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GB2022662A - Methods of and apparatus for forming offshore structures. - Google Patents

Methods of and apparatus for forming offshore structures.

Info

Publication number
GB2022662A
GB2022662A GB7922672A GB7922672A GB2022662A GB 2022662 A GB2022662 A GB 2022662A GB 7922672 A GB7922672 A GB 7922672A GB 7922672 A GB7922672 A GB 7922672A GB 2022662 A GB2022662 A GB 2022662A
Authority
GB
United Kingdom
Prior art keywords
deck
substructure
vessel
methods
forming
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
GB7922672A
Other versions
GB2022662B (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.)
Brown and Root Inc
Original Assignee
Brown and Root Inc
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 Brown and Root Inc filed Critical Brown and Root Inc
Priority to GB7922672A priority Critical patent/GB2022662B/en
Publication of GB2022662A publication Critical patent/GB2022662A/en
Application granted granted Critical
Publication of GB2022662B publication Critical patent/GB2022662B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • E02B17/024—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform shock absorbing means for the supporting construction
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/027—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0039—Methods for placing the offshore structure
    • E02B2017/0047—Methods for placing the offshore structure using a barge

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

A substructure 1 is mounted on the sea bed and an integrated deck 12 is supported on a vessel 23 and floated out to the substructure. The vessel 23 is manoeuvred to position the deck 12 over the substructure and the deck is then lowered firstly at a relatively slow transfer rate to transfer the load of the deck to the substructure and then at a second, relatively more rapid rate thereby reducing tendencies for wave action- induced forces and movements to cause damage to the integrated deck and vessel. <IMAGE>
GB7922672A 1978-04-03 1979-06-29 Methods of and apparatus for forming offshore structures Expired GB2022662B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7922672A GB2022662B (en) 1978-04-03 1979-06-29 Methods of and apparatus for forming offshore structures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1300078 1978-04-03
GB7922672A GB2022662B (en) 1978-04-03 1979-06-29 Methods of and apparatus for forming offshore structures

Publications (2)

Publication Number Publication Date
GB2022662A true GB2022662A (en) 1979-12-19
GB2022662B GB2022662B (en) 1982-04-21

Family

ID=26249408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7922672A Expired GB2022662B (en) 1978-04-03 1979-06-29 Methods of and apparatus for forming offshore structures

Country Status (1)

Country Link
GB (1) GB2022662B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176827A (en) * 1985-06-19 1987-01-07 Saipem Spa Installation of the superstructure of an offshore platform
US5403124A (en) * 1993-07-26 1995-04-04 Mcdermott International, Inc. Semisubmersible vessel for transporting and installing heavy deck sections offshore using quick drop ballast system
US6027287A (en) * 1996-07-26 2000-02-22 Saipem S.P.A. System and procedure to transfer a load from a cargo barge to a substructure
WO2010134881A1 (en) * 2009-05-19 2010-11-25 Gva Consultants Ab Method for installing a topside module on an offshore support structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176827A (en) * 1985-06-19 1987-01-07 Saipem Spa Installation of the superstructure of an offshore platform
GB2176827B (en) * 1985-06-19 1989-09-06 Saipem Spa Installation of the superstructure of an offshore platform
US5403124A (en) * 1993-07-26 1995-04-04 Mcdermott International, Inc. Semisubmersible vessel for transporting and installing heavy deck sections offshore using quick drop ballast system
US6027287A (en) * 1996-07-26 2000-02-22 Saipem S.P.A. System and procedure to transfer a load from a cargo barge to a substructure
WO2010134881A1 (en) * 2009-05-19 2010-11-25 Gva Consultants Ab Method for installing a topside module on an offshore support structure
US8398338B2 (en) 2009-05-19 2013-03-19 Gva Consultants Ab Method for installing a topside module on an offshore support structure

Also Published As

Publication number Publication date
GB2022662B (en) 1982-04-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee