GB1431804A - Tower for the exploration and exploitation of the seabed and to the assembly and erection of such a tower - Google Patents

Tower for the exploration and exploitation of the seabed and to the assembly and erection of such a tower

Info

Publication number
GB1431804A
GB1431804A GB2171773A GB2171773A GB1431804A GB 1431804 A GB1431804 A GB 1431804A GB 2171773 A GB2171773 A GB 2171773A GB 2171773 A GB2171773 A GB 2171773A GB 1431804 A GB1431804 A GB 1431804A
Authority
GB
United Kingdom
Prior art keywords
columns
platform
pontoon
framework
sea bed
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
GB2171773A
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.)
DEQUIPEMENT MARITIME HERSENT C
Original Assignee
DEQUIPEMENT MARITIME HERSENT C
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 DEQUIPEMENT MARITIME HERSENT C filed Critical DEQUIPEMENT MARITIME HERSENT C
Publication of GB1431804A publication Critical patent/GB1431804A/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
    • E02B17/027—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
    • 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
    • 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0086—Large footings connecting several legs or serving as a reservoir for the storage of oil or gas

Landscapes

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

Abstract

1431804 Offshore structures COMPAGNIE GENERALE D'EQUIPEMENT MARITIME HERSENT 7 May 1973 [8 May 1972] 21717/73 Heading E1H An offshore structure is constructed by assembling a floatable pontoon I and a platform 2 equipped with jacking means 5 and columns 3 comprising sets of columns 3a and 3b for raising the platform relative to the pontoon, anchoring the pontoon in relatively shallow water lowering the columns to the sea bed to support the pontoon and erecting a framework 4 thereon. The columns are then raised, and the platform 2, which now rests on the framework 4 is held firmly thereon by means on the columns 3a engaging the bottom of pontoon 1, whilst the structure is towed to a deep-water site and moored. The columns 3b are released and penetrate the sea bed and the pontoon 1 is ballasted, the structure being lowered by the jacking means engaging columns 3b until the platform 2 reaches sea-level, the columns 3b being raised meanwhile to prevent bending stresses therein. The pontoon 1 and framework 4 are then lowered relative to the platform by means of columns 3a and the corresponding jacking means 5 until the pontoon 1 sits on the sea bed, the platform then being raised above sea level on columns 3. A pile guide is now attached to the columns 3a between the platform and the framework and piles formed from columns 3b are driven through the inclined members of the framweork. The piles are internally reinforced in the region between the platform and the framework. Columns 3a are also driven into the sea bed and secured to the platform.
GB2171773A 1972-05-08 1973-05-07 Tower for the exploration and exploitation of the seabed and to the assembly and erection of such a tower Expired GB1431804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7216378A FR2184146A5 (en) 1972-05-08 1972-05-08

Publications (1)

Publication Number Publication Date
GB1431804A true GB1431804A (en) 1976-04-14

Family

ID=9098155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2171773A Expired GB1431804A (en) 1972-05-08 1973-05-07 Tower for the exploration and exploitation of the seabed and to the assembly and erection of such a tower

Country Status (6)

Country Link
US (1) US3839873A (en)
JP (1) JPS4955101A (en)
DE (1) DE2323135A1 (en)
FR (1) FR2184146A5 (en)
GB (1) GB1431804A (en)
NL (1) NL7306354A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102787590A (en) * 2011-05-17 2012-11-21 中国石油化工集团公司 Hydraulic lifting pile righting guide device for offshore jack-up platform

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983828A (en) * 1976-01-05 1976-10-05 Standard Oil Company (Indiana) Vertically moored platform installation
FI802781A (en) * 1979-09-07 1981-03-08 Brown & Ass James G STOEDSTRUKTUR FOER HAVSPLATTFORM
EP2784310B1 (en) * 2013-03-25 2017-11-22 Alstom Renovables España, S.L. Wind turbine tower section, a wind turbine having such tower section and method for forming such tower section
CN104452717B (en) * 2014-10-29 2016-03-09 上海大学 Self-lifting type marine drilling platform lifting apparatus and method
FR3067047B1 (en) * 2017-06-06 2019-07-26 Ideol METHOD FOR LAUNCHING

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621485A (en) * 1947-02-21 1952-12-16 Stanolind Oil & Gas Co Marine structure
US2771747A (en) * 1950-07-19 1956-11-27 Bethlehem Steel Corp Offshore drilling barge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102787590A (en) * 2011-05-17 2012-11-21 中国石油化工集团公司 Hydraulic lifting pile righting guide device for offshore jack-up platform

Also Published As

Publication number Publication date
JPS4955101A (en) 1974-05-29
DE2323135A1 (en) 1973-11-29
US3839873A (en) 1974-10-08
NL7306354A (en) 1973-11-12
FR2184146A5 (en) 1973-12-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee