GB1434357A - Method of constructing a long pipeline on the floor of a body of water - Google Patents

Method of constructing a long pipeline on the floor of a body of water

Info

Publication number
GB1434357A
GB1434357A GB4316772A GB4316772A GB1434357A GB 1434357 A GB1434357 A GB 1434357A GB 4316772 A GB4316772 A GB 4316772A GB 4316772 A GB4316772 A GB 4316772A GB 1434357 A GB1434357 A GB 1434357A
Authority
GB
United Kingdom
Prior art keywords
pipe section
vessels
pressure
water
floats
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
GB4316772A
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.)
Duyster T H
Original Assignee
Duyster T H
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 Duyster T H filed Critical Duyster T H
Priority to GB4316772A priority Critical patent/GB1434357A/en
Priority to NL7312728A priority patent/NL7312728A/xx
Publication of GB1434357A publication Critical patent/GB1434357A/en
Expired legal-status Critical Current

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
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/12—Laying or reclaiming pipes on or under water
    • F16L1/16—Laying or reclaiming pipes on or under water on the bottom
    • F16L1/163—Laying or reclaiming pipes on or under water on the bottom by varying the apparent weight of the pipe during the laying operation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

1434357 Laying sub-aqueous pipes T H DUYSTER 17 Dec 1973 [18 Sept 1972] 43167/72 Heading B7M [Also in Division F2] A method of constructing a pipeline on the floor of a body of water, e.g. ocean, in which during transportation under water and laying and connecting to existing pipeline a long perfabricated pipe section is subjected to tensile forces and kept in a floating position. In the embodiment shown in Fig. 2, the tensile forces in the pipe section 1 are produced by vessels 2 (only one shown) connected to opposite ends of the pipe section 1 by cables 4, which pull in opposite directions with different forces to give a net movement in direction A. The pipe section 1 is kept in a floating condition by means of submarine floats 5 and individually adjustable buoyancy floats 7 connected to the pipe section 1 by claws 8, releasable by means of explosion bolts 22. The floats 7 have a pressure chamber 12 filled partly with air or another gaseous medium under pressure and partly with water or another liquid and have an opening in the lower part connected to a valve 10 responsive to the external water pressure. The valve 10 comprises a piston 23 positively acted on by compressed air in line 11 and by the external water pressure such that the pipe section with float at a depth determined by the pressure in the line 11. Thus excess pressure in line 11 urges piston 23 downwards allowing water under pressure from conduit 9 to be admitted to the float 7 via a duct in piston 23. With excess external pressure the piston 23 is urged upward to allow fluid to be expelled from float 7 by the pressurized gaseous medium therein. In another embodiment (Fig. 1, not shown) the pipe section 1 is provided with weights along its length at regions suspended from vessels (3) by means of cables (19) the vessels (3) being provided with elements (6) which compensate for the movements of the vessel due to waves. During the laying of the pipe section it is guided in a transverse horizontal position by means of additional vessels which support the pipeline by means of cables. These vessels may be those already supporting the pipe section as in the embodiment of Fig. 1, or vessels which connect to the pipe section by means of floatable cable pulley units (15) releasably mounted on floats 7 with explosion bolts (16). The pipe section may be guided transversely by further surface vessels (not shown).
GB4316772A 1972-09-18 1972-09-18 Method of constructing a long pipeline on the floor of a body of water Expired GB1434357A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4316772A GB1434357A (en) 1972-09-18 1972-09-18 Method of constructing a long pipeline on the floor of a body of water
NL7312728A NL7312728A (en) 1972-09-18 1973-09-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4316772A GB1434357A (en) 1972-09-18 1972-09-18 Method of constructing a long pipeline on the floor of a body of water

Publications (1)

Publication Number Publication Date
GB1434357A true GB1434357A (en) 1976-05-05

Family

ID=10427595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4316772A Expired GB1434357A (en) 1972-09-18 1972-09-18 Method of constructing a long pipeline on the floor of a body of water

Country Status (2)

Country Link
GB (1) GB1434357A (en)
NL (1) NL7312728A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096705A (en) * 1976-01-27 1978-06-27 Compagnie Generale Pour Les Developpements Operationnels Des Richesses Sous-Marines "C.G. Doris" Laying of underwater pipelines
JPS53135115A (en) * 1977-04-28 1978-11-25 Nippon Kokan Kk Device for applying buoyancy
US4135844A (en) * 1977-01-05 1979-01-23 Compagnie Generale pour les Developpments Operationnels des Richesses Sous-Marines "C.G. DORIS" Laying of underwater pipelines
US4183697A (en) * 1976-01-27 1980-01-15 Compagnie Generale Pour Les Developpements Operationnels Des Richesses Sous-Marines "C.G. Doris" Laying of underwater pipelines
US4271550A (en) * 1977-05-26 1981-06-09 Institut Francais Du Petrole Method for submerging an equipment of negative buoyancy
WO1990004538A1 (en) * 1988-10-24 1990-05-03 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Deployment of mines and other objects at sea
EP1099893A1 (en) * 1999-11-11 2001-05-16 Karl-Heinz Krah GmbH Werkzeug- und Vorrichtungsbau Method for laying underwater pipelines
WO2006045357A1 (en) * 2004-10-25 2006-05-04 Saipem S.P.A. Process, system and equipment for the towing of underwater pipelines
GB2435316A (en) * 2006-02-10 2007-08-22 Jean-Baptiste Pose Method and apparatus for offshore pipe installation
CN100498030C (en) * 2006-03-30 2009-06-10 中船第九设计研究院 Multi-segment water supply and sewerage pipeline settling construction process
WO2020092182A1 (en) 2018-10-29 2020-05-07 Subsea 7 (Us) Llc Installation of subsea pipelines
WO2021219998A1 (en) 2020-04-29 2021-11-04 Subsea 7 Limited Pulling structures into water

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096705A (en) * 1976-01-27 1978-06-27 Compagnie Generale Pour Les Developpements Operationnels Des Richesses Sous-Marines "C.G. Doris" Laying of underwater pipelines
US4183697A (en) * 1976-01-27 1980-01-15 Compagnie Generale Pour Les Developpements Operationnels Des Richesses Sous-Marines "C.G. Doris" Laying of underwater pipelines
US4135844A (en) * 1977-01-05 1979-01-23 Compagnie Generale pour les Developpments Operationnels des Richesses Sous-Marines "C.G. DORIS" Laying of underwater pipelines
JPS53135115A (en) * 1977-04-28 1978-11-25 Nippon Kokan Kk Device for applying buoyancy
JPS594588B2 (en) * 1977-04-28 1984-01-30 シバタ工業株式会社 Buoyancy imparting device and method
US4271550A (en) * 1977-05-26 1981-06-09 Institut Francais Du Petrole Method for submerging an equipment of negative buoyancy
WO1990004538A1 (en) * 1988-10-24 1990-05-03 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Deployment of mines and other objects at sea
GB2243582A (en) * 1988-10-24 1991-11-06 Secr Defence Deployment of mines and other objects at sea
GB2243582B (en) * 1988-10-24 1992-09-16 Secr Defence Deployment of mines and other objects at sea
US5163379A (en) * 1988-10-24 1992-11-17 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Deployment of mines and other objects at sea
EP1099893A1 (en) * 1999-11-11 2001-05-16 Karl-Heinz Krah GmbH Werkzeug- und Vorrichtungsbau Method for laying underwater pipelines
WO2006045357A1 (en) * 2004-10-25 2006-05-04 Saipem S.P.A. Process, system and equipment for the towing of underwater pipelines
EA010342B1 (en) * 2004-10-25 2008-08-29 САЙПЕМ С.п.А. Process, system and equipment for the towing of underwater pipelines
US7985036B2 (en) 2004-10-25 2011-07-26 Saipem S.P.A. Process, system and equipment for the towing of underwater pipelines
GB2435316A (en) * 2006-02-10 2007-08-22 Jean-Baptiste Pose Method and apparatus for offshore pipe installation
CN100498030C (en) * 2006-03-30 2009-06-10 中船第九设计研究院 Multi-segment water supply and sewerage pipeline settling construction process
WO2020092182A1 (en) 2018-10-29 2020-05-07 Subsea 7 (Us) Llc Installation of subsea pipelines
GB2578475A (en) * 2018-10-29 2020-05-13 Subsea 7 Us Llc Installation of subsea pipelines
GB2578475B (en) * 2018-10-29 2021-04-21 Subsea 7 Us Llc Installing subsea pipelines using buoyancy and towing
US11796086B2 (en) 2018-10-29 2023-10-24 Subsea 7(US) LLC Installation of subsea pipelines
WO2021219998A1 (en) 2020-04-29 2021-11-04 Subsea 7 Limited Pulling structures into water
GB2594707A (en) * 2020-04-29 2021-11-10 Subsea 7 Ltd Pulling Structures into Water
GB2594707B (en) * 2020-04-29 2022-10-05 Subsea 7 Ltd Pulling structures into water

Also Published As

Publication number Publication date
NL7312728A (en) 1974-03-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee