EP0059376B1 - Modular installation for subsea oil production - Google Patents

Modular installation for subsea oil production Download PDF

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Publication number
EP0059376B1
EP0059376B1 EP82101213A EP82101213A EP0059376B1 EP 0059376 B1 EP0059376 B1 EP 0059376B1 EP 82101213 A EP82101213 A EP 82101213A EP 82101213 A EP82101213 A EP 82101213A EP 0059376 B1 EP0059376 B1 EP 0059376B1
Authority
EP
European Patent Office
Prior art keywords
connector
module
wellhead
auxiliary module
oil production
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
EP82101213A
Other languages
German (de)
French (fr)
Other versions
EP0059376A1 (en
Inventor
Jean-Paul Roblin
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.)
Alsthom Atlantique SA
Original Assignee
Alsthom Atlantique 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
Priority to FR8103506A priority Critical patent/FR2500525B1/fr
Priority to FR8103506 priority
Application filed by Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Publication of EP0059376A1 publication Critical patent/EP0059376A1/en
Application granted granted Critical
Publication of EP0059376B1 publication Critical patent/EP0059376B1/en
Expired legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01Methods 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
    • E21B43/013Connecting a production flow line to an underwater well head
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof
    • E21B33/035Well heads; Setting-up thereof specially adapted for underwater installations
    • E21B33/037Protective housings therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01Methods 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
    • E21B43/017Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station

Description

  • The present invention relates to an underwater oil production installation.
  • Subsea oil production installations include a certain number of equipment such as well heads which are constituted by pipes fitted with so-called master valves, and by lateral valves, connecting pipes connecting the well heads to an architecture grouping together all the arrivals and on which are arranged pipes, valves and from which a bundle of operating pipes leads to the surface.
  • The installation and maintenance of this set requires the intervention of diving suits, intervention submarine, etc. When in deep water, such handling is delicate and dangerous.
  • The present invention aims to group in modular assemblies the bodies to be subjected to maintenance and to allow the installation of these assemblies and their ascent without having to use plungers or guide lines.
  • The subject of the invention is therefore a modular installation for underwater petroleum production comprising a satellite unit, the production of which is routed by a collection to a central architectural structure grouping functional modules from which the production is discharged, characterized in that said satellite unit comprises a well head connected by a. connector at the top of a borehole piping, an individual, liftable auxiliary module being associated with said wellhead, this module enclosing the operating and control members and being connected on the one hand to the well head by a first connector and on the other hand at one end of said collection (10) by a second connector, said well head and said auxiliary module being installed on a base in two separate cells, of shape complementary to said head and of said auxiliary module, said auxiliary module comprising surface-controllable means making it possible to disconnect it from the collection and from the well head, and to separate it from the base.
  • According to another characteristic of the invention, the auxiliary module comprises a handling head capable of cooperating with a handling tool suspended from suspension means comprising pipes necessary for the operation of the connectors and transmitting the orders given at the surface.
  • We will now describe an embodiment of the invention with reference to the accompanying drawing in which:
    • Figure 1 shows a general schematic perspective view of an installation according to the invention.
    • FIG. 2 shows a well head and an auxiliary module according to the invention.
    • Figures 3 to 9 give a schematic representation showing the kinematics of the connections of the modules according to the invention with the bodies which surround them.
    • FIG. 10 shows in greater detail a detail of FIG. 1.
  • Referring to Figure 1, there is shown an installation according to the present invention. It includes a certain number of satellite well heads 1 placed on bases 2. Some bases receive a well head, others several. Each satellite wellhead is associated with an auxiliary module 3 which is a module comprising valves.
  • The installation also comprises an architectural structure 4 which serves to support a certain number of elements. In particular, this structure receives functional modules such as valve modules 5 and a routing module 6; it also receives a base 7 of a bundle of operating pipes 8 leading to the surface where an operating platform, not shown, performs certain treatments on crude oil. After this treatment, the oil is lowered to the bottom by a pipes 8 and then leaves from the bottom, via a pipe 9 to reach the surface at a loading buoy. The structure 4 also includes pipes, not visible in the figure, connecting the base 7 to the valve modules 5, as well as the routing module 6, from a part to the base 7 and on the other hand to each of the valve modules 5. Such a routing module 6 is used to send a tool, for example a tool for cleaning the pipes to any wellhead from a single pipe at the start. A collection 10 connects each auxiliary module 3 to a valve module 5. In the example in the figure, there are only satellite wells, but it is also possible to have one or more well heads on the architectural structure 4. In this case, the well head is directly connected to a valve module 5 and there is no chain: auxiliary module 3, connecting pipe 10 and valve module 5 but only the valve module 5.
  • In the figure, we see a ship 11 descending an auxiliary module 3 for its installation on a base 2. The module 3 is suspended from a string of rods 12.
  • The module is provided with cameras and possibly with an acoustic transmitter so as to identify the cell provided in the base 2 for the module and to allow guidance from the surface. The module is also provided with ramps which cooperate with complementary means of the cell in order to ensure the correct orientation of the connectors which will have to be connected to the link 10 and to the well head 1. These connections are made automatically from 'orders given on the surface. Electro-hydraulic lines are juxtaposed to the rod train 12 for this purpose to control the jacks allowing these connections.
  • FIG. 2 represents a well head 1 and a auxiliary module 3. These modules are installed on the base 2.
  • The wellhead essentially comprises a connector 13 intended to make the connection with the upper part 44 of the piping which “covers the borehole. This piping comprises a central channel through which the oil passes and an annular channel which is used for the needs of the service for example one sends there a fluid under pressure if the oil flow is too low, one can also send a fluid under pressure there for hunting, for example, a cleaning tool that has been sent into the central channel.
  • Above the connector 13, the well head comprises a first set of valves, the operating cylinder 14 of which is seen for the valve controlling the annular channel and the operating cylinder 15 for the valve controlling the central channel. A second set of valves is located a little above and is controlled respectively by a jack 16 and a jack 17. Between these two sets of valves, is located a lateral deflecting whistle 18 through which one exits laterally in two separate pipes 19 and 20, leading to a fixed connector 21, the central channel and the annular channel. The assembly is enclosed in a capsule 22 serving as mechanical protection. This capsule is filled with sea water in equi-pressure with the external environment and additives are introduced therein so as to avoid corrosion and the deposit of algae, and other living organisms. A handling head 45 is located at the top of the capsule for its installation. In ordinary service, the wellhead does not require any maintenance since the valves 14, 15 are permanently open and the valves 16 and 17 permanently closed, the operation being done by the lateral conduits 19, 20. We have therefore grouped in the wellhead only normally fixed components therefore not very vulnerable. On the contrary, the operating valves and other movable members are grouped in the auxiliary modules 3, valve modules 5 and routing module 6 which are all easily liftable.
  • All these modules are also enclosed in mechanical protection capsules and filled with sea water to which anti-corrosion additives have been added.
  • In this figure 2 we therefore see an auxiliary module 3 associated with the wellhead 1. It is a module essentially comprising valves for the pipe 19, the pipe 20 and a valve allowing the "by-pass between these two lines. This entire valve circuit leads to an input connector 23 and to an output connector 24.
  • The assembly is located in a capsule 25 which comprises a handling head 26 and an anchoring connector 27. The capsule also comprises a connector 28 for the remote control of the valves of the module. The power cables of this remote control follow the collection 10 and rise to the surface by the bundle of pipes 8 called "Riser " .
  • The end of the collection 10 includes a connector 29 which can move slightly axially in a sleeve 30 linked to the base 2, to allow connection with the connector 24.
  • Figures 3 to 9 give schematic representations showing the kinematics of the connection of connectors 23 and 24 with connectors 21 and 29. These figures also apply to the connection of valve modules 5, identical to auxiliary modules 3, with d on the one hand the collectors 10 whose connectors are fixed at this end, contrary to the connector 29 located at the end of the side of the auxiliary module, and on the other hand with conduits linked to the architectural structure 4 leading on the one hand to the switching module 6 and at the base 7. These pipes, not shown, include a connector intended to be connected to a connector such as 24 and also include a freedom of axial movement like the connector 29. Referring to the figure 3, the capsule 25 of an auxiliary module 3 or of a valve module 5 has been shown diagrammatically at 31.
  • . In this case, it is a valve module 5 since it is placed between one end of a collection 10 with its connector 32 fixedly mounted in its sheath 30 and one end of a pipe 33 linked to the architectural structure 4. As mentioned above, this end has a connector 34 which can move axially, for example by means of a loop formed at the end of the pipe.
  • In this figure, the fixed connector 32 of the collection end 10 therefore corresponds to the fixed connector 21 in the case of a connection of an auxiliary module 3 with a well head 1 (FIG. 2) and the mobile connector 34 corresponds to the movable connector 29 on the other end of the collection 10.
  • All of the module's members are mounted on a mobile cradle 35 relative to the capsule 31. All of the valves are shown diagrammatically at 36. We find the inlet connector 23 and the outlet connector 24 as in the case of 'an auxiliary module. Jacks 37 and 38 move the cradle and connectors 23 and 24 can also move axially relative to the cradle thanks to jacks 39 and 40.
  • At the start, before connection, all the jacks are in the retracted position, the cradle 35 is in the middle position, this is the position in FIG. 3.
  • In FIG. 4, the connector 24 is translated to the right to meet the movable connector 34 by the extension of the jack 40.
  • In Figure 5, the cradle is translated to the right by the extension of the cylinder 37. The two connectors 24 and 34 are in contact.
  • In FIG. 6, the dogs 41 are locked. The connection is completed on the side of the architectural structure 4.
  • In FIG. 7, the connector 23 is translated to the left to meet the fixed connector of the end of the connecting pipe 10 by the extension of the jack 39.
  • In Figure 8 the cradle 35 is translated to the left by the extension of the jack 38, the jack 37 contracts freely. Connectors 32 and 23 are in contact. During the movement of the cradle 35 to the left, the movable connector 34 is driven in this movement.
  • In FIG. 9, the dogs 42 are locked. The connection is finished.
  • When you wish to raise the module for maintenance, you proceed in the opposite direction. The connection operations described above are controlled from the surface and the orders are transmitted by remote control cables running along the rod train used for the descent and ascent of the functional modules. The anchoring connections by the connectors 13 of the well heads 1 or by the connectors 27 of the auxiliary modules 3 or of the functional modules of the architectural structure 4 are also controlled from the surface and transmitted by these same cables.
  • Referring now to FIG. 10, we see the descent, for its installation on the base 2, of an auxiliary module 3. The process is identical for a valve module 5 or a routing module 6.
  • A handling tool 46 is connected to the auxiliary module 3 by its handling head 26 (fig. 2) and the assembly is lowered by means of a carrying cable 12 or else of a string of rods with an umbilical pipe attached for the remote controls for the actuators and the tool operating devices.
  • The handling tool 46 comprises horizontal thrusters 47 and orientation nozzles 48 which cooperate with optical or acoustic means for guiding and orienting the module. Once the module has been placed in its cell 49 and the connections have been made with the connections 21 and 29, the handling tool 46 is reassembled.

Claims (2)

1. A modular undersea oil production plant comprising a satellite unit the oil production of which is conveyed through a collector pipe (10) to a central structure (4) having functional modules (5, 6) from which the produced oil is removed, characterized in that said satellite unit comprises a wellhead (1) which is linked by a connector (13) to the upper part of a well pipe (44), and comprises a raisable individual auxiliary module (3) which is associated to said wellhead, includes the operation and control components and is linked to the wellhead by a first connector (23) and to an end of said collector pipe (10) by a second connector (24), said wellhead (1) and said auxiliary module (3) being installed on a template (2) in two distinct cavities of complementary shape with respect to said head and said auxiliary module, said auxiliary module comprising means which can be controlled from the water surface and which allow its disconnection from the collector pipe and from the wellhead and its removal from the template (2).
2. A plant as claimed in claim 1, characterized in that said auxiliary module (3) comprises a manipulation head (26) which can cooperate with a manipulation tool (46) hanging on suspension means (12) which comprise tubes necessary to operate the connectors and to transmit the instructions from the water surface to the module.
EP82101213A 1981-02-23 1982-02-18 Modular installation for subsea oil production Expired EP0059376B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8103506A FR2500525B1 (en) 1981-02-23 1981-02-23
FR8103506 1981-02-23

Publications (2)

Publication Number Publication Date
EP0059376A1 EP0059376A1 (en) 1982-09-08
EP0059376B1 true EP0059376B1 (en) 1985-02-20

Family

ID=9255504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101213A Expired EP0059376B1 (en) 1981-02-23 1982-02-18 Modular installation for subsea oil production

Country Status (8)

Country Link
US (1) US4452312A (en)
EP (1) EP0059376B1 (en)
BR (1) BR8200946A (en)
CA (1) CA1185894A (en)
DE (1) DE3262360D1 (en)
ES (1) ES509828A0 (en)
FR (1) FR2500525B1 (en)
NO (1) NO820538L (en)

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FR2534964B1 (en) * 1982-10-26 1985-01-18 Bretagne Atel Chantiers
FR2556441B1 (en) * 1983-12-07 1986-08-22 Alsthom Atlantique Apparatus with floating sleeve for sealed, reversible connection and remote control of pipes, especially underwater
FR2556407B1 (en) * 1983-12-12 1986-08-08 Elf Aquitaine Underwater installation and method for setting up sub-assemblies, elements of such underwater installation
NO852370L (en) * 1984-06-14 1985-12-16 Alsthom Atlantique Active module for subsea installations.
FR2610984B1 (en) * 1987-02-17 1989-05-05 Elf Aquitaine Tool for underwater connections on oil production station
GB8707307D0 (en) * 1987-03-26 1987-04-29 British Petroleum Co Plc Sea bed process complex
BR8907229A (en) * 1988-02-06 1991-03-05 Mobil Oil Corp Replacement tool for a body with opposite faces under subjection between two confronting plates
US4919210A (en) * 1988-09-30 1990-04-24 Schaefer Jr Louis E Subsea wellhead protection system
US5259458A (en) * 1991-09-19 1993-11-09 Schaefer Jr Louis E Subsea shelter and system for installation
BR9703159A (en) * 1997-05-14 1998-12-22 Cbv Ind Mecanica Device connecting a rigid duct to a flexible duct
NO306481B1 (en) * 1997-11-03 1999-11-08 Kongsberg Offshore As Device for a drilling template for wells at sea
US6059039A (en) * 1997-11-12 2000-05-09 Exxonmobil Upstream Research Company Extendable semi-clustered subsea development system
DE69836261D1 (en) * 1998-03-27 2006-12-07 Cooper Cameron Corp Method and device for drilling multiple subsea wells
US6003604A (en) * 1998-04-09 1999-12-21 Kraerner Oilfield Products Subsea wellhead connection assembly and method of installation
US5983822A (en) * 1998-09-03 1999-11-16 Texaco Inc. Polygon floating offshore structure
US6230645B1 (en) 1998-09-03 2001-05-15 Texaco Inc. Floating offshore structure containing apertures
US6422315B1 (en) * 1999-09-14 2002-07-23 Quenton Wayne Dean Subsea drilling operations
NO313676B1 (en) * 2000-02-18 2002-11-11 Abb Offshore Systems As Thermal protection of underwater installations
BR0107018B1 (en) * 2001-12-28 2011-07-12 method for the construction of a wide-ranging well arrangement for the production, transport and exploitation of mineral deposits, well arrangement thus constructed and method for the construction of a network of pipelines for the transport and storage of fluids.
WO2005111369A1 (en) * 2004-05-03 2005-11-24 Exxonmobil Upstream Research Company System and vessel for supporting offshore fields
CA2724938C (en) * 2009-12-18 2017-01-24 Fluor Technologies Corporation Modular processing facility
US20110299930A1 (en) * 2010-06-04 2011-12-08 Messina Frank D Subsea oil leak stabilization system and method
US10132146B2 (en) 2011-09-23 2018-11-20 Cameron International Corporation Adjustable fracturing head and manifold system
US9068450B2 (en) 2011-09-23 2015-06-30 Cameron International Corporation Adjustable fracturing system
US8978763B2 (en) 2011-09-23 2015-03-17 Cameron International Corporation Adjustable fracturing system
US8839867B2 (en) 2012-01-11 2014-09-23 Cameron International Corporation Integral fracturing manifold
US10323475B2 (en) * 2015-11-13 2019-06-18 Cameron International Corporation Fracturing fluid delivery system

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Also Published As

Publication number Publication date
CA1185894A (en) 1985-04-23
BR8200946A (en) 1983-01-04
ES8303602A1 (en) 1983-02-01
NO820538L (en) 1982-08-24
ES509828A0 (en) 1983-02-01
EP0059376A1 (en) 1982-09-08
ES509828D0 (en)
DE3262360D1 (en) 1985-03-28
US4452312A (en) 1984-06-05
FR2500525B1 (en) 1985-05-03
CA1185894A1 (en)
FR2500525A1 (en) 1982-08-27

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