NO984239L - Procedure for mounting a floating offshore structure - Google Patents

Procedure for mounting a floating offshore structure

Info

Publication number
NO984239L
NO984239L NO984239A NO984239A NO984239L NO 984239 L NO984239 L NO 984239L NO 984239 A NO984239 A NO 984239A NO 984239 A NO984239 A NO 984239A NO 984239 L NO984239 L NO 984239L
Authority
NO
Norway
Prior art keywords
component
hull
submerged
spar hull
spar
Prior art date
Application number
NO984239A
Other languages
Norwegian (no)
Other versions
NO984239D0 (en
Inventor
Lyle David Finn
Iii Edward E Horton
Anil Kumar Sablok
Luc Gaetan Chabot
Original Assignee
Deep Oil Technology Inc
Spars International 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 Deep Oil Technology Inc, Spars International Inc filed Critical Deep Oil Technology Inc
Publication of NO984239D0 publication Critical patent/NO984239D0/en
Publication of NO984239L publication Critical patent/NO984239L/en

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
    • E02B17/027—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B77/00—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms
    • 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
    • E02B2017/0039—Methods for placing the offshore structure
    • E02B2017/0043—Placing the offshore structure on a pre-installed foundation structure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)
  • Wind Motors (AREA)
  • Revetment (AREA)
  • Foundations (AREA)

Abstract

En fremgangsmåte angår sammenføring av overbygningen på en flytende offshore konstruksjon som f.eks. et Spar skrog, sammenføyning av komponentene for et Spar skrog (10) og en kombinasjon eller varianter av disse prosedyrer. Generelt sett utføres installasjonen som følger: På stedet der sammenføring skal finne sted, blir Spar skrog- komponenten (10) reist opp, utstyrt med styringer og anordninger som er nødvendig for å utføre en styrt nedsenkning av Spar skrogkomponenten (10) og den blir nedsenket til en på forhånd bestemt dybde under vannflaten slik at det fremkommer et nullvannplan- område. Den andre komponent (26) som skal føres sammen med toppen av Spar skroget (10) bringes til å flyte over den neddykkede Spar skrogkomponent (10). Dypgåendet for den neddykkede Spar skrogkomponent (10) reduseres inntil de to komponenter (10,26) kommer i fullt anlegg.One method concerns the joining of the superstructure to a floating offshore structure, e.g. a Save hull, joining the components of a Save hull (10) and a combination or variants of these procedures. In general, the installation is carried out as follows: At the point where merging is to take place, the Spar hull component (10) is raised, equipped with controls and devices necessary to perform a controlled immersion of the Spar hull component (10) and it is submerged. to a predetermined depth below the water surface so that a zero-water plane area appears. The second component (26) to be joined with the top of the Spar hull (10) is caused to float over the submerged Spar hull component (10). The draft of the submerged Spar hull component (10) is reduced until the two components (10,26) come into full operation.

NO984239A 1997-09-16 1998-09-14 Procedure for mounting a floating offshore structure NO984239L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93146197A 1997-09-16 1997-09-16

Publications (2)

Publication Number Publication Date
NO984239D0 NO984239D0 (en) 1998-09-14
NO984239L true NO984239L (en) 1999-03-17

Family

ID=25460807

Family Applications (1)

Application Number Title Priority Date Filing Date
NO984239A NO984239L (en) 1997-09-16 1998-09-14 Procedure for mounting a floating offshore structure

Country Status (6)

Country Link
EP (1) EP0908382A3 (en)
AU (1) AU8517998A (en)
BR (1) BR9803458A (en)
FI (1) FI981967A0 (en)
NO (1) NO984239L (en)
OA (1) OA10876A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6135673A (en) * 1998-06-19 2000-10-24 Deep Oil Technology, Incorporated Method/apparatus for assembling a floating offshore structure
US6565286B2 (en) * 2001-08-10 2003-05-20 Spartec, Inc. Method for fabricating and assembling a floating offshore structure
KR101806430B1 (en) 2010-01-21 2017-12-07 더 아벨 파운데이션, 인크. Ocean thermal energy conversion power plant
US9086057B2 (en) 2010-01-21 2015-07-21 The Abell Foundation, Inc. Ocean thermal energy conversion cold water pipe
US8899043B2 (en) 2010-01-21 2014-12-02 The Abell Foundation, Inc. Ocean thermal energy conversion plant
US9151279B2 (en) 2011-08-15 2015-10-06 The Abell Foundation, Inc. Ocean thermal energy conversion power plant cold water pipe connection
EP3591327B1 (en) 2012-10-16 2021-12-08 The Abell Foundation Inc. Heat exchanger including manifold
GB2538275B (en) 2015-05-13 2018-01-31 Crondall Energy Consultants Ltd Floating production unit and method of installing a floating production unit
CN114313127B (en) * 2022-01-13 2024-03-26 东北石油大学 Assembled FRP concrete combined guy cable tower type damping platform group and construction method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3572041A (en) * 1968-09-18 1971-03-23 Shell Oil Co Spar-type floating production facility
NO151209C (en) * 1976-05-20 1985-02-27 Doris Dev Richesse Sous Marine FOREIGN BUILDINGS AND PROCEDURE FOR ITS MANUFACTURING
FR2400086A1 (en) * 1977-08-08 1979-03-09 Sea Tank Co Mounting of maritime platform on hollow base with legs - includes submerging base using winches for elevating once platform is floated over
DK46186A (en) * 1985-02-01 1986-08-02 Conoco Uk Ltd PROCEDURE AND EQUIPMENT FOR THE ASSEMBLY OF A OFFSHORE PLATFORM COVER AND PARTS
US4702321A (en) 1985-09-20 1987-10-27 Horton Edward E Drilling, production and oil storage caisson for deep water
NO872009L (en) * 1987-05-14 1988-11-15 Norwegian Contractors PROCEDURE FOR AA INSTALLING A LIQUID BODY ON A SEA.
FR2720086B1 (en) * 1991-01-15 1996-07-26 Doris Engineering Method for installing a device for protection against swell and device resulting from the implementation of this method.
NO302284B1 (en) * 1993-12-10 1998-02-16 Aker Norwegian Contractors As Procedure for immersion and installation on the seabed of a storage tank for petroleum products
US5558467A (en) 1994-11-08 1996-09-24 Deep Oil Technology, Inc. Deep water offshore apparatus
US5609442A (en) * 1995-08-10 1997-03-11 Deep Oil Technology, Inc. Offshore apparatus and method for oil operations

Also Published As

Publication number Publication date
FI981967A0 (en) 1998-09-14
EP0908382A3 (en) 1999-08-11
AU8517998A (en) 1999-04-01
OA10876A (en) 2001-10-05
NO984239D0 (en) 1998-09-14
BR9803458A (en) 2002-07-09
EP0908382A2 (en) 1999-04-14

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application