GB1463992A - Platform for the research and exploitation of submarine deposits - Google Patents
Platform for the research and exploitation of submarine depositsInfo
- Publication number
- GB1463992A GB1463992A GB5160174A GB5160174A GB1463992A GB 1463992 A GB1463992 A GB 1463992A GB 5160174 A GB5160174 A GB 5160174A GB 5160174 A GB5160174 A GB 5160174A GB 1463992 A GB1463992 A GB 1463992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- floor
- compartments
- base
- projections
- peripheral wall
- 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
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)
- Revetment (AREA)
Abstract
1463992 Offshore structures SOC ENTREPOSE G T M POUR LES TRAVAUX PETROLIERS MARITIMES 28 Nov 1974 [29 Nov 1973 18 June 1974] 51601/74 Heading E1H An offshore structure comprises vertical legs for supporting a deck and a base formed by a rigid floor and a peripheral wall consisting of a stack of hollow annular members which can be used for ballasting and/or storage purposes. In a first embodiment (Fig. 1) the wall is constituted by three superimposed tubes 6a, 6b, 6c and the floor 2 is stiffened by concentric members 3, non-radial members 4 and taller radial bulkheads 7 e.g. 7a1, 7a2 which divide the base into open topped compartments. The structure is towed to its site with these compartments at least partially filled to provide stability and there sunk by flooding compartments in the tubes and ducts in the legs which have valves 10a-d for controllably connecting these ducts to the ambient medium. In plan the base may be circular, polygonal square or rectangular and may have a roof structure (not shown) above the floor 2 which with the peripheral wall encloses a chamber for storage purposes. To secure the platform to the bottom, the floor 2 may carry on its underside depending projections which engage the bottom material or it may have apertures with depending divergent nozzles through which gravel passes from storage compartments on the floor 2 when the apertures are opened by remote control (Figs. 9 and 10: not shown). In an alternative embodiment (not shown) the peripheral wall of the base is formed by one tube supported by two vertical circular walls and the space so defined may be used for ballasting or storage. A perforated roof structure may be provided above the floor and projections on the underside of the floor define compartments which can be partially evacuated to create a pressure gradient and thereby facilitate penetration of the projections into the bottom material.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7342542A FR2253380A5 (en) | 1973-11-29 | 1973-11-29 | Concrete platform - for undersea oil prospecting and production |
FR7421080A FR2275594A2 (en) | 1974-06-18 | 1974-06-18 | Platform for locating and exploiting underwater oil - or similar deposits (NO230675 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1463992A true GB1463992A (en) | 1977-02-09 |
Family
ID=26218051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5160174A Expired GB1463992A (en) | 1973-11-29 | 1974-11-28 | Platform for the research and exploitation of submarine deposits |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5094701A (en) |
GB (1) | GB1463992A (en) |
NO (1) | NO744288L (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0035023A1 (en) * | 1979-08-06 | 1981-09-09 | Offshore Co | Gravity base, jack-up platform method and apparatus. |
GB2493720A (en) * | 2011-08-15 | 2013-02-20 | Ove Arup & Partners Internat Ltd | Gravity foundation for an offshore structure |
CN109444981A (en) * | 2018-11-30 | 2019-03-08 | 天津大学 | A kind of aqueous vapor autocontrol sea floor exploration platform and exploitation method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2323823A1 (en) * | 1975-09-11 | 1977-04-08 | Metalliques Entrepr Cie Fse | Anchorage for an off-shore platform - has the submerged base surrounded with concrete instead of loaded with ballast |
JPS61146909A (en) * | 1984-12-20 | 1986-07-04 | Takenaka Komuten Co Ltd | Gravity type off-shore structure and method of stably installing the same |
-
1974
- 1974-11-28 GB GB5160174A patent/GB1463992A/en not_active Expired
- 1974-11-28 NO NO744288A patent/NO744288L/no unknown
- 1974-11-29 JP JP49137633A patent/JPS5094701A/ja active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0035023A1 (en) * | 1979-08-06 | 1981-09-09 | Offshore Co | Gravity base, jack-up platform method and apparatus. |
EP0035023A4 (en) * | 1979-08-06 | 1982-07-19 | Offshore Co | Gravity base, jack-up platform method and apparatus. |
GB2493720A (en) * | 2011-08-15 | 2013-02-20 | Ove Arup & Partners Internat Ltd | Gravity foundation for an offshore structure |
CN109444981A (en) * | 2018-11-30 | 2019-03-08 | 天津大学 | A kind of aqueous vapor autocontrol sea floor exploration platform and exploitation method |
Also Published As
Publication number | Publication date |
---|---|
NO744288L (en) | 1975-06-23 |
JPS5094701A (en) | 1975-07-28 |
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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 |