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WO2013007971A2 - Interface sous-marine - Google Patents

Interface sous-marine Download PDF

Info

Publication number
WO2013007971A2
WO2013007971A2 PCT/GB2012/000584 GB2012000584W WO2013007971A2 WO 2013007971 A2 WO2013007971 A2 WO 2013007971A2 GB 2012000584 W GB2012000584 W GB 2012000584W WO 2013007971 A2 WO2013007971 A2 WO 2013007971A2
Authority
WO
WIPO (PCT)
Prior art keywords
receptacle
guide post
contact
aperture
subsea
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.)
Ceased
Application number
PCT/GB2012/000584
Other languages
English (en)
Other versions
WO2013007971A3 (fr
Inventor
Mahendran ARUMUGAM
Paul Ian THOMAS
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.)
Aker Solutions Ltd
Original Assignee
Aker Subsea 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
Application filed by Aker Subsea Ltd filed Critical Aker Subsea Ltd
Priority to NO20140090A priority Critical patent/NO346903B1/no
Publication of WO2013007971A2 publication Critical patent/WO2013007971A2/fr
Publication of WO2013007971A3 publication Critical patent/WO2013007971A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
    • E21B41/0014—Underwater well locating or reentry systems
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/10—Guide posts, e.g. releasable; Attaching guide lines to underwater guide bases

Definitions

  • the invention relates to a subsea interface which can provide positional location of structures and electrical conductivity between them.
  • the interface needs to provide both accurate relative physical location of the structures and electrical continuity between them.
  • earthing straps could be employed if the structures were permanently joined it would be desirable to provide an interface which can be made up without the requirement for earth straps and preferably requires minimal operation by a ROV (remotely operated vehicle). This is particularly though not exclusively important when one or other of the structures is intended to be retrievable for maintenance, repair or replacement.
  • the invention therefore concerns the elements of an interface which can provide both physical location and electrical continuity in a simple and reliable manner.
  • the invention concerns a subsea connection for a retrievable structure, comprising a guide post and a receptacle for receiving the guide post, wherein the connection is adapted to establish electrical connection between the guide post and the receptacle as the guide post is inserted into the receptacle.
  • the . receptacle comprises an elongate tubular member into which the guide post can be inserted, and at least one of the post and the receptacle has at least one lateral aperture and carries an electrical contact which extends though the said aperture to make resilient contact with the other one of the post and receptacle.
  • the said aperture is provided in the receptacle and extends from the outside of the receptacle to protrude through the aperture for sliding engagement with the outside of guide post.
  • the contact is disposed to engage the guide post resiliently.
  • the contact may include a shoe positioned in the aperture for sliding engagement with the guide post.
  • the contact may comprise a metallic strip which has a part secured to the outside of the receptacle, an outwardly extending part, an inwardly extending part and a contact shoe located within said aperture.
  • the guide post comprises a tubular member having the said lateral aperture and the electrical contact extends from the inside of the guide post to protrude from the aperture for sliding engagement with the receptacle.
  • the contact is disposed to engage the receptacle resiliently.
  • the contact may include a shoe positioned in the aperture for sliding engagement with the guide post.
  • the contact may comprise a metallic strip which has a part secured to the inside of the guide post, an inwardly extending part, an outwardly extending part and a contact shoe located within said aperture.
  • the receptacle comprises an elongate tubular member into which the guide post can be inserted, and at least one contact spring extends from the inside of the receptacle to contact a leading part of the guide post as the guide post is inserted into the receptacle.
  • contact springs may be a multiplicity of such contact springs in the form of a segmented f rusto-cone.
  • At least one ball-bearing is disposed between the receptacle and the periphery of the guide post.
  • the receptacle may carry a multiplicity of ball-bearings for engagement with the periphery of the guide post.
  • the invention extends to both a receptacle and a guide post for use in a subsea connection as defined herein.
  • the invention also extends to a subsea structure including at least one receptacle, to a subsea structure including at least one guide and to a subsea assembly comprising a first structure including a receptacle and a second structure including a guide post for insertion into said receptacle.
  • Figure 1 illustrates part of a subsea installation
  • Figure 2 is a side view of a receptacle and guide post
  • Figure 3 is another side view of a receptacle and guide post
  • Figure 4 is a fragmentary section view of a receptacle and guide post
  • Figure 5 is a fragmentary perspective view of a receptacle and guide post.
  • Figure 6 is a sectional view of another embodiment of the invention
  • Figure 7 is a schematic illustration of another embodiment of the invention
  • Figure 8 is a schematic illustration of another embodiment of the invention
  • Figure 9 is an illustration of part of the embodiment shown in Figure 8.
  • Figure 1 is shown part of a subsea installation which includes a first structure 1 on which a second structure 2, such as for example a module or tree, is to be located.
  • the structure 1 includes an array of receptacles 3, preferably (as shown) in elongate tubular form.
  • the receptacle 3 are disposed upright and each has a capture or docking cone 4 at its top.
  • Figure 1 shows an assembly in which there are only two receptacles 3 in the structure 1. Three or more receptacles could be provided; the number and positioning of the receptacles depends on the actual structure employed.
  • the receptacles 3 are preferably disposed with their axes parallel. Preferably but not necessarily the receptacles 3 are all similar.
  • the structure 2 which in this example is intended to be retrievable, is shown schematically only in chain lines. It includes a plurality of guide posts each of which can slide into a respective one of the receptacles 3. Only one guide post is fully shown in Figure 1. One other guide post, for insertion into a respective receptacle, is indicated by the arrow 5a.
  • Each guide post comprises a top plate 6, forming part of the structure 2, an upper part 7 and a lower part 8 which is a close fit within the tubular receptacle 3. Since the receptacle will usually contain sea water, the lower part 8 has a central axial bore 9 which acts as a relief channel for water in the receptacle 3 as the post 5 is inserted.
  • the upper part 7 carries a radially extending plate 10 which comes to rest on the respective capture cone 4 to limit the movement of the guide post and to define an axial location for the guide post relative to the receptacle 3.
  • the receptacle includes a rotatable locking bar 11 which can be rotated by an ROV into an angular position engaging a groove (not shown) in the guide post.
  • the bar 11 may have a central part with a semicircular section for this purpose.
  • Figures 2 to 5 illustrate one embodiment in which electrical continuity between the receptacle and the guide post is established automatically as the guide post is inserted into the receptacle so that no further operation by an ROV is required to establish that continuity.
  • a receptacle 3 has at least one and preferable more than one lateral aperture 20 which allows access to an inserted guide post 8 from the exterior of the receptacle 3.
  • there are two such lateral apertures 20 which are circumferentially spaced around the receptacle 3, and in this example diametrically opposite each other. However, they need not be located thus and need not be at the same axial location. Into each aperture 20 protrudes an electrical contact or 'brush'.
  • the contact is constituted by a metallic strip 21 which is secured to the outside surface 22 of the receptacle 3 and includes a contact shoe 23 which fits within and protrudes inwardly of the respective aperture 20 to make a resilient sliding engagement with the surface of the respective guide post.
  • the strip 21 is preferably shaped to constitute a spring and in this example comprises a base part 24, a first intermediate part 25 which extends outwardly (away from the aperture) and makes an obtusely angled bend with the base part 24, a second intermediate part 26 which makes an acutely angled bend with the part 25 and extends inwardly (towards the aperture) to the shoe 23, which lies substantially in a direction parallel to the axis of the post. At the end of the shoe is an outwardly extending lip 27.
  • the bend between the part 26 and the shoe 23 and the bend between the shoe 23 and the lip 27 should be radiused so as to avoid interference to sliding movement of the guide post.
  • the guide post may have a flat facet for engagement by the shoe 23.
  • the base part 24 of the strip 21 is preferably welded to the outside surface 22 of the receptacle 3, but other forms of fixing could be employed provided that electrical continuity is preserved.
  • the guide post in this example has a circular cross-section, as does the receptacle 3 into which it fits.
  • other cross-sections such as polygonal may be employed.
  • the strip 21 is preferably made from an initially flat strip.
  • a stainless steel such as 316L stainless steel is used as the material of the steel but other corrosion-resistant materials could be employed.
  • Figure 6 illustrates an embodiment which is converse to that shown in Figures 2 - 5 but likewise establishes electrical continuity between the guide post 8 and the receptacle 3 automatically as the guide post is inserted.
  • metal strips 61 each extend from an interior surface 62 of the guide post 8, which is at least partly hollow, and each include a shoe 63 which makes sliding contact with the inside surface of the receptacle 3. The shoe protrudes from a respective aperture 60 in the side wall of the guide post.
  • the strip 61 is preferably shaped to constitute a spring and in this example comprises a base part 64, a first intermediate part 65 which extends inwardly (away from the aperture) and makes an obtusely angled bend with the base part 64, a second intermediate part 66 which makes an acutely angled bend with the part 65 and extends outwardly (towards the aperture) to the shoe 23, which lies substantially in a direction parallel to the axis of the post. At the end of the shoe is an inwardly extending lip 67.
  • the bend between the part 66 and the shoe 63 and the bend between the shoe 63 and the lip 67 should be radiused so as to avoid interference to sliding movement of the guide post.
  • the receptacle may have a flat facet for engagement by the shoe 63.
  • the base part 64 of the strip 61 is preferably welded to the inside surface 62 of the receptacle 3, but other forms of fixing could be employed provided that electrical continuity is preserved.
  • the guide post in this example has a circular cross-section, as does the receptacle 3 into which it fits.
  • other cross-sections such as polygonal may be employed.
  • the strip 61 is preferably made from an initially flat strip.
  • a stainless steel such as 316L stainless steel is used as the material of the steel but other corrosion-resistant materials could be employed.
  • the continuity between the guide post and the receptacle is achieved by rolling contact rather than by sliding contact.
  • One or more ball-bearings may be disposed between the outer surface of the guide post and the inner surface of the receptacle.
  • Figure 7 shows a particular example. Supported in an annular race extending around the inner periphery 70 of the receptacle 3 is a multiplicity of ball-bearings 71 which engage the outside surface 72 of the guide post. In this example there is below the ball-bearings 71 a second set of ball-bearings 71a disposed in a similar manner.
  • FIGS 8 and 9 illustrate a yet further embodiment of the invention.
  • at least one metal strip 81 is fixed, preferably by welding, to the inside 70 of the receptacle 3 and extends inwardly, in this example obliquely, to engage the tapered leading end 82 of the guide post.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Insulated Conductors (AREA)
  • Glass Compositions (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

L'invention concerne une connexion sous-marine destinée à une structure récupérable, comprenant un pilier de guidage (8) et un élément de réception (3) servant à recevoir ledit pilier de guidage. Cette connexion est conçue pour établir automatiquement une connexion électrique entre le pilier de guidage et l'élément de réception, lors de l'insertion du pilier de guidage dans l'élément de réception. Dans un exemple selon l'invention, l'élément de réception comprend un élément tubulaire allongé dans lequel le pilier de guidage peut être inséré, au moins une ouverture latérale (20) et un contact électrique (24 - 27) qui s'étend depuis l'extérieur dudit élément pour faire saillie dans l'ouverture afin de venir en prise avec le pilier de guidage.
PCT/GB2012/000584 2011-07-13 2012-07-10 Interface sous-marine Ceased WO2013007971A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20140090A NO346903B1 (no) 2011-07-13 2012-07-10 Undervanns grensesnitt

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1111970.8 2011-07-13
GB1111970.8A GB2492800B (en) 2011-07-13 2011-07-13 Subsea interface

Publications (2)

Publication Number Publication Date
WO2013007971A2 true WO2013007971A2 (fr) 2013-01-17
WO2013007971A3 WO2013007971A3 (fr) 2013-10-03

Family

ID=44586471

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2012/000584 Ceased WO2013007971A2 (fr) 2011-07-13 2012-07-10 Interface sous-marine

Country Status (5)

Country Link
BR (1) BRPI1104127B1 (fr)
GB (1) GB2492800B (fr)
MY (1) MY168386A (fr)
NO (1) NO346903B1 (fr)
WO (1) WO2013007971A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153567A1 (fr) 2016-03-10 2017-09-14 Thrombogenics Nv Inhibition postérieure de la fibrose oculaire par antagonisation du facteur de croissance placentaire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2514191B (en) * 2013-05-17 2016-05-25 Aker Subsea Ltd Self-aligning subsea structures

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199595A (en) * 1961-12-28 1965-08-10 Shell Oil Co Secondary control system for underwater wells
US3339632A (en) * 1964-01-21 1967-09-05 Hydril Co Underwater connector
FR2350496A1 (fr) * 1976-05-03 1977-12-02 Matra Engins Connecteur automatique et application dudit connecteur aux modules de raccordement sous-marins
FR2409610A1 (fr) * 1977-11-21 1979-06-15 Petroles Cie Francaise Connecteur electrique pour raccordement sous-marin
US4347012A (en) * 1978-10-07 1982-08-31 Fmc Corporation Method and apparatus for tension setting and compression releasing tubular connectors
US4439068A (en) * 1982-09-23 1984-03-27 Armco Inc. Releasable guide post mount and method for recovering guide posts by remote operations
US4806114A (en) * 1985-09-14 1989-02-21 The British Petroleum Company P.L.C. Underwater electrically conductive coupling
US4828035A (en) * 1988-09-21 1989-05-09 Exxon Production Research Company Subsea guidepost latch mechanism and method for using
GB8904295D0 (en) * 1989-02-24 1989-04-12 Framo Dev Ltd Undersea package and installation system
BR9104817A (pt) * 1991-11-05 1993-05-11 Petroleo Brasileiro Sa Mecanismo de intercambiamento de poste-guia operador por veiculo de operasao remota
US5246075A (en) * 1992-01-06 1993-09-21 National-Oilwell Guide post latching mechanism

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153567A1 (fr) 2016-03-10 2017-09-14 Thrombogenics Nv Inhibition postérieure de la fibrose oculaire par antagonisation du facteur de croissance placentaire

Also Published As

Publication number Publication date
NO346903B1 (no) 2023-02-20
MY168386A (en) 2018-10-31
BRPI1104127B1 (pt) 2020-11-03
NO20140090A1 (no) 2014-01-27
GB201111970D0 (en) 2011-08-31
GB2492800B (en) 2016-12-28
WO2013007971A3 (fr) 2013-10-03
GB2492800A (en) 2013-01-16
BRPI1104127A2 (pt) 2014-06-03

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