US3605669A - Floating self-elevating platform - Google Patents

Floating self-elevating platform Download PDF

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Publication number
US3605669A
US3605669A US881315A US3605669DA US3605669A US 3605669 A US3605669 A US 3605669A US 881315 A US881315 A US 881315A US 3605669D A US3605669D A US 3605669DA US 3605669 A US3605669 A US 3605669A
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United States
Prior art keywords
columns
barge
platform
buoyancy
water
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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 - Lifetime
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US881315A
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English (en)
Inventor
Tsi V Yu
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Kerr McGee Corp
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Kerr McGee Corp
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    • 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 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/107—Semi-submersibles; Small waterline area multiple hull vessels and the like, e.g. SWATH
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/14—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently or having means for actively varying hull shape or configuration
    • B63B2001/145—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently or having means for actively varying hull shape or configuration having means for actively varying hull shape or configuration

Definitions

  • a conventional ship as a drilling vessel has certain advantages, particularly with regard to stability while relocating, and also with regard to mobility, as the ship type structure is much easier and faster to relocate than are other types of mobile drilling platforms. Also, because of the nature of their design, a ship type vessel can get through narrow channels and canals which will not handle other types of mobile drilling platforms. However, the ship type vessel has a serious drawback when used to support a drilling platform. This disad vantage is its large exposure to wave forces, combined with an inherently low radius of gyration. This disadvantage results in excessive roll during operation, and in some cases results in damage to drilling equipment.
  • a structure which combines the best features of the different prior art designs, and at the same time eliminates the undesirable features of existing designs.
  • the structure includes at least three elongated, buoyant stabilizing col umns movable vertically with respect to a working platform.
  • the working platform preferably comprises the 3,6fl5,669 Patented Sept. 20, 1971 top portion of a barge member having the general configuration of a ship, which barge also provides additional buoyancy and stability during relocation of the structure.
  • the stabilizing columns are fluid tight, at least throughout the portion that will be in contact with the body of water that the device is operating in, except that valved openings may be included to facilitate ballasting and deballasting of the columns using conventional means and techniques.
  • the stabilizing columns are vertically movable with respect to the barge or appendages thereof, and may be locked to the platform at one or more locations by any suitable means.
  • Guide means attached to the structure facilitate vertical movement of the columns relative to the platform.
  • means are provided to prevent rotation of the columns With respect to the platform, and stop means may also be provided near the tops of the columns to prevent them from falling completely through the platform.
  • the design of the present invention provides a stable structure without the necessity of additional stabilizing means such as ballast chambers or the cable-supported ballast mass required by prior art structures which utilize open-ended columns. It is only necessary, as described more completely in the aforementioned US. Pat. No. 3,246,476, to make the stabilizing columns of sufficient size, and locate them in a stabilizing pattern a sufficient distance from the center of the structure, to provide moments of inertia of the water plane areas of the structure of sufficient magnitudes to establish the metacenter of the structure above the center of gravity for every anticipated operating condition of the structure.
  • the above requirement is essential to the stability of the device because the center of gravity of the structure may be above the center of buoyancy during many of its operating conditions, and without adequate water plane areas located in a stabilizing pattern, the structure would be dangerously unstable.
  • the center of gravity of the structure is below the center of buoyancy, the size and location of the water plane areas is not critical, as the structure is then stable due to a pendulum effect.
  • FIG. 1 is a perspective view of a structure constructed in accordance with the present invention, the structure being illustrated in the operating condition.
  • FIG. 2 is a front elevational view of a structure constructed in accordance with the invention, the structure being shown in the towing or relocating condition.
  • FIG. 3 is a front elevational view of the structure shown in FIG. 2, the structure being shown with the barge floating and the columns lowered.
  • FIG. 4 is a front elevational view of the structure shown in FIG. 2, the structure being shown with the barge portion raised to just above the water level.
  • FIG. 5 is a front elevational view of the structure shown in FIG. 2, the structure being shown with the barge portion elevated to the operating level.
  • FIG. 6 is a front elevational view of another embodi ment of the invention showing the barge portion in the floating condition and part of the columns being carried above the water level.
  • FIG. 7 is a side elevational view showing a means for locking a column to the platform.
  • FIG. 8 is a front elevational view showing a means for moving a column relative to the barge portion of the structure.
  • the platform is elevated solely by means of deballasting the columns after it has been locked to the previously ballasted and lowered columns. It is not necessary that prior art jacking equipment or rack and pinion means capable of supporting and elevating the full weight of the barge be provided. However, as a matter of safety and convenience, it may be desirable to include means for restraining or controlling the movement of the columns With respect to the platform. Such means might, for example, be light weight jacking means similar in operation to the heavy duty types used to elevate platforms in conventional prior art jackup type rigs.
  • These light Weight jacking means need only be capable of providing enough restraint to movement of the columns relative to the platform to prevent undesired movement caused by wave action during the times that the columns are being raised or lowered relative to the platform.
  • the jacks may be used in conjunction with a notched rail or rows of openings in the columns.
  • the columns may be raised and lowered by conventional elevating devices such as heavy duty hydraulic jacking means or rack and pinion means.
  • elevating devices such as heavy duty hydraulic jacking means or rack and pinion means.
  • the inclusion of these elevating devices provides additional flexibility of operation, and when used in conjunction with ballasting and deballasting, permits the columns to be raised or lowered while maintaining the platform a fixed distance above the water level.
  • This is useful as a means of controlling the T011 period of the structure, which should always be different from the wave period to prevent undesirable amplification of roll.
  • the period of roll of the vessel may also be varied by adding ballast to or removing ballast from h barge itself. This changes the center of gravity of the structure and thereby varies the roll period of the vessel' It is obvious from the above discussion that the stabilizing columns must provide enough buoyancy to float the structure with the barge portion out of the water.
  • the structure is to be used for drilling of wells, appropriate drilling and auxiliary equipment is provided on the barge and platform portions of the structure. Also, living quarters, a heliport, storage facilities and other supporting equipment may be provided.
  • the design of the structure is such that it has a high order of stability during movement or relocation of the structure, which may be accomplished by towing, or by suitable self-propulsion means.
  • the barge and the stabilizing columns are preferably deballasted during relocation, with the result that the structure is partially supported by the buoyancy of the barge portion, and partially supported by the buoyancy of the columns, except that in one particular embodiment, to be described below, the structure may be floated by the barge portion alone during relocation.
  • the columns are ballasted, for example, by pumping sea water into the interior of the fluid tight columns. This causes the columns to sink through the openings in the barge or other appended structure affixed to the barge portion, and when the columns have settled to the desired level, they are locked into place. Subsequent deballasting of the columns causes the entire structure to rise as a unit. The columns provide enough buoyancy that the barge portion can be elevated sufficiently above the water level to be clear of normal wave action.
  • suitable anchoring means may be utilized to maintain the structure above a fixed point of the underlying seabed.
  • the structure may be maintained in position above a fixed point by suitable dynamic positioning systems.
  • a marine operation such as drilling or servicing a well
  • ballast is added to the columns, causing the entire device to begin to submerge.
  • the means locking the columns to the platform are released, and deballasting of the columns is begun.
  • the columns should have a neutral buoyancy at this point to prevent sudden upward or downward movement when the locking means are released. Complete deballasting of the columns results in their being raised to the towing position, and the entire cycle can then be repeated.
  • restraining means such as hydraulic jacks
  • elevating means suflicient to lift the entire barge out of the water suflicient to lift the entire barge out of the water are provided. It is simply a matter of driving the columns down into the water until the submerged portions of the columns provide enough buoyancy to float the entire structure with the barge out of the water. Continued operation of the ele vating means after this point will raise the barge above the water level. Ballasting and deballasting of the columns is not necessary in this embodiment, but in some cases will be desired to provide additional control of the operation.
  • a floating structure designated generally as 10 is shown.
  • the structure has a barge portion 12, stabilizing columns 14 and 16 located at the fore and aft ends, respectively, of barge 12, and stabilizing columns 18 and 20 located on either side of barge 12.
  • the barge 12 is shown with a deck 22 and a working platform 24 mounted thereon.
  • a derrick 26 is supported by the working platform 24, and drilling rig equipment such as a drawworks, pumps, motors, and related equipment is indicated generally at 28.
  • a stop means 30 is shown near the top of each of the columns 14, 16, 18, and 20.
  • Columns 14, 16, 18 and 20 are shown passing through column machinery housings 32, 34, 36 and 38 respectively, and column machinery housings 36 and 38 are shown rigidly attached to the barge 12 by means of structural appendages 40 and 42 respectively.
  • the column machinery housings may also serve as guide means for the columns.
  • Anchor lines 44 are shown extending from barge 12.
  • a buoyancy tank 46 is shown attached to the lower end of column 14.
  • FIG. 2 shows the barge 12 in a floating condition with the columns 14, 18 and 20 raised to the towing position.
  • the buoyancy tank 46 attached to the lower end of column 14 rests against the bottom of barge 12, while the buoyancy tanks 46 attached to the lower ends of columns 18 and 20 rest against column machinery housings 36 and 38.
  • the buoyancy tanks 46 are preferably streamlined or elongated in the direction of the longitudinal axis of barge 12 for minimum resistance or drag during relocation o structure 10.
  • FIG. 3 shows the condition of the structure 10 after it has reached a working location and after the columns 14, 18 and 20 have been lowered until the stop means 30 near the tops of the columns have contacted the column machinery housings 32, 36 and 38. At this point in the operation the columns can be locked into place by any suitable means (not shown).
  • FIG. 4 shows the structure 10 after the columns have been locked into place and partially deballasted.
  • the barge 12 is shown just as it emerges from the water, at which point the total stability of the structure is provided by the columns.
  • FIG. 5 shows the structure in a completely deballasted condition with the barge 12 raised well above the water level.
  • the structure in this condition is floated by the submerged portions of the columns and attached buoyancy tanks.
  • FIG. 6 shows a modification of the invention in which side mounted columns 48 and 50 are mounted to the barge in such a manner that the columns and their attached buoyancy tanks can be elevated above the water level when the structure is floating. This further reduces resistance to movement of the structure through the water, and in addition enables the structure to move down narrow canals which could not accommodate the structure as shown in FIG. 2.
  • a structure in accordance with the invention could have all of its stabilizing columns pass through housings appendaged outboard of the barge portion, provided that at least three columns are supplied in a stabilizing pattern about the structure.
  • the colunms When fully lowered, the colunms may rest against the top of the housings 32, 34, 36 and 38 by means of stop members 30.
  • the columns are then locked to the platform and its appendages by any suitable means, and the columns are deballasted.
  • FIG. 4 As ballast is removed from the columns, the entire structure, with the barge securely fixed to the top portions of the columns, begin to rise in the water. Since the columns alone have sufiicient buoyancy when deballasted to support the structure with the barge portion completely out of the water, the barge and platform will be elevated above the water level.
  • the barge is further elevated with continuing deballasting, and the final stage of the operation is illustrated in FIG. 5, which shows the barge elevated sufliciently above the water level to clear a preselected level of wave action.
  • the device may be maintained at the working location (such as directly above a drilling site) by conventional means, which might be large sea anchors of a dynamic positioning system comprising a series of outboard motors arranged about the device.
  • the raising process is reversed, and the device is returned to the towing or moving position for relocation.
  • ballast is pumped into the columns and/or the barge portion until the barge reaches its normal floating level.
  • FIG. 7 shows a suitable locking means for securing the barge to the columns.
  • the locking means includes a pin 52 slidably mounted in a sleeve 54 which is secured to the barge deck 22. Pin 52 is actuated by a hydraulically actuated piston rod 56 for insertion into opening 58 in a column.
  • stabilizing columns While the invention is illustrated in the drawings with four stabilizing columns, it is only essential that at least three columns be provided, and that the columns be of suflicient size, and be located in a stabilizing pattern a suflicient distance from the central portion of the structure, to provide adequate buoyancy and stability during any planned use of the device.
  • the stabilizing columns need not be all the some size, and need not be spaced uniformly about the center of the structure, but in most cases this would be the preferred design.
  • elevating means for raising the barge, instead of relying strictly on deballasting of the structure.
  • Such elevating means might be conventional heavy duty jacks, or might be of the rack and pinion type as illustrated in FIG. 8.
  • a motor 60 drives a spur gear 62 through a gear reduction system 64.
  • Spur gear 62 is adapted to mesh with rack 66 mounted on the column. In practice, two or more racks would be mounted on each column to distribute the load.
  • the elevating means may also serve as locking means for securing the columns to the barge at a selected position.
  • the embodiments described above illustrate the invention, but are not to be considered as limiting the scope thereof. It has been shown that the structures in accordance with this invention are mobile, and can be moved from location to location, either by towing or by selfpropulsion, much more easily than the prior art columnstabilized devices. Also, the structures in accordance with the invention, when in the operating or raised condition, are much less susceptible to rolling due to wave action than are the prior art drilling ships, due to the smaller surfaces presented to the waves. It is also apparent that structures in accordance with the invention are stable, due to the size and spacing of the stabilizing columns, even when the barge portion is raised above the water level and the center of gravity of the structure is above the center of buoyancy due to a heavy load carried on the barge.
  • a buoyant structure capable of being floated in a body of water for movement to a location comprising:
  • buoyant barge means having a working platform thereon, said barge means being elongated in the direction of its longitudinal axis to reduce water resistance during said movement to a location;
  • said openings for the columns being positioned in such manner that the columns guided thereby provide the sole stabilization for the structure by maintaining the center of gravity of the structure below its metacenter when the barge means is positioned above the surface of the body of water.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
US881315A 1969-12-01 1969-12-01 Floating self-elevating platform Expired - Lifetime US3605669A (en)

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US88131569A 1969-12-01 1969-12-01

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US (1) US3605669A (de)
DE (1) DE2041925A1 (de)
FR (1) FR2061001A5 (de)
GB (1) GB1310142A (de)
NL (1) NL7012519A (de)
TR (1) TR16905A (de)
ZA (1) ZA705508B (de)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776166A (en) * 1971-11-23 1973-12-04 L Mednikow Aircraft-landing strip device
US3837309A (en) * 1971-06-17 1974-09-24 Offshore Technology Corp Stably buoyed floating offshore device
US3872679A (en) * 1973-12-21 1975-03-25 Chevron Res Apparatus and method for reducing the forces on extendible legs of a floating vessel
US3946684A (en) * 1971-01-18 1976-03-30 Sumner Maurice N Semi-submersible jackup apparatus
US4274356A (en) * 1977-07-14 1981-06-23 Dyckerhoff & Widmann Aktiengesellschaft Semi-submersible floating structure
US4497591A (en) * 1983-09-06 1985-02-05 Gillis Don A Advancing mechanism and system utilizing same for raising and lowering a work platform
US4556008A (en) * 1981-06-22 1985-12-03 Adragem Limited Semi-submersible marine platform
US4655640A (en) * 1983-09-06 1987-04-07 Petroleum Structures, Inc. Advancing mechanism and system utilizing same for raising and lowering a work platform
US5072474A (en) * 1989-07-12 1991-12-17 Dilger Walter H Bridge construction
WO2000027693A1 (en) * 1998-11-06 2000-05-18 Exxonmobil Upstream Research Company Deck installation system for offshore structures
US6305881B1 (en) * 1998-05-22 2001-10-23 Herman J. Schellstede & Associates, Inc. Barge stabilization method
US6443659B1 (en) * 1998-11-23 2002-09-03 Philip J. Patout Movable self-elevating artificial work island with modular hull
EP1247915A1 (de) * 2001-04-04 2002-10-09 Schüssler-Plan Ingenieurgesellschaft für Bau- und Verkehrswegeplanung mbH Veranstaltungsbau mit vertikal verlagerbarem Gebäudeabschnitt
US6869252B1 (en) * 1999-12-28 2005-03-22 Zentech, Inc. Taut mooring system for jack-up type mobile offshore platforms
US20050084336A1 (en) * 2003-10-15 2005-04-21 Technip France Deck-to-column connection for extendable draft platform
US20100086362A1 (en) * 2008-10-03 2010-04-08 The Seasteading Institute Floating stucture for support of mixed use facilities
US20100170168A1 (en) * 2009-01-08 2010-07-08 Carlos Marroquin Floating house with cover
US20100170167A1 (en) * 2009-01-08 2010-07-08 Carlos Marroquin Floating house
US20140205383A1 (en) * 2013-01-21 2014-07-24 Conocophillips Company Jack-up drilling unit with tension legs
CN107268558A (zh) * 2016-04-08 2017-10-20 中国国际海运集装箱(集团)股份有限公司 四桩腿自升式平台的预压桩方法
WO2018074923A1 (en) * 2016-10-18 2018-04-26 Ulstein Design & Solutions B.V. Self-propelled jack-up vessel
CN108163152A (zh) * 2018-02-06 2018-06-15 浙江华蕴海洋工程技术服务有限公司 自升式风电机组安装平台
WO2024170787A1 (fr) * 2023-02-17 2024-08-22 Astraea Technologies Navire de haute mer à stabilité active

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441020A1 (fr) * 1978-11-09 1980-06-06 Lapaix Andre Barge ancrable pour former un appontement ou element de quai d'accostage
DE10021163B4 (de) * 2000-04-29 2006-03-02 Aerodyn Engineering Gmbh Wasserfahrzeug zum Versorgen einer Offshore-Windenergieanlage
US7854570B2 (en) * 2008-05-08 2010-12-21 Seahorse Equipment Corporation Pontoonless tension leg platform
DE202008012355U1 (de) 2008-09-17 2008-12-11 Wärtsilä Ship Design Germany GmbH Hubsystem
DE102016013963A1 (de) * 2016-11-23 2018-05-24 Danger Möricke Meeresinsel bohr plattform mit einer vertikal verschiebbaren, hydraulisch betriebenen hebe-bzw. absenkvorrichtung

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946684A (en) * 1971-01-18 1976-03-30 Sumner Maurice N Semi-submersible jackup apparatus
US3837309A (en) * 1971-06-17 1974-09-24 Offshore Technology Corp Stably buoyed floating offshore device
US3776166A (en) * 1971-11-23 1973-12-04 L Mednikow Aircraft-landing strip device
US3872679A (en) * 1973-12-21 1975-03-25 Chevron Res Apparatus and method for reducing the forces on extendible legs of a floating vessel
US4274356A (en) * 1977-07-14 1981-06-23 Dyckerhoff & Widmann Aktiengesellschaft Semi-submersible floating structure
US4556008A (en) * 1981-06-22 1985-12-03 Adragem Limited Semi-submersible marine platform
US4497591A (en) * 1983-09-06 1985-02-05 Gillis Don A Advancing mechanism and system utilizing same for raising and lowering a work platform
US4655640A (en) * 1983-09-06 1987-04-07 Petroleum Structures, Inc. Advancing mechanism and system utilizing same for raising and lowering a work platform
US5072474A (en) * 1989-07-12 1991-12-17 Dilger Walter H Bridge construction
US6305881B1 (en) * 1998-05-22 2001-10-23 Herman J. Schellstede & Associates, Inc. Barge stabilization method
WO2000027693A1 (en) * 1998-11-06 2000-05-18 Exxonmobil Upstream Research Company Deck installation system for offshore structures
US6374764B1 (en) * 1998-11-06 2002-04-23 Exxonmobil Upstream Research Company Deck installation system for offshore structures
US6443659B1 (en) * 1998-11-23 2002-09-03 Philip J. Patout Movable self-elevating artificial work island with modular hull
US6499914B1 (en) * 1998-11-23 2002-12-31 Philip J. Patout Movable self-elevating artificial work island with modular hull
US6869252B1 (en) * 1999-12-28 2005-03-22 Zentech, Inc. Taut mooring system for jack-up type mobile offshore platforms
EP1247915A1 (de) * 2001-04-04 2002-10-09 Schüssler-Plan Ingenieurgesellschaft für Bau- und Verkehrswegeplanung mbH Veranstaltungsbau mit vertikal verlagerbarem Gebäudeabschnitt
WO2005039966A3 (en) * 2003-10-15 2006-01-19 Technip France Deck-to-column connection for extendable draft platform
WO2005039966A2 (en) * 2003-10-15 2005-05-06 Technip France Deck-to-column connection for extendable draft platform
US20050084336A1 (en) * 2003-10-15 2005-04-21 Technip France Deck-to-column connection for extendable draft platform
US7037044B2 (en) * 2003-10-15 2006-05-02 Technip France Deck-to-column connection for extendable draft platform
US20100086362A1 (en) * 2008-10-03 2010-04-08 The Seasteading Institute Floating stucture for support of mixed use facilities
US8007204B2 (en) * 2008-10-03 2011-08-30 The Seasteading Institute Floating structure for support of mixed use facilities
US20100170168A1 (en) * 2009-01-08 2010-07-08 Carlos Marroquin Floating house with cover
US20100170167A1 (en) * 2009-01-08 2010-07-08 Carlos Marroquin Floating house
US20140205383A1 (en) * 2013-01-21 2014-07-24 Conocophillips Company Jack-up drilling unit with tension legs
CN107268558A (zh) * 2016-04-08 2017-10-20 中国国际海运集装箱(集团)股份有限公司 四桩腿自升式平台的预压桩方法
CN107268558B (zh) * 2016-04-08 2019-12-06 中国国际海运集装箱(集团)股份有限公司 四桩腿自升式平台的预压桩方法
WO2018074923A1 (en) * 2016-10-18 2018-04-26 Ulstein Design & Solutions B.V. Self-propelled jack-up vessel
NL2017637B1 (en) * 2016-10-18 2018-04-26 Ulstein Design & Solutions B V Self-propelled jack-up vessel
CN110099845A (zh) * 2016-10-18 2019-08-06 乌尔斯泰恩设计和解决方案公司 自推进自升式船舶
JP2020500119A (ja) * 2016-10-18 2020-01-09 ウルシュタイン・デザイン・ウント・ソリューションズ・ビー．ブイ．Ｕｌｓｔｅｉｎ Ｄｅｓｉｇｎ ＆ Ｓｏｌｕｔｉｏｎｓ Ｂ．Ｖ． 自己推進ジャッキアップ船舶
US11142290B2 (en) * 2016-10-18 2021-10-12 Ulstein Design & Solutions B.V. Self-propelled jack-up vessel
CN110099845B (zh) * 2016-10-18 2021-12-24 乌尔斯泰恩设计和解决方案公司 自推进自升式船舶
CN108163152A (zh) * 2018-02-06 2018-06-15 浙江华蕴海洋工程技术服务有限公司 自升式风电机组安装平台
WO2024170787A1 (fr) * 2023-02-17 2024-08-22 Astraea Technologies Navire de haute mer à stabilité active
FR3145924A1 (fr) * 2023-02-17 2024-08-23 Astraea Technologies Navire de haute mer à stabilité active

Also Published As

Publication number Publication date
NL7012519A (de) 1971-06-03
GB1310142A (en) 1973-03-14
DE2041925A1 (de) 1971-06-09
ZA705508B (en) 1971-04-28
FR2061001A5 (de) 1971-06-18
TR16905A (tr) 1973-09-01

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