WO2017091086A1 - Installation flottante pour la production ou l'exploration de pétrole ou utilisation associée - Google Patents

Installation flottante pour la production ou l'exploration de pétrole ou utilisation associée Download PDF

Info

Publication number
WO2017091086A1
WO2017091086A1 PCT/NO2016/050241 NO2016050241W WO2017091086A1 WO 2017091086 A1 WO2017091086 A1 WO 2017091086A1 NO 2016050241 W NO2016050241 W NO 2016050241W WO 2017091086 A1 WO2017091086 A1 WO 2017091086A1
Authority
WO
WIPO (PCT)
Prior art keywords
deck
ring
hull
waterline
floating installation
Prior art date
Application number
PCT/NO2016/050241
Other languages
English (en)
Inventor
John Riis
Original Assignee
7Waves As
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 7Waves As filed Critical 7Waves As
Publication of WO2017091086A1 publication Critical patent/WO2017091086A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • 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
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/041—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull with disk-shaped hull
    • 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
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/047—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull with spherical hull or hull in the shape of a vertical ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/44—Bilge keels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B2003/147—Moon-pools, e.g. for offshore drilling vessels

Definitions

  • the present invention relates to floating installations for petroleum exploration or production, or related use. More specifically, the invention relates to a floating installation having specific properties making it particularly feasible for drilling or field development of large petroleum fields offshore.
  • a semi submersible obtains its buoyancy from submerged ballasted pontoons below the water line.
  • the movements are reduced.
  • the movements can still be a severe problem and the capacity of the design with respect to load and deck space are limiting factors.
  • the two main choices are either a floating ship, such as an FPSO (Floating Production, Storage and Offloading), or a cylindrical design as offered by Sevan Marine, for example according to the patent publication WO 02/090177 A1 .
  • a turret with fixed single point mooring is incorporated in the hull. The vessel can then weathervane freely around the turret.
  • the swivel of the turret is a limitation with respect to well shut in pressure, power transfer capacity and number of risers possible.
  • shut in pressure above 490 barg and power transfer capacity above 10 MW no proven solution exists for an FPSO.
  • a cylindrical hull shape typically means a closed bottom or in substance closed bottom cylindrical structure, with no opening in the hull bottom or only a moonpool of limited diameter in the bottom center of the hull.
  • the largest cylindrical hull size presently available has a diameter of 90 m and a deck space of about 6500 m 2 .
  • a diameter of about 100 m can be a practical limitation in many waters for a cylindrical hull design. The diameter limits the deck area, which again limits the topsides capacity.
  • a deck space of more than 15 000 m 2 will be required, in order to include sufficient process facilities, methanol and glycol (MEG) injection system and storage, in addition to hydrocarbon liquid storage capacity and chemical storage capacity.
  • MEG methanol and glycol
  • the main selection criteria are concerned with wave induced motions, liquid storage capacity, payload capacity and topside deck area.
  • patent publication FR 2 299 209 a floating platform shaped as a hollow ring is described and illustrated. However, the structure is flat, as seen in cross section of the ring, which results in structural limitations, in addition to severe limitations with respect to allowable weather and wave height.
  • Another floating structure is described and illustrated in patent publication US 7086810 B2, with an inclined transition portion at the waterline between a very large submerged part and a much smaller emergent part over the waterline.
  • the invention meets the demand by providing a floating installation for petroleum exploration or production, or related use, comprising a deck feasible for having a deck area larger than 6500 m2.
  • the floating installation is distinctive in that
  • the hull is ring-shaped
  • the hull extends from below the waterline to the deck structure elevation; wherein a ratio H/W is larger than 1 , where H is height and W is width of the ring in cross section, excluding any protrusions or flanges on the structure below the waterline or radial openings above the waterline but below the deck elevation.
  • the ratio h/w is at least 2, most preferably about 3.
  • a ratio h/w larger than 1 distinguish over the teaching of FR 2 299 209, which results in a stiffer construction with increased structural strength and elevated level for deck for the installation of the present invention. Accordingly, the installation of the invention is feasible for far worse weather, higher wave heights and increased load capacity compared to the structure of FR 1 299 209.
  • the floating installation comprises an inwards protrusion in the ring shaped hull, below the waterline, preferably at the lower end of the hull.
  • the inwards protrusion extends inwards to reduce an inner diameter of the hull, ID, by at least 5 %, more preferably at least 10 %, even more preferably at least 20 %, compared to ID without said inwards protrusion.
  • the inwards protrusion increases the buoyancy at normal level of the waterline on the hull, by at least 5 %, more preferably at least 0 %, even more preferably at least 20 %, compared to the same hull without said inwards protrusion.
  • the cross section area of the inwards protrusion is at least 5 % of the ring cross section, more preferably at least 10 %, even more preferably at least 20 %, compared to the same hull without said inwards protrusion.
  • the inwards protrusion has two major technical effects. Firstly, the buoyancy and load capacity increases.
  • the inlet to the volume inside the ring shaped hull is restricted, limiting the flow of water in and out, thereby limiting the heave of the water column inside the hull.
  • the structural stiffness increases.
  • heave is reduced due to the damping effect of the protrusion.
  • the floating installation comprising a flange or protrusions in the ring shaped hull, below the waterline, preferably at the lower end of the hull, extending outwards.
  • the floating installation comprising a flange or protrusions in the ring shaped hull, below the waterline, preferably at the lower end of the hull, extending both inwards and outwards.
  • the outwards protrusion extends outwards to increase an outer diameter of the hull, OD, by at least 5 %, more preferably at least 0 %, even more preferably at least 20 %, compared to OD without said outwards protrusion.
  • the outwards protrusion increases the buoyancy at normal level of the waterline on the hull, by at least 5 %, more preferably at least 10 %, even more preferably at least 20 %, compared to the same hull without said outwards protrusion.
  • the cross section area of the outwards protrusion is at least 5 % of the ring cross section, more preferably at least 10 %, even more preferably at least 20 %, compared to the same hull without said outwards protrusion.
  • the outwards protrusion has two major technical effects. Firstly, the buoyancy and load capacity increases. Secondly, and most important for service in harsh conditions, the resistance to heave, yaw, pitch and roll increases, providing a more stable platform. Thirdly, the structural stiffness increases. Fourthly, heave is reduced due to the damping effect of the protrusion. Fifthly, the righting moment is improved, particularly if the outwards protrusion extends above the waterline on one side of the installation during roll.
  • the inwards protrusion and the outwards protrusion extends in substance radially outwards from the ring shaped hull for outwards protrusions and radially inwards from the ring shaped hull for inwards protrusions, respectively, without inclined transitions.
  • the floating installation preferably comprises a deck, the deck has restricted opening for airflow in or out of the volume inside the ring over the waterline, restricting the relative movements of the ring shaped hull and the water inside the ring, controlled to minimise the movements of the installation.
  • the effect is to dampen the fluctuations of the water level inside the hull, and thereby also the fluctuations or movements of the hull, thereby minimising the movements of the installation.
  • the effect of this deck is to mitigate wave impact loads from so called Moonpool piston effect during conditions with excessive wave height.
  • the installation comprises a topside deck arranged on a deck frame consisting of a truss structure with channels or space for ventilation below. The topside deck may be lifted or floated over the floater in one or several parts.
  • the hull has an outer diameter OD and an inner diameter ID, as measured above inwards and/or outwards protrusions, a ratio OD/ID is less than about 1 ,4 or 1 ,35.
  • a ratio OD/H preferably is about 3 or less.
  • the diameter of the encompassed area is equal to or larger than the thickness of the ring shaped hull.
  • the freeboard preferably is above 15 m, more preferably above 20 m, such as about 25 m.
  • a ratio OD/H preferably is from about 1 .5 to about 3 more preferably 1 ,5 to 2,5, most preferably about 2.
  • OD is the outer diameter of the ring-shaped hull at the waterline and h is the height of the ring-shaped hull.
  • Outwards means radially outwards from the ring whilst inwards means radially inwards in the ring.
  • a ratio OD/H preferably is from about 1.5 to about 3 and OD at the waterline is from about 90 m and larger, such as 100 m , 130 m or 140 m.
  • the thickness of the ring shaped hull means thickness in radial direction.
  • the draft of the present floating installation is preferably about 20-30 m for a steel installation and down to about 45 m for a concrete installation.
  • the main deck is in principle at the same elevation above water surface in any case.
  • the OD is constant from below the waterline to above the waterline.
  • the ratio OD at the waterline to draft T is about 30/40 for concrete and about 130/20-30 for steel.
  • Existing concepts have much deeper draft, smaller diameter, inclined OD and typically inclined ID.
  • the floating installation of the invention has OD/T of 2,5 or larger, such as about 3,25 or about 4, where OD is outer diameter at the waterline and T is draft.
  • the floating installation of the invention comprises vertical sidewall, from optional protrusions below the waterline up to a deck structure. Preferably, no inclined structure exists on the installation of the invention, which facilitates construction by slip forming concrete or joining steel.
  • the immersed protrusions are in principle at same elevation as for a steel installation, with respect to the upper elevation thereof. However, for concrete the thickness of the protrusion is larger, so the protrusions are going deeper down, to
  • OD/ID below waterline preferably is 1 ,4 or less, such as 1 ,35 or less.
  • OD/ID at and above waterline preferably is 1 ,4 or less, such as 1 ,35 or less.
  • the ring shaped hull design according to the invention will reduce significantly or eliminate the limitations mentioned above, according to calculations and simulations. For example based on simulations and
  • a ratio of a harmonic frequency or period of the floating installation to said frequency or period of the water column inside the ring, including inwards and outward protrusion(s) if any, is an odd number, most preferably a prime number such as 2, 3 or 5.
  • the floating installation of the invention comprises a ring shaped hull wherein the waterline area encompassed by the hull, the Moonpool, is at least 25 % of the ring of the ring shaped hull waterline area, preferably at least 50 % of said hull waterline area, more preferably at least 75 % of said hull waterline area, even more preferable at least 100 % of said hull waterline area, most preferable the waterline area encompassed by the hull is larger than said waterline area of the hull, such as 125 %, or 150 % of said hull waterline area.
  • the floating installation of the invention as seen from above has shape as a circular ring, a quadrate, a near quadrate rectangle, a quadrate having truncated corners, a polygonal ring structure or combinations or shapes in between.
  • Said shape can be elongated or non-symmetrical in other ways, for example having shape like a traditional ship. However, most preferably said shape is circular, quadratic or symmetrical in other ways in order to facilitate fixed mooring without introducing momentums caused by weathervaning motions.
  • each of the four quadrants, as seen from above when viewing the floating installation have the same shape. All of said shapes are in this context considered to be a "ring shape”.
  • Fixed moorings are preferably attached at or close to the outer edges of the hull structure. As an alternative, thrusters and dynamic positioning can be used for position keeping, particularly in deep and very deep waters.
  • the topside deck of the floating installation is preferably arranged on a truss structure with space for restricted or free ventilation below.
  • conduits, channels or openings in other ways radially out below the deck or through the deck are provided for restricted ventilation or free ventilation.
  • free ventilation means that the movement dampening effect on the hull of the wave action in the encompassed area shall not be significantly influenced by pressure build up and air flow restrictions.
  • at least about 5 %, more preferably about 10 % or more of the encompassed area cross section are available as cross sectional area in openings for ventilation through truss structure, channels or other ventilation openings, for free ventilation.
  • less than 5 %, more preferably less than 3 or 2% of said cross sections are available for restricted flow of air, which provides a damping effect on the water column fluctuations inside the ring shaped hull.
  • the deck of the floating installation is without openings.
  • the ring shaped hull comprises radial openings above the waterline but below the deck elevation.
  • the deck of the floating installation is without openings but the ring shaped hull comprises radial openingsabove the waterline but below the deck elevation, which openings provide radial release of energy from waves inside the ring, that is the Moonpool, particularly relevant with any excessive waves inside the Moonpool.
  • One such embodiment comprises a closed topside deck on a highest elevation of an open truss structure extending between the top of the ring of the ring-shaped hull structure up to said deck.
  • the main deck of the ring shaped hull preferably is a closed structure; whilst radial openings are provided through the ring of the ring-shaped hull above the waterline but below the deck structure, and/or radial openings are provided in the lower parts of an open truss deck structure.
  • the floating installation has typical dimensions as follows:
  • Topside weight capacity 30 000 metric tons
  • Hull weight 50 000 metric tons or heavier
  • Liquid storage capacity 163 000 metric tons (1.0 Mbbl)
  • the ring-shaped hull has constant outer diameter OD from below the waterline up to the deck elevation.
  • the OD of the ring shaped hull is constant from the lowest elevation to the highest elevation thereof, excluding any optional outwards protrusions or flanges on the structure below the waterline or radial openings above the waterline but below the deck elevation.
  • the inner diameter ID of the ring shaped hull is constant from the lowest elevation to the highest elevation thereof, excluding any optional inwards protrusions or flanges on the structure below the waterline or radial openings above the waterline but below the deck elevation.
  • the ring-shaped hull is cylindrical.
  • the production is simplified thereby, whether the hull is made of steel or concrete.
  • the ring-shaped hull may comprise protrusions or flanges above the waterline but below the deck structure, if such protrusions or flanges are present they are excluded from the H W - ratios that are distinguishing over the prior art installations.
  • protrusions or flanges may be part of an optional
  • the floating installation of the invention comprises dry wellheads, which provides the option for any further drilling to take place from a deck elevation of the installation.
  • the invention also provides use of the floating installation according to the invention, for exploration or production of petroleum fields offshore, preferably for production of larger petroleum fields offshore at deep waters, meaning petroleum fields requiring a platform with deck area larger than 6500 m 2 at water deeper than 100 m, such as deeper than 500 m.
  • a preferred use of the floating installation of the invention is as a drilling platform with dry wellheads and drilling from the installation.
  • Other uses of the floating installation of the invention are as fundament for bridges, structure for offshore aquaculture, such as fish farming, and other uses.
  • a very favourable embodiment of the invention is for fish-farming offshore or elsewhere.
  • the ring-shaped structure is in substance closed for water, fish lice, spill and pollution spreading out from the ring and inflow of fish lice into the ring, since the draft typically can be down to at least about 40 m for the embodiments modelled so far, meaning that all water exchange may take place at 40 m depth.
  • This will limit or eliminate the fish lice problem, such as salmon lice problem and may also allow control of any pollution problem or poisonous medicine problem since the water inside the ring can be confined until medicines are harmless and pollution can in substance be held inside the ring, such as on an inwards flange from where it can be taken up periodically.
  • Fig. 1 is one embodiment of a floating installation of the invention, in cross section and as obliquely viewed from slightly above, without deck.
  • Fig. 2 is a further embodiment of a floating installation of the invention, in cross section and as obliquely viewed from slightly above and slightly below, without deck.
  • Fig. 3 is a further embodiment of a floating installation of the invention, in cross section and as obliquely viewed from slightly above and slightly below, without deck.
  • Fig. 4 is a further embodiment of a floating installation of the invention, in cross section and as obliquely viewed from slightly above and slightly below, without deck.
  • Fig. 5 is a further embodiment of a floating installation of the invention, with deck.
  • Fig. 6 is a further embodiment of a floating installation of the invention, with radial openings through the ring-shaped hull.
  • Fig. 7 is a further embodiment of a floating installation of the invention, with fish cage or net, preferably easily retrievable.
  • Fig. 8 is a further embodiment of a floating installation of the invention, with derrick.
  • Fig. 9 is a further embodiment of a floating installation of the invention, as bridge foundation.
  • FIGS 1-4 are identical except for that each Figure illustrates one specific embodiment of the floating installation of the invention.
  • Figure 1 illustrates a floating installation (1 ) for petroleum exploration or production, or related use, feasible for having deck area larger than 6500 m 2 .
  • the hull (2) is shaped as a ring, the cross section of the ring is having a height H and a width W, a ratio H W is larger than 1 , which is clearly seen from the Figure.
  • the ratio H/W is about 3 and the hull, in cross section of the ring, includes no protrusions or flanges on the structure.
  • the installation comprises a deck (3).
  • Figure 2 is in principle identical to Figure 1 , except that the illustrated
  • embodiment comprises an inwards protrusion (4). Only new features on Figures 2-5, compared to features on Fig. 1 are provided with reference numericals.
  • Figure 3 is in principle identical to Figure 1 , except that the illustrated
  • embodiment comprises an outwards protrusion (5).
  • Figure 4 is in principle identical to Figure 1 , except that the illustrated
  • embodiment comprises a protrusion (6) extending both inwards and outwards, which is an inwards and outwards protrusion.
  • Figure 5 illustrates a floating installation of the invention with a quadratic deck structure (3).
  • the deck structure can be supported by beams (7) as illustrated on Fig. 5, or a truss structure (8) as illustrated briefly on Figures 1-4.
  • Figure 6 illustrates radial openings through the ring-shaped hull
  • Figure 7 illustrates a fish cage or net, preferably easily retrievable by including a winch functionality, not illustrated. With the net retrieved to close the opening at the bottom of the installation, all fish can be kept inside the ring, facilitating lice removal and reducing pollution if medicines are used.
  • Figure 8 illustrates a derrick on the installation and Figure 9 illustrates the installation used as a bridge foundation.
  • the floating installation of the invention can comprise any feature here described or illustrated, in any operative combination, each such operative combination is an embodiment of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Revetment (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

L'invention concerne une installation flottante pour la production ou l'exploration de pétrole, ou une utilisation associée, comprenant un pont susceptible d'avoir une aire de surface de pont supérieure à 6 500 m2. L'installation flottante est caractérisée en ce que la coque est annulaire ; à l'intérieur de l'anneau de la coque annulaire, l'installation est ouverte sur une élévation de structure de pont, la coque s'étend du dessous de la ligne de flottaison à l'élévation de structure de pont ; un rapport H/W étant supérieur à 1, où H est la hauteur et W est la largeur de l'anneau en section transversale, à l'exclusion de toute protubérance ou bride sur la structure en dessous de la ligne de flottaison ou toute ouverture radiale au-dessus de la ligne de flottaison mais en dessous de l'élévation de pont. L'invention concerne également des utilisations de l'installation.
PCT/NO2016/050241 2015-11-27 2016-11-25 Installation flottante pour la production ou l'exploration de pétrole ou utilisation associée WO2017091086A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20151617A NO340723B1 (en) 2015-11-27 2015-11-27 Floating installation for petroleum exploration or production or related use
NO20151617 2015-11-27

Publications (1)

Publication Number Publication Date
WO2017091086A1 true WO2017091086A1 (fr) 2017-06-01

Family

ID=58763611

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2016/050241 WO2017091086A1 (fr) 2015-11-27 2016-11-25 Installation flottante pour la production ou l'exploration de pétrole ou utilisation associée

Country Status (2)

Country Link
NO (1) NO340723B1 (fr)
WO (1) WO2017091086A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0390497A (ja) * 1989-06-15 1991-04-16 Mitsubishi Heavy Ind Ltd 浮遊式海洋構造物
JPH0656074A (ja) * 1992-08-10 1994-03-01 Mitsubishi Heavy Ind Ltd 浮遊式海洋構造物
JP2008074297A (ja) * 2006-09-22 2008-04-03 Mitsubishi Heavy Ind Ltd 浮体構造物

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411212A (en) * 1979-06-05 1983-10-25 Seatek Apparatus for reducing roll and pitch motions of floating vessels
BRPI0601273B1 (pt) * 2006-04-17 2019-02-12 Petróleo Brasileiro S.A. - Petrobras Fpso em forma de mono-coluna
CA2803479C (fr) * 2010-07-08 2019-08-27 Itrec B.V. Navire semi-submersible et procede de fonctionnement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0390497A (ja) * 1989-06-15 1991-04-16 Mitsubishi Heavy Ind Ltd 浮遊式海洋構造物
JPH0656074A (ja) * 1992-08-10 1994-03-01 Mitsubishi Heavy Ind Ltd 浮遊式海洋構造物
JP2008074297A (ja) * 2006-09-22 2008-04-03 Mitsubishi Heavy Ind Ltd 浮体構造物

Also Published As

Publication number Publication date
NO20151617A1 (en) 2017-05-29
NO340723B1 (en) 2017-06-06

Similar Documents

Publication Publication Date Title
KR101771907B1 (ko) 근해 부력식 시추, 생산, 저장 및 하역 구조물
US8387550B2 (en) Offshore floating platform with motion damper columns
US7934462B2 (en) Offshore floating structure with motion dampers
EP2007619B1 (fr) Plate-forme de type fpso mono-colonne
US7958835B2 (en) Offshore floating production, storage, and off-loading vessel for use in ice-covered and clear water applications
KR101119854B1 (ko) 탄화수소의 시추 또는 생산을 위한 해양 플랫폼
US6899492B1 (en) Jacket frame floating structures with buoyancy capsules
EP2726362B1 (fr) Plateforme en mer à colonnes à déport externe
US7140317B2 (en) Central pontoon semisubmersible floating platform
US8707882B2 (en) Offshore platform with outset columns
CN103085947B (zh) 沙漏型海洋工程浮式结构物
CN103171743B (zh) 对接八棱台式浮式生产储油系统
CN103085946B (zh) 对接圆台式浮式生产储油系统
CN202847986U (zh) 对接八棱台式浮式生产储油系统
US9415843B1 (en) Floating driller
WO2017091086A1 (fr) Installation flottante pour la production ou l'exploration de pétrole ou utilisation associée
CN202935548U (zh) 沙漏型海洋工程浮式结构物
CN115402481A (zh) 一种用于海上原油的生产、储存及装卸的浮式平台结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16868959

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16868959

Country of ref document: EP

Kind code of ref document: A1