DK201070406A - Mobile offshore platform - Google Patents

Mobile offshore platform Download PDF

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Publication number
DK201070406A
DK201070406A DKPA201070406A DKPA201070406A DK201070406A DK 201070406 A DK201070406 A DK 201070406A DK PA201070406 A DKPA201070406 A DK PA201070406A DK PA201070406 A DKPA201070406 A DK PA201070406A DK 201070406 A DK201070406 A DK 201070406A
Authority
DK
Denmark
Prior art keywords
column
cone
offshore platform
foot structure
platform
Prior art date
Application number
DKPA201070406A
Other languages
Danish (da)
Inventor
Ravndal Ola
Gudmestad Ove Tobias
Breivik Kaare
Original Assignee
Statoil 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 Statoil Asa filed Critical Statoil Asa
Publication of DK201070406A publication Critical patent/DK201070406A/en

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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
    • E02B17/0017—Means for protecting offshore constructions
    • E02B17/0021—Means for protecting offshore constructions against ice-loads
    • 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
    • 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
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
    • 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
    • E02B2017/0065—Monopile 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0069—Gravity structures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

Den mobile offshore-platform (1) omfatter en flydbar fodstruktur (3), der er indrettet til at stå på havbunden (53), en enkelt, lodret forløbende, rørformet søjle (5), der ved sin nedre ende er fastgjort til fodstrukturen (3), og en jack up-dækenhed (7), som gennem sig har en åbning til passage af søjlen og er bevægelig langs søjlen (5) ved hjælp af en jack-up-mekanisme (41). Et flydbart, ringformet kegleelement (21), som har en i det væsentlige keglestubformet øvre flade (23), og en i det væsentlige flad eller omvendt kegleformet nedre flade, omgiver søjlen (5) og er bevægelig langs søjlen (5) i forhold til dækenheden (7) mellem en nedre position, hvori kegleelementet (21) hviler på fodstrukturen (5), og en hævet position fjernt fra fodstrukturen (3). Under isfrie miljøbetingelser er kegleelementet anbragt i sin nedre position for at mindske bølgefremkaldte kræfter. Hvis havet er dækket at is, hæves kegleelementet (2) til en position ved niveauet (37) af havoverfladen for at løfte og bryde drivis. Under transit af platformen (1) sænkes det kegleformede element (21) ned på fodstrukturen (3) for at øge vandplanområdet og dermed plafformens (1) flydestabilitet. Platformen (1) flyder som følge af fodstrukturens (3) opdrift, søjlen (5) og kegleelementet (21) alene uden flydeassistance fra dækenheden (7).The mobile offshore platform (1) comprises a floatable foot structure (3) adapted to stand on the sea floor (53), a single vertical extending tubular column (5) attached at its lower end to the foot structure ( 3), and a jack-up cover unit (7), which through it has an opening for passage of the column and is movable along the column (5) by a jack-up mechanism (41). A flowable annular cone element (21) having a substantially cone-shaped upper surface (23) and a substantially flat or inverted cone-shaped lower surface surrounds the column (5) and is movable along the column (5) relative to the column (5). the cover unit (7) between a lower position in which the cone element (21) rests on the foot structure (5) and a raised position distant from the foot structure (3). Under ice-free environmental conditions, the cone element is placed in its lower position to reduce wave-induced forces. If the sea is covered with ice, the cone element (2) is raised to a position at the level (37) of the sea surface to lift and break drift ice. During transit of the platform (1), the cone-shaped element (21) is lowered onto the foot structure (3) to increase the water plane area and thus the flow stability of the platform (1). The platform (1) flows as a result of the buoyancy of the foot structure (3), the column (5) and the cone element (21) alone without flow assistance from the cover unit (7).

Claims (11)

Paté n t k r a vPaté n t k r a v 1, Mobil øffshore ~ptalform, der omfatte en fipibar fodsttetur 3 der er Indrettet til at sti på havbunden (53)s en enkelt lodret fødabende rarfermøl: aapa (5), der ved aln nedre ende ar fastgjort i! fødstrytøran (3) og en jack-up-dteenhod (7), som gennem sig har en åbning til passage af søjlen (5) og or bevægelig langs sojen (5) ved tiJæJjp af mi jaek-up-mekanisme (41) et dbart angtermet kagleelsment (21), aom hor an i dat wsørilige tegfestybfarmet øvrs fede (23), twor kagleslsmantei (21) omslutter søjlen og er hevasgallg langs safari (S) i forhold li dækøRteden (?) mellem en nedre position, hvori tegfeetemsntet (211 feller ;på fodatrykturen (3), og an towt petition fjernt. fra fodstrykforaa P),1, Mobile offshore pedal form comprising a fipibar footrest 3 adapted to path on the seabed (53) so as a single vertical feed opening ridge moth: aapa (5) fixed at the lower end! a feeding strut (3) and a jack-up head (7), which through it has an opening for passage of the column (5) and movable along the sock (5) by means of a jack-up mechanism (41) angled sleeve clasp (21), in the upper part of the oblique brick-stitched upper grease (23), two kegleslsmantei (21) encloses the column and is hevasgallg along the safari (S) in relation to the deck (?) between a lower position in which the tefet tems (21) traps; on the foot structure (3), and an towt petition removed from the footprint fora P), 2, Offdl'we-ptatform Ifølge krav 1, hvor dteanfteen (?) som sådan ar a« iåa flader dssksnhed, 3, øffofwegfeiecm ifølge at af kravene 1 aller 2, hver teatfekforen (3) har en lide, der omfatter en centml portiers (27), §om er Indreilet· til at deraf, eg an s det væsentlige ikeglesiybformat portion (20), der omslutter don centrale potior* (2?)t hvor kegleølønæntet (21) l: gjn nedm position qq txfstrukfyrsn |3) til sammen har an hvælvet vm kontur.2, Offdl'we-ptatform According to claim 1, wherein the dteanfteen (?) As such is a surface unit, 3, oofofwegfeiecm according to that of the claims 1 very 2, each teatfekforen (3) has a body comprising a centml porter. (27), which is Indreiled · to thence, eg, the substantially non-conical shaped portion (20) enclosing the central potion * (2?) Where the cone-shaped (21) l: lower down position qq txfstrukfyrsn | 3) together we have an arched world contour. 4, Offshore platform ifølge krav 3» hvor de centrale portioner C2?| af den øvre iacfø af fadstmkfyren (3) geometrisk passer il den nedre flade fif) af 6, :DffahD:re"ptetfomi ifølge krav 4, hvor den nedre lade (25) af ke^teefemantet ar i det væsentlig® flad eller omvendt kegfeformst I forhold III den kéilasfehfermede owe fode {23},4, Offshore platform according to claim 3 'wherein the central portions C2? | of the upper liner of the barrel fireplace (3) geometrically fits into the lower flat bar (6) of Daffodia according to claim 4, wherein the lower barrel (25) of the kitchen surface is substantially® flat or inverted cone shaped In relation III the kéilasfehfermed owe foot {23}, 5, Offshore platform ifølge et hvitet som helst af kravene 3 1 5-, hvor ks^eeleresrÉet pi) har en teglevlnkel, som er storm end en koglevføkfø af 7,Offshore platformIfølge et hvilket helst af kravene 1 1 Sf hvor kegleelemeoiét: {21 > og fodstrukturen (3) her en i det mindste flnærmeiaesvis! drfelæh ydrø omkredskonfur set I en lodret retning,5, Offshore platform according to any one of claims 3 1 5-, wherein the boilerplate pi) has a tile link which is stormier than a ball joint of 7, Offshore platform According to any of the claims 1 1 Sf where the cone element: {21 > and the foot structure (3) here at least several times! drfelæh outer red perimeter cone seen in a vertical direction, 8, Offshore platformIfølge at hvilket som helst: af kravene 1 ti 7* hvor fodetekføren {3} har en nedre gravtets-gryndiplade (S7), 9/Offshore platform et hvilket som heist af kravene 1 till 7 hvor søjlen (i) er on flpJher sofle, der omfatter an i^etemmeratraktyr (der kan oversvømme med vand og som strækker sig rundt langs omkredsen af spjlen (5).,8, Offshore platformAccording to any: of claims 1 to 7 * wherein the footer {3} has a lower gravity grating (S7), 9 / Offshore platform any of claims 1 to 7 where column (i) is on flpJher sofles, which include an in-tin tract (which can flood with water and extend around the circumference of the mirror (5).) 10, Offshore platform ifølge at hvilket søm hilsf af kraven 1 ti 9, hver frastrukturen {3} omtaler en (59), røn kan overvomed vend og som steakker randt ø søfen (i).10, Offshore platform according to which seam meets the collar 1 to 9, each of the structures {3} mentions one (59), which can overflow and which streaks to the edge of the lake (i). 11, Offshore platform ietgs krav i dier 10, Iwr fl^dsteamraBf^feMirsn (19,. 61) omfatte' et antal kamre (6¾ ssm kan ovwswrømass individuelt og er f&Rieft i omkrebsrofningsri, 12,Offshore platform Ifølge et hvltkøf som helst af kravene 1 fil 11 hvor sojlen (S) 5¾ fcdstruktyrisfi (3) Indeholder lagertanke (69t T1 %11, Offshore Platform Ietgs Requirements in Animal 10, Iwr FloodsteamraBf ^ feMirsn (19, 61) include a number of chambers (6¾sm can individually float mass and are available in recirculation system, 12, Offshore platform According to any of the requirements 1 file 11 where the column (S) 5¾ structure structure (3) Contains storage tanks (69t T1% 13, Offshore platform ifølge et hvilket som heftt tf kravene 1 il 1.2* hvor jtek-· yp^hteciEilimørt (41) omfatte si antal tetrat forkibende t&f^istasnger (43)s som er Matt omkring eg monteret pi stilet (¾ og drøv (4S)* som er13, Offshore platform according to any one of claims 1 to 1.2 *, wherein jtek-yp ^ hteciEilimörter (41) comprises s number of tetrat foreshortening & rails (43) which are matte around oak mounted in the stylus (¾ and rum ( 4S) * which is 14 Offshore platformifølge krav 11 hver tancfsfamgrtrng (43) er anbragt s fcrtsettede kanaler (47) i spflen (5), 15.Ftemgangsmåde til drift tf en mobil øWstere-plaiferni Ifølge et hvilet som helst af kfåvt« 1 fil 14:) hvor keyieetomaoiet (21) ynder bevægelse af platformen (1) under tenet ogfeller under stationær drift af platformen (1), under Isyandhainielssr, er anbragt med sin kegtesføbfomitde ovre flade (23) days! mm varførisvteijéf (37), metis dækénheden (7) ér anbragt et stykke over vandniveau (37)14 Offshore Platform According to Claim 11 Each tank assembly (43) is provided with dedicated channels (47) in the mirror (5), 15. Procedure for operation of a mobile oyster plate remote according to any rest of the cooler 1 file 14:) (21) The movement of the platform (1) during the tenet and also during stationary operation of the platform (1), under Isyandhainielssr, is arranged with its jaw-dropping front surface (23) days! mm shaft system (37), metis deck unit (7) placed slightly above water level (37) 16, Ftemgangsmåde ifølge krav 15, Nrør kepfætemsntei (21) ynder sfsftonær drift af iplattormssi (i), under isfri vandbeingeisieh er anbragt i sin nedre pcrsttag hvilende på fødstriåkten (3),16, The method of claim 15, wherein the ketfetemsntei (21) enjoys the sfftonary operation of the platform worm (i), under an ice-free water beetle housed in its lower crotch roof resting on the feed triathlon (3),
DKPA201070406A 2009-01-27 2010-09-24 Mobile offshore platform DK201070406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/000525 WO2010085970A1 (en) 2009-01-27 2009-01-27 Mobile offshore platform

Publications (1)

Publication Number Publication Date
DK201070406A true DK201070406A (en) 2010-09-24

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Application Number Title Priority Date Filing Date
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DK (1) DK201070406A (en)
WO (1) WO2010085970A1 (en)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
NL2005755C2 (en) 2010-11-25 2012-05-29 Cobus Beheer B V Floating marine structure.
CN103015387B (en) * 2011-09-23 2015-08-19 华锐风电科技(集团)股份有限公司 Protective device and marine brace table
RU2603421C1 (en) * 2015-10-13 2016-11-27 Акционерное общество "Центральное конструкторское бюро "Коралл" Off-shore self-elevating platform
US10352010B2 (en) * 2017-02-13 2019-07-16 Saudi Arabian Oil Company Self-installing offshore platform
CN107150770B (en) * 2017-05-26 2018-11-06 大连理工大学 A kind of ice resistant device suitable for shell spud leg self-elevating ocean platform
CN110040223A (en) * 2018-01-15 2019-07-23 中集海洋工程研究院有限公司 Iceproof semisubmersible platform
SG11202009003XA (en) 2018-03-14 2020-10-29 Yoshida Gumi Co Ltd Offshore work equipment and method for constructing thereof
CN110055960A (en) * 2019-05-24 2019-07-26 上海勘测设计研究院有限公司 Ice-breaking for offshore wind farm pile type foundation disappear wave combination unit
US11685486B2 (en) 2021-01-14 2023-06-27 Saudi Arabian Oil Company Resilient bumper and bumper system
NL2031193B1 (en) 2022-03-09 2023-09-18 Deawoo Eng & Construction Co Ltd Marine structure and method

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Publication number Priority date Publication date Assignee Title
DE2457536C3 (en) * 1974-12-03 1978-03-09 Philipp Holzmann Ag, 6000 Frankfurt Procedure for transporting and setting down an offshore platform on the sea bed and offshore platform
US4451174A (en) * 1983-02-07 1984-05-29 Global Marine Inc. Monopod jackup drilling system
US4627767A (en) * 1983-07-22 1986-12-09 Santa Fe International Corporation Mobile sea barge and platform
IT1230186B (en) * 1989-04-18 1991-10-18 Snam Progetti Marine oil prodn. platform or modular construction
UA13074U (en) * 2005-09-15 2006-03-15 Nat Academy Of Environmental A Appliance for protection of hydro-technical structure against ice effect

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WO2010085970A1 (en) 2010-08-05

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