FR2355231A1 - METHOD AND DEVICE FOR LAYING PIPELINES AT SEA - Google Patents

METHOD AND DEVICE FOR LAYING PIPELINES AT SEA

Info

Publication number
FR2355231A1
FR2355231A1 FR7718380A FR7718380A FR2355231A1 FR 2355231 A1 FR2355231 A1 FR 2355231A1 FR 7718380 A FR7718380 A FR 7718380A FR 7718380 A FR7718380 A FR 7718380A FR 2355231 A1 FR2355231 A1 FR 2355231A1
Authority
FR
France
Prior art keywords
depth
sea
laying
pipeline
profile
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.)
Withdrawn
Application number
FR7718380A
Other languages
French (fr)
Inventor
Finn Christian Michelsen
Willem Jan Timmermans
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.)
Viking Jersey Equipment Ltd
Original Assignee
Viking Jersey Equipment Ltd
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 Viking Jersey Equipment Ltd filed Critical Viking Jersey Equipment Ltd
Publication of FR2355231A1 publication Critical patent/FR2355231A1/en
Withdrawn legal-status Critical Current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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/02—Control of position or course in two dimensions
    • G05D1/0206—Control of position or course in two dimensions specially adapted to water vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Pipeline Systems (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un procédé pour la pose de pipelines en mer. Selon ce procédé, on contrôle au moins l'un des paramètres suivants de contrainte du pipeline : courbure, moment de flexion, force de cisaillement et force axiale. On mesure la profondeur du fond sous le navire poseur et on met cette valeur de profondeur en mémoire en fonction de la distance parcourue par le navire sur son trajet. On estime ensuite la profondeur et le profil du fond au point de contact du pipeline en se basant sur les profondeurs mises en mémoire et on utilise la profondeur et le profil au point de contact pour calculer les paramètres de contrainte existant dans la partie suspendue du pipeline. Les paramètres calculés sont affichés en vue du contrôle Application à la pose d'oléoducs en mer.The invention relates to a method for laying pipelines at sea. The method controls at least one of the following pipeline stress parameters: curvature, bending moment, shear force and axial force. The depth of the bottom is measured under the laying vessel and this depth value is stored in memory as a function of the distance traveled by the vessel on its path. The depth and profile of the bottom at the point of pipeline contact is then estimated based on the stored depths and the depth and profile at the point of contact is used to calculate the stress parameters existing in the suspended portion of the pipeline. . The calculated parameters are displayed for the control Application to the laying of oil pipelines at sea.

FR7718380A 1976-06-15 1977-06-15 METHOD AND DEVICE FOR LAYING PIPELINES AT SEA Withdrawn FR2355231A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24770/76A GB1583552A (en) 1976-06-15 1976-06-15 Offshore pipe laying

Publications (1)

Publication Number Publication Date
FR2355231A1 true FR2355231A1 (en) 1978-01-13

Family

ID=10216989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718380A Withdrawn FR2355231A1 (en) 1976-06-15 1977-06-15 METHOD AND DEVICE FOR LAYING PIPELINES AT SEA

Country Status (13)

Country Link
JP (1) JPS5326088A (en)
AU (1) AU2607177A (en)
BR (1) BR7703854A (en)
DE (1) DE2726781A1 (en)
DK (1) DK263177A (en)
ES (2) ES459752A1 (en)
FR (1) FR2355231A1 (en)
GB (1) GB1583552A (en)
IT (1) IT1115767B (en)
NL (1) NL7706553A (en)
NO (1) NO772084L (en)
SE (1) SE7706857L (en)
ZA (1) ZA773569B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1089087B (en) 1977-12-27 1985-06-10 Saipem Spa SEMI-SUBMERSIBLE PIPELINE SHIP EQUIPPED FOR LAYING PIPES ON DEEP SEA BOTTOMS AND RELATED METHOD OF USE
CN100384600C (en) * 2006-03-31 2008-04-30 江苏江佳机械有限公司 Timber selecting and chopping method and selection chopping saw therefor
NO3074325T3 (en) 2013-12-23 2018-02-24

Also Published As

Publication number Publication date
AU2607177A (en) 1978-12-21
ZA773569B (en) 1979-01-31
DK263177A (en) 1977-12-16
JPS5326088A (en) 1978-03-10
SE7706857L (en) 1978-02-03
BR7703854A (en) 1978-02-21
DE2726781A1 (en) 1977-12-29
GB1583552A (en) 1981-01-28
NL7706553A (en) 1977-12-19
IT1115767B (en) 1986-02-03
ES470232A1 (en) 1979-10-16
ES459752A1 (en) 1978-11-16
NO772084L (en) 1977-12-16

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Legal Events

Date Code Title Description
ST Notification of lapse