EP0894938B1 - Dispositif de transfert de fluide entre un équipement de fond sous-marin et une unité de surface. - Google Patents

Dispositif de transfert de fluide entre un équipement de fond sous-marin et une unité de surface. Download PDF

Info

Publication number
EP0894938B1
EP0894938B1 EP98401720A EP98401720A EP0894938B1 EP 0894938 B1 EP0894938 B1 EP 0894938B1 EP 98401720 A EP98401720 A EP 98401720A EP 98401720 A EP98401720 A EP 98401720A EP 0894938 B1 EP0894938 B1 EP 0894938B1
Authority
EP
European Patent Office
Prior art keywords
pipe
flexible pipe
vertebrae
arch
seabed
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 - Lifetime
Application number
EP98401720A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0894938A1 (fr
Inventor
Pierre Antoine Désiré Savy
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.)
Technip France SAS
Original Assignee
Coflexip 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 Coflexip SA filed Critical Coflexip SA
Publication of EP0894938A1 publication Critical patent/EP0894938A1/fr
Application granted granted Critical
Publication of EP0894938B1 publication Critical patent/EP0894938B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • E21B43/013—Connecting a production flow line to an underwater well head
    • E21B43/0135—Connecting a production flow line to an underwater well head using a pulling cable

Definitions

  • the present invention relates to a fluid transfer device between underwater equipment such as a head well and a surface unit which can be constituted by a platform floating or a ship.
  • the main configurations are those known as names "LAZY S”, “LAZY WAVE”, “STEEP S”, “STEEP WAVE ".
  • the flexible line (s) connecting the basic equipment to the surface unit are associated with bodies intermediates which are means of positive buoyancy and so are constituted by flotation buoys or by an arch, which organs intermediaries divide each flexible pipe into two upper parts and lower and giving the upper part a concavity directed towards the area unit.
  • US Patent 5,505,560 relates to a system for transferring fluid comprising two upper and lower intermediate members dividing the flexible pipe in three parts, an upper part including an area has a concavity directed towards the surface unit, part intermediate located between the two intermediate bodies and having a area whose concavity is also directed towards the surface unit, and a lower part of which an area has a concavity directed towards the bottom marine, the free end of the lower part being connected to the equipment background.
  • the upper intermediate organ is constituted by an arch which is connected by a connecting cable to a fixed point on the seabed, while the lower intermediate member consists of flotation buoys arranged around the flexible pipe. It’s actually the combination of the two configurations "LAZY S" and "LAZY WAVE".
  • a method is described installation of a fluid transfer system, as well as the transfer usable for the implementation of the method.
  • the process consists of provide an intermediate member arranged laterally with respect to a line extending vertically from the surface unit, down a pipe flexible from the surface to fix it on the intermediate member, so to transfer the weight from the lower part of the pipe to the organ intermediate.
  • MBR is the minimum bend radius that the hose can admit without damage. Excessive curvature can cause damage which can take several forms which are described in the API document to which we can usefully refer.
  • the swell movements induce vertical and horizontal movements on the area unit.
  • a sea is considered shallow when the amplitudes of horizontal and / or vertical displacement induced by the waves and the swell is not negligible compared to the water depth. In practical, when the amplitudes are greater than 10% of the depth, so we consider that we are in shallow sea.
  • the movements of the surface unit transmit to the intermediate support element of the flexible force pipe (s) very important hydrodynamics. A consequence of these efforts hydrodynamics is, among other things, significant horizontal displacements of said arch, which results in a dynamic deformation of the flexible driving.
  • the object of the present invention is to propose a device for transfer of a fluid between downhole equipment and a surface unit which be usable regardless of the distance between the surface equipment and the area unit.
  • the present invention relates to a device of the above type, of the type comprising at least one flexible pipe extending in chain, an intermediate support and flotation member associated with said pipe and dividing the latter into at least two upper parts. and lower, the intermediate member communicating with a zone of the upper part, a concavity turned towards the bottom, means for retaining at least one zone of the lower part of the pipe, said retaining means being connected by means connecting to a fixed point for tensioning the area between the intermediate member and the retaining means, said retaining means and the fixed point communicating with the area between the retaining means and the terminal part of the conducts a mean curvature, the concavity of which is directed towards the downhole equipment, the intermediate member being connected to said fixed point, characterized in that the connecting means have a length at least equal to the minimum radius of curvature of the flexible pipe.
  • An advantage of the present invention lies in the fact that it is particularly interesting in oil operations with little water deep.
  • Another advantage of the present invention lies in the fact that it is applicable for downhole equipment that is offset laterally with respect to or under the surface unit which can be constituted by a production platform.
  • Another advantage is that the swell movements and waves cannot excessively distort pipes hoses or umbilicals connecting the surface unit to the bottom equipment, that is to say, the present invention makes it possible to prevent the radius of curvature of the deformation is less than the MBR at any point of the conduct.
  • the device according to the invention is intended to be included in a oil exploitation unit comprising a surface unit such that a platform 1 maintained on the surface of the sea 2, an equipment of bottom comprising in particular one or more well heads, shown schematically in Figure 1 and designated by reference 3, pipes flexible and / or umbilicals 4, an intermediate support and flotation 5.
  • the support and buoyancy element 5 constituted for example by an arch divides the flexible and / or umbilical duct (s) into at least Three parties.
  • the upper part or first part 6 of the flexible pipe is between the platform 1 and the arch 5 and includes a zone 6a whose concavity is turned towards the surface 2.
  • the second part 7 of the flexible pipe consists of the area resting on the arch 5 and having a concavity turned towards the bottom 8.
  • the third part 9 is between the arch 5 and the bottom 8 and comprises a zone 10, the concavity of which faces the well head 3 which can be located directly below platform 1 (figure 1) or offset laterally and at a certain distance from said platform 1, the portion of pipe connecting zone 10 to said wellhead being shown on the left of Figure 2.
  • This portion of pipe constituting a fourth part 11 of the flexible pipe.
  • a dead body 12 or other equivalent equipment is attached by any suitable means on or in the background 8.
  • the third part 9 of the flexible pipe 4 is connected, at least in the portion comprising zone 10, with dead body 12, the connection being made by means of a cable or an anchor 13 fixed to a end on the dead body 12 and, at the other end, at a fixing point 14 of said third part 9.
  • the attachment point 14 may be constituted by a collar 15 tightened around the pipe, the collar 15 possibly comprising two axis elements aligned opposite on each of which is fixed a cable or an anchor rod 13, the two anchor rods, when they are used, being fixed on the same anchor point 16 of the dead body 12.
  • the minimum radius is determined curvature or MBR.
  • MBR curvature
  • a length L is assigned to the anchor tie 13 so that it or at least equal to said MBR which has the effect of limiting the deformation of zone 10 to a certain average value, greater than the MBR of said pipe, which prevents irreversible damage of the type mentioned in said API documentation.
  • the zone 10 of the pipe has an average curvature between two extreme values, the nominal radius of curvature being determined as a function of the diameter of the conduct and conditions of use.
  • the arch 5 is connected to the dead body 12 by a cable or pulling anchor 17, one end of which is fixed directly to said arch 5 or at a point 18 of connection of two small cables 19 fixed to the base of said arch 5, the other end of the anchoring cable 17 being fixed to the dead body 12 and, preferably, at point 16 for anchoring the flexible pipe 4.
  • zone 10 of the third part 9 of the flexible pipe 4 passes through a set of vertebrae articulated 20, said set of vertebrae limiting the maximum curvature of said area to a value which can be predetermined.
  • the collar clamp 15 can be mounted around a part of the set of vertebrae 20 or between two vertebrae 21 of said assembly 20 and clamped directly around flexible pipe; preferably, the clamp 15 is disposed substantially in the middle of the length of the set of vertebrae 20.
  • the length L ′ of the set of vertebrae 20 is determined so that it is at least twice and preferably three times said MBR.
  • the length L “of the anchor rod of the arch 5 it depends on the water depth P between surface 2 and bottom 8, the length L “of the anchor rod 17 determining the depth of immersion of said arch 5.
  • the length L " is preferably also determined by depending on the amplitude of the swell and / or wave movements likely to occur in the operating sector, said amplitude can be for example of the order of 15 meters and more designated by D.
  • Arch 5 will be submerged to a depth at least equal to D of so as to minimize the effect of sea movements on said arch 5.
  • the immersion depth of arch 5 will be between 20 and 70% of the depth P and preferably equal to 50%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Supports For Pipes And Cables (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Catching Or Destruction (AREA)
  • External Artificial Organs (AREA)
EP98401720A 1997-08-01 1998-07-07 Dispositif de transfert de fluide entre un équipement de fond sous-marin et une unité de surface. Expired - Lifetime EP0894938B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9709892 1997-08-01
FR9709892A FR2766869B1 (fr) 1997-08-01 1997-08-01 Dispositif de transfert de fluide entre un equipement de fond sous-marin et une unite de surface

Publications (2)

Publication Number Publication Date
EP0894938A1 EP0894938A1 (fr) 1999-02-03
EP0894938B1 true EP0894938B1 (fr) 2001-09-12

Family

ID=9509944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401720A Expired - Lifetime EP0894938B1 (fr) 1997-08-01 1998-07-07 Dispositif de transfert de fluide entre un équipement de fond sous-marin et une unité de surface.

Country Status (13)

Country Link
US (1) US6109833A (zh)
EP (1) EP0894938B1 (zh)
CN (1) CN1208807A (zh)
AT (1) ATE205578T1 (zh)
AU (1) AU736476B2 (zh)
CA (1) CA2244273C (zh)
DE (1) DE69801623D1 (zh)
DK (1) DK0894938T3 (zh)
ES (1) ES2162697T3 (zh)
FR (1) FR2766869B1 (zh)
NO (1) NO318728B1 (zh)
OA (1) OA10868A (zh)
ZA (1) ZA986192B (zh)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO306826B2 (no) * 1998-06-12 1999-12-27 Statoilhydro Asa Anordning ved stigeror
AU1283600A (en) * 1998-11-23 2000-06-13 Foster Wheeler Energy Limited Tethered buoyant support for risers to a floating production vessel
US6415828B1 (en) * 2000-07-27 2002-07-09 Fmc Technologies, Inc. Dual buoy single point mooring and fluid transfer system
FR2824124B1 (fr) 2001-04-27 2003-09-19 Inst Francais Du Petrole Tube en materiau composite comportant une carcasse interne
FR2826051B1 (fr) * 2001-06-15 2003-09-19 Bouygues Offshore Installation de liaison fond-surface d'une conduite sous-marine reliee a un riser par au moins un element de conduite flexible maintenu par une embase
NO315284B1 (no) * 2001-10-19 2003-08-11 Inocean As Stigerör for forbindelse mellom et fartöy og et punkt på havbunnen
US6763862B2 (en) 2001-11-06 2004-07-20 Fmc Technologies, Inc. Submerged flowline termination at a single point mooring buoy
US6688348B2 (en) 2001-11-06 2004-02-10 Fmc Technologies, Inc. Submerged flowline termination buoy with direct connection to shuttle tanker
US6558215B1 (en) 2002-01-30 2003-05-06 Fmc Technologies, Inc. Flowline termination buoy with counterweight for a single point mooring and fluid transfer system
GB0409361D0 (en) * 2004-04-27 2004-06-02 Stolt Offshore Sa Marine riser tower
US7191836B2 (en) * 2004-08-02 2007-03-20 Kellogg Brown & Root Llc Dry tree subsea well communications apparatus and method using variable tension large offset risers
US7963721B2 (en) * 2004-09-21 2011-06-21 Kellogg Brown & Root Llc Distributed buoyancy subsea pipeline apparatus and method
US7025533B1 (en) * 2004-09-21 2006-04-11 Kellogg Brown & Root, Inc. Concentrated buoyancy subsea pipeline apparatus and method
FR2888305B1 (fr) * 2005-07-11 2008-12-12 Technip France Sa Methode et installation de raccordement d'une conduite sous-marine rigide et d'une conduite sous-marine flexible
GB2429992A (en) * 2005-09-09 2007-03-14 2H Offshore Engineering Ltd Production system
GB2450149A (en) * 2007-06-15 2008-12-17 Vetco Gray Controls Ltd A backup umbilical connection for a well installation
GB2479109B (en) * 2009-02-10 2012-12-26 Shell Int Research Free standing steel catenary risers
FR2954966B1 (fr) * 2010-01-05 2012-01-27 Technip France Ensemble de support d'au moins une conduite de transport de fluide a travers une etendue d'eau, installation et procede associes.
NO336854B1 (no) * 2011-03-21 2015-11-16 Nexans Modulær bøyestiver
NO2704945T3 (zh) 2011-05-06 2018-03-24
GB2495287B (en) * 2011-10-03 2015-03-11 Marine Resources Exploration Internat Bv A riser system for transporting a slurry from a position adjacent to the seabed to a position adjacent to the sea surface
FR2983233B1 (fr) * 2011-11-30 2016-01-01 Saipem Sa Installation de liaisons fond-surface flexibles multiples sur au moins deux niveaux
GB2527845B (en) 2014-07-04 2017-04-05 Subsea 7 Norway As Anchoring subsea flexible risers
BR102014028326A2 (pt) * 2014-11-14 2016-08-09 Qualihouse Automação Predial Ltda processo de detecção automática de ocupação de vagas de estacionamento por veículos
CN107630683B (zh) * 2017-08-09 2018-06-22 广州海洋地质调查局 一种用于天然气水合物开采的管路结构
EP3936749B1 (en) * 2020-07-06 2024-04-17 Siemens Gamesa Renewable Energy A/S Method for installing a gas transportation arrangement

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4650431A (en) * 1979-03-28 1987-03-17 Amtel, Inc Quick disconnect storage production terminal
NO160914C (no) * 1986-03-24 1989-06-14 Svensen Niels Alf Boeyelastningssystem for offshore petroleumsproduksjon.
EP0251488B1 (en) 1986-06-05 1991-11-06 Bechtel Limited Flexible riser system and method for installing the same
FR2627542A1 (fr) 1988-02-24 1989-08-25 Coflexip Dispositif de transfert de fluide entre le fond sous-marin et la surface
US5505560A (en) 1993-10-26 1996-04-09 Offshore Energie Development Corporation (Oecd) Fluid transfer system for an offshore moored floating unit
US5639187A (en) * 1994-10-12 1997-06-17 Mobil Oil Corporation Marine steel catenary riser system
GB2323876A (en) * 1995-12-19 1998-10-07 Foster Wheeler Energy Ltd Catenary riser system
NO960581L (no) * 1996-02-14 1997-08-15 Kvaerner Oilfield Prod As Produksjonsrörsystem til havs, samt en fremgangsmåte ved dets utlegging

Also Published As

Publication number Publication date
NO318728B1 (no) 2005-05-02
FR2766869A1 (fr) 1999-02-05
ATE205578T1 (de) 2001-09-15
DK0894938T3 (da) 2002-01-07
OA10868A (en) 2003-02-18
CA2244273A1 (en) 1999-02-01
FR2766869B1 (fr) 1999-09-03
ZA986192B (en) 1999-02-02
AU7615198A (en) 1999-02-11
US6109833A (en) 2000-08-29
AU736476B2 (en) 2001-07-26
EP0894938A1 (fr) 1999-02-03
DE69801623D1 (de) 2001-10-18
NO983407L (no) 1999-02-02
NO983407D0 (no) 1998-07-23
CA2244273C (en) 2008-04-29
CN1208807A (zh) 1999-02-24
ES2162697T3 (es) 2002-01-01

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