FR2455234A2 - Laying pipelines in deep water - with precise control of lengthening along prescribed line, curved and guided by submerged structure supported vertically from ship - Google Patents

Laying pipelines in deep water - with precise control of lengthening along prescribed line, curved and guided by submerged structure supported vertically from ship

Info

Publication number
FR2455234A2
FR2455234A2 FR7910747A FR7910747A FR2455234A2 FR 2455234 A2 FR2455234 A2 FR 2455234A2 FR 7910747 A FR7910747 A FR 7910747A FR 7910747 A FR7910747 A FR 7910747A FR 2455234 A2 FR2455234 A2 FR 2455234A2
Authority
FR
France
Prior art keywords
pipeline
ship
laying
submerged
submerged structure
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.)
Granted
Application number
FR7910747A
Other languages
French (fr)
Other versions
FR2455234B2 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7910747A priority Critical patent/FR2455234A2/en
Publication of FR2455234A2 publication Critical patent/FR2455234A2/en
Application granted granted Critical
Publication of FR2455234B2 publication Critical patent/FR2455234B2/fr
Granted 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
    • F16L1/18—Laying or reclaiming pipes on or under water on the bottom the pipes being S- or J-shaped and under tension during laying
    • F16L1/19—Laying or reclaiming pipes on or under water on the bottom the pipes being S- or J-shaped and under tension during laying the pipes being J-shaped
    • 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
    • F16L1/166—Reclaiming pipes

Abstract

A method of controlling precisely the lengthening of a pipeline according to the desired line during its laying on the sea-bed in deep water comprises curving and guiding the pipelines near the sea bed by a submerged piloting structure. The pipeline descends from the surface to this structure practically vertically or at very small angle to the vertical, and the structure remains some tens of metres from the sea bed all along the laying of the pipeline. A method of abandoning the pipeline e.g. when meteorological conditions worsen consists of laying the submerged structure on the sea bed weighted by heavy masses, the vertical branch being conserved, its end being closed by a lifting head. A float fixed on the pipeline ensures an ascending traction on the vertical part of the pipeline. The process improves the process described in the principal patent 7902256 of 30.1.79, in that the pipeline descends vertically from the ship to the submerged structure, the submerged structure is directly supported by the ship in which the pipeline elements are assembled and the pipeline is not lightened by additional floats.
FR7910747A 1979-04-27 1979-04-27 Laying pipelines in deep water - with precise control of lengthening along prescribed line, curved and guided by submerged structure supported vertically from ship Granted FR2455234A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7910747A FR2455234A2 (en) 1979-04-27 1979-04-27 Laying pipelines in deep water - with precise control of lengthening along prescribed line, curved and guided by submerged structure supported vertically from ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7910747A FR2455234A2 (en) 1979-04-27 1979-04-27 Laying pipelines in deep water - with precise control of lengthening along prescribed line, curved and guided by submerged structure supported vertically from ship

Publications (2)

Publication Number Publication Date
FR2455234A2 true FR2455234A2 (en) 1980-11-21
FR2455234B2 FR2455234B2 (en) 1983-07-08

Family

ID=9224835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7910747A Granted FR2455234A2 (en) 1979-04-27 1979-04-27 Laying pipelines in deep water - with precise control of lengthening along prescribed line, curved and guided by submerged structure supported vertically from ship

Country Status (1)

Country Link
FR (1) FR2455234A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054332A1 (en) * 1980-12-16 1982-06-23 Gusto Engineering B.V. Method and apparatus for lowering and positioning a pipe line onto the bottom of a deep water
WO2012120381A3 (en) * 2011-03-07 2012-11-29 Technip France Abandonment and recovery system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054332A1 (en) * 1980-12-16 1982-06-23 Gusto Engineering B.V. Method and apparatus for lowering and positioning a pipe line onto the bottom of a deep water
WO2012120381A3 (en) * 2011-03-07 2012-11-29 Technip France Abandonment and recovery system
AP3851A (en) * 2011-03-07 2016-09-30 Technip France Abandonment and recovery system
US9671042B2 (en) 2011-03-07 2017-06-06 Technip France Abandonment and recovery system

Also Published As

Publication number Publication date
FR2455234B2 (en) 1983-07-08

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