WO1999019661A1 - Conduite sous-marine de transfert de produits petroliers - Google Patents
Conduite sous-marine de transfert de produits petroliers Download PDFInfo
- Publication number
- WO1999019661A1 WO1999019661A1 PCT/FR1998/002154 FR9802154W WO9919661A1 WO 1999019661 A1 WO1999019661 A1 WO 1999019661A1 FR 9802154 W FR9802154 W FR 9802154W WO 9919661 A1 WO9919661 A1 WO 9919661A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- pipe according
- filling
- envelope
- petroleum products
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
Definitions
- the present invention relates to an underwater pipe for transferring petroleum products and, more particularly, to such a pipe of the type comprising at least one pipe for such products and a tubular protective casing through which said pipe passes. More particularly still, the present invention relates to such a pipe designed to be laid on or in the vicinity of very deep bottoms, of several hundred meters or more.
- the high mechanical resistance of the coating required at great depths is accompanied by an increase important in the density of the material used, this increase in density having an adverse effect on its thermal insulation properties. It is then necessary to further increase the thickness of the coating in order to obtain the required thermal insulation, which makes this solution excessively expensive at great depths.
- the abrasion resistance of such a coating is insufficient for one to consider laying by towing pipes sheathed on the seabed.
- the technique is also known according to which they pass through a conventional protective tubular casing capable of withstanding hydrostatic pressure.
- This envelope allows the deposit of pipes thus protected by towing.
- the tubular envelope can contain several pipes, each one being coated with a thin and not very dense thermal insulation coating (polyurethane foam, polyethylene, glass wool, rock wool, etc.).
- a thin and not very dense thermal insulation coating polyurethane foam, polyethylene, glass wool, rock wool, etc.
- the internal space of the envelope is pressurized, lying between the coated pipe (s) and the envelope itself, with an inert gas such as nitrogen for example. It is then necessary to maintain the nitrogen pressure in the envelope during the entire operating life of the pipes, which can last 20 years or more.
- This constraint proves to be costly, since the initial pressurization is expensive and maintenance difficult since the nitrogen diffuses slowly through the welds of the tubular casing.
- this pressure must be established during the construction of the shore line, on a beach for example. The high pressure to establish then can cause a dangerous explosion of the envelope. It is therefore necessary to increase the thickness of the envelope, but to the detriment of the buoyancy of the assembly, essential for its installation by towing, as we have seen above.
- the object of the present invention is therefore to produce an underwater pipe for transferring petroleum products, designed in particular to be installed on or near a very deep seabed, and having the required properties of mechanical strength, insulation thermal, and buoyancy necessary for its installation by towing, without this pipe being burdened with the cost and installation safety problems mentioned above in connection with the prior art in the matter.
- an underwater pipe for transferring petroleum products comprising at least one pipe for such products and an envelope. tubular protection through which said pipe passes, this pipe being remarkable in that it comprises a filling in a thermal insulation material mechanically resistant to the hydrostatic pressure of the underwater site where the pipe is installed, said filling bathing, the interior of the envelope, in water under pressure with the external hydrostatic pressure.
- the filling is made of a material lighter than water to adjust the weight of the pipe and provide it with the required buoyancy.
- the filling material is characterized by three fundamental properties: it performs a function thermal insulation of the pipe (s) passing through the envelope, it resists external hydrostatic pressure, and it provides the entire pipe with the buoyancy required for laying.
- the entire pipe being arranged so as to allow the water to penetrate inside, the casing no longer has to withstand either the hydrostatic pressure, at its installation site, or another internal gas pressure at earth, and can be of relatively small wall thickness, which is favorable to the buoyancy of the pipe.
- the absence of this high internal gas pressure in the pipe is favorable to the safety of construction sites and the laying of such pipes.
- FIG. 1 is a cross-sectional view of an embodiment of the pipe according to the invention.
- FIG. 2 is a diagram illustrating a method of assembling and laying said pipe.
- the pipe shown comprises a tubular casing 1, for example made of steel, enclosing a plurality of pipes 2 ⁇ , 2 2 , 3 ⁇ , 3 2 .
- the pipes 2 ⁇ , 2 2 may contain a multiphasic mixture of products from an oil production as described above, and the pipes 3 _., 3 2 a fluid for reheating the pipes 2_. , 2 2 , capable of preventing clogging of the pipes by the cooling of said mixture, to great depths.
- the envelope further contains a filling 4 ⁇ , 4 2 in a material having, at the same time, good thermal insulation properties and a very high mechanical resistance capable of maintaining its geometric integrity when it is subjected to the very high pressures prevailing on or in the vicinity of a large seabed, as will be seen below.
- the thermal insulation properties of the material must be such that it contributes effectively, in conjunction with the heating established by the lines 3 _., 3 2 , to maintain the pipes 2_, 2 2 at a temperature suitable for preventing clogging of these pipes.
- the internal space of the tubular casing 1 is not entirely occupied by the filling material or by the pipes 2 _., 2 2 , 3 ⁇ , 3 2 for reasons of construction, such as we will see it later.
- This space is subjected to the hydrostatic pressure which prevails outside this envelope.
- this space is essentially constituted by the annular space 5 which separates the filling 4 X , 4 2 from the envelope 1 and by the space which remains free in elongated longitudinal passages 6 ⁇ , 6 2 , hollowed out in the filling material to accommodate the pipes 2 ⁇ , 3 ⁇ , and 2 2 , 3 2 respectively.
- the passages 6_, 6 2 are in fluid communication with the annular space 5 and are therefore also under pressure with the pressure from the seabed.
- the annular space 5 can be maintained by wedges (not shown) projecting, for example, from the periphery of the filling material.
- the inner and outer faces of the envelope 1 can be pierced with holes 7 ⁇ , 7 2 , 7 3 establishing a fluid communication between these two faces, these holes being distributed throughout the conduct.
- a composite product from the family of so-called "syntactic" products is chosen to constitute this filling.
- Such a product differs from the materials mentioned in the preamble to this description by its composition, its price and its low density. It consists of microspheres, and possibly macrospheres, embedded in a matrix consisting of an epoxy resin, polyurethane, or polypropylene for example.
- BMTI France
- Syntactic products allow these constraints to be satisfied. They are also moldable which makes it possible to constitute the filling by placing on line pairs of half-shells 4_, 4 2 enveloping the pipes 2 X , 2 2 , 3 _., 3 2 , as shown in FIG. molding the half-shells, cleaning therein gutters capable of delimiting, after assembly of the half-shells, the passages 6 ⁇ , 6 2 . These passages are in fluid communication with the annular space 5 through mounting gaps 8 between half-shells. The passages 6 ⁇ , 6 2 are therefore at the high hydrostatic pressure of the seabed.
- FIG. 2 illustrates the various phases of the assembly and laying of the pipe according to the invention.
- This assembly can be practiced on a shore, or on a beach for example. We proceed first to the progressive assembly, by butt welding, of sections of the pipes 2 _., 2 2 and 3 _., 3 2 , of 12 meters in length for example, then to the finishing of the ends such as the covering of these pipes with an anti-corrosion protection material.
- a bundle is made up of the pipes 2 ⁇ , 2 2 , 3 lr 3 2 . Pairs of half-shells 4 X , 4 2 are then butted one after the other, around the bundle of newly assembled pipes. We slide on the last pair of half-shells placed a section 1_ of the envelope 1 to weld it to the previous section. The pipe thus formed is then and optionally provided with anodes 9 for protection against corrosion. The operation is repeated as many times as necessary to form the length of pipe ready for towing to its final installation site.
- the invention is not limited to the embodiment described and shown which has been given only by way of example. This is how water could be introduced into the envelope through one end of it rather than through holes distributed over its entire length.
- the annular space 5 is filled during the collapse of the envelope.
- the deformation which may result from this for the envelope is without disadvantage, this playing only a role of protection against abrasion, and of ease of assembly, as we have seen above.
- the filling is shown as consisting of pairs of half-shells. It is clear that the successive sections of this filling could be constituted by groups of complementary shells, in different numbers.
- the invention is not limited to the protection of pipelines such as those referenced 2 ⁇ , 2 2 and 3 ⁇ , 3 2 in the drawing. On the contrary, it extends to pipes containing any number of pipes and service lines, which can also include power supply lines and wellhead control lines installed on the seabed.
- the envelope could be made of other conventional materials, PVC or plastic reinforced with glass fibers, for example.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU94477/98A AU738206B2 (en) | 1997-10-10 | 1998-10-08 | Submarine pipeline for transporting petroleum products |
GB0006833A GB2345111B (en) | 1997-10-10 | 1998-10-08 | Submarine pipeline for transporting petroleum products |
EA200000340A EA001512B1 (ru) | 1997-10-10 | 1998-10-08 | Подводный трубопровод для транспортировки нефтепродуктов |
BR9812897-3A BR9812897A (pt) | 1997-10-10 | 1998-10-08 | Tubulação submarina de transferência de produtos petrolìferos |
US09/546,530 US6213157B1 (en) | 1997-10-10 | 2000-04-10 | Submarine pipeline for transporting petroleum products |
NO20001849A NO331576B1 (no) | 1997-10-10 | 2000-04-10 | Undersjoisk rorledning for transport av petroleumsprodukter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9712685A FR2769682B1 (fr) | 1997-10-10 | 1997-10-10 | Conduite sous-marine de transfert de produits petroliers |
FR97/12685 | 1997-10-10 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/546,530 Continuation US6213157B1 (en) | 1997-10-10 | 2000-04-10 | Submarine pipeline for transporting petroleum products |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999019661A1 true WO1999019661A1 (fr) | 1999-04-22 |
Family
ID=9512085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/002154 WO1999019661A1 (fr) | 1997-10-10 | 1998-10-08 | Conduite sous-marine de transfert de produits petroliers |
Country Status (9)
Country | Link |
---|---|
US (1) | US6213157B1 (fr) |
AU (1) | AU738206B2 (fr) |
BR (1) | BR9812897A (fr) |
EA (1) | EA001512B1 (fr) |
FR (1) | FR2769682B1 (fr) |
GB (1) | GB2345111B (fr) |
NO (1) | NO331576B1 (fr) |
OA (1) | OA11402A (fr) |
WO (1) | WO1999019661A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2346424A (en) * | 1999-01-13 | 2000-08-09 | Kvaerner Oil & Gas Ltd | Subsea pipeline |
DE20020563U1 (de) * | 2000-12-05 | 2002-04-11 | Baumann, Roland, Dipl.-Ing. (FH), 89081 Ulm | Vorrichtung zur Isolation von Mehrfachrohrleitungen |
WO2020115079A1 (fr) | 2018-12-04 | 2020-06-11 | Subsea 7 Norway As | Chauffage de pipelines sous-marins |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19618370C1 (de) * | 1996-05-09 | 1997-08-21 | Gesundheitstechnik Anton Kastn | Verfahren zur Herstellung eines wärmegedämmten Rohrabschnittes für eine Rohrleitung sowie Rohrabschnitt |
EP0974784A1 (fr) * | 1998-07-21 | 2000-01-26 | SPF Solartechnik Prüfung Forschung Ingenieurschule Rapperswil ITR | Tuyau pour fluides avec isolation thermique |
GB9912451D0 (en) * | 1999-05-27 | 1999-07-28 | Saipem Spa | Insulated pipe structure and methods of making such structures |
US6397895B1 (en) | 1999-07-02 | 2002-06-04 | F. Glenn Lively | Insulated pipe |
US8044119B2 (en) * | 1999-10-07 | 2011-10-25 | James E. Landry | Insulating material of epoxy compound, acrylic resin, ceramic particles and curing agent |
FR2804441B1 (fr) * | 2000-01-27 | 2006-09-29 | Bouygues Offshore | Materiau complexe et flotteur en comprenant |
FR2816030B1 (fr) * | 2000-10-27 | 2003-05-16 | Atofina | Utilisation d'une composition d'isolation thermique pour l'isolation de canalisations contenues dans une conduite de transfert de produits petroliers |
FR2821917B1 (fr) * | 2001-03-09 | 2004-04-02 | Bouygues Offshore | Dispositif d'isolation thermique d'au moins une conduite sous-marine comprenant des cloisons etanches |
US7214114B2 (en) * | 2001-09-15 | 2007-05-08 | Trelleborg Crp Ltd. | Buoyancy element and module |
GB2379681A (en) | 2001-09-17 | 2003-03-19 | Balmoral Group | Marine buoyancy unit |
CA2408428C (fr) * | 2001-10-17 | 2010-09-21 | Lorne R. Heise | Conduit fluidique |
FR2841632B1 (fr) * | 2002-07-01 | 2004-09-17 | Bouygues Offshore | "dispositif d'isolation thermique d'au moins une conduite sous-marine comprenant un materiau isolant a changement de phase confine dans des poches" |
US7622683B2 (en) * | 2004-07-26 | 2009-11-24 | Terry Jeffrey Corbishley | Marine and submarine pipelines |
NO323381B2 (no) * | 2005-01-31 | 2007-04-16 | Statoil Asa | Beskyttelseshylse for omgivelse av en langstrakt gjenstand |
NO325540B1 (no) * | 2005-02-11 | 2008-06-16 | Nexans | Umbilical og fremgangsmate for dens fremstilling |
US8925543B2 (en) * | 2009-01-13 | 2015-01-06 | Aerojet Rocketdyne Of De, Inc. | Catalyzed hot gas heating system for pipes |
FI123553B (fi) * | 2011-06-17 | 2013-07-15 | Sampo Humalainen | Putkikokoonpano kaukolämpöverkkoa varten |
US8721222B2 (en) | 2011-11-04 | 2014-05-13 | Chevron U.S.A. Inc. | Lateral buckling mitigation apparatus, methods and systems for use with subsea conduits |
US8555929B2 (en) * | 2011-11-28 | 2013-10-15 | Aeroflex Usa | Multi-hole insulation tube |
DE202011052294U1 (de) * | 2011-12-14 | 2012-06-22 | herotec GmbH Flächenheizung | Rohrleitung |
FI127880B (en) * | 2015-09-08 | 2019-04-30 | Uponor Innovation Ab | Long-distance pre-insulated pipe unit and local heat distribution system |
US10371288B1 (en) | 2018-10-22 | 2019-08-06 | Chevron U.S.A. Inc. | Apparatus and method for reducing impact of stresses on a subsea pipeline |
NO344929B1 (en) * | 2018-12-04 | 2020-07-06 | Subsea 7 Norway As | Method and system for heating of subsea pipelines |
US11846370B2 (en) * | 2019-03-26 | 2023-12-19 | Titeflex Corporation | Multilayer composite pipe and pipe assemblies including reflective insulation |
US11946583B1 (en) * | 2020-03-18 | 2024-04-02 | Durex International Corp. | Flexible conforming silicone rubber heater for complex geometry fluid lines and method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US3547161A (en) * | 1968-02-20 | 1970-12-15 | Shell Oil Co | Insulated pipeline for transporting liquid natural gas |
FR2174271A1 (fr) * | 1972-03-02 | 1973-10-12 | Rockwool Ab | |
EP0400689A1 (fr) * | 1984-04-25 | 1990-12-05 | Coflexip | Conduite calorifugée pour le transport de fluides |
EP0779467A1 (fr) * | 1995-12-12 | 1997-06-18 | Halliburton Company | Méthode d'isolation de faiseaux de tubes |
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US3317074A (en) * | 1963-06-17 | 1967-05-02 | Douglas Aircraft Co Inc | Cryogenic containers |
GB1579125A (en) * | 1976-06-14 | 1980-11-12 | Sigmund F | Heat-insulated pipe-lines |
US4194536A (en) * | 1976-12-09 | 1980-03-25 | Eaton Corporation | Composite tubing product |
US4231436A (en) * | 1978-02-21 | 1980-11-04 | Standard Oil Company (Indiana) | Marine riser insert sleeves |
US4393901A (en) * | 1980-09-25 | 1983-07-19 | Minnesota Mining And Manufacturing Company | Low-permeability hollow spheres and pipe filled with the spheres for temporary weight reduction |
EP0112706B1 (fr) * | 1982-12-23 | 1987-04-01 | Webco Industrial Rubber Limited | Tuyau isolé |
FR2557671B1 (fr) * | 1983-12-28 | 1986-08-01 | Hutchinson Sa | Perfectionnements apportes aux moyens d'isolation thermique de tuyauteries soumises a des contraintes thermiques, hydrostatiques et mecaniques et a leur mise en place, et procedes de realisation desdits moyens d'isolation |
SE453939B (sv) * | 1985-09-04 | 1988-03-14 | Skega Ab | Isolerat ror for undervattensbruk |
FR2598713B1 (fr) * | 1986-05-16 | 1988-11-10 | Inst Francais Du Petrole | Nouveau materiau de remplissage et de flottabilite. procede de fabrication et ensembles tubulaires incorporant ce materiau |
US5795102A (en) * | 1992-08-12 | 1998-08-18 | Corbishley; Terrence Jeffrey | Marine and submarine apparatus |
US6155305A (en) * | 1994-08-29 | 2000-12-05 | Sumner; Glen R. | Offshore pipeline with waterproof thermal insulation |
NO303917B1 (no) * | 1996-09-05 | 1998-09-21 | Alcatel Kabel Norge As | Undersjöisk ledning omfattende et antall fluid/gass-förende stålrör |
US6058979A (en) * | 1997-07-23 | 2000-05-09 | Cuming Corporation | Subsea pipeline insulation |
-
1997
- 1997-10-10 FR FR9712685A patent/FR2769682B1/fr not_active Expired - Fee Related
-
1998
- 1998-10-08 EA EA200000340A patent/EA001512B1/ru not_active IP Right Cessation
- 1998-10-08 BR BR9812897-3A patent/BR9812897A/pt not_active IP Right Cessation
- 1998-10-08 WO PCT/FR1998/002154 patent/WO1999019661A1/fr active IP Right Grant
- 1998-10-08 GB GB0006833A patent/GB2345111B/en not_active Expired - Fee Related
- 1998-10-08 AU AU94477/98A patent/AU738206B2/en not_active Ceased
-
2000
- 2000-04-10 OA OA1200000104A patent/OA11402A/fr unknown
- 2000-04-10 US US09/546,530 patent/US6213157B1/en not_active Expired - Lifetime
- 2000-04-10 NO NO20001849A patent/NO331576B1/no not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3547161A (en) * | 1968-02-20 | 1970-12-15 | Shell Oil Co | Insulated pipeline for transporting liquid natural gas |
FR2174271A1 (fr) * | 1972-03-02 | 1973-10-12 | Rockwool Ab | |
EP0400689A1 (fr) * | 1984-04-25 | 1990-12-05 | Coflexip | Conduite calorifugée pour le transport de fluides |
EP0779467A1 (fr) * | 1995-12-12 | 1997-06-18 | Halliburton Company | Méthode d'isolation de faiseaux de tubes |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2346424A (en) * | 1999-01-13 | 2000-08-09 | Kvaerner Oil & Gas Ltd | Subsea pipeline |
GB2346424B (en) * | 1999-01-13 | 2003-02-12 | Kvaerner Oil & Gas Ltd | Subsea pipeline |
DE20020563U1 (de) * | 2000-12-05 | 2002-04-11 | Baumann, Roland, Dipl.-Ing. (FH), 89081 Ulm | Vorrichtung zur Isolation von Mehrfachrohrleitungen |
WO2020115079A1 (fr) | 2018-12-04 | 2020-06-11 | Subsea 7 Norway As | Chauffage de pipelines sous-marins |
GB2579576A (en) * | 2018-12-04 | 2020-07-01 | Subsea 7 Norway As | Heating of subsea pipelines |
GB2579576B (en) * | 2018-12-04 | 2021-01-27 | Subsea 7 Norway As | Heating of subsea pipelines |
US12066135B2 (en) | 2018-12-04 | 2024-08-20 | Subsea 7 Norway As | Heating of subsea pipelines |
Also Published As
Publication number | Publication date |
---|---|
GB2345111A (en) | 2000-06-28 |
EA001512B1 (ru) | 2001-04-23 |
NO20001849D0 (no) | 2000-04-10 |
BR9812897A (pt) | 2000-08-08 |
GB2345111B (en) | 2002-07-31 |
US6213157B1 (en) | 2001-04-10 |
AU738206B2 (en) | 2001-09-13 |
NO331576B1 (no) | 2012-01-30 |
EA200000340A1 (ru) | 2000-10-30 |
NO20001849L (no) | 2000-05-16 |
AU9447798A (en) | 1999-05-03 |
FR2769682B1 (fr) | 1999-12-03 |
GB0006833D0 (en) | 2000-05-10 |
FR2769682A1 (fr) | 1999-04-16 |
OA11402A (fr) | 2004-04-12 |
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