FR2288264A1 - Pressurising a pipeline during laying on seabed, etc. - to compensate for hydrostatic external pressure and pipe laying compressive stresses - Google Patents

Pressurising a pipeline during laying on seabed, etc. - to compensate for hydrostatic external pressure and pipe laying compressive stresses

Info

Publication number
FR2288264A1
FR2288264A1 FR7434568A FR7434568A FR2288264A1 FR 2288264 A1 FR2288264 A1 FR 2288264A1 FR 7434568 A FR7434568 A FR 7434568A FR 7434568 A FR7434568 A FR 7434568A FR 2288264 A1 FR2288264 A1 FR 2288264A1
Authority
FR
France
Prior art keywords
chamber
laying
pipeline
pressure
compressive stresses
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
FR7434568A
Other languages
French (fr)
Other versions
FR2288264B1 (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.)
EAGLETON HAROLD
Original Assignee
EAGLETON HAROLD
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 EAGLETON HAROLD filed Critical EAGLETON HAROLD
Priority to FR7434568A priority Critical patent/FR2288264A1/en
Publication of FR2288264A1 publication Critical patent/FR2288264A1/en
Application granted granted Critical
Publication of FR2288264B1 publication Critical patent/FR2288264B1/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
    • F16L1/163—Laying or reclaiming pipes on or under water on the bottom by varying the apparent weight of the pipe during the laying operation

Abstract

Interior of a pipeline is placed under pressure by isolating in it a chamber selectively closed by sealed joints, introducing a fluid under pressure into this chamber to establish a predetermined pressure, enlarging the chamber at the same time as the pipeline is extended for the whole pipe construction period and maintaining the pressure inside the chamber at a predetermined level during the enlargement of the chamber continuing this for the whole pipeline construction period. Process provides a convenient way of preventing crushing of pipelines under high hydrostatic pressure e.g. when laying large diameter pipelines in deep water, as well as compensating for compressive stresses arising in the suspended part of the pipeline during laying.
FR7434568A 1974-10-15 1974-10-15 Pressurising a pipeline during laying on seabed, etc. - to compensate for hydrostatic external pressure and pipe laying compressive stresses Granted FR2288264A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7434568A FR2288264A1 (en) 1974-10-15 1974-10-15 Pressurising a pipeline during laying on seabed, etc. - to compensate for hydrostatic external pressure and pipe laying compressive stresses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7434568A FR2288264A1 (en) 1974-10-15 1974-10-15 Pressurising a pipeline during laying on seabed, etc. - to compensate for hydrostatic external pressure and pipe laying compressive stresses

Publications (2)

Publication Number Publication Date
FR2288264A1 true FR2288264A1 (en) 1976-05-14
FR2288264B1 FR2288264B1 (en) 1980-08-14

Family

ID=9144099

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7434568A Granted FR2288264A1 (en) 1974-10-15 1974-10-15 Pressurising a pipeline during laying on seabed, etc. - to compensate for hydrostatic external pressure and pipe laying compressive stresses

Country Status (1)

Country Link
FR (1) FR2288264A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386659A (en) * 1980-02-14 1983-06-07 Constructors John Brown Limited Guides for forming connections

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386659A (en) * 1980-02-14 1983-06-07 Constructors John Brown Limited Guides for forming connections

Also Published As

Publication number Publication date
FR2288264B1 (en) 1980-08-14

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Legal Events

Date Code Title Description
ST Notification of lapse