DK201070011A - Floating platform and method for operation thereof - Google Patents

Floating platform and method for operation thereof Download PDF

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Publication number
DK201070011A
DK201070011A DKPA201070011A DKPA201070011A DK201070011A DK 201070011 A DK201070011 A DK 201070011A DK PA201070011 A DKPA201070011 A DK PA201070011A DK PA201070011 A DKPA201070011 A DK PA201070011A DK 201070011 A DK201070011 A DK 201070011A
Authority
DK
Denmark
Prior art keywords
platform
water level
hull
platform according
section
Prior art date
Application number
DKPA201070011A
Other languages
Danish (da)
Inventor
Syvertsen Kaare
Aarsnes Jan Vidar
Sondstad Alf Reidar
Original Assignee
Sevan Marine Asa
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 Sevan Marine Asa filed Critical Sevan Marine Asa
Publication of DK201070011A publication Critical patent/DK201070011A/en
Application granted granted Critical
Publication of DK179027B1 publication Critical patent/DK179027B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2211/00—Applications
    • B63B2211/06—Operation in ice-infested waters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2241/00—Design characteristics
    • B63B2241/02—Design characterised by particular shapes
    • B63B2241/04—Design characterised by particular shapes by particular cross sections
    • B63B2241/06—Design characterised by particular shapes by particular cross sections circular

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Piles And Underground Anchors (AREA)

Claims (7)

1. Flydende platform til boring, produktion, oplagring eller andre anvendelser, hvilken platform er særligt egnet til isfyldte farvande og omfatter: et skrog med ydre sidevægge, hvor skroget primært er symmetrisk omkring en vertikal midterakse i platformen og i en nedre ende er lukket af en bund, et dæk i den øvre ende af skroget der er udstyret hensigtsmæssigt i overensstemmelse med den tilsigtede anvendelse, platformens dybgang er betydeligt mindre end platformens diameter, og opdriftscentret af den nedsænkede del af platformen er placeret lavere end platformens tyngdepunkt, kendetegnet ved at den hovedsageligt symmetriske yderside af skroget omfatter mindst tre sektioner set fra skrogets øvre ende: en vandniveausektion (5) med en diameter der formindskes i nedadgående retning langs midteraksen, i hvilken vandniveausektion vandniveauet er lokaliseret under drift i isfyldte farvande, en mellemsektion (6) med cylinderform og en undersektion (7) med en diameter der forøges i nedadgående retning langs midteraksen.A floating platform for drilling, production, storage or other applications, which platform is particularly suitable for ice-filled waters and comprises: a hull with outer side walls, the hull being primarily symmetrical about a vertical center axis of the platform and at a lower end closed by a bottom, a tire at the upper end of the hull which is suitably fitted in accordance with its intended use, the depth of the platform is considerably smaller than the diameter of the platform, and the buoyancy center of the submerged portion of the platform is located lower than the center of gravity, characterized in that it substantially symmetrical exterior of the hull comprises at least three sections seen from the upper end of the hull: a water level section (5) with a downwardly decreasing diameter along the central axis, in which water level section the water level is located during operation in ice-filled waters, an intermediate section (6) of cylindrical shape and a sub-section (7) having a diameter extending is given in a downward direction along the center axis. 2. Platform ifølge krav 1, kendetegnet ved forholdet mellem platformens dybgang og diameteren ved vandniveauet erca. 0,3.Platform according to claim 1, characterized by the relationship between the depth of the platform and the diameter at the water level erca. 0.3. 3. Platform ifølge krav 1, kendetegnet ved at vandniveausektionen (5) har en indadgående hældning i nedadgående retning på ca. 45°.Platform according to claim 1, characterized in that the water level section (5) has an inward downward inclination of approx. 45 °. 4. Platform ifølge krav 1, kendetegnet ved at undersektionen (7) har en udadgående hældning på ca. 45°, set i nedadgående retning.Platform according to claim 1, characterized in that the subsection (7) has an outward inclination of approx. 45 °, looking downwards. 5. Platform ifølge krav 1, kendetegnet ved at den omfatter et aftageligt element (forbindelseselement) (8) med iboende flydeevne og som strækker sig nedad, og som er koaksialt placeret i forhold til platformens vertikale midterakse og trukket ud fra den nedre kant af den ydre sidevæg til fastgørelse og/eller gennemføring af forankringsliner, kæder, stigrør og/eller kabler.Platform according to claim 1, characterized in that it comprises a detachable element (connecting element) (8) having an inherent flowability and extending downwardly, which is coaxially positioned with respect to the vertical center axis of the platform and drawn from the lower edge thereof. outer sidewall for attaching and / or conducting anchoring lines, chains, risers and / or cables. 6. Platform ifølge krav 5, kendetegnet ved at det aftagelige element der strækker sig nedad, strækker sig ca. 10 m under platformens bund før området til fastgørelse/gennemføring af stigrør og forankringsliner nås.Platform according to claim 5, characterized in that the removable element extending downwards extends approx. 10 m below the bottom of the platform before reaching the area for attachment / insertion of riser and anchoring lines. 7. Fremgangsmåde til drift i isfyldte farvande af den flydende platform ifølge et af kravene, kendetegnet ved at platformen er forsynet med ballast på en sådan måde at vandniveauet er lokaliseret i vandniveausektionen (5) ved drift af integrerede indretninger til ballast.Method for operating in ice-filled waters of the floating platform according to one of the claims, characterized in that the platform is provided with ballast in such a way that the water level is located in the water level section (5) by operating integrated ballast devices.
DKPA201070011A 2008-05-09 2010-01-11 Liquid platform and method of operation thereof DK179027B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20082189A NO336984B1 (en) 2008-05-09 2008-05-09 Liquid platform and method of operation thereof
PCT/NO2009/000177 WO2009136799A1 (en) 2008-05-09 2009-05-08 Floating platform and method for operation thereof

Publications (2)

Publication Number Publication Date
DK201070011A true DK201070011A (en) 2010-03-09
DK179027B1 DK179027B1 (en) 2017-09-04

Family

ID=41264743

Family Applications (1)

Application Number Title Priority Date Filing Date
DKPA201070011A DK179027B1 (en) 2008-05-09 2010-01-11 Liquid platform and method of operation thereof

Country Status (6)

Country Link
CN (1) CN102015436B (en)
CA (1) CA2723410C (en)
DK (1) DK179027B1 (en)
NO (1) NO336984B1 (en)
RU (1) RU2502629C2 (en)
WO (1) WO2009136799A1 (en)

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LT5806B (en) 2010-06-29 2012-02-27 Rimantas Varanauskas Energy free floating platform and its wheel system

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US9266587B1 (en) 2009-11-08 2016-02-23 Jurong Shipyard Pte Ltd. Floating vessel
US10093394B2 (en) 2009-11-08 2018-10-09 Jurong Shipyard Pte Ltd. Method for offshore floating petroleum production, storage and offloading with a buoyant structure
US9180941B1 (en) 2009-11-08 2015-11-10 Jurong Shipyard Pte Ltd. Method using a floatable offshore depot
RU2591780C2 (en) 2010-07-08 2016-07-20 Итрек Б.В. Semisubmersible floating base and operation method thereof
NO336206B1 (en) 2011-02-01 2015-06-15 Sevan Marine Asa Production unit with butchered hanging riser and with custom hull and moonpool
NO20110173A1 (en) * 2011-02-01 2012-08-02 Sevan Marine Asa Production unit suitable for use of dry valve trees
EP2741955B1 (en) 2011-08-09 2019-08-28 Jurong Shipyard Pte. Ltd. Stable offshore floating depot
CN103085946B (en) * 2012-10-15 2016-04-13 大连理工大学 Docking circular table Floating Production oil storage system
NO339535B1 (en) * 2013-01-11 2016-12-27 Moss Maritime As Floating unit and method for reducing stomping and rolling movements of a floating unit
GB2507370B (en) 2013-05-15 2014-10-15 Atkins Ltd Compact floating production, storage and offloading facility
US20150101522A1 (en) * 2013-10-15 2015-04-16 Adel H. Younan Arctic Rapid Disconnect and Reconnect Floating Driller
CN107249977B (en) * 2015-02-24 2022-08-09 裕廊船厂有限公司 Floating ship
RU2591110C1 (en) * 2015-03-02 2016-07-10 Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" Sea floating process platform for drilling and/or production and storage in ice conditions
GB2538275B (en) 2015-05-13 2018-01-31 Crondall Energy Consultants Ltd Floating production unit and method of installing a floating production unit
CN108995778A (en) * 2018-08-17 2018-12-14 招商局重工（江苏）有限公司 A kind of floating drilling platform being suitble in polar region ice formation and severe sea condition

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CA1042274A (en) * 1975-04-14 1978-11-14 Richard W. Slocum Mooring system for semisubmersible drilling platform
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LT5806B (en) 2010-06-29 2012-02-27 Rimantas Varanauskas Energy free floating platform and its wheel system

Also Published As

Publication number Publication date
NO336984B1 (en) 2015-12-07
NO20082189L (en) 2009-11-10
DK179027B1 (en) 2017-09-04
CN102015436A (en) 2011-04-13
RU2010150346A (en) 2012-06-20
CA2723410A1 (en) 2009-11-12
WO2009136799A1 (en) 2009-11-12
CN102015436B (en) 2015-10-21
RU2502629C2 (en) 2013-12-27
CA2723410C (en) 2015-04-14

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