GB1163508A - Method of horizontally or substantially horizontally laying a pipeline or other object in a trench in a formation underlying a body of water - Google Patents

Method of horizontally or substantially horizontally laying a pipeline or other object in a trench in a formation underlying a body of water

Info

Publication number
GB1163508A
GB1163508A GB2522968A GB2522968A GB1163508A GB 1163508 A GB1163508 A GB 1163508A GB 2522968 A GB2522968 A GB 2522968A GB 2522968 A GB2522968 A GB 2522968A GB 1163508 A GB1163508 A GB 1163508A
Authority
GB
United Kingdom
Prior art keywords
trench
gel
pipeline
liquid
water
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
GB2522968A
Inventor
Lodewijk Johannes Sc Jongbloed
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB2522968A priority Critical patent/GB1163508A/en
Priority to NL6901482A priority patent/NL6901482A/xx
Publication of GB1163508A publication Critical patent/GB1163508A/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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/12—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with equipment for back-filling trenches or ditches
    • 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
    • F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
    • F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

1,163,508. Laying under-water pipe lines. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 27 May, 1968, No. 25229/68. Heading F2P. [Also in Division H2] A method of horizontally, or substantially horizontally, laying a pipe line in a trench in a formation underlying a body of water comprises the steps of making the trench in the formation by removing part of the formation, passing into the trench a liquid that will sink in the trench and fill the trench either simultaneously with, or separately from, the trench forming operation, and laying the pipe line in the said liquid in the trench in a horizontal, or substantially horizontal, position. The liquid may be viscous and have plastering and gel properties and may include carboxy methyl cellulose. The liquid may also be loaded with sand. In one example a pipe line, made by welding together pipe sections on board a ship, is gradually slipped on to the bottom of the sea and a yoke, carrying a number of nozzles supplied with water under pressure, is placed, straddle-legged, over the pipeline and drawn along it, the sea-bottom underlying the pipe being removed by the jet action of the nozzles which are directed downwardly. The rear end of the yoke carries outlets for the trench filling liquid comprising a gel made of 6% by weight bentonite and water, which is pumped into the trench. As the yoke proceeds along the pipeline the latter is gradually lowered into the gel-filled trench. The bentonite has gel qualities which assist in preventing the collapse of the trench side walls and plastering qualities which help to seal the surfaces of the trench. The gel liquid, which may incorporate gel breaking agents, gradually breaks down after a time so that the trench collapses over the pipeline. If desired, the pipeline can be buried deeper by running the yoke for a second time, and the gel may eventually be removed by pumping action. In another method, e.g. for laying a pipeline across a river, the pipeline is floated into position and then lowered into a previously dredged trench filled with gelled liquid. Suitable filling liquids are water with guar gum, floc gel, and polymers, e.g. polyacril compounds, the liquids if necessary being suitably loaded with grains, e.g. sand.
GB2522968A 1968-05-27 1968-05-27 Method of horizontally or substantially horizontally laying a pipeline or other object in a trench in a formation underlying a body of water Expired GB1163508A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2522968A GB1163508A (en) 1968-05-27 1968-05-27 Method of horizontally or substantially horizontally laying a pipeline or other object in a trench in a formation underlying a body of water
NL6901482A NL6901482A (en) 1968-05-27 1969-01-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2522968A GB1163508A (en) 1968-05-27 1968-05-27 Method of horizontally or substantially horizontally laying a pipeline or other object in a trench in a formation underlying a body of water

Publications (1)

Publication Number Publication Date
GB1163508A true GB1163508A (en) 1969-09-10

Family

ID=10224302

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2522968A Expired GB1163508A (en) 1968-05-27 1968-05-27 Method of horizontally or substantially horizontally laying a pipeline or other object in a trench in a formation underlying a body of water

Country Status (2)

Country Link
GB (1) GB1163508A (en)
NL (1) NL6901482A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2762375A1 (en) * 1997-04-22 1998-10-23 Forsheda Ab STRUCTURE IN A DARK PIPING
GB2473471A (en) * 2009-09-11 2011-03-16 Technip France Method of laying a pipeline in a seabed

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8703137A (en) * 1987-12-24 1989-07-17 Hollandsche Betongroep Nv METHOD AND APPARATUS FOR DEPOSITING UNDERWATER DEPOSIT, IN PARTICULAR COVERING A PIPE OR THE LIKE.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2762375A1 (en) * 1997-04-22 1998-10-23 Forsheda Ab STRUCTURE IN A DARK PIPING
GB2473471A (en) * 2009-09-11 2011-03-16 Technip France Method of laying a pipeline in a seabed
WO2011030124A1 (en) 2009-09-11 2011-03-17 Technip France Method of laying a pipeline in a seabed
GB2473471B (en) * 2009-09-11 2011-11-09 Technip France Method of laying a pipeline in a seabed

Also Published As

Publication number Publication date
NL6901482A (en) 1969-04-25

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees