EP0107842B1 - Dispositif pour permettre d'effectuer de façon répétitive des opérations de mise en place ou de retrait d'un module autonome submersible comportant un tronçon de conduite raccordable à une collecte - Google Patents

Dispositif pour permettre d'effectuer de façon répétitive des opérations de mise en place ou de retrait d'un module autonome submersible comportant un tronçon de conduite raccordable à une collecte Download PDF

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Publication number
EP0107842B1
EP0107842B1 EP83110468A EP83110468A EP0107842B1 EP 0107842 B1 EP0107842 B1 EP 0107842B1 EP 83110468 A EP83110468 A EP 83110468A EP 83110468 A EP83110468 A EP 83110468A EP 0107842 B1 EP0107842 B1 EP 0107842B1
Authority
EP
European Patent Office
Prior art keywords
sheath
module
collection
collector
section
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.)
Expired
Application number
EP83110468A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0107842A1 (fr
Inventor
Roland Labbe
Jean-Luc Quistrebert
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.)
Alstom SA
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP0107842A1 publication Critical patent/EP0107842A1/fr
Application granted granted Critical
Publication of EP0107842B1 publication Critical patent/EP0107842B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
    • E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
    • 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
    • E21B43/013—Connecting a production flow line to an underwater well head

Definitions

  • Document FR-A-2,500,525 describes an underwater petroleum production installation which comprises well heads each associated with an auxiliary module comprising movable members such as valves.
  • This auxiliary module is connected on one side to the well head and on the other to a collection leading to a central structure bringing together all the collections and comprising specialized accessory modules.
  • the auxiliary module can be raised to allow maintenance and repair operations to be carried out on the surface. It is therefore necessary that there is a certain clearance between, on the one hand, this module and the wellhead and, on the other hand, this module and said collection once this module is disconnected from these two elements.
  • the internal channel, formed by the collection must be able to continue up to the head of the well without any drop, groove, bump or narrowing of the conduit at the location of the connectors because it must be able to send tools there, which implies end-to-end connections until contact with the ends of the parts to be connected. Taking into account this and the play necessary to allow the arrival and the removal of the auxiliary module, this means that during the connection, we are led to fetch the end of the collection located outside the auxiliary module to pull it inward so that you can make the connection on the other side between the auxiliary module and the wellhead.
  • the auxiliary module comprises a cradle which can be moved laterally, this cradle comprising the pipe section to be connected on the one hand to the collection and on the other hand to the wellhead.
  • a difficulty stems from the fact that said collection, and particularly around its end, can be more or less depressed over time and this can make disconnection impossible because, since the collection is buried, one can no longer count on its flexibility to repel its end outside by lateral displacement of said cradle and thus ensuring the minimum clearance necessary for raising the module.
  • the object of the present invention is to overcome this drawback and has as its object a device for repetitively carrying out operations for installing or removing a submersible autonomous module comprising a section of pipe connectable to a collection disposed on the bottom, the connection of said section with the collection being made by approaching until the end-to-end contact of the ends to be connected, said section being carried by a cradle comprising displacement means allowing the end of said section to exit the module and to go at least until contact with the end of the collection to make the connection and to go back by pulling on the collection, characterized in that the end of said collection is placed inside a fixed and rigid sheath, of an internal section greater than the external section of the collection, said sheath comprising at least one curved portion and said collection being fixed to said sheath only vicinity of the end of the sheath furthest from said module, allowing movement of the collection in the sheath.
  • the end of the sheath located on the side of said module is positioned in a sheath comprising means for blocking the sheath, said sheath comprising means for locking the collection in a retracted position , means for unlocking said collection being provided.
  • the assembly includes a wellhead 1, an auxiliary module 2 generally comprising valves and other movable members which may be subject to overhaul or repair, which implies that this module must be able to be put in place and removed repeatedly, and a collection 3 may also consist of several joined pipes.
  • the wellhead 1 and the auxiliary module 2 are positioned and fixed on a base 4. To allow the auxiliary module 2 to be placed and removed, it is necessary to provide in the disconnected position, as is the case in the figure 1, a minimum clearance on the one hand between this module and the well head 1 and on the other hand between this module 2 and the end of a male connector 5 situated at the end of the collection 3.
  • the end of the collection 3 passes through a sheath 6 which serves as a clearance at the end of the collection, thus allowing as we see in Figure 2, once the connection is made, pull the collection with a carriage 7 located in the module 2 and come to make the connection between the wellhead 1 and the auxiliary module 2.
  • the sheath 6 is rigid and has a wavy shape as seen in FIGS. 1 and 2 and its internal section is clearly greater than the external section of the collection 3.
  • the collection 3 is fixed at 8 to the sheath 6 at its end furthest from the module 1.
  • the opposite end of the sheath 6 is positioned and fixed in a sheath 9 fixed itself on the base 4.
  • a fixing means such as a latch 10 fixes the sheath 6 in its sheath 9.
  • the sheath 6 rests on the seabed 11 and the collection 3 courses on the bottom to join another body located for example on a central structure grouping bodies common to the heads of satellite wells.
  • the sheath 6 comprises means, shown diagrammatically at 12 in FIGS. 1 and 2 and detailed in FIGS. 3 to 6, for locking the collection 3 in the retracted position, that is to say in the position shown in FIG. 1 Means allow this collection to be unlocked when the female connector 13, associated with the pipe section 14 secured to the carriage 7, approaches the male connector 5 to make the connection.
  • the inherent elasticity of the collection 3 means that it tends to move into the extended position, that is to say as shown in FIG. 2, and that the carriage must exert an effort to return it to the position retracted and locked as shown in Figure 1. It is thus seen that thanks to the invention, it is certain to be able to push the collection in its sheath into its locked position ( Figure 1) and thus obtain the minimum clearance and allowing to extract the module 2, while in the absence of the sheath 6 one can never be certain of being able to push the collection back into the sheath 9 because it may very well over time have been covered thereby blocking any movement.
  • FIG 3 there is shown on the right side the end of the collection 3, in this case consisting of two pipes, to which is fixed a connection member 5 called male connector.
  • a connection member 5 called male connector.
  • the end of the sheath 6 comprising at the end the assembly 12 for locking the collection 3 in its sheath 6.
  • the sheath 9 has not been shown in which any the end of the sheath.
  • the female connector 13 is shown on the left side of the figure.
  • This essentially comprises a body 15 fixed to the pipe section 14 (not shown in this figure) identical to the collection 3 and a sliding ring 16 comprising oblique slots 17 serving as guide ramps allowing the movement of a series of fingers blocking 18 through holes 19 made in the body 15 allowing the fingers 18 to move radially.
  • the locking assembly 12 of the collection 3 in the sheath 6 comprises a body 20 fixed to the end of the sheath 6.
  • This body 20 has a series of holes 21 whose axes are radial relative to the axis of the connector male 5.
  • a blocking pin 22 whose cone-shaped end cooperates, in position for blocking the collection 3 in the sheath 6 with complementary conical holes 23 made in the periphery of the connector male 5.
  • a sliding ring 24 pushed by a spring 25 covers the fingers 22.
  • the sliding ring 24 comprises a groove 26 allowing, when the ring 24 is pushed to the right, the groove being in front of the pins 22 to unlock the system, the pins coming out naturally from the oblique holes 23 by the simple effect of the pushing of the collection or the tensile force exerted by the cart 7 u once the connection is made.
  • the sliding of the ring is carried out hydraulically by conventional means not shown and controlled at the surface by means of an umbilical cord running along the cable for laying the module 2 and the end of which comprises a tool for handling the module as described in the document FR-A-2 500 525 cited above.
  • an umbilical cord running along the cable for laying the module 2 and the end of which comprises a tool for handling the module as described in the document FR-A-2 500 525 cited above.

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)
  • Earth Drilling (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Massaging Devices (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Farming Of Fish And Shellfish (AREA)
EP83110468A 1982-10-26 1983-10-20 Dispositif pour permettre d'effectuer de façon répétitive des opérations de mise en place ou de retrait d'un module autonome submersible comportant un tronçon de conduite raccordable à une collecte Expired EP0107842B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8217871A FR2534964B1 (enrdf_load_stackoverflow) 1982-10-26 1982-10-26
FR8217871 1982-10-26

Publications (2)

Publication Number Publication Date
EP0107842A1 EP0107842A1 (fr) 1984-05-09
EP0107842B1 true EP0107842B1 (fr) 1986-07-30

Family

ID=9278588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110468A Expired EP0107842B1 (fr) 1982-10-26 1983-10-20 Dispositif pour permettre d'effectuer de façon répétitive des opérations de mise en place ou de retrait d'un module autonome submersible comportant un tronçon de conduite raccordable à une collecte

Country Status (8)

Country Link
US (1) US4609304A (enrdf_load_stackoverflow)
EP (1) EP0107842B1 (enrdf_load_stackoverflow)
BR (1) BR8305892A (enrdf_load_stackoverflow)
CA (1) CA1214723A (enrdf_load_stackoverflow)
DE (1) DE3364999D1 (enrdf_load_stackoverflow)
ES (1) ES526746A0 (enrdf_load_stackoverflow)
FR (1) FR2534964B1 (enrdf_load_stackoverflow)
NO (1) NO833869L (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689603B1 (fr) * 1992-04-07 1994-05-20 Coflexip Dispositif de montage d'une ligne flexible comportant un limiteur de courbure.
BR102020002512A2 (pt) * 2020-02-06 2021-08-17 Aker Solutions Do Brasil Ltda Arranjo para escoamento de fluidos em poços submarinos utilizando um módulo de conexão para suporte e integração

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500525A1 (enrdf_load_stackoverflow) * 1981-02-23 1982-08-27 Bretagne Atel Chantiers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1329310A (fr) * 1962-07-19 1963-06-07 Shell Int Research Accouplement télécommandé entre une canalisation et une tête de puits sous-marine
US3732923A (en) * 1967-11-01 1973-05-15 Rockwell Mfg Co Remote underwater flowline connection
US4086778A (en) * 1977-01-06 1978-05-02 Mobil Oil Corporation Subsea connection unit
US4286665A (en) * 1979-04-24 1981-09-01 Deep Oil Technology, Inc. Apparatus and method for conducting offshore well operations
US4378848A (en) * 1979-10-02 1983-04-05 Fmc Corporation Method and apparatus for controlling subsea well template production systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500525A1 (enrdf_load_stackoverflow) * 1981-02-23 1982-08-27 Bretagne Atel Chantiers

Also Published As

Publication number Publication date
ES8505020A1 (es) 1985-04-16
FR2534964B1 (enrdf_load_stackoverflow) 1985-01-18
DE3364999D1 (en) 1986-09-04
NO833869L (no) 1984-04-27
FR2534964A1 (enrdf_load_stackoverflow) 1984-04-27
CA1214723A (fr) 1986-12-02
EP0107842A1 (fr) 1984-05-09
US4609304A (en) 1986-09-02
ES526746A0 (es) 1985-04-16
BR8305892A (pt) 1984-05-29

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