WO2011138195A1 - Base frame for a self-erecting marine platform - Google Patents

Base frame for a self-erecting marine platform Download PDF

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Publication number
WO2011138195A1
WO2011138195A1 PCT/EP2011/056598 EP2011056598W WO2011138195A1 WO 2011138195 A1 WO2011138195 A1 WO 2011138195A1 EP 2011056598 W EP2011056598 W EP 2011056598W WO 2011138195 A1 WO2011138195 A1 WO 2011138195A1
Authority
WO
WIPO (PCT)
Prior art keywords
base frame
platform
marine platform
sea
cable guide
Prior art date
Application number
PCT/EP2011/056598
Other languages
German (de)
French (fr)
Inventor
Gerald Franz Giering
Stephan Schwab
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP11718692A priority Critical patent/EP2567031A1/en
Priority to CN2011800224562A priority patent/CN102869836A/en
Priority to US13/696,119 priority patent/US20130202361A1/en
Publication of WO2011138195A1 publication Critical patent/WO2011138195A1/en

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
    • 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
    • E02B17/021—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 with relative movement between supporting construction and platform
    • 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
    • E02B2017/0043—Placing the offshore structure on a pre-installed foundation 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0082—Spudcans, skirts or extended feet
    • 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

Definitions

  • the invention relates to a base frame for a self-erecting marine platform and to a method for setting up a marine platform.
  • a self-erecting marine platform is known, for example, from EP 0 959 182 B1.
  • a sesetzstel ⁇ ing oil platform which has a floating on the water housing or in other words a pontoon with a substantially rectangular plan, which has telescopically downwardly extendable support columns in its corners.
  • the sea platform is made in dry dock and, after flooding the dry dock, is floated floating from ships to their place of work.
  • the telescopic support columns are extended down to the seabed and anchored there. In this case, the support columns are extended so far that the Meeresplatt ⁇ form lifts out of the water and is held with the required safety height above the water surface.
  • a disadvantage even Fielding sea platforms is that the maximum sea depth to which they can be placed is be ⁇ limited to currently 45 m.
  • the object of the invention is therefore to provide a possibility ⁇ with which self-erecting marine platforms can be used even at greater depths of the sea.
  • the invention achieves this object by a base frame for a self-erecting marine platform, wherein the base frame anchoring means for anchoring the base frame on the seabed and a foundation scaffold, which is fixedly connected to the anchoring Means, the foundation scaffold having support areas for supporting the marine platform.
  • the invention solves this problem further by a method for setting up a marine platform, in which a base frame firmly anchored below the sea surface on the seabed, a self-erecting marine platform supported on the base frame and then the base frame is firmly connected to the self-erecting marine platform.
  • a self-erecting marine platform is no longer anchored as in the prior art with their extendable support feet directly on the seabed. Rather, a base frame is used, which is firmly anchored with its anchoring means on the seabed.
  • Thesaufstellende marine resc is subsequently to the base frame is ⁇ .
  • the base frame to a height which is suffi ⁇ cient to keep the sea platform at the respective depth of the sea after the extension of their support feet sufficiently high above the sea surface.
  • the base frame is thus provided for setting up a self-erecting marine platform, which as such is known to a person skilled in the art, for example, from EP 0 959 182 B1.
  • the self-erecting Mee ⁇ resb has hydraulically or pneumatically extendable support columns with which the self-erecting marine platform is supported on the support areas of the foundation framework of the base frame. After contacting the support areas of the base frame is firmly connected to the support columns of the self-erecting marine platform.
  • the base frame cable management means which are adapted for guiding underwater cables from the seabed to the sea platform.
  • the marine platform which has, for example electrical construction ⁇ parts for recirculating an electrical AC or DC voltage, regardless of the submarine cables and thus built on land and checked for their electrical properties and withstand voltages.
  • the so com- pletely finished and tested offshore platform is at ⁇ closing floating to the base frame ge ⁇ drags on the water and placed on this.
  • the electronic components can be connected to the submarine cables that are already out of the water.
  • the subsea cables are already firmly attached to the cable management system. In this way, the erection of the sea ⁇ platform is simplified.
  • the electrical components of the self-erecting marine platform are, for example
  • the cable guide means are firmly connected to the foundation scaffold.
  • the cable guide means are designed as a hollow cable management tower ⁇ inside.
  • the cable guide tower expediently has such a height that its free end protruding from the water is arranged in the installed state at the height of a housing or pon ⁇ tons of the fully installed marine platform.
  • the base frame is equipped on land with a cable guide tower. At- is closing the base frame to its deployment site in ⁇ play, transported with the aid of a ship and anchored to the sea floor. Subsequently, the underwater cages are led through the cable guide tower to its free end. Finally, thesaufstellende marine Platt ⁇ form is placed on the base frame and the electrical components of the marine platform to the underwater cable is Schlos ⁇ sen.
  • the cable guide means are equipped with an interface to which the free ends of the underwater cables are attached. The cables of the marine platform can then also be connected to the interface.
  • the base frame is equipped with locking means for anchoring the self-erecting marine platform.
  • the locking means allow a solid solid connection between the sea platform and the base frame.
  • Figure 1 shows a first embodiment of the inventive ⁇ basic frame schematically
  • FIG. 2 further embodiment of the inventions
  • FIG. 1 shows an embodiment of the base frame 1 according to the invention, which firmly anchors to a seabed 2 is.
  • the base frame 1 locking means in the form of anchor feet 3, which are fixedly connected to a foundation scaffold 4.
  • the foundation scaffold 4 has parallel to the seabed aligned support areas 5, on which support columns 6 a self-erecting marine platform 7 are supported.
  • the self-erecting Meeresplatt ⁇ form 7, in addition to the support columns 6 still a housing or pontoon 8, are housed in the figuratively not shown components of a substation for transposing a medium voltage in a high voltage.
  • the support columns 6 Mee ⁇ res york 7 are firmly connected to the base frame 1.
  • the sea surface 9 and the sea depth T as well as the height H are illustrated schematically schematically in FIG. 1, with which the pontoon 8 of the self-erecting marine platform 7 is held above the sea surface 9.
  • the water depth T is about 80 meters.
  • the base frame 1 is first transported to the place where the sea ⁇ platform is to be installed. 7 First, the reason ⁇ frame 1 is firmly anchored by the anchoring means 3 at the seabed. 2 Subsequently, the self-erecting Meeresplatt ⁇ form 7 is towed with its floating pontoon 8 to the base frame 1 and positioned exactly above this, so that the support columns 6 are arranged directly above the support areas 5.
  • FIG. 2 shows a further embodiment of the base frame 1 according to the invention, which in this case is equipped with a cable guide tower 10 which extends from the seabed 2 out of the water to the pontoon 8 of the self-erecting marine platform 7.
  • the cable guide tower 10 is welded by connecting means 11 fixed to the foundation frame 14 of the base frame 1.
  • Underwater cables 12 are inserted into the cable management tower 10 from below and extend to the upper free end of the cable management tower 10, which is located at the level of the pontoon 8 of the sea platform 7.
  • the underwater cable in a simple manner with the components of the marine platform ⁇ 7 7 can be connected to up the offshore platform from the cable guide tower 10th
  • the marine platform 7 can be manufactured independently of the base frame 1 and tested for its electronic components, such as transformers, switches or the like.
  • anchor means 3 are designed as foundation pillars whose free end extends deep into the seabed 2. Above the seabed 2, each foundation pillar is part of the foundation scaffold 4.
  • the housing or floating pontoon 8 of the marine platform 7 has a plurality of floors 13, in which the electronic components are housed.

Abstract

The invention relates to a base frame (1) for a self-erecting marine platform (7) and to a method for erecting the self-erecting marine platform (7). According to the invention, the base frame (1) is first rigidly anchored to the sea floor (2). Support columns (6) of the marine platform are then hydraulically extended, for example, until said columns come into contact with support regions (5) for supporting the marine platform (7) under water. The support columns (6) are then rigidly connected to the base frame (1). Self-erecting marine platforms (7) can be used according to the invention in deeper water at sea.

Description

Beschreibung description
Grundrahmen für eine selbstaufstellende Meeresplattform Die Erfindung betrifft einen Grundrahmen für eine selbstaufstellende Meeresplattform sowie ein Verfahren zum Aufstellen einer Meeresplattform. The invention relates to a base frame for a self-erecting marine platform and to a method for setting up a marine platform.
Eine selbstaufstellende Meeresplattform ist beispielsweise aus der EP 0 959 182 Bl bekannt. Dort ist eine selbstaufstel¬ lende Ölplattform beschrieben, welche ein auf dem Wasser schwimmendes Gehäuse oder mit anderen Worten ein Ponton mit einem im Wesentlichen rechteckigen Grundriss aufweist, das in seinen Eckbereichen teleskopartig nach unten ausfahrbare Stützsäulen aufweist. Die Meeresplattform wird im Trockendock hergestellt und nach Flutung des Trockendocks schwimmend von Schiffen zu ihrem Einsatzort geschleppt. Anschließend werden die teleskopartigen Stützsäulen nach unten zum Meeresboden hin ausgefahren und dort fest verankert. Dabei werden die Stützsäulen so weit ausgefahren, dass sich die Meeresplatt¬ form aus dem Wasser hebt und mit der erforderlichen Sicherheitshöhe über der Wasseroberfläche gehalten wird. Zur Erhö¬ hung der Stabilität der Meeresplattform sind die nach unten ausfahrbaren Füße an ihrem unteren Ende mit Verstärkungen ausgerüstet. Ein Nachteil selbstaufstellender Meeresplattformen besteht darin, dass die maximale Meerestiefe, bis zu der diese noch aufgestellt werden können auf derzeit 45 m be¬ grenzt ist. Aufgabe der Erfindung ist es daher, eine Möglichkeit bereit¬ zustellen, mit welcher selbstaufstellende Meeresplattformen auch bei größeren Meerestiefen eingesetzt werden können. Die Erfindung löst diese Aufgabe durch einen Grundrahmen für eine selbstaufstellende Meeresplattform, wobei der Grundrahmen Ankermittel zum Verankern des Grundrahmens am Meeresgrund und ein Fundamentgerüst aufweist, das fest mit den Ankermit- teln verbunden ist, wobei das Fundamentgerüst Abstützbereiche zum Abstützen der Meeresplattform aufweist. A self-erecting marine platform is known, for example, from EP 0 959 182 B1. There is described a selbstaufstel ¬ ing oil platform, which has a floating on the water housing or in other words a pontoon with a substantially rectangular plan, which has telescopically downwardly extendable support columns in its corners. The sea platform is made in dry dock and, after flooding the dry dock, is floated floating from ships to their place of work. Subsequently, the telescopic support columns are extended down to the seabed and anchored there. In this case, the support columns are extended so far that the Meeresplatt ¬ form lifts out of the water and is held with the required safety height above the water surface. To raised stabili ¬ hung the stability of the marine platform the extendable down feet at their lower ends are provided with reinforcements. A disadvantage even Fielding sea platforms is that the maximum sea depth to which they can be placed is be ¬ limited to currently 45 m. The object of the invention is therefore to provide a possibility ¬ with which self-erecting marine platforms can be used even at greater depths of the sea. The invention achieves this object by a base frame for a self-erecting marine platform, wherein the base frame anchoring means for anchoring the base frame on the seabed and a foundation scaffold, which is fixedly connected to the anchoring Means, the foundation scaffold having support areas for supporting the marine platform.
Die Erfindung löst diese Aufgabe ferner durch ein Verfahren zum Aufstellen einer Meeresplattform, bei dem ein Grundrahmen unterhalb der Meeresoberfläche fest am Meeresboden verankert, eine selbstaufstellende Meeresplattform auf dem Grundrahmen abgestützt und anschließend der Grundrahmen fest mit der selbstaufstellenden Meeresplattform verbunden wird. Erfindungsgemäß wird die selbstaufstellende Meeresplattform nicht mehr wie beim Stand der Technik mit ihren ausfahrbaren Stützfüßen direkt am Meeresboden verankert. Vielmehr kommt ein Grundrahmen zum Einsatz, der mit seinen Ankermitteln am Meeresboden fest verankert wird. Die selbstaufstellende Mee- resplattform wird anschließend auf den Grundrahmen aufge¬ setzt. Dabei weist der Grundrahmen eine Höhe auf, die ausrei¬ chend ist, um die Meeresplattform bei der jeweiligen Meerestiefe nach dem Ausfahren ihrer Stützfüße ausreichend hoch über der Meeresoberfläche zu halten. Der Grundrahmen ist so- mit zum Aufstellen einer selbstaufstellenden Meeresplattform vorgesehen, die als solche dem Fachmann beispielsweise aus der EP 0 959 182 Bl bekannt ist. Die selbstaufstellende Mee¬ resplattform weist hydraulisch oder pneumatisch ausfahrbare Stützsäulen auf, mit denen sich die selbstaufstellende Mee- resplattform auf den Abstützbereichen des Fundamentgerüsts des Grundrahmens abstützt. Nach dem Kontaktieren der Abstützbereiche wird der Grundrahmen fest mit den Stützsäulen der selbstaufstellenden Meeresplattform verbunden. Gemäß einer bevorzugten Ausgestaltung weist der Grundrahmen Kabelführungsmittel auf, die zum Führen von Unterwasserkabeln vom Meeresgrund zur Meeresplattform hin eingerichtet sind. Gemäß dieser vorteilhaften Weiterentwicklung der Erfindung kann die Meeresplattform, die beispielsweise elektrische Bau¬ teile zum Umspannen einer elektrischen Wechsel- oder Gleichspannung aufweist, unabhängig von den Unterwasserkabeln und somit an Land gebaut und auf ihre elektrischen Eigenschaften und Spannungsfestigkeiten hin überprüft werden. Die so kom- plett fertig gestellte und geprüfte Meeresplattform wird an¬ schließend auf dem Wasser schwimmend zum Grundrahmen ge¬ schleppt und auf diesem aufgestellt. Anschließend können die elektronischen Komponenten mit den bereits aus dem Wasser geführten Unterseekabeln verbunden werden. Dabei sind die Un- terseekabel bereits fest an den Kabelführungsmitteln montiert. Auf diese Weise ist auch das Aufstellen der Meeres¬ plattform vereinfacht. Die elektrischen Komponenten der selbstaufstellenden Meeresplattform sind beispielsweise The invention solves this problem further by a method for setting up a marine platform, in which a base frame firmly anchored below the sea surface on the seabed, a self-erecting marine platform supported on the base frame and then the base frame is firmly connected to the self-erecting marine platform. According to the self-erecting marine platform is no longer anchored as in the prior art with their extendable support feet directly on the seabed. Rather, a base frame is used, which is firmly anchored with its anchoring means on the seabed. The selbstaufstellende marine resplattform is subsequently to the base frame is ¬. In this case, the base frame to a height which is suffi ¬ cient to keep the sea platform at the respective depth of the sea after the extension of their support feet sufficiently high above the sea surface. The base frame is thus provided for setting up a self-erecting marine platform, which as such is known to a person skilled in the art, for example, from EP 0 959 182 B1. The self-erecting Mee ¬ resplattform has hydraulically or pneumatically extendable support columns with which the self-erecting marine platform is supported on the support areas of the foundation framework of the base frame. After contacting the support areas of the base frame is firmly connected to the support columns of the self-erecting marine platform. According to a preferred embodiment, the base frame cable management means, which are adapted for guiding underwater cables from the seabed to the sea platform. According to this advantageous development of the invention, the marine platform, which has, for example electrical construction ¬ parts for recirculating an electrical AC or DC voltage, regardless of the submarine cables and thus built on land and checked for their electrical properties and withstand voltages. The so com- pletely finished and tested offshore platform is at ¬ closing floating to the base frame ge ¬ drags on the water and placed on this. Subsequently, the electronic components can be connected to the submarine cables that are already out of the water. The subsea cables are already firmly attached to the cable management system. In this way, the erection of the sea ¬ platform is simplified. The electrical components of the self-erecting marine platform are, for example
Transformatoren, Umrichter, Schaltanlagen, Filtermittel und dergleichen, wobei die Transformatoren für ein Umspannen der Spannung von wenigen 10 Kilovolt bis zu einigen hundert kV eingerichtet sind. Transformers, converters, switchgear, filter means and the like, wherein the transformers are arranged for a voltage of a few tens of kilovolts to a few hundred kV.
Zweckmäßigerweise sind die Kabelführungsmittel fest mit dem Fundamentgerüst verbunden. Bei einer Variante der Erfindung sind die Kabelführungsmittel als innen hohler Kabelführungs¬ turm ausgestaltet. Advantageously, the cable guide means are firmly connected to the foundation scaffold. In a variant of the invention, the cable guide means are designed as a hollow cable management tower ¬ inside.
Der Kabelführungsturm weist zweckmäßigerweise eine solche Hö- he auf, dass sein aus dem Wasser aufragendes freies Ende im installierten Zustand auf der Höhe eines Gehäuses oder Pon¬ tons der fertig installierten Meeresplattform angeordnet ist. Gemäß dieser vorteilhaften Weiterentwicklung wird der Grundrahmen an Land mit einem Kabelführungsturm ausgerüstet. An- schließend wird der Grundrahmen zu seiner Einsatzstelle, bei¬ spielsweise mit Hilfe eines Schiffes, transportiert und am Meeresboden verankert. Anschließend werden die Unterwasserka¬ bel durch den Kabelführungsturm bis zu seinem freien Ende ge- führt. Schließlich wird die selbstaufstellende Meeresplatt¬ form auf den Grundrahmen aufgesetzt und die elektrischen Bauteile der Meeresplattform an die Unterwasserkabel angeschlos¬ sen . Gemäß einer bevorzugten Ausgestaltung sind die Kabelführungsmittel mit einer Schnittstelle ausgerüstet, an denen die freien Enden der Unterwasserkabel befestigt sind. Die Kabel der Meeresplattform können anschließend ebenfalls an die Schnittstelle angeschlossen werden. The cable guide tower expediently has such a height that its free end protruding from the water is arranged in the installed state at the height of a housing or pon ¬ tons of the fully installed marine platform. According to this advantageous development of the base frame is equipped on land with a cable guide tower. At- is closing the base frame to its deployment site in ¬ play, transported with the aid of a ship and anchored to the sea floor. Subsequently, the underwater cages are led through the cable guide tower to its free end. Finally, the selbstaufstellende marine Platt ¬ form is placed on the base frame and the electrical components of the marine platform to the underwater cable is Schlos ¬ sen. According to a preferred embodiment, the cable guide means are equipped with an interface to which the free ends of the underwater cables are attached. The cables of the marine platform can then also be connected to the interface.
Zweckmäßigerweise ist der Grundrahmen mit Arretierungsmitteln zum Verankern der selbstaufstellenden Meeresplattform ausgerüstet. Die Arretierungsmittel ermöglichen eine feste solide Verbindung zwischen Meeresplattform und Grundrahmen. Conveniently, the base frame is equipped with locking means for anchoring the self-erecting marine platform. The locking means allow a solid solid connection between the sea platform and the base frame.
Weitere Ausgestaltungen und Vorteile der Erfindung sind Gegenstand von Ausführungsbeispielen der Erfindung mit Bezug auf die Figuren der Zeichnung, wobei gleiche Bezugszeichen auf gleich wirkende Bauteile verweisen und wobei Further embodiments and advantages of the invention are the subject of embodiments of the invention with reference to the figures of the drawing, wherein like reference numerals refer to like-acting components and wherein
Figur 1 ein erstes Ausführungsbeispiel des erfindungs¬ gemäßen Grundrahmens schematisch und Figure 1 shows a first embodiment of the inventive ¬ basic frame schematically and
Figur 2 weiteres Ausführungsbeispiel des erfin Figure 2 further embodiment of the inventions
dungsgemäßen Grundrahmens schematisch verdeutlichen .  schematically illustrate the basic frame according to the invention.
Figur 1 zeigt ein Ausführungsbeispiel des erfindungsgemäßen Grundrahmens 1, der fest an einem Meeresboden 2 verankert ist. Hierzu weist der Grundrahmen 1 Arretierungsmittel in Form von Ankerfüßen 3 auf, die fest mit einem Fundamentgerüst 4 verbunden sind. Das Fundamentgerüst 4 weist parallel zum Meeresboden ausgerichteten Abstützbereichen 5 ausgestattet, auf denen Tragsäulen 6 einer selbstaufstellenden Meeresplattform 7 abgestützt sind. Die selbstaufstellende Meeresplatt¬ form 7 weist neben den Tragsäulen 6 noch ein Gehäuse oder Ponton 8 auf, in dem figürlich nicht dargestellte Komponenten einer Umspannstation zum Umspannen einer Mittelspannung in eine Hochspannung untergebracht sind. Über figürlich nicht dargestellte Verbindungsmittel sind die Tragsäulen 6 der Mee¬ resplattform 7 fest mit dem Grundrahmen 1 verbunden. Ferner ist in Figur 1 schematisch die Meeresoberfläche 9 sowie die Meerestiefe T sowie die Höhe H schematisch verdeutlicht, mit welcher das Ponton 8 der selbstaufstellenden Meeresplattform 7 über der Meeresoberfläche 9 gehalten wird. In dem gezeigten Ausführungsbeispiel beträgt die Wassertiefe T etwa 80 Meter. Figure 1 shows an embodiment of the base frame 1 according to the invention, which firmly anchors to a seabed 2 is. For this purpose, the base frame 1 locking means in the form of anchor feet 3, which are fixedly connected to a foundation scaffold 4. The foundation scaffold 4 has parallel to the seabed aligned support areas 5, on which support columns 6 a self-erecting marine platform 7 are supported. The self-erecting Meeresplatt ¬ form 7, in addition to the support columns 6 still a housing or pontoon 8, are housed in the figuratively not shown components of a substation for transposing a medium voltage in a high voltage. About figuratively not shown connecting means, the support columns 6 Mee ¬ resplattform 7 are firmly connected to the base frame 1. Furthermore, the sea surface 9 and the sea depth T as well as the height H are illustrated schematically schematically in FIG. 1, with which the pontoon 8 of the self-erecting marine platform 7 is held above the sea surface 9. In the embodiment shown, the water depth T is about 80 meters.
Mit Hilfe des Grundrahmens 1 ist es möglich, selbstaufstel- lende Meeresplattformen 7 auch bei Meerestiefen T einzusetzen, die größer sind als 45 m sind. Hierzu wird zunächst der Grundrahmen 1 zu der Stelle transportiert, an dem die Meeres¬ plattform 7 aufgestellt werden soll. Zunächst wird der Grund¬ rahmen 1 fest am Meeresboden 2 durch die Ankermittel 3 veran- kert. Anschließend wird die selbstaufstellende Meeresplatt¬ form 7 mit ihrem schwimmenden Ponton 8 zu dem Grundrahmen 1 geschleppt und genau über diesem positioniert, so dass die Tragsäulen 6 direkt oberhalb der Abstützbereiche 5 angeordnet sind. Anschließend werden die Tragsäulen 6 über nicht darge- stellte Hydraulikmittel zum Grundrahmen 1 hin ausgefahren, bis sich das schwimmende Ponton 8 aus dem Wasser heraus er¬ hebt und mit der Höhe H von beispielsweise 13 m über der Mee¬ resoberfläche 9 gehalten wird. Dabei wird die Meeresplattform 7 fest mit dem Grundrahmen 1 über die nicht gezeigten Verbindungsmittel verbunden. With the aid of the basic frame 1 it is possible to use self-erecting sea platforms 7 even at sea depths T which are larger than 45 m. For this purpose, the base frame 1 is first transported to the place where the sea ¬ platform is to be installed. 7 First, the reason ¬ frame 1 is firmly anchored by the anchoring means 3 at the seabed. 2 Subsequently, the self-erecting Meeresplatt ¬ form 7 is towed with its floating pontoon 8 to the base frame 1 and positioned exactly above this, so that the support columns 6 are arranged directly above the support areas 5. Subsequently, the support columns are extended 6 via not presented ones shown, hydraulic means to the base frame 1 side until the floating pontoon 8 out of the water he lifts ¬ and is held with the height H of, for example, 13 m above the Mee ¬ resoberfläche. 9 This is the sea platform 7 firmly connected to the base frame 1 via the connecting means, not shown.
Figur 2 zeigt ein weiteres Ausführungsbeispiel des erfin- dungsgemäßen Grundrahmens 1, der in diesem Fall mit einem Kabelführungsturm 10 ausgerüstet ist, der sich von dem Meeresboden 2 aus dem Wasser heraus bis zum Ponton 8 der selbstaufstellenden Meeresplattform 7 erstreckt. Der Kabelführungsturm 10 ist über Verbindungsmittel 11 fest an dem Fundamentgerüst 14 des Grundrahmens 1 angeschweißt. FIG. 2 shows a further embodiment of the base frame 1 according to the invention, which in this case is equipped with a cable guide tower 10 which extends from the seabed 2 out of the water to the pontoon 8 of the self-erecting marine platform 7. The cable guide tower 10 is welded by connecting means 11 fixed to the foundation frame 14 of the base frame 1.
Unterwasserkabel 12 sind in den Kabelführungsturm 10 von unten eingeführt und erstrecken sich bis zum oberen freien Ende des Kabelführungsturms 10, das auf der Höhe des Pontons 8 der Meeresplattform 7 liegt. Aus dem Kabelführungsturm 10 können nach Aufstellen der Meeresplattform 7 die Unterwasserkabel auf einfache Art und Weise mit den Komponenten der Meeres¬ plattform 7 verbunden werden. Somit kann die Meeresplattform 7 unabhängig vom Grundrahmen 1 gefertigt und hinsichtlich ih- rer elektronischen Komponenten, wie Transformatoren, Schalter oder dergleichen, geprüft werden. Underwater cables 12 are inserted into the cable management tower 10 from below and extend to the upper free end of the cable management tower 10, which is located at the level of the pontoon 8 of the sea platform 7. The underwater cable in a simple manner with the components of the marine platform ¬ 7 7 can be connected to up the offshore platform from the cable guide tower 10th Thus, the marine platform 7 can be manufactured independently of the base frame 1 and tested for its electronic components, such as transformers, switches or the like.
In Figur 2 ist ferner erkennbar, dass die Ankermittel 3 als Fundamentsäulen ausgebildet sind, deren freies Ende sich tief in den Meeresboden 2 hinein erstreckt. Oberhalb des Meeresbo¬ dens 2 ist jede Fundamentsäule Teil des Fundamentgerüsts 4. It can also be seen in FIG. 2 that the anchor means 3 are designed as foundation pillars whose free end extends deep into the seabed 2. Above the seabed 2, each foundation pillar is part of the foundation scaffold 4.
Das Gehäuse oder schwimmbare Ponton 8 der Meeresplattform 7 weist mehrere Stockwerke 13 auf, in denen die elektronischen Komponenten untergebracht sind. Auf dem Ponton 8 befindet sich ein Hebekran 14 sowie ein Hubschrauberlandeplatz 15. The housing or floating pontoon 8 of the marine platform 7 has a plurality of floors 13, in which the electronic components are housed. On the pontoon 8 is a lifting crane 14 and a helipad 15.

Claims

Patentansprüche claims
1. Grundrahmen (1) für eine selbstaufstellende Meeresplatt¬ form (7) mit Ankermitteln (3) zum Verankern des Grundrahmens (1) am Meeresgrund und einem Fundamentgerüst (4), das fest mit den Ankermitteln (3) verbundenen ist, wobei das Fundamentgerüst (4) Abstützbereiche (5) zum Abstützen der Meeres¬ plattform (7) aufweist. 1. Basic frame (1) for a selbstaufstellende marine Platt ¬ form (7) with anchor means (3) for anchoring the base frame (1) on the seabed and a foundation structure (4) which is fixedly connected to the anchor means (3), wherein the foundation framework (4) having support portions for supporting the sea ¬ platform (7) (5).
2. Grundrahmen (1) nach Anspruch 1, 2. base frame (1) according to claim 1,
g e k e n n z e i c h n e t d u r c h marked by
Kabelführungsmittel (10), die zum Führen von Unterwasserka¬ beln (12) vom Meeresbogen (2) zu einem Ponton (8) der Meeresplattform (6) eingerichtet sind. Cable guide means (10) for guiding Unterwasserka ¬ beln (12) from the sea sheet (2) to a pontoon (8) of the marine platform (6) are arranged.
3. Grundrahmen (1) nach Anspruch 2, 3. base frame (1) according to claim 2,
d a d u r c h g e k e n n z e i c h n e t , dass d a d u r c h e c e n c i n e s that
die Kabelführungsmittel (10) fest mit dem Fundamentgerüst (4) verbunden sind. the cable guide means (10) are fixedly connected to the foundation scaffold (4).
4. Grundrahmen (1) nach Anspruch 2 oder 3, 4. base frame (1) according to claim 2 or 3,
d a d u r c h g e k e n n z e i c h n e t , dass d a d u r c h e c e n c i n e s that
Kabelführungsmittel als innen hohler Kabelführungsturm (10) ausgestaltet sind. Cable guide means are designed as inside hollow cable guide tower (10).
5. Grundrahmen (1) nach Anspruch 4, 5. base frame (1) according to claim 4,
d a d u r c h g e k e n n z e i c h n e t , dass d a d u r c h e c e n c i n e s that
der Kabelführungsturm (10) eine solche Höhe aufweist, dass sein aus dem Wasser aufragendes freies Ende auf der Höhe ei- nes Pontons (8) der installierten Meeresplattform (7) angeordnet ist. the cable guide tower (10) has a height such that its free end projecting from the water is arranged at the height of a pontoon (8) of the installed marine platform (7).
6. Grundrahmen (1) nach einem der Ansprüche 2 bis 5, d a d u r c h g e k e n n z e i c h n e t , dass 6. base frame (1) according to one of claims 2 to 5, characterized in that
die Kabelführungsmittel (10) eine mit den Unterwasserkabeln (12) verbindbare Schnittstelle aufweisen, die zum Anschluss von Kabeln der Meersplattform (7) eingerichtet ist. the cable guide means (10) comprise an interface connectable to the submarine cables (12) and adapted to connect cables of the sea platform (7).
7. Grundrahmen (1) nach einem der vorhergehenden Ansprüche, g e k e n n z e i c h n e t d u r c h 7. Basic frame (1) according to any one of the preceding claims, e e c e n e c e s t d u r c h
Verbindungsmittel zum festen Verbinden mit der selbstaufstel¬ lenden Meeresplattform (7). Connecting means for firm connection with the selbstaufstel ¬ sende marine platform (7).
8. Verfahren zum Aufstellen einer Meeresplattform (7), bei dem ein Grundrahmen (1) unterhalb der Meeresoberfläche (9) fest am Meeresboden (2) verankert, eine selbstaufstellende Meeresplattform (7) auf dem Grundrahmen (1) abgestützt und anschließend der Grundrahmen (1) fest mit der selbstaufstel¬ lendes Meeresplattform (7) verbunden wird. 8. A method for setting up a marine platform (7), wherein a base frame (1) underneath the sea surface (9) firmly anchored to the seabed (2), a self-erecting marine platform (7) supported on the base frame (1) and then the base frame ( 1) is firmly connected to the selbstaufstel ¬ lendes sea platform (7).
9. Verfahren nach Anspruch 8, 9. The method according to claim 8,
d a d u r c h g e k e n n z e i c h n e t , dass d a d u r c h e c e n c i n e s that
die Meeresplattform (7) schwimmend über dem Grundrahmen (1) positioniert wird und anschließend Tragsäulen (6) der schwim¬ menden Meeresplattform (7) nach unten zum Grundrahmen (1) hin ausgefahren werden. the marine platform (7) floating over the base frame (1) is positioned, and then the support columns (6) of the Swim ¬ Menden offshore platform (7) are extended down toward the base frame (1).
10. Verfahren nach Anspruch 8 oder 9, 10. The method according to claim 8 or 9,
d a d u r c h g e k e n n z e i c h n e t , dass d a d u r c h e c e n c i n e s that
nach der Verankerung des Grundrahmens (1) am Meeresboden (2) Unterseekabel (12) vom Meeresboden (2) durch an dem Grundrahmen (1) befestigte Kabelführungsmittel (10) geführt und an diesen befestigt werden. after anchoring the base frame (1) to the seabed (2), submarine cables (12) are guided from and fixed to the seabed (2) by cable guide means (10) attached to the base frame (1).
11. Verfahren nach Anspruch 10, 11. The method according to claim 10,
d a d u r c h g e k e n n z e i c h n e t , dass Komponenten der Meeresplattform (7) mit den Unterwasserkabeln (12) verbunden werden. characterized in that Components of the marine platform (7) with the submarine cables (12) are connected.
PCT/EP2011/056598 2010-05-04 2011-04-27 Base frame for a self-erecting marine platform WO2011138195A1 (en)

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EP11718692A EP2567031A1 (en) 2010-05-04 2011-04-27 Base frame for a self-erecting marine platform
CN2011800224562A CN102869836A (en) 2010-05-04 2011-04-27 Base frame for a self-erecting marine platform
US13/696,119 US20130202361A1 (en) 2010-05-04 2011-04-27 Base frame for a self-erecting marine platform

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DE102010019908A DE102010019908A1 (en) 2010-05-04 2010-05-04 Basic framework for a self-erecting marine platform
DE102010019908.7 2010-05-04

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EP2567031A1 (en) 2013-03-13
DE102010019908A1 (en) 2011-11-10

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