular pipeline being intended to transport hydrocarbon generally includes internal sealing sheath, and internal sealing sheath is by gathering
Laminate material manufacture also limits flow path, and hydrocarbon or mud can within it flow.Additionally, inner sealing
The pressure support member (vault) that the tangible line (shaped wire) that on the one hand sheath is wound around with short pitch is made
Cover, so as to opposing is circulated in internal sealing sheath by fluid and drawn by varying hydrostatics
The radial stress risen, and be on the other hand coated with by by the thread stretching of the metal being wound around with long-pitch
Armor, this stretching armor is intended to partly or wholly absorb the tension load being applied to tubular pipeline
Load with inner radial.It addition, stretching armor is generally covered by outside sealing sheath, outside seals
Sheath is intended to prevent water from passing through armor and pressure support member enters.Internally positioned sealing sheath and outside sealing
Region between sheath includes that pressure support member and at least one stretching armor limit pipeline
Annular space.No matter these preventive measures, outside sealing sheath can use the flexible tubular pipe on sea bed
Just bore a hole during road, and have the water of pressure can enter pipeline thickness and internally sealing sheath apply footpath
To load.When it happens, and when the hydrocarbon in internal sealing sheath pressure decline time, this sheath has
Itself subside and impaired tendency.
Therefore, in order to overcome such situation, flexible tubular pipeline is equipped with gold in internal-pressure sheath
Belonging to the body, it is become the angle close to 90 ° by with short pitch spiral with the longitudinal axis about flexible tubular pipeline
The interlocked metallic band being wound around is made.Such flexible tubular pipeline is by its english name " rough bore
(rough-bore) " known.
On this, the service condition of flexible tubular pipeline becomes more severe, because the production of hydrocarbon is more
The deepest offshore water is carried out.Therefore, hydrocarbon is the warmmest, and it is apparent that varying hydrostatics is bigger.
Thus, particularly for high temperature and the chemical nature of these hydrocarbon of opposing, utilize the material with excellent properties
The sealing sheath made, and particularly thermoplastic materials fluoropolymer.Refer to document WO96/30687,
Which depict a kind of flexible tubular pipeline, it is equipped with the interior metal body, and this body is coated with thermoplastic materials
Fluoropolymer seal sheath.
Thus, in the first step in the manufacture of flexible tubular pipeline, fluoropolymer sheath is coaxially
It is expressed on the metal body.Once this sheath has been extruded, and therefore this sheath is shelved against the metal body.
Its inwall thus follows the roughness of the metal body because polymer before it cools down completely still in viscous
Sexual state.After this, the sealing sheath thus supported by the metal body is one after the other coated with spiral winding
Layer of armor wires.
But, the incipient crack discontinuous portion in the metal body is in the inwall of sealing sheath to be sent out
Existing.On this, if pipeline reduces pressure suddenly, the residual stress produced at these discontinuous portions can be led
Cause the decohesion (decohesion) of sealing sheath.And, it was observed that the local of sealing sheath is gone to mould
, and this damages its mechanical performance (deplastification).
Summary of the invention
Therefore, generation and the present invention seek solve a problem be can be in harsh marine environment
Sealed tubular sheath is retained during the service life of pipeline.
To this end, according to the first theme, the present invention proposes, a kind of method for manufacturing flexible tubular pipeline,
Described pipeline is intended for the transport of hydrocarbon, said method comprising the steps of: a) provide thermoplastic fluorine-containing
Polymer, it can shape in molten state；B) described thermoplastic fluoropolymer is made to become in molten state
Shape, in order to obtain the sealed tubular sheath with inwall；And c) make armoury wire around described sealed tubular
Sheath is spirally wound, to form one group of layer of armor wires；And in step b), described inwall is certainly
By.
Thus, a feature of the present invention is, makes fluoropolymer shape in molten state, in order to produce
Raw sealed tubular sheath.Especially, once it has been formed, when polymer is still in rubbery state,
The inwall of tubular sheath is freely, and therefore develops towards solid-state in free air.Further, tubulose
The inwall of sheath can be freely during optional heat treatment step, and this heat treatment step is in fusing
Performing after the step that state shapes, during this step, it is maintained at the constant temperature of below its fusing point
During determining time span, the most controlled cooling.Thus, with compared with the method for prior art
(in the prior art, the inwall of tubular sheath is directly against the metal body with roughness and gap
Shell), according to the present invention, the cooling of inwall is consistent towards the transformation of solid-state with it and equably at inwall
Occur on whole cylindrical surface.Therefore, the inwall of tubular sheath there is no incipient crack or residual stress
Occur.Therefore, the service life of tubular sheath in pipeline is added.In addition and surprisingly,
Do not have the metal body the most fatal to internal tubular sheath, even if when flexible tubular Pipe installing is at profound degree
Place and transmit heat hydrocarbon time.The flexible tubular pipeline not having the metal body is known, and English by it
Term " smooth bore orifice (smooth-bore) " pipeline is known.But, they are used under given conditions,
Under the conditions of described, varying hydrostatics is low, i.e. close to the surface of the marine environment in the case of offshore,
And/or environment transmits fluid on the coast, fluid or hydrocarbon are relatively acid, and have gas.
Hence it can be seen that there is no the interior metal body and use under the conditions of harsh temperature and pressure
The quality of the inner tubular sheath that the shortcoming of flexible tubular pipeline is obtained during fabrication significantly compensates.These
Technical quality is associated by the dissipation of jacket thickness with mechanical stress, and relevant to not having incipient crack
Connection.Especially, the fact that inner tubular sheath is not expressed into the metal body polymeric material heat is allowed to receive
Contracting, this thus reduces residual stress.
It is contemplated that the flexible tubular pipeline without the interior metal body by the material manufacture of less creep,
Described material such as PEEK, it represents polyether-ether-ketone (polyetheretherketone).But, these materials
Material has two major defects.First, they have excessive rigidity, it means that they need very
Big bending radius.And therefore, at manufacture level, it needs the biggest bobbin, and in use anticipates
Taste it and can not be had and the compatible structure of free space on such as drilling platform.Second aspect exists
In, during Tg high temperature above ripening (Tg is about 145 DEG C for PEEK), matrix becomes harder,
Elongation attribute substantially reduces.Substantially 20% to 5% loses, and this loads some with high dynamic stress and does not holds concurrently
Hold.
A particularly advantageous embodiment according to the present invention, it is provided that thermoplastic fluoropolymer, it has
Higher than 300 DEG C or the fusing point of even above 310 DEG C.Therefore, the ability of its transport resisting hot hydrocarbon will
Correspondingly it is enhanced.Preferably, it is provided that manufacture the perfluoralkoxy of sealed tubular sheath.
Unlike politef, perfluoralkoxy is prone to work in the blown state, and has phase
Same mechanical strength and chemical resistance are elastic.Relatively, perfluoralkoxy the most poly-to creep four
Fluorothene is the most sensitive.
Additionally, during process in the blown state, the described inwall of tubular sheath is formed to obtain light
Sliding inner surface.Therefore, when not having uneven surface to spend, inwall even on all four mode from rubber
Gluey state is towards the differentiation of solid-state.
Preferably, pressure armoury wire is wound around with sealed tubular sheath described in short pitch spiral winding, to form energy
Enough renitent pressure armors.The outer wall of this pressure armor sealed tubular sheath will press against pressure
The inwall of power armor allows to absorb inside and outside radial stress especially, described stress by
The varying hydrostatics that the pressure of the hydrocarbon in sealed tubular sheath and external environment condition apply causes.Favorably
Ground, creep resistant layer is applied between internal sealing sheath 12 and pressure armor 14, in order to limit fluorine-containing
The discontinuous portion that polymer creep is formed to the adjacent circle of pressure support member.It addition, multiple stretching armoury wires
It is wound around with pressure armor described in long-pitch spiral winding, to form at least one stretching that can resist stretching
Armor.Stretching armoury wire is intended to absorb and is applied to the tensile force of flexible tubular pipeline, and partially or fully
Ground absorbs the internal pressure applied in sealed tubular sheath along its hydrocarbon flowed.When flexible tubular pipeline
When hanging from the surface of marine environment and extend to below sea bed, these tensile forces are applied naturally.Separately
Outward, water depth is the biggest, and these power are the highest.
It addition, according to another step, the outside sealing sheath being made up of polymeric material is advantageously around institute
State group layer of armor wires to be formed, in order to prevent from including the annular space of the flexible tubular pipeline of this group layer of armor wires
Overflow, because these lines are formed from steel, will corrode more quickly if they contact with water.
Preferably, the method also includes another step, and wherein, metal level protects around outside sealing of one
Set is formed, such as the metal body, pressure support member or even stretch armouring.
According to second aspect, the present invention relates to a kind of flexible tubular pipeline, it is intended for the transport of hydrocarbon,
On the one hand described flexible tubular pipeline includes sealed tubular sheath, its formed by thermoplastic fluoropolymer and
Having inwall, and on the other hand include one group of layer of armor wires, it twines spirally around described sealed tubular sheath
Around.The described inwall of described sealed tubular sheath is the most freely.The advantage of such pipeline is main
Stem from the said method manufacturing it.So, the described thermoplastic fluoropolymer used preferably has
There are the fusing point higher than 300 DEG C, or the fusing point of even above 310 DEG C.One according to the present invention has especially
The feature of profit, described thermoplastic fluoropolymer is perfluoralkoxy.It addition, described inwall tool
There is smooth inner surface.It does not the most have roughness or incipient crack.
Preferably, described group of layer of armor wires includes pressure armoury wire, and it is to seal described in short pitch spiral winding
Tubular sheath is wound around, can renitent pressure armor with formation.Further, described group of layer of armor wires
Including multiple stretching armoury wires, it is wound around with pressure armor described in long-pitch spiral winding, can with formation
At least one stretching armor of opposing stretching.It addition, flexible tubular pipeline also includes outside sealing sheath,
It is made up of polymeric material and around described group of layer of armor wires location.
Accompanying drawing explanation
The further feature of the present invention and advantage reading as non-limiting example and will be given with reference to the accompanying drawings
One specific embodiment of the present invention following description time become apparent from, in the accompanying drawings:
Fig. 1 is the schematic perspective cut away view of the flexible tubular pipeline obtained according to the method according to the invention；
With
Fig. 2 is the flow chart of each step of the method according to the invention.
Detailed description of the invention
With reference first to Fig. 1, in order to describe the flexible tubular pipeline 10 obtained according to the method according to the invention
Each element.
Thus, flexible tubular pipeline 10 from inside to outside includes: internal sealing sheath 12, pressure support member or
Pressure armor 14, two stretching armor 16,18 and outside sealing sheath 20.
Internal sealing sheath 12 is the fluoropolymer sheath of extrusion, its objective is to constrain in pipeline 10
The hydrocarbon flowed along it against its inwall 21.For manufacture fluoropolymer sheath 12 method will with
Under be described in more detail in the description.Preferably, perfluoro alkoxy (perfluoroalkoxy) is utilized to be polymerized
Thing material, is formed sealing sheath 12 by it.This material is except at mechanical attributes and opposing chemical agent
Ability aspect has the advantage that outside having premium properties, its can easily by generally by with
In the extruder extrusion forming sealing sheath.This is not the feelings of such as PTFE (representing politef)
Condition, it can be only by relating to the method migration of compression molded PTFE powder, and thus obtained parts are then
At high temperature sinter, cause powder particle to lump；Or alternatively, extruded by the crystal grain of hyperspecialization
(granular extrusion) process (referred to as " RAM extrusion ") is changed, wherein, and piston machine extruder (piston
Fan extruder) it is fed with presintering powder, presintering powder is then at the mould being positioned at heating capsule
It is squeezed in tool, in order to by the particle fusion of powder together.
In the case of pressure support member 14 (its be also referred to as at this pressure armor), this is adjoined by with short pitch
Adjacent pitch of the laps becomes close to the angle of 90 ° around internal sealing sheath 12 with the longitudinal axis relative to flexible tubular pipeline
The tangible metal wire being wound around is formed.It is possible to absorb with in pipeline 10 along its fluid flowed
The radial force of pressure correlation connection and the radial force that is associated of varying hydrostatics applied with surrounding.
For stretching armor or synusia 16,18, they have absorption tensile force and hydrocarbon protects at inner sealing
Along the effect of its internal pressure flowed in set 12, described tensile force is longitudinally applied to flexible tubular
Pipeline 10, particularly when flexible tubular pipeline 10 is suspended between sea bed and the surface of offshore environment.
These armouring synusia 16,18 are overlapped multiple armour wires by two respectively and constitute, and described two overlap multiple metals
Armoury wire in opposite direction and becomes 20 ° with the longitudinal axis relative to flexible tubular pipeline with long-pitch spiral
It is wound around to the angles of 55 ° around pressure support member 14.In FIG, they intersect, in order to equilibrium torsion load
Retroaction.Thus, pressure armor 14 constitutes one group of formation enhancement layer with stretching armor 16,18
Layer of armor wires.
The outside sealing sheath 20 of the protectiveness being made up of polymeric material is extruded around armouring synusia 16,18.
It is also possible to apply the invention to the pipeline without outside sealing sheath.Additionally, such as retaining layer or wear-resistant
Layer other layers (owing to they are optional, so being shown without) can cover stretching armouring synusia 16,
18 or plant in-between.Retaining layer include at least one with short pitch spiral winding stretching armouring synusia 16,
18 bands being wound around.These stretching armouring synusia 16,18 are provided and pin down, to prevent they swelling by it.
Wear-resistant friction layer includes at least one band being wound around with short pitch spiral winding stretching armouring synusia 16, in order to anti-
Only stretching armouring synusia 16,18 is by the wear phenomenon caused that rubs together.
Alternatively, such as the metal body, pressure support member or stretching armor such external metallization enhancement layer
It is wound around around the outside sealing sheath 20 of protectiveness alternatively, in order to effectively protect it from any outside exergy dissipation
Evil.
Referring now to Fig. 2 to describe according to each in the method being used for manufacturing flexible tubular pipeline of the present invention
Step.
According to first step a), thermoplastic fluoropolymer (such as perfluoralkoxy) is with granule
Form or supply in powder form.This polymer has politef at fusing point (because fusing point is close to 327
DEG C, the fusing point of perfluoralkoxy is about 307 DEG C) and (elastic because of it in mechanical aspects
Modulus is close to 600MPa) all advantages.Additionally, it also has the chemical inertness of excellence.As right
Ratio, it can be forced out, unlike politef.Its fluidity index (fluidity index, with
Its MFR is characterized, and it represents fusing flow velocity, and the applying at 5kg loads and surveys at a temperature of 372 DEG C
Amount) such as it is included in 0.5 to 15g/10min, it is therefore preferable to 1.5 to 3g/10min.
This fluoropolymer with granule or is supplied in powder form, and is loaded in extruder, in order in step
Rapid b) middle shaping.Extruder includes fluoropolymer storage bucket in upstream, includes for extruding in downstream
The head of tubular sheath.Storage bucket and extruder head are connected to each other by being equipped with the worm screw of heater element, with
Just on the one hand fluoropolymer is become molten state from solid-state, and on the other hand it is driven with molten state
Move and pass through extruder head.Extruder head has annular compartment, and the fluoropolymer of molten state axially flows logical
Cross this chamber, in order to when leaving the lip of extruder formed have such as 0.5 to 2cm thickness and
Having the cylindricality layer of the diameter of 5.08cm (2 ") to 50.8cm (20 "), this diameter is preferably 7.62cm
(3 ") to 15.24cm (6 ").
Advantageously, extruder head is equipped with supersonic generator (sonotrode), thus high power sound wave or
Ultrasound wave can be generated as causing definite part directly to contact with melt polymer, and particularly those are near squeezing
The part that outlet of lifting one's head positions, there, melt polymer vibrates with its peak viscosity.These vibrations
There is the frequency of 1 micron of amplitude to 0.01 millimeter of magnitude and 5 kilo hertzs to 200 kilo hertzs by reducing
The coefficient of friction of metal-polymer interface and have so that polymer is easier to the effect of flowing.
Further, cylindricality layer is extruded with low speed, because the fluoropolymer of molten state leaves extrusion at it
It is sensitive that phenomenon sheared by material during head.The interpolation of additive (such as boron nitride) allows to eliminate this undesirably
Some effects.
Cylindricality layer is driven towards cooling system (such as sorter, it is therefore preferable to vacuum sorter), with
Just on the one hand the overall diameter of pipeline is fixed on desired size, on the other hand cools down this layer in a controlled manner.
Sorter includes one group of tool piece, and tool piece is machined into shape and the quilt of the profile of axial symmetry cylindricality layer
The temperature of regulation.Such as, sorter is liner type, style type or eckband type, or alternatively dry lining
Set type.In the thickness of the wall that passage is machined into sorter, and the circulation of permission coolant, described
Coolant such as water.Therefore, they cooling axisymmetrical or the cylindricality layer that represents circular symmetry degree.And
And, the inner surface (outer surface of cylindricality layer slides on the internal surface) of sorter has multiple wearing
Hole.These perforation are connected to vacuum pump via pipe.Thus, the hot wall of cylindricality layer is by suction securely
It is held against the inner surface of sorter, thus cylindricality layer is maintained at intended shape along with its solidification.Layer
The positive pressure difference set up between outside and its inner side under ambient pressure under suction makes can
To guarantee the inwall 21 not bending of layer itself, and it is thus along with the fluoropolymer logistics of molten state
Move and form axial symmetry tubular sheath.
After having passed through sorter, tubular sheath is driven by axial translation, even if it is only locally cooled.
In order to be wound into holder after completing its solidification and allowing it, tubular sheath is drawn towards cooler bin
Lead.Cooling is occurred by submergence, preferably occurs by spraying.This tubulose then producing sealing protects
Set, the surface of its inwall 21 does not has roughness and is smooth.This is because, during cooling stage
Inwall 21 is freely, it means that residual surface stress is quilt during this stage causing flat surfaces
Reuptake.Advantage under this material context is, in molten state, it is the most transparent,
Allow to visually detect the existence of any bubble or pollutant.In view of finished product structure by experience very
High pressure and temperature level, this is particular importance.
It follows that in third step c), one after the other utilize line coiler and armouring laydown machine, before
This group layer of armor wires mentioned will be wound around around this rigid seal tubular sheath spirally.
In the 4th step d), sealed tubular sheath is then coated with this group layer of armor wires, is re-driven
By extruder, thus apply the sealing protection performance sheath being made up of polymeric material, this polymeric material
It it is necessarily fluoropolymer.
Also it is subject of the present invention according to the flexible tubular pipeline that said method obtains.
Consequently, because tubular pipeline does not have the body, internal sealing sheath 12 is due to manufacture subsequently
Method does not suffers from and the interaction of the metal body during cooling and hardening process.Therefore, do not have
The phenomenon having plastics to collapse in the discontinuous portion of the body occurs, and it is poly-that this phenomenon potentially results in subtracting of material
Power and the appearance of crackle.Additionally, do not have the phenomenon of residual stress to occur during the decompression suddenly of pipeline,
This phenomenon can cause bubbling and/or the decohesion of sealing sheath.
Claims (15)
1. the method being used for manufacturing flexible tubular pipeline (10), described flexible tubular pipeline is intended to
For transporting hydrocarbon, said method comprising the steps of:
A) providing thermoplastic fluoropolymer, it can shape in molten state；
B) described thermoplastic fluoropolymer is made to shape in molten state, in order to obtain and have inwall (21)
Sealed tubular sheath (12)；
C) armoury wire is made to be spirally wound around described sealed tubular sheath (12), to form one group of armour
Wiring layer (14,16,18)；
It is characterized in that, in step b), described inwall (21) is freely.
2. manufacture method as claimed in claim 1, it is characterised in that in step a), there is height
Thermoplastic fluoropolymer in the fusing point of 300 DEG C is provided.
3. manufacture method as claimed in claim 1 or 2, it is characterised in that in step a), supply
Answer perfluoralkoxy.
4. the manufacture method as described in any one in claims 1 to 3, it is characterised in that in step
In b), described inwall (21) is formed to obtain slippery inner surface.
5. the manufacture method as described in any one in Claims 1-4, it is characterised in that in step
In c), pressure armoury wire is wound around with sealed tubular sheath (12) described in short pitch spiral winding, with shape
One-tenth can renitent pressure armor (14).
6. manufacture method as claimed in claim 5, it is characterised in that in step c), Duo Gela
Stretch armoury wire to be wound around with pressure armor (14) described in long-pitch spiral winding, stretching can be resisted to be formed
At least one stretching armor (16,18).
7. the manufacture method as described in any one in claim 1 to 6, it is characterised in that it is also
Including step d), wherein, the outside sealing sheath (20) that polymeric material is made is around described group of armouring
Line layer (14,16,18) is formed.
8. manufacture method as claimed in claim 7, it is characterised in that it also includes step e), its
In, metal level is formed around the outside sealing sheath (20) of one.
9. a flexible tubular pipeline (10), it is intended for the transport of hydrocarbon, described flexible tubular pipeline
On the one hand the sealed tubular sheath (12) being formed and having inwall (21) by thermoplastic fluoropolymer is included,
And on the other hand include being spirally wound around described sealed tubular sheath (12) one group of layer of armor wires (14,
16、18)；
It is characterized in that, the described inwall (21) of described sealed tubular sheath (12) is freely.
10. flexible tubular pipeline as claimed in claim 9, it is characterised in that described thermoplastic fluorine-containing
Polymer has the fusing point higher than 300 DEG C.
The 11. flexible tubular pipelines as described in claim 9 or 10, it is characterised in that described thermoplastic
Property fluoropolymer is perfluoralkoxy.
Flexible tubular pipeline as described in any one in 12. such as claim 8 to 10, it is characterised in that
Described inwall (21) has slippery inner surface.
Flexible tubular pipeline as described in any one in 13. such as claim 9 to 12, it is characterised in that
Described group of layer of armor wires (14,16,18) includes pressure armoury wire, and described pressure armoury wire is with short pitch
Sealed tubular sheath described in spiral winding is wound around, can renitent pressure armor (14) with formation.
14. flexible tubular pipelines as claimed in claim 13, it is characterised in that described group of armoury wire
Layer (14,16,18) includes multiple stretching armoury wire, and described stretching armoury wire is with long-pitch spiral winding institute
State pressure armor (14) be wound around, with formed can resist stretching at least one stretching armor (16,
18)。
Flexible tubular pipeline as described in any one in 15. such as claim 9 to 14, it is characterised in that
It also includes that outside sealing sheath (20), described outside sealing sheath (20) are made up of polymeric material
And around described group of layer of armor wires (14,16,18) location.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1363636A FR3016019B1 (en) | 2013-12-27 | 2013-12-27 | HIGH RESISTANCE FLEXIBLE TUBULAR DRIVE AND METHOD OF MANUFACTURE |
| FR1363636 | 2013-12-27 | ||
| PCT/FR2014/053566 WO2015097422A1 (en) | 2013-12-27 | 2014-12-26 | Highly resistant flexible tubular conduit and production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106030178A true CN106030178A (en) | 2016-10-12 |
| CN106030178B CN106030178B (en) | 2021-06-25 |
Family
ID=50231420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480076461.5A Active CN106030178B (en) | 2013-12-27 | 2014-12-26 | High resistance flexible tubular pipe and method of manufacture |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN106030178B (en) |
| BR (1) | BR112016014988B1 (en) |
| DK (1) | DK201670453A1 (en) |
| FR (1) | FR3016019B1 (en) |
| GB (1) | GB2535944B (en) |
| WO (1) | WO2015097422A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110177969A (en) * | 2016-12-22 | 2019-08-27 | Ifp新能源公司 | Petroleum fluids including diffusion barrier convey flexible duct |
| CN110546305A (en) * | 2017-03-16 | 2019-12-06 | 通用电气石油和天然气英国有限公司 | Arrangement of electrical continuity and/or radial support |
| CN111465794A (en) * | 2017-12-08 | 2020-07-28 | 派莱福荷兰私人有限公司 | High pressure pipe with pultruded elements and method for producing the same |
| CN112682586A (en) * | 2019-10-18 | 2021-04-20 | 泰克尼普法国公司 | Flexible pipe for transporting natural gas and/or petroleum fluids submerged in a body of water |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3059072B1 (en) * | 2016-11-18 | 2019-01-25 | Technip France | FLEXIBLE FLUID TRANSPORT DRIVE, ASSOCIATED INSTALLATION AND METHOD |
| WO2018233790A1 (en) * | 2017-06-22 | 2018-12-27 | National Oilwell Varco Denmark I/S | A flexible pipe and a method for equalizing pressure in a flexible pipe |
| US12169043B2 (en) | 2021-05-14 | 2024-12-17 | Saudi Arabian Oil Company | Extruded aliphatic polyketone permeation barrier for spoolable composite pipes |
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2013
- 2013-12-27 FR FR1363636A patent/FR3016019B1/en active Active
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2014
- 2014-12-26 WO PCT/FR2014/053566 patent/WO2015097422A1/en active Application Filing
- 2014-12-26 GB GB1610694.0A patent/GB2535944B/en active Active
- 2014-12-26 CN CN201480076461.5A patent/CN106030178B/en active Active
- 2014-12-26 BR BR112016014988-2A patent/BR112016014988B1/en active IP Right Grant
-
2016
- 2016-06-23 DK DKPA201670453A patent/DK201670453A1/en not_active Application Discontinuation
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| US4202718A (en) * | 1976-12-09 | 1980-05-13 | Kuraray Plastics, Co., Ltd. | Method of and apparatus of manufacturing a fiber-reinforced pressure hose |
| CN1075358A (en) * | 1991-11-05 | 1993-08-18 | 马克尔公司 | The pipeline of fuel system |
| US5934335A (en) * | 1995-03-29 | 1999-08-10 | Coflexip Sa | Flexible tubular pipe with an internal impervious polymeric sheath |
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| CN110177969A (en) * | 2016-12-22 | 2019-08-27 | Ifp新能源公司 | Petroleum fluids including diffusion barrier convey flexible duct |
| AU2017384001B2 (en) * | 2016-12-22 | 2023-12-14 | IFP Energies Nouvelles | Petroleum fluid-conveying flexible pipe comprising a barrier against diffusion |
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| US11499654B2 (en) | 2017-03-16 | 2022-11-15 | Baker Hughes Energy Technology UK Limited | Provision of electrical continuity and/or radial support |
| CN111465794A (en) * | 2017-12-08 | 2020-07-28 | 派莱福荷兰私人有限公司 | High pressure pipe with pultruded elements and method for producing the same |
| CN112682586A (en) * | 2019-10-18 | 2021-04-20 | 泰克尼普法国公司 | Flexible pipe for transporting natural gas and/or petroleum fluids submerged in a body of water |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015097422A1 (en) | 2015-07-02 |
| CN106030178B (en) | 2021-06-25 |
| GB2535944B (en) | 2020-12-02 |
| DK201670453A1 (en) | 2016-07-18 |
| FR3016019A1 (en) | 2015-07-03 |
| GB2535944A (en) | 2016-08-31 |
| FR3016019B1 (en) | 2016-01-01 |
| BR112016014988B1 (en) | 2020-12-08 |
| GB201610694D0 (en) | 2016-08-03 |
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