GB2018700A - Ballasting system for an offshore structure - Google Patents

Ballasting system for an offshore structure

Info

Publication number
GB2018700A
GB2018700A GB7912348A GB7912348A GB2018700A GB 2018700 A GB2018700 A GB 2018700A GB 7912348 A GB7912348 A GB 7912348A GB 7912348 A GB7912348 A GB 7912348A GB 2018700 A GB2018700 A GB 2018700A
Authority
GB
United Kingdom
Prior art keywords
ballast
tanks
admitted
ballasting system
sea floor
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
GB7912348A
Other versions
GB2018700B (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.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology Co
Chevron Research Co
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 Chevron Research and Technology Co, Chevron Research Co filed Critical Chevron Research and Technology Co
Publication of GB2018700A publication Critical patent/GB2018700A/en
Application granted granted Critical
Publication of GB2018700B publication Critical patent/GB2018700B/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Revetment (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

A ballasting system for an offshore structure of generally conical shape which has an external shell which generally converges upwardly and inwardly to form a ramp-like outer surface, includes a plurality of radially and circumferentially disposed ballast tanks which are positioned within the external shell of the structure to form a plurality of concentrically arranged discrete rings of ballast tanks. Ballast is admitted into the tanks so that the structure is lowered in a substantially level manner to its maximum stable draft. Ballast is then transferred from one side of the structure to the other until the structure is tilted to a sufficient degree so that only a portion of the bottom of the structure is in contact with the sea floor. Additional ballast is then admitted into the tanks to position the structure on the sea floor. <IMAGE>
GB7912348A 1978-04-14 1979-04-09 Ballasting system for an offshore structure Expired GB2018700B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89626578A 1978-04-14 1978-04-14

Publications (2)

Publication Number Publication Date
GB2018700A true GB2018700A (en) 1979-10-24
GB2018700B GB2018700B (en) 1982-08-04

Family

ID=25405916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7912348A Expired GB2018700B (en) 1978-04-14 1979-04-09 Ballasting system for an offshore structure

Country Status (6)

Country Link
JP (1) JPS54137801A (en)
DK (1) DK160037C (en)
FI (1) FI790158A (en)
GB (1) GB2018700B (en)
NO (1) NO149319C (en)
SE (1) SE438693B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325655A (en) 1980-01-16 1982-04-20 Exxon Production Research Company Multiple slope structure
US4497594A (en) * 1982-09-30 1985-02-05 Mcdermott Incorporated Offshore structure and method of sinking same
US4576519A (en) * 1983-05-23 1986-03-18 Exxon Production Research Co. Offshore platform base

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112623134A (en) * 2021-01-06 2021-04-09 广东海洋大学 Novel floating platform and operation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1366770A (en) * 1972-04-04 1974-09-11 Taylor Woodrow Const Ltd Submersible structures
JPS50144201A (en) * 1974-05-08 1975-11-20

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325655A (en) 1980-01-16 1982-04-20 Exxon Production Research Company Multiple slope structure
US4497594A (en) * 1982-09-30 1985-02-05 Mcdermott Incorporated Offshore structure and method of sinking same
US4576519A (en) * 1983-05-23 1986-03-18 Exxon Production Research Co. Offshore platform base

Also Published As

Publication number Publication date
SE7901086L (en) 1979-10-15
SE438693B (en) 1985-04-29
GB2018700B (en) 1982-08-04
NO791242L (en) 1979-10-16
JPS6158610B2 (en) 1986-12-12
DK160037C (en) 1991-06-17
DK140279A (en) 1979-10-15
FI790158A (en) 1979-10-15
JPS54137801A (en) 1979-10-25
NO149319C (en) 1984-03-28
DK160037B (en) 1991-01-21
NO149319B (en) 1983-12-19

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Legal Events

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

Effective date: 19940409