EP4359633A1 - Agencement et procédé pour l'installation de lignes de transmission de données et d'énergie électrique sur une colonne montante en acier de type en chaînette ou "lazy-wave" (slwr) - Google Patents

Agencement et procédé pour l'installation de lignes de transmission de données et d'énergie électrique sur une colonne montante en acier de type en chaînette ou "lazy-wave" (slwr)

Info

Publication number
EP4359633A1
EP4359633A1 EP22715327.7A EP22715327A EP4359633A1 EP 4359633 A1 EP4359633 A1 EP 4359633A1 EP 22715327 A EP22715327 A EP 22715327A EP 4359633 A1 EP4359633 A1 EP 4359633A1
Authority
EP
European Patent Office
Prior art keywords
umbilical
riser
section
location
installation
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.)
Pending
Application number
EP22715327.7A
Other languages
German (de)
English (en)
Inventor
Amedeo Marcotulli
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.)
Saipem SpA
Original Assignee
Saipem SpA
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 Saipem SpA filed Critical Saipem SpA
Publication of EP4359633A1 publication Critical patent/EP4359633A1/fr
Pending legal-status Critical Current

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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/0107—Connecting of flow lines to offshore structures
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/0122—Collecting oil or the like from a submerged leakage

Definitions

  • the present invention relates to an arrangement and installation method of data communication and electrical energy transmission lines on off shore double catenary risers, particularly steel lazy wave risers (SLWR).
  • SLWR steel lazy wave risers
  • FPSO Floating Production Storage Offloading
  • the risers are usually made of carefully selected materials or material combinations, such as e.g. metallic materials for rigid risers, multiple composite material layers for flexible risers, so-called umbilical duct structures with dedicated ducting tubes (umbilical) inside an external protection tube, or composite polymeric material in pipes that are used in particularly challenging projects.
  • materials or material combinations such as e.g. metallic materials for rigid risers, multiple composite material layers for flexible risers, so-called umbilical duct structures with dedicated ducting tubes (umbilical) inside an external protection tube, or composite polymeric material in pipes that are used in particularly challenging projects.
  • the multiple and compound catenary shapes such as e.g. the so-called steel lazy wave catenary riser (SLWR) or the dormant riser, in which the tension of the upper portion of the riser is reduced at the expense of an increased length.
  • SLWR steel lazy wave catenary riser
  • dormant riser in which the tension of the upper portion of the riser is reduced at the expense of an increased length.
  • the steel lazy wave catenary riser shape is defined by:
  • a buoyant section extending from the sag bend further upward and forming a hog bend of opposite curvature with respect to the sag bend and defining a highest hog bend point, so that the sag bend and the hog bend define a double curvature section having a vertical arch height (the height difference between the lowest sag bend point and the highest hog bend point) and an inflection location between the sag bend and the hog bend,
  • umbilicals In order to accomplish monitoring functions and operational functions at the riser, along the riser, and at the well on the sea bed, electrical energy and data communication must be provided, both along the extension of the riser and at the seabed. For this purpose it is known to extend so-called umbilicals along the riser itself.
  • the umbelical comprises data signal transmission cables (e.g. copper cables or fibre optical conductors) and/or electrical power cables (e.g. copper cables) protected by an external armature and typically extended and fixed along the riser during its assembly and laying procedure.
  • the aim of the present invention is therefore to propose a new and improved arrangement and a method for the installation of data communication and electrical energy transmission lines on double bend offshore risers, particularly steel lazy wave catenary risers (SLWR), in which the stresses acting on the data/energy transmission umbilical can be reduced without over dimensioning the external armature layer of the umbilical.
  • SLWR steel lazy wave catenary risers
  • a further aim of the invention is to propose a new and improved arrangement and method for the installation of data communication and electrical energy transmission lines, in which the data/energy transmission umbilical does not interfere with the assembly and laying process of the riser and the data/energy transmission umbilical installation does not need to be coordinated or synchronized with the assembly and laying of the riser.
  • a further aim of the invention is to propose a new and improved arrangement and method for the installation of data communication and electrical energy transmission lines, in which the data/energy transmission umbilical is not required to follow the entire path and the entire dynamic deformations of the riser.
  • a further aim of the invention is to propose a new and improved arrangement and method for the installation of data communication and electrical energy transmission lines, in which the data/energy transmission umbilical is intended to be used independently from monitoring of the SLWR riser, for example for cost-effectively providing a power/communications umbilical to any subsea facility for the purpose of energizing, operating and communicating with functional modules of the subsea facility.
  • a further aim of the invention is to propose a new and improved arrangement and method for the installation of data communication and electrical energy transmission lines, in which the data/energy transmission umbilical has different longitudinal traction and pre tension along different sections thereof.
  • the aim of the invention is achieved by an arrangement of an umbilical, containing data communication and electrical energy transmission lines, at a steel lazy wave catenary riser, according to claim 1 .
  • the aim of the invention is also achieved by a method of installation of an umbilical, containing data communication and electrical energy transmission lines, at a steel lazy wave catenary riser, according to claim 10.
  • an arrangement of an umbilical of data communication lines and/or electrical energy transmission lines mounted on a steel lazy wave catenary riser comprises:
  • a buoyant section having buoyant devices attached to the riser and extending from the upward oriented end section of the sag bend further upward and forming a hog bend of opposite curvature with respect to the sag bend and defining a highest hog bend point and a downward oriented end section, so that the sag bend and the hog bend define a double curvature section and an inflection location between the sag bend and the hog bend,
  • the riser extension has, in addition to the vertical component, a continuously growing horizontal component in a horizontal riser direction starting from the upper hang off location towards the touch down location,
  • the first installation point is positioned in an installation region of the riser between the lowest sag bend point and the highest hog bend point
  • the first umbilical section is tensioned to have a flatter catenary shape than the catenary shape of the riser between the upper hang off location and the first installation point, so that between the upper hang off location and the first installation point the first umbilical section extends at a distance from the riser and is preferably not connected to the riser.
  • the second installation point is positioned in the installation region of the riser between the lowest sag bend point and the highest hog bend point
  • the second umbilical section has a catenary shape with an opposite curvature to the curvature of the buoyant section, so that between the second installation point and the touch down location the second umbilical section extends at a distance from the riser and is preferably not connected to the riser.
  • the first umbilical section extends at a distance above and in the horizontal riser direction with respect to the riser between the upper hang off location and the first installation point, whereas the second umbilical section extends at a distance below and opposite the horizontal riser direction with respect to the riser between the second installation point and the touch down location.
  • the first and second umbilical sections have different (longitudinal) pretension forces, particularly the first umbilical section has a higher pretension force than the second umbilical section.
  • the arrangement according to the invention makes the umbilical partially independent from the riser deformations and movements. Thanks to the division and end-fixation of at least two independent umbilical sections, the dynamic loads and movements on the umbilical are reduced and the individual umbilical sections can be configured differently and prestressed differently.
  • the mechanical connection and force transmission between the umbilical and the riser in the installation points can be made by means of dedicated riser clamping bodies, independently from the riser laying process, which simplifies the installation of the umbilical and reduces the overall cost of the riser-umbilical arrangement.
  • the first (upper) umbilical section can be conveniently and easily individually tensioned to sit above the riser and avoid any space violation.
  • the arrangement is very simple, easy to install, equally applicable to new riser installations and as a retrofit to already existing SLWR risers, at significantly reduced costs with respect to conventional riser-umbilical arrangements and installation methods.
  • Fig. 1 shows a steel lazy wave catenary riser (SLWR) extending from a Floating Production Storage Offloading (“FPSO”) facility to the seabed, and an initial phase of installation of a first section of a data/energy transmission umbilical (in the following “umbilical) from a deploy vessel,
  • SLWR steel lazy wave catenary riser
  • FPSO Floating Production Storage Offloading
  • FIGs. 2 to 5 show a step of extending and installing the first (upper) section of umbilical at a SLWR riser between the FPSO vessel or an upper hang off location of the riser and a first installation point at the SLWR riser,
  • Fig. 6 shows the steel lazy wave catenary riser (SLWR) extending from the Floating Production Storage Offloading (“FPSO”) facility to the seabed, with the already installed first (upper) section of umbilical, and an initial phase of installation of a second section of the umbilical from the deploy vessel,
  • SLWR steel lazy wave catenary riser
  • Figs. 7 to 9 show a step of extending and installing the second (lower) section of umbilical at the SLWR riser between the sea bed and a second installation point at the SLWR riser
  • Figs. 10 and 11 show a step of extending and connecting a third (intermediate) section, a so-called jumper section, of umbilical at the SLWR riser between the first umbilical section at the first installation point and the second umbilical section at the second installation point,
  • Fig. 12 shows a step of extending and installing a branch line, or so-called flying lead, of umbilical at the SLWR riser from the jumper section or second umbilical section at the second installation point to a monitored location at the hog bend,
  • Fig. 13 shows a step of extending and installing a further branch line, or so-called flying lead, of umbilical at the SLWR riser from the first umbilical section at the first installation point to a further monitored location at the sag bend,
  • Fig. 14 shows a portion of the steel lazy wave catenary riser (SLWR) and a final situation of installation of the data/energy transmission umbilical
  • Figures 15, 16 are perspective and cross-section views of an exemplary armored umbilical
  • Fig. 17 is a lateral view of a portion of umbilical with an external bending restrictor sheath
  • Figures 18 and 19 are prospective and partially broken away views of an exemplary Clevis type umbilical cable termination with support swivel and cable connector
  • Figures 20A, 20B, 20C, 20D are perspective views and front views of a ROV (remotely operated vehicle) - applicable riser clamping body with a jaw actuator, multiple umbilical connector sockets and a jaw actuation interface,
  • ROV remotely operated vehicle
  • Figures 21 A, 21 B are perspective views of a mud mat with umbilical connection sockets intended to pe placed on the sea bed
  • Figures 22, 23 are perspective views of exemplary umbilical optical/electrical connector plugs
  • Fig. 24 shows a steel lazy wave catenary riser geometry
  • FIG. 25 illustrates an alternative embodiment to the embodiment shown in figure 13, in which only one installation structure (clamping body) is provided and the third (intermediate) section, the so-called jumper section, of the umbilical can be obviated.
  • an arrangement 1 of an umbilical 19 of data communication lines and/or electrical energy transmission lines mounted on a steel lazy wave catenary riser 2 comprises A) the steel lazy wave catenary riser 2 having:
  • an upper catenary section 3 extending from an upper hang off location 4 (intended to be fixed at an FPSO 5 or generic vessel 5) downwards and transitioning in a sag bend 6 having a lowest sag bend point 7 and an upward oriented end section 8,
  • a buoyant section 9 having buoyant devices 10 attached to the riser 2 and extending from the upward oriented end section 8 of the sag bend 6 further upward and forming a hog bend 11 of opposite curvature with respect to the sag bend 6 and defining a highest hog bend point 12 and a downward oriented end section 13, so that the sag bend 6 and the hog bend 11 define a double curvature section and an inflection location 14 between the sag bend 6 and the hog bend 11 ,
  • the course (shape) of the riser has, in addition to the vertical component, a continuously growing horizontal component in a horizontal riser direction 18 starting from the upper hang off location 4 towards the touch down location 16.
  • the arrangement 1 further comprises B) the umbilical 19 having:
  • the first installation point 21 is positioned in an installation region 24 of the riser 2 between the lowest sag bend point 7 and the highest hog bend point 12, and the first umbilical section 20 is tensioned to have a flatter catenary shape than the catenary shape of the riser 2 between the upper hang off location 4 and the first installation point 21 , so that between the upper hang off location 4 and the first installation point 21 the first umbilical section 20 extends at a distance from the riser 2 and is preferably not connected to the riser 2.
  • the second installation point 23 is positioned in the installation region 24 of the riser 2 between the lowest sag bend point 7 and the highest hog bend point 12, and the second umbilical section 22 has a catenary shape with an opposite curvature to the curvature of the buoyant section 9, so that between the second installation point 23 and the touch down location 16 or sea bed 17 the second umbilical section 22 extends at a distance from the riser 2 and is preferably not connected to the riser 2.
  • the first umbilical section 20 is mechanically connected to the riser 2 at the first installation point 21 and, possibly, also at the upper hang off location 4 (either directly or both are mechanically connected to the FPSO 5 or vessel 5).
  • the second umbilical section 22 is mechanically connected to the riser 2 at the second installation point 23 and, possibly also at the touch down location 16 (either directly or both are mechanically connected to a mud mat 44 or similar sea bed installation structure.
  • the first umbilical section 20 is not mechanically connected to the riser 2 at the upper hang off location 4, but only at the first installation point 21 .
  • an upper end of the first umbilical section 20 can be mechanically anchored at the FPSO 5 or vessel 5 which in this case shall be interpreted as a whole as the upper hang off location 4.
  • the second umbilical section 22 may be not mechanically connected to the riser 2 at the touch down location 16, but only at the second installation point 23.
  • a lower end of the second umbilical section 22 can be mechanically anchored at an anchoring structure at the seabed which in this case shall be interpreted as a whole as the touch down location 16.
  • the first umbilical section 20 extends at a distance above and in the horizontal riser direction 18 with respect to the riser 2 between the upper hang off location 4 and the first installation point 21
  • the second umbilical section 22 extends at a distance below and opposite the horizontal riser direction 18 with respect to the riser 2 between the second installation point 23 and the touch down location 16.
  • the first and second umbilical sections have different (longitudinal) pretension forces, particularly the first umbilical section 20 has a higher pretension force than the second umbilical section 22.
  • the arrangement according to the invention makes the umbilical 19 partially independent from the riser 2 deformations and movements. Thanks to the division and end- only-fixation of at least two structurally independent umbilical sections 20, 22, the dynamic loads and movements on the umbilical 19 are reduced and the individual umbilical sections 20, 22 can be configured differently and prestressed differently.
  • the mechanical connection and force transmission between the umbilical 19 and the riser 2 in the installation points 21 , 23 can be made by means of dedicated riser installation structures 34, 35, 36, such as clamping bodies, independently from the riser laying process, which simplifies the installation of the umbilical 19 and reduces the overall cost of the riser-umbilical arrangement 1.
  • the first (upper) umbilical section 20 can be conveniently and easily individually tensioned to sit above the riser 2 and avoid any space violation.
  • the arrangement 1 is very simple, easy to install, equally applicable to new riser installations and as a retrofit to already existing SLWR risers, at significantly reduced costs with respect to conventional riser-umbilical arrangements and installation methods.
  • the installation region 24 is confined within a distance from the inflection location 14 smaller than 2%, preferably smaller than 1% of the riser 2 length. [0075] Ideally, the installation region 24 is at the inflection location 14. That means for practical applications, that the first installation point 21 and the second installation point 23 are preferably within an exemplary distance of max. 25 meters, preferably 15 meters, from the inflection location 14.
  • the third umbilical section 26 may have e.g. an exemplary length of less than 50 meters or of about 20m.
  • the umbilical 19 comprises a third (intermediate) umbilical section 26, a so-called jumper section, extended between the first installation point 21 and the second installation point 23 and making an electrical and/or data communication connection between the first umbilical section 20 and the second umbilical section 22.
  • the third umbilical section 26 has a length greater than a straight distance between the first installation point 21 and the second installation point 23, in order prevent undesired tensioning of the third umbilical section 26 and to facilitate the manipulation of the ends of the third umbilical section 26 for the purpose of a, e.g. plug-in, data/electrical connection with the first umbilical section 20 at the first installation point 21 and with the second umbilical section 22 at the second installation point 23.
  • the arrangement 1 comprises at least one or more branch lines 27, 28, 30, 32 comprising one or more of data transmission cables 47 and electricity cables 46, branched off from the umbilical 19 and extending to monitoring locations 29, 30 at the riser 2, e.g:
  • a sag bend branch line 27 branched off the umbilical 19, e.g. at the first installation point 21 , and extending to a sag bend monitoring location 29 at the sag bend 6 of the riser 2, and/or
  • a hog bend branch line 28 branched off the umbilical 19, e.g. at the second installation point 23, and extending to a hog bend monitoring location 30 at the hog bend 11 of the riser 2, and/or
  • an upper branch line 31 branched off the umbilical 19, e.g. at the upper hang off location 4, and extending to an upper monitoring location 32 along a portion of the upper catenary section 3 of the riser 2, and/or
  • a lower branch line 25 branched off the umbilical 19, e.g. at the touch down location 16 or sea bed 17, and extending to a lower monitoring location 33 along a portion of the lower catenary section 15 of the riser 2.
  • the arrangement 1 comprises no branch lines at all along the length of the riser 2.
  • the first installation point 21 and/or the second installation point 23 can be formed by one or more installation structures 34, 35, 36 having each a (reversable) mechanical riser coupler 37 for a (reversable) mechanical connection of the installation structure with the riser 2, and one or more (preferably detachable) mechanical pull resistant umbilical couplers 38 for a (preferably detachable) mechanical connection of the installation structure with the umbilical 19, i.e. the first umbilical section 20 and/or second umbilical section 22 and/or possibly third umbilical section 26.
  • cable end connectors 39 of the umbilical sections 20, 22, 26, and possible branch lines 27, 28, 30, 32 are (preferably detachably) connectable directly with each other or with corresponding connecting sockets 40 of an electrical and data distribution device 41 onboard the installation structures 34, 35, 36.
  • the electrical and data distribution device 41 comprises multiple communicating connecting sockets 40 to allow for multiple connections between the umbilical sections 20, 22, 26, and/or branch lines 27, 28, 30, 32.
  • the first installation point 21 is formed by a first installation structure 34 having:
  • a first electrical and data distribution device 41 to which cable end connectors 39 of the first umbilical section 20, of the third umbilical section 23, and (only if provided) of at least a sag bend branch line 27 are or may be connected.
  • the second installation point 23 is formed by a second installation structure 35 having:
  • the first installation point 21 and the second installation point 22 are formed both by one single installation structure 36 having:
  • each of the installation structures 34, 35, 36 is configured as a self-supporting clamping body having further: [00101] - a crane rigging attachment interface 42 to allow the installation structure 34, 35, 36 to be lifted, lowered and positioned by a crane,
  • a coupling actuation interface 43 adapted to be engaged and operated by a remotely operated subsea vehicle (ROV) for engaging and releasing the mechanical riser coupler 37.
  • ROV remotely operated subsea vehicle
  • the mechanical riser coupler 37 comprises advantageously hydraulically or mechanically actuatable opposing jaws.
  • the umbilical 19, especially the lower end of the second umbilical section 22, is mechanically connected with a mud mat 44 placed on the sea bed 17. Similar to the installation structure 41 , the mud mat 44 may also have a mechanical umbilical coupler 38 and an electrical and data distribution device 41 with multiple connecting sockets 40 for the electrical and data transmission connection of the (second umbilical section 22 of) umbilical 19 and of possible branch lines, e.g. the lower branch line 25.
  • the arrangement 1 comprises riser monitoring instrumentation 45 comprising e.g. pressure sensor/s, temperature sensor/s, accelerometer/s, strain gauge/s, optical sensor/s, telecamera/s, etc., connected to the umbilical 19 and/or branch line/s 27, 28, 31 , 32.
  • riser monitoring instrumentation 45 comprising e.g. pressure sensor/s, temperature sensor/s, accelerometer/s, strain gauge/s, optical sensor/s, telecamera/s, etc.
  • the umbilical 19 comprises one or more electrical conductors 46, e.g. copper cables, and/or one or more data transmission lines 47, e.g. electrical signal cables or optical signal cables, protected and wrapped by an external armature sheath 48.
  • electrical conductors 46 e.g. copper cables
  • data transmission lines 47 e.g. electrical signal cables or optical signal cables
  • the first umbilical section 20 and second umbilical section 22 may comprise a reinforced (e.g. steel) mechanical coupling end portion 49, e.g. a tubular clevis body, having:
  • the arrangement 1 is used for riser 2 integrity monitoring.
  • the umbilical 19 may be provided for the purpose of energizing, operating, and communicating with, functional modules of the subsea facility.
  • the provision and connection of branch off lines at the riser 2 is not mandatory. Accordingly, the described embodiments of the arrangement 1 and of the installation structures 34, 35, 36 are to be alternatively understood as having been also described separate and independently from the branch off lines.
  • a method for installing an umbilical 19 of data communication lines and/or electrical energy transmission lines on a steel lazy wave catenary riser 2 for obtaining the arrangement 1 comprises the step of A) installing the first umbilical section 20 (figures 1 to 6) by:
  • the deploy vessel 53 holds an upper end of the first umbilical section 20, mechanically coupling the lower end of the first umbilical section 20 with the riser 2 in the first installation point 21 , preferably by using a remotely operated subsea vehicle 54,
  • the method comprises the step of B) installing the second umbilical section 22 (figures 6 to 9) by:
  • the deploy vessel 53 holds an upper end of the second umbilical 22, mechanically coupling the lower end of the first umbilical section 20 in the touch down location 16, preferably by using a remotely operated subsea vehicle 54,
  • the method comprises the step of C) making an electrical and/or data transmission connection between the first umbilical section 20 and the second umbilical section 22 in the installation region 24, e.g. by installing the third umbilical section 26 (figures 10 to 12) by:
  • the method comprises the step of D) connecting to the umbilical 19 one or more branch lines 27, 28, 30, 32 comprising one or more of data transmission cables 47 and electricity cables 46, preferably using a remotely operated subsea vehicle 54, and extending the branch lines 27, 28, 30, 32 to monitoring locations 29, 30 at the riser 2 (figures 12 to 14).
  • the step A) comprises the step of coupling the lower end of the first umbilical section 20 to the first installation structure 34 or to the single installation structure 36 prior to lowering the first umbilical section 20 from the deploy vessel 53 and coupling the lower end of the first umbilical section 20 to the riser 2 by clamping the first installation structure 34 on the riser 2.
  • the step B) comprises the step of coupling the upper end of the second umbilical section 22 to the second installation structure 35 prior to lowering the upper end of the second umbilical section 22 from the deploy vessel 53 and coupling the upper end of the second umbilical section 22 to the riser 2 by clamping the second installation structure 34 on the riser 2.
  • step A) comprises:
  • step B) comprises:
  • the arrangement 1 is advantageously used to:
  • [00162] - provide power and communication umbilical/s to the seabed, and/or
  • [00163] - provide power and communication transmission for a riser monitoring system, and/or
  • [00165] provide power and communication transmission for resident AUVs (autonomous underwater vehicle) and a subsea IOT (Internet of things) infrastructure and data processing and transmission equipment.
  • AUVs autonomous underwater vehicle
  • IOT Internet of things
  • the lazy wave catenary riser has been described as a steel riser for the purpose of example only.
  • the riser 2 can be made of a different material or material combination.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

L'invention concerne un agencement (1 ) d'un câble ombilical (19) de lignes de communication de données et/ou de lignes de transmission d'énergie électrique montées sur une colonne montante caténaire de type en chaînette ou "lazy-wave" (2), le câble ombilical (19) présentant une première section (20) s'étendant d'un emplacement de suspension supérieur (4) de la colonne montante (2) en continu vers le bas à un premier point d'installation (21 ) au niveau de la colonne montante (2) et une seconde section (22) s'étendant d'un second point d'installation (23) au niveau de la colonne montante (2) en continu vers le bas au fond marin (17) au niveau d'un emplacement de contact bas (16) de la colonne montante (2), le premier point d'installation (21 ) étant positionné dans une région d'installation (24) de la colonne montante (2) entre un point de courbure d'affaissement le plus bas (7) et un point de courbure d'arc le plus élevé (12) de l'extension de la colonne montante caténaire de type en chaînette ou "lazy-wave" (2), et la première section (20) du câble ombilical est tendue jusqu'à obtention d'une forme caténaire plus plate qu'une forme caténaire de la colonne montante (2) entre l'emplacement de suspension supérieur (4) et le premier point d'installation (21 ) de sorte que, entre l'emplacement de suspension supérieur (4) et le premier point d'installation (21 ), la première section (20) du câble ombilical s'étend à une certaine distance et est détachée de la colonne montante (2).
EP22715327.7A 2021-06-21 2022-04-07 Agencement et procédé pour l'installation de lignes de transmission de données et d'énergie électrique sur une colonne montante en acier de type en chaînette ou "lazy-wave" (slwr) Pending EP4359633A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000016124A IT202100016124A1 (it) 2021-06-21 2021-06-21 Installazione e metodo di installazione di linee di trasmissione dati e elettriche su un lazy wave riser (slwr) in acciaio
PCT/IB2022/053269 WO2022269372A1 (fr) 2021-06-21 2022-04-07 Agencement et procédé pour l'installation de lignes de transmission de données et d'énergie électrique sur une colonne montante en acier de type en chaînette ou "lazy-wave" (slwr)

Publications (1)

Publication Number Publication Date
EP4359633A1 true EP4359633A1 (fr) 2024-05-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22715327.7A Pending EP4359633A1 (fr) 2021-06-21 2022-04-07 Agencement et procédé pour l'installation de lignes de transmission de données et d'énergie électrique sur une colonne montante en acier de type en chaînette ou "lazy-wave" (slwr)

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Country Link
EP (1) EP4359633A1 (fr)
BR (1) BR112023024308A2 (fr)
IT (1) IT202100016124A1 (fr)
WO (1) WO2022269372A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2450149A (en) * 2007-06-15 2008-12-17 Vetco Gray Controls Ltd A backup umbilical connection for a well installation
US9976363B2 (en) * 2013-11-20 2018-05-22 Statoil Petroleum As Offshore flexible line installation and removal
EP2886787A1 (fr) * 2013-12-20 2015-06-24 Shell International Research Maatschappij B.V. Colonne montante de production d'acier ondulé, système de production d'hydrocarbures en mer et procédé de production d'un flux d'hydrocarbure
GB2525609B (en) * 2014-04-28 2017-04-19 Acergy France SAS Riser system with gas-lift facility

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Publication number Publication date
WO2022269372A1 (fr) 2022-12-29
IT202100016124A1 (it) 2022-12-21
BR112023024308A2 (pt) 2024-02-06

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