FR2375024A1 - Composite foam pipeline floats with prefabricated core - contg. thermoplastic spheres, for robust floats of low apparent density - Google Patents

Composite foam pipeline floats with prefabricated core - contg. thermoplastic spheres, for robust floats of low apparent density

Info

Publication number
FR2375024A1
FR2375024A1 FR7638825A FR7638825A FR2375024A1 FR 2375024 A1 FR2375024 A1 FR 2375024A1 FR 7638825 A FR7638825 A FR 7638825A FR 7638825 A FR7638825 A FR 7638825A FR 2375024 A1 FR2375024 A1 FR 2375024A1
Authority
FR
France
Prior art keywords
floats
robust
contg
apparent density
prefabricated
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
FR7638825A
Other languages
French (fr)
Other versions
FR2375024B1 (en
Inventor
Jean-Luc Natoli
Michel Amourous
Robert Maleq
Bernard Demanes
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Priority to FR7638825A priority Critical patent/FR2375024A1/en
Publication of FR2375024A1 publication Critical patent/FR2375024A1/en
Application granted granted Critical
Publication of FR2375024B1 publication Critical patent/FR2375024B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B29C70/66—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler comprising hollow constituents, e.g. syntactic foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/13—Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/012—Risers with buoyancy elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • B29K2105/165—Hollow fillers, e.g. microballoons or expanded particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/20—Inserts
    • B29K2105/206—Meshes, lattices or nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/706—Buoys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Laminated Bodies (AREA)

Abstract

Composite floats for deep sea use comprise a core of prefabricated hollow bodies held together by solvent welding: and/or a binder resin and/or a mesh cage and a thick sheath made of homogeneous impermeable foam. The sheath is moulded round a prefabricated core supported in the centre of the float mould. Suitable for mfg. split tubular floats for supporting pipelines during shallow or deep sea laying, requiring floats which are robust, corrosion resistant and buoyant at depth. The structure provides the buoyancy of large hollow enclosures of controlled size and distribution without risk of surface weakness.
FR7638825A 1976-12-23 1976-12-23 Composite foam pipeline floats with prefabricated core - contg. thermoplastic spheres, for robust floats of low apparent density Granted FR2375024A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7638825A FR2375024A1 (en) 1976-12-23 1976-12-23 Composite foam pipeline floats with prefabricated core - contg. thermoplastic spheres, for robust floats of low apparent density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7638825A FR2375024A1 (en) 1976-12-23 1976-12-23 Composite foam pipeline floats with prefabricated core - contg. thermoplastic spheres, for robust floats of low apparent density

Publications (2)

Publication Number Publication Date
FR2375024A1 true FR2375024A1 (en) 1978-07-21
FR2375024B1 FR2375024B1 (en) 1979-04-13

Family

ID=9181444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7638825A Granted FR2375024A1 (en) 1976-12-23 1976-12-23 Composite foam pipeline floats with prefabricated core - contg. thermoplastic spheres, for robust floats of low apparent density

Country Status (1)

Country Link
FR (1) FR2375024A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338955A1 (en) * 1988-04-22 1989-10-25 TECHNOLOGIES SPECIALES INGENIERIE - T.S.I. Société à Responsabilité Limitée dite: Method of making a deformable float, and float obtained by said method for use to reduce the weight of a submerged heavy body
GB2507077A (en) * 2012-10-18 2014-04-23 Liftup Akva As Aquaculture Raft Adapted to Receive a Y-Junction
US10167061B2 (en) 2015-02-09 2019-01-01 Saipem S.P.A. Buoyancy device for very deep water and production method thereof
GB2582576A (en) * 2019-03-25 2020-09-30 Acergy France SAS Pressure-resistant buoys

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338955A1 (en) * 1988-04-22 1989-10-25 TECHNOLOGIES SPECIALES INGENIERIE - T.S.I. Société à Responsabilité Limitée dite: Method of making a deformable float, and float obtained by said method for use to reduce the weight of a submerged heavy body
FR2630395A1 (en) * 1988-04-22 1989-10-27 Technologies Speciales Ingenie METHOD FOR MANUFACTURING A DEFORMABLE FLOAT AND FLOATER OBTAINED BY SAID METHOD FOR LIGHTENING A BODY WEIGHING UNDERWATER
GB2507077A (en) * 2012-10-18 2014-04-23 Liftup Akva As Aquaculture Raft Adapted to Receive a Y-Junction
GB2507077B (en) * 2012-10-18 2016-09-21 Liftup Akva As Raft for Aquaculture Sea Cage
US10167061B2 (en) 2015-02-09 2019-01-01 Saipem S.P.A. Buoyancy device for very deep water and production method thereof
GB2582576A (en) * 2019-03-25 2020-09-30 Acergy France SAS Pressure-resistant buoys
WO2020194064A2 (en) 2019-03-25 2020-10-01 Acergy France SAS Pressure-resistant buoys
GB2582576B (en) * 2019-03-25 2021-09-29 Acergy France SAS Pressure-resistant buoys

Also Published As

Publication number Publication date
FR2375024B1 (en) 1979-04-13

Similar Documents

Publication Publication Date Title
MY110621A (en) Deep water platform with buoyant flexible piles
DE3364421D1 (en) Fairing for pipes
GB1203355A (en) Flexible underwater riser
ES446622A1 (en) Laying of submarine pipes
ES459268A1 (en) Method of fabrication of offshore structures and offshore structures made according to the method
IE39017B1 (en) Method and apparatus for transporting and launching an offshore tower
US3568456A (en) Method for manufacturing long pipe lines on the bottom of a deep water
FR2375024A1 (en) Composite foam pipeline floats with prefabricated core - contg. thermoplastic spheres, for robust floats of low apparent density
ES8203749A1 (en) Anchoring apparatus for a ship used in the production of hydrocarbons
ES557165A0 (en) METHOD FOR MANUFACTURING UNDERWATER CABLES
CN214425270U (en) Underwater floating block of flexible pipe cable
JPS6124238B2 (en)
FR2260051A1 (en) Method of placing undersea piping - uses collapsible fluid filled tube gives buoyancy to prevent kinking of piping
AT333084B (en) PIPE-LAYING VESSEL AND METHOD OF LAYING PIPELINE IN WATERS WITH CHANGING WATER DEPTHS AND DIFFERENT WATER LEVELS IN WATERDOM AND NEAR THE COAST USING A FLOATING SHIP
佐藤泰哲 et al. Submerged Grove in Lake Onogawa.
ES464132A1 (en) Vessel having two tubular float elements
NL7805984A (en) Transporting prefabricated pipeline sections and laying on the sea-bed - using submerged carrying pipe with adjustable ballast to suspend during transport and lower pipeline section
US2791979A (en) Underwater cable
CN214151081U (en) Marine controllable seismic source position control device
KR840008724A (en) How to tow the submarine cable end to the beach
CN218916525U (en) Hydrophone
ES459732A1 (en) Offshore pipe laying
GB2110335B (en) Buoyant scaffold pole
JP7112150B1 (en) floating artificial island
SU636445A1 (en) Device for ballasting underwater pipeline

Legal Events

Date Code Title Description
ST Notification of lapse