NL1005463C1 - Method of installation of semi=permanent off=shore platform - consists of platform on pontoons which can move up or down support legs which are partly embedded in seabed - Google Patents
Method of installation of semi=permanent off=shore platform - consists of platform on pontoons which can move up or down support legs which are partly embedded in seabed Download PDFInfo
- Publication number
- NL1005463C1 NL1005463C1 NL1005463A NL1005463A NL1005463C1 NL 1005463 C1 NL1005463 C1 NL 1005463C1 NL 1005463 A NL1005463 A NL 1005463A NL 1005463 A NL1005463 A NL 1005463A NL 1005463 C1 NL1005463 C1 NL 1005463C1
- Authority
- NL
- Netherlands
- Prior art keywords
- platform
- legs
- installation
- support legs
- pontoons
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- 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
-
- 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
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- 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
-
- 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
- E02B2017/0078—Suction piles, suction cans
-
- 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
- E02B2017/0082—Spudcans, skirts or extended feet
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Foundations (AREA)
Abstract
Description
-Ιο Korte aanduiding: Werkwijze voor het buitengaats installeren van een semi permanent platform met penetreerde poten.-Ιο Short designation: Procedure for the offshore installation of a semi permanent platform with penetrated legs.
De uitvinding heeft betrekking op een werkwijze en uitvoering voor het buitengaats installeren van een semi-permanent platform met intrekbare poten. Een dergelijke 5 werkwijze is bekend.The invention relates to a method and embodiment for the offshore installation of a semi-permanent platform with retractable legs. Such a method is known.
Bij een dergelijke werkwijze worden de poten van het onderstel en dek zodanig gebouwd dat het door middel van tijdelijk verankerde poten op de bodem blijft staan om gemakkelijk de constructie te plaatsen.In such a method, the legs of the undercarriage and deck are constructed in such a way that they remain on the bottom by means of temporarily anchored legs for easy placement of the structure.
De uitvinding heeft tot doel om een platform te plaatsen welke de voordelen van een 10 vast platform heeft, betreffende de certificering alsmede de voordelen van een verplaatsbaar platform en hierdoor tot een zo licht mogelijke poot constructie, alsmede kostenreductie te komen. Dit doel wordt bereikt door een momentvaste bevestiging van de poten in de grond en aan het platform.The object of the invention is to place a platform which has the advantages of a fixed platform, regarding the certification as well as the advantages of a movable platform and thereby achieve the lightest possible leg construction, as well as cost reduction. This goal is achieved by a torque-tight attachment of the legs to the ground and to the platform.
Door het platform als twee drijvers met een verbindende constructie te bouwen wordt 15 gewicht bespaard. De voorkeursuitvoeringsvormen van de werkwijze en de uitvinding zijn vastgelegd in de afhankelijke conclusies.By building the platform as two floats with a connecting construction, 15 weight is saved. The preferred embodiments of the method and the invention are defined in the dependent claims.
De uitvinding zal in het hierna volgende voorbeeld nader worden toegelicht aan de hand van tekeningen, waarin:The invention will be further elucidated in the following example with reference to drawings, in which:
Figuur 1 de gehele samenstelling van de constructie toont in de geïnstalleerde positie. 20 Figuur 2 een poot/grond bevestiging toont, met betrekking tot het verkrijgen van penetratie om zodoende een inklemmingsmoment in de bodem te kunnen laten meewerken in de sterkte van de poot alsmede de zetting te kunnen minimaliseren.Figure 1 shows the entire construction composition in the installed position. Figure 2 shows a leg / ground attachment, with regard to obtaining penetration in order to allow a clamping moment in the soil to contribute to the strength of the leg and to minimize the settlement.
Figuur 3 een poot/platform bevestiging toont met betrekking tot het verkrijgen van een 25 inklemmingsmoment in het platform, welke mee werkt in de sterkte van de poot. En deze bevestiging voorkomt kanteling van de poten gedurende transport van de samengestelde constructie.Figure 3 shows a leg / platform attachment with respect to obtaining a clamping moment in the platform, which contributes to the strength of the leg. And this attachment prevents tilting of the legs during transportation of the composite structure.
^05463 1 -2- o Figuur 4 een zijaanzicht, toont van de samengestelde constructie met daarin het dek in drijvende positie.^ 05463 1 -2- o Figure 4 shows a side view of the composite construction with the deck in floating position.
Figuur 5 een zij-aanzicht, toont van de samengestelde constructie met het dek in opgevijzelde positie.Figure 5 shows a side view of the composite structure with the deck in jacked position.
De in Figuren 1 tot en met 5 getoonde werkwijzen vormen de buitengaats installatie van 5 de samengestelde constructie.The methods shown in Figures 1 to 5 form the offshore installation of the composite structure.
Toelichting bij figuur 1, het platform (1) met de klemconstructie (3), op het land gebouwd en samengesteld met de poten (2), de zuigankers (4) en de variabele, van de functie afhankelijke dekbelasting (5)Explanation to figure 1, the platform (1) with the clamping construction (3), built on land and assembled with the legs (2), the suction anchors (4) and the variable, function-dependent deck load (5)
Toelichting bij figuur 2, verdikte poot in de zeebodem gepenetreerd tot een diepte zodat io de zetting binnen de toelaatbare grenzen valt en de mogelijkheid om doormiddel van een tijdelijke pomp de poot uit de grond te persen.Explanation to figure 2, thickened leg penetrated into the seabed to a depth so that the settlement falls within the permissible limits and the possibility of pressing the leg out of the ground by means of a temporary pump.
Toelichting bij figuur 3, de bovenwiggen (9) en de onderwiggen (10) klemmen de poot (2) in de geleiding (8) door het platform (1). Tijdens het verticaal bewegen van de poten (2) of het platform (1) worden de poten geleid door de geleidingsplaten (7) en de is bovenwiggen (9) welke in een positie zijn gesteld zodanig dat de scheefstand van de poten (2) gedurende de beweging binnen toelaatbare grenzen blijft. Voor het inklemmen van de poten worden de onderwiggen (10) bediend door de trekstangen (11) vanaf het dek van het platform.Explanation of figure 3, the upper wedges (9) and the lower wedges (10) clamp the leg (2) in the guide (8) through the platform (1). During the vertical movement of the legs (2) or the platform (1), the legs are guided by the guide plates (7) and the upper wedges (9) are set in such a position that the tilt of the legs (2) during the movement remains within permissible limits. To clamp the legs, the lower wedges (10) are operated by the tie rods (11) from the deck of the platform.
Toelichting bij figuur 4, de uitvinding in drijvende toestand tijdens transport naar de 20 installatieplaats, uitgerust met een tijdelijk vijzelmechanisme (6).Explanation to figure 4, the invention in floating state during transport to the installation site, equipped with a temporary jacking mechanism (6).
Toelichting bij figuur 5, de uitvinding in de geïnstalleerde positie, geplaatst op de zeebodem. De kosten van het installeren op zee kunnen tot een fractie van de kosten worden gereduceerd worden, door de constructievorm van het platform volgens de uitvinding en het feit dat deze methode geen hulp vereist van een zwaar en daardoor 25 zeer duur kraanschip. Hergebruik op verschillende locaties is mogelijk zonder het platform eerst voor aanpassingen naar een werf terug te sturen.Explanation of figure 5, the invention in the installed position, placed on the seabed. The cost of installing at sea can be reduced to a fraction of the cost, due to the construction form of the platform according to the invention and the fact that this method does not require the help of a heavy and therefore very expensive crane vessel. Reuse at various locations is possible without first returning the platform to a construction site for modifications.
Het hiervoor beschreven platform en de wijze van installeren is in het bijzonder geschikt voor toepassingen op kleine olie en gasvelden in waterdiepten van 20 to 50 meter in Noordzee condities.The platform described above and the method of installation is particularly suitable for applications on small oil and gas fields in water depths of 20 to 50 meters in North Sea conditions.
10054631005463
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1005463A NL1005463C1 (en) | 1997-03-07 | 1997-03-07 | Method of installation of semi=permanent off=shore platform - consists of platform on pontoons which can move up or down support legs which are partly embedded in seabed |
NL1006439A NL1006439C1 (en) | 1997-03-07 | 1997-07-01 | Installation system at sea for semi-permanent two-part platform |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1005463 | 1997-03-07 | ||
NL1005463A NL1005463C1 (en) | 1997-03-07 | 1997-03-07 | Method of installation of semi=permanent off=shore platform - consists of platform on pontoons which can move up or down support legs which are partly embedded in seabed |
Publications (2)
Publication Number | Publication Date |
---|---|
NL1005463A1 NL1005463A1 (en) | 1997-05-02 |
NL1005463C1 true NL1005463C1 (en) | 1998-04-10 |
Family
ID=19764548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL1005463A NL1005463C1 (en) | 1997-03-07 | 1997-03-07 | Method of installation of semi=permanent off=shore platform - consists of platform on pontoons which can move up or down support legs which are partly embedded in seabed |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL1005463C1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO336982B1 (en) * | 2012-12-19 | 2015-12-07 | Sevan Marine Asa | Submersible hull with levelable foundation and method of supporting the hull on a seabed |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2004358C2 (en) | 2010-03-08 | 2011-09-09 | Korndorffer Contracting Internat K C I B V | Offshore installation and method for connecting cabling and/or piping thereto. |
-
1997
- 1997-03-07 NL NL1005463A patent/NL1005463C1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO336982B1 (en) * | 2012-12-19 | 2015-12-07 | Sevan Marine Asa | Submersible hull with levelable foundation and method of supporting the hull on a seabed |
Also Published As
Publication number | Publication date |
---|---|
NL1005463A1 (en) | 1997-05-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
VD2 | Lapsed due to expiration of the term of protection |
Effective date: 20030307 |