FR2251208A5 - Offshore working platform - includes dry central shaft for pipes and maintenance and widened base - Google Patents

Offshore working platform - includes dry central shaft for pipes and maintenance and widened base

Info

Publication number
FR2251208A5
FR2251208A5 FR7340272A FR7340272A FR2251208A5 FR 2251208 A5 FR2251208 A5 FR 2251208A5 FR 7340272 A FR7340272 A FR 7340272A FR 7340272 A FR7340272 A FR 7340272A FR 2251208 A5 FR2251208 A5 FR 2251208A5
Authority
FR
France
Prior art keywords
shaft
pipes
maintenance
central shaft
working 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
FR7340272A
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.)
Compagnie Generale Pour Les Developpements Operationnels Des Richesses s Ous Marines C G Doris
Original Assignee
Compagnie Generale Pour Les Developpements Operationnels Des Richesses s Ous Marines C G Doris
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 Compagnie Generale Pour Les Developpements Operationnels Des Richesses s Ous Marines C G Doris filed Critical Compagnie Generale Pour Les Developpements Operationnels Des Richesses s Ous Marines C G Doris
Priority to FR7340272A priority Critical patent/FR2251208A5/en
Priority to GB4553874A priority patent/GB1464162A/en
Priority to CA212,759A priority patent/CA1010247A/en
Priority to ES431754A priority patent/ES431754A1/en
Priority to NL7414295A priority patent/NL7414295A/en
Priority to DE19742452161 priority patent/DE2452161A1/en
Priority to US05/521,075 priority patent/US3938343A/en
Priority to NO744004A priority patent/NO142038C/en
Priority to BR9456/74A priority patent/BR7409456A/en
Priority to AU75211/74A priority patent/AU479669B2/en
Priority to DK587274A priority patent/DK587274A/da
Application granted granted Critical
Publication of FR2251208A5 publication Critical patent/FR2251208A5/en
Priority to NO773780A priority patent/NO773780L/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/017—Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station
    • 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
    • E02B17/0017—Means for protecting offshore constructions
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • 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
    • E02B2017/0095—Connections of subsea risers, piping or wiring with the offshore structure

Abstract

An artificial island for use as platform for off-shore drilling, power or distributor stations is a massive cylindrical tower which rests by its own weight on the bottom of sea and has a widened flange at the bottom, with perforated walls. The centre of the island is a stiff watertight shaft to accommodate pipes, cables and other functional appts. protected from attack by sea water and impacts. The shaft forms a pillar to support the superstructure which protrudes above sea level. The shaft can readily be extended downwards as deep as an impervious stratum so that no divers are reqd. Any eruption of oil from a well would pass through the shaft and could not upset the stability of the platform.
FR7340272A 1973-11-13 1973-11-13 Offshore working platform - includes dry central shaft for pipes and maintenance and widened base Expired FR2251208A5 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FR7340272A FR2251208A5 (en) 1973-11-13 1973-11-13 Offshore working platform - includes dry central shaft for pipes and maintenance and widened base
GB4553874A GB1464162A (en) 1973-11-13 1974-10-21 Platforms for maritime installations
CA212,759A CA1010247A (en) 1973-11-13 1974-10-31 Platform structure for maritime installation
ES431754A ES431754A1 (en) 1973-11-13 1974-10-31 Platform structure for maritime installation
NL7414295A NL7414295A (en) 1973-11-13 1974-11-01 DRILLING PLATFORM.
DE19742452161 DE2452161A1 (en) 1973-11-13 1974-11-02 ARTIFICIAL ISLAND
US05/521,075 US3938343A (en) 1973-11-13 1974-11-05 Platform structure for maritime installation
NO744004A NO142038C (en) 1973-11-13 1974-11-06 HEAVY-TYPE FORMAL PLATFORM.
BR9456/74A BR7409456A (en) 1973-11-13 1974-11-11 PLATFORM STRUCTURE FOR INSTALLATION OF EXPLORATION AT SEA
AU75211/74A AU479669B2 (en) 1973-11-13 1974-11-11 Platform structure for maritime installation
DK587274A DK587274A (en) 1973-11-13 1974-11-12
NO773780A NO773780L (en) 1973-11-13 1977-11-04 FRALAND PLATFORM OF GRAVITY TYPE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7340272A FR2251208A5 (en) 1973-11-13 1973-11-13 Offshore working platform - includes dry central shaft for pipes and maintenance and widened base

Publications (1)

Publication Number Publication Date
FR2251208A5 true FR2251208A5 (en) 1975-06-06

Family

ID=9127642

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7340272A Expired FR2251208A5 (en) 1973-11-13 1973-11-13 Offshore working platform - includes dry central shaft for pipes and maintenance and widened base

Country Status (2)

Country Link
FR (1) FR2251208A5 (en)
NO (1) NO773780L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325771A2 (en) * 1975-09-26 1977-04-22 Canadian Patents Dev PLATFORM ON PEDESTAL FOR WORK AT SEA CONTAINING A SUBMERSIBLE STORAGE TANK TO GREAT DEPTH
CN115012377A (en) * 2022-07-11 2022-09-06 中船黄埔文冲船舶有限公司 Bolt type pile leg structure of offshore platform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325771A2 (en) * 1975-09-26 1977-04-22 Canadian Patents Dev PLATFORM ON PEDESTAL FOR WORK AT SEA CONTAINING A SUBMERSIBLE STORAGE TANK TO GREAT DEPTH
CN115012377A (en) * 2022-07-11 2022-09-06 中船黄埔文冲船舶有限公司 Bolt type pile leg structure of offshore platform
CN115012377B (en) * 2022-07-11 2024-01-23 中船黄埔文冲船舶有限公司 Bolt type pile leg structure of offshore platform

Also Published As

Publication number Publication date
NO773780L (en) 1975-05-14

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Legal Events

Date Code Title Description
ST Notification of lapse