FR2244357A5 - Drilling platform floated into position - has annular column whose buoyancy is adjusted to vary flotation - Google Patents

Drilling platform floated into position - has annular column whose buoyancy is adjusted to vary flotation

Info

Publication number
FR2244357A5
FR2244357A5 FR7333058A FR7333058A FR2244357A5 FR 2244357 A5 FR2244357 A5 FR 2244357A5 FR 7333058 A FR7333058 A FR 7333058A FR 7333058 A FR7333058 A FR 7333058A FR 2244357 A5 FR2244357 A5 FR 2244357A5
Authority
FR
France
Prior art keywords
wall
flotation
vary
adjusted
drilling platform
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
FR7333058A
Other languages
French (fr)
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.)
EUROP ETUDES
Original Assignee
EUROP ETUDES
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 EUROP ETUDES filed Critical EUROP ETUDES
Priority to FR7333058A priority Critical patent/FR2244357A5/en
Application granted granted Critical
Publication of FR2244357A5 publication Critical patent/FR2244357A5/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D23/00—Caissons; Construction or placing of caissons
    • E02D23/02—Caissons able to be floated on water and to be lowered into water in situ
    • 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
    • E02B17/025—Reinforced concrete structures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Earth Drilling (AREA)
  • Revetment (AREA)

Abstract

The platform has a lower part (1) which is a cylindrical hollow with an enlarged base which projects (2). This part is reinforced by counterforts (3) and a wall around the periphery. This wall has a number of holes in it. There is also a perforated wall in the upper section (4). This wall has a dampening effect on the waves. The wall is strengthened by a counterfort. At the centre of the structure there is a hollow column which supports the roof. The lower part (1) is partially filled with air and water during transport and is filled with water to sink the platform on arrival on site.
FR7333058A 1973-09-14 1973-09-14 Drilling platform floated into position - has annular column whose buoyancy is adjusted to vary flotation Expired FR2244357A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7333058A FR2244357A5 (en) 1973-09-14 1973-09-14 Drilling platform floated into position - has annular column whose buoyancy is adjusted to vary flotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7333058A FR2244357A5 (en) 1973-09-14 1973-09-14 Drilling platform floated into position - has annular column whose buoyancy is adjusted to vary flotation

Publications (1)

Publication Number Publication Date
FR2244357A5 true FR2244357A5 (en) 1975-04-11

Family

ID=9125034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7333058A Expired FR2244357A5 (en) 1973-09-14 1973-09-14 Drilling platform floated into position - has annular column whose buoyancy is adjusted to vary flotation

Country Status (1)

Country Link
FR (1) FR2244357A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073627A3 (en) * 2009-12-18 2011-08-04 Alstom Technology Ltd Foundation structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073627A3 (en) * 2009-12-18 2011-08-04 Alstom Technology Ltd Foundation structure
US9133597B2 (en) 2009-12-18 2015-09-15 Alstom Renewable Technologies Foundation structure

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Legal Events

Date Code Title Description
ST Notification of lapse