EP3261917B1 - Vaisseau flottant - Google Patents

Vaisseau flottant Download PDF

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Publication number
EP3261917B1
EP3261917B1 EP16756028.3A EP16756028A EP3261917B1 EP 3261917 B1 EP3261917 B1 EP 3261917B1 EP 16756028 A EP16756028 A EP 16756028A EP 3261917 B1 EP3261917 B1 EP 3261917B1
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EP
European Patent Office
Prior art keywords
storage
hull
floating production
offloading vessel
vessel
Prior art date
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.)
Active
Application number
EP16756028.3A
Other languages
German (de)
English (en)
Other versions
EP3261917A4 (fr
EP3261917A1 (fr
Inventor
Nicolaas Johannes Vandenworm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jurong Shipyard Pte Ltd
Original Assignee
Jurong Shipyard Pte Ltd
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
Priority claimed from US14/630,563 external-priority patent/US9266587B1/en
Application filed by Jurong Shipyard Pte Ltd filed Critical Jurong Shipyard Pte Ltd
Publication of EP3261917A1 publication Critical patent/EP3261917A1/fr
Publication of EP3261917A4 publication Critical patent/EP3261917A4/fr
Application granted granted Critical
Publication of EP3261917B1 publication Critical patent/EP3261917B1/fr
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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
    • 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 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/015—Non-vertical risers, e.g. articulated or catenary-type
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof
    • 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
    • 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
    • B63B2035/448—Floating hydrocarbon production vessels, e.g. Floating Production Storage and Offloading vessels [FPSO]

Definitions

  • the disclosed technology relates to floating production, storage and offloading (FPSO) vessels and to hull designs and offloading systems for a floating drilling, production, storage and offloading (FDPSO) vessel.
  • FPSO floating production, storage and offloading
  • FDPSO floating drilling, production, storage and offloading
  • the principal elements which can be modified for improving the motion characteristics of a moored floating vessel are the draft, the water plane area, and its draft rate of change, location of the center of gravity (CG), the metacentric height about which small amplitude roll and pitching motions occur, the frontal area and shape on which winds, current and waves act, the system response of pipe and cables contacting the seabed acting as mooring elements, and the hydrodynamic parameters of added mass and damping.
  • the latter values can be determined by complex solutions of the potential flow equations integrated over the floating vessels detailed features and appendages and then simultaneously solved for the potential source strengths.
  • the prior art provides for an offshore floating facility with improved hydrodynamic characteristics and the ability to moor in extended depths thereby providing a satellite platform in deep water resulting in shorter flowline, cables, and umbilicals from the subsea trees to the platform facilities.
  • Previous designs incorporate a retractable center assembly which contains features to enhance the hydrodynamics and allows for the integral use of vertical separators in a quantity and size providing opportunity for individual full time well flow monitoring and extending retention times.
  • a principal feature of vessels of the industry is a retractable center assembly within the hull, which can be raised or lowered in the field to allow transit in shallow areas.
  • the retractable center assembly provides a means of pitch motion damping, a large volumetric space for the incorporation of optional ballast, storage, vertical pressure or storage vessels, or a centrally located moon pool for deploying diving or remote operated vehicle (ROV) video operations without the need for added support vessels.
  • ROV remote operated vehicle
  • Hydrodynamic motion improvements of vessels are provided by: the basic hull configuration; extended skirt and fins at the hull base; a (lowered at site) center assembly extending the retractable center section with the base and mid-mounted hydrodynamic skirts and fins, the mass of the separators below the hull deck that lowers the center of gravity; and attachment of the steel catenary risers, cables, umbilicals, and mooring lines near the center of gravity at the hull base.
  • the noted features improve vessel stability and provide increased added mass and damping, which improves the overall response of the system under environmental loading.
  • Prior art vessels can have hulls which are hexagonal in shape.
  • Floating production, storage and offloading vessel can have an octagonal hull.
  • Prior art floating production, storage, and offloading vessels have a polygonal exterior side wall configuration with sharp corners to cut ice sheets, resist and break ice, and move ice pressure ridges away from the vessel.
  • Prior art also teaches a drilling and production platform consisting of a semi-submersible platform body having the shape of a cylinder having a flat bottom and a circular cross-section.
  • Previous vessels have a peripheral circular cut-out or recess in a lower part of the cylinder, and the design provides a reduction in pitching and rolling movement.
  • US2009012661 describes an offshore floating production, storage, and off-loading vessel with a monolithic non ship-shaped hull of polygonal configuration surrounding a central double tapered conical moon pool and contains water ballast and oil storage components.
  • US20110107951 describes an offshore structure having a vertically symmetric hull, an upper vertical wall, an upper inwardly-tapered wall disposed below the upper sloped wall, a lower outwardly-tapered wall disposed below the upper sloped wall, and a lower vertical wall disposed below the lower sloped wall.
  • a moveable hawser connection assembly is mounted to the hull which is attached to a hawser for attachment of a tanker to the offshore structure.
  • Chinese Utility Model Application CN2900352Y entitled “Float rocking reducing device on sea” discloses an offshore floating body anti-rolling device which includes a ring of anti-rolling plates arranged around the bottom of the offshore floating body, and the outer edge of the anti-rolling plate is L-shaped upwards, a set of supporting plates connecting the anti-rolling plate and the floating body are arranged on the anti-rolling plate at intervals, and a set of spoiler openings are arranged on the anti-rolling plate on the side close to the floating body at intervals, away from all
  • the anti-rolling plate on one side of the floating body is provided with 1 to 3 stiffening angles.
  • a catenary anchor leg mooring (CALM) buoy is typically anchored near a floating production, storage and offloading vessel.
  • the buoy is anchored to the seabed so as to provide a minimum distance from a nearby floating production, storage and offloading vessel.
  • a pair of cables attaches the buoy to the floating production, storage and offloading vessel and an offloading hose extends from the floating production, storage and offloading vessel to the buoy.
  • a tanker is moored temporarily to the buoy and a hose is extended from the tanker to the buoy for receiving product from the floating production, storage and offloading vessel through hoses connected through the buoy.
  • the disclosed technology relates to a floating platform, storage and offloading (FPSO) vessel with several alternative hull designs, and a moveable hawser system for offloading, which allows a tanker to weathervane over a wide arc with respect to the floating production, storage and offloading vessel.
  • FPSO floating platform, storage and offloading
  • the disclosed technology further relates to a floating vessel configured to support at least one of: drilling of wells, workover of wells, production of hydrocarbons, storage of hydrocarbons, and personnel accommodation.
  • the floating production, storage and offloading vessel can have a hull planform that can be circular, oval, elliptical, or polygonal.
  • the hull of the floating production, storage and offloading vessel can have a bottom surface (known as a keel); deck surface (also known as a main deck); at least two connected sections engaging between the bottom surface (keel) and the deck surface (main deck).
  • a bottom surface known as a keel
  • deck surface also known as a main deck
  • the at least two connected sections can be joined in series and each can be configured to be symmetrical about a vertical axis.
  • the connected sections can extend downwardly from the deck surface toward the bottom surface.
  • the connected sections can have at least two of an upper cylindrical portion, a cylindrical neck section, and a lower conical section.
  • At least one radial fin can be secured to the hull to reduce movement.
  • the lower conical section provides added mass improved hydrodynamic performance through linear and quadratic damping to the hull.
  • the floating production, storage and offloading vessel specifically does not require a retractable center column to control pitch roll and heave.
  • Figure 1 depicts a floating production, storage and offloading vessel 10 is shown in a plan view.
  • the tanker T is shown in two different positions A, and B, as the tanker weathervane on the floating production, storage and offloading vessel 10.
  • the floating production, storage and offloading vessel 10 can be a hull 9a.
  • the floating production, storage and offloading vessel 10 floats in water W and can be used in the production, storage and/or offloading of resources extracted from the Earth, such as hydrocarbons including crude oil and natural gas and minerals such as can be extracted by solution mining.
  • the floating production, storage and offloading vessel 10 can be assembled onshore using known methods, which can be similar to shipbuilding, and towed to an offshore location, typically above an oil and/or gas field in the earth below the offshore location.
  • At least one anchor line 16a, 16b, 16c, and 16d which would be fastened to anchors in the seabed that are not shown, moor floating production, storage and offloading vessel 10 in a desired location.
  • At least one moveable hawser assemblies 18 can be used. Each moveable hawser assembly can be disposed in a different location on the hull, namely as a moveable hawser connection assembly 40 and a moveable hawser assembly 60.
  • a hose 20 can be extended between hull 9a and tanker T for transferring crude oil and/or another fluid from floating production, storage and offloading vessel 10 to tanker T.
  • Figure 2 depicts a side elevation of the floating production, storage and offloading vessel 10 according to the disclosed technology.
  • crude oil can be produced from the Earth below the seabed under the floating production, storage and offloading vessel 10, transferred into and stored temporarily in the hull 9a, and offloaded to a tanker T for transport to onshore facilities.
  • Tanker T can be moored temporarily to the floating production, storage and offloading vessel 10 during the offloading operation by the moveable hawser connection assembly 40.
  • the hose 20 can be extended between the hull 9a and tanker T for transferring crude oil and/or another fluid from the floating production, storage and offloading vessel 10 to tanker T.
  • the at least one moveable hawser assemblies 18 can be used.
  • Each moveable hawser assembly can be disposed in a different location on the hull 9a, namely as the moveable hawser connection assembly 40 and the moveable hawser assembly 60.
  • Figure 3 is side elevation of floating production, storage and offloading vessel 10.
  • a hull 9b of the floating production, storage and offloading vessel 10 is shown having a top deck surface 12a, an upper cylindrical portion 12b extending downwardly from the deck surface 12a, an upper conical section 12c extending downwardly from upper cylindrical portion 12b, and tapering inwardly, a cylindrical neck section 12d extending downwardly from upper conical section 12c, a lower conical section 12e extending downwardly from cylindrical neck section 12d which can flare outwardly, and a lower cylindrical section 12f extending downwardly from the lower conical section 12e.
  • the lower conical section 12e can be described herein as having the shape of an inverted cone or as having an inverted conical shape as opposed to the upper conical section 12c, which can be described herein as having a regular conical shape.
  • the floating production, storage and offloading vessel 10 floats such that the surface of the water intersects regular with the upper conical section 12c, which can be referred to herein as the waterline being on the regular cone shape.
  • the floating production, storage and offloading vessel 10 can be loaded and/or ballasted to maintain the waterline on a bottom portion of regular, upper conical section 12c.
  • a cross-section of the hull 9b through any horizontal plane can have a circular shape.
  • the hull 9b can be designed and sized to meet the requirements of a particular application, and services can be requested from Maritime Research Institute of the Netherlands to provide optimized design parameters to satisfy the design requirements for a particular application.
  • the upper cylindrical portion 12b can have approximately the same height as the cylindrical neck section 12d, while the height of the lower cylindrical section 12f can be about 3 to 4 times greater than the height of the upper cylindrical portion 12b.
  • the lower cylindrical section 12f can have a greater diameter than the upper cylindrical portion 12b.
  • the upper conical section 12c can have a greater height than the lower conical section 12e.
  • the bottom surface 12g is also depicted.
  • a plurality of catenary production risers 90a and 90c are depicted.
  • the plurality of catenary production risers can be at least one of: a catenary riser or a vertical riser production riser, or combinations thereof.
  • the hawser 18 of the moveable hawser connection assembly 40 and the moveable hawser assembly 60 are also depicted.
  • a tubular channel 42 is also depicted.
  • the hose 20 can be depicted on a hose reel.
  • the hose can extend from the hull 9b and the tanker for transfer of crude oil and/or another fluid from floating production, storage and offloading vessel 10 to tanker.
  • the at least one anchor lines 16 is depicted.
  • Figure 4 depicts the moveable hawser connection assembly 40 that has in one embodiment nearly fully enclosing the tubular channel 42.
  • the tubular channel 42 can have a rectangular cross-section and a longitudinal slot.
  • the hull 9b of floating production, storage and offloading vessel 10 is shown with the top deck surface 12a and the lower conical section 12e.
  • the lower conical section 12e can be described herein as having the shape of an inverted cone or as having an inverted conical shape.
  • the hawser 18 of the moveable hawser connection assembly 40 is also depicted.
  • the hose 20 can be depicted on a hose reel; this can be the hose 20 that extends between the hull 9b and tanker for the transfer of crude oil and/or another fluid from the floating production, storage and offloading vessel 10 to tanker.
  • the at least one anchor lines 16a, 16b, 16c, and 16d are depicted.
  • Figure 5 depicts side elevations showing an alternative design for the hull 9c.
  • a hull 9c can have the top deck surface 12a, wherein the upper conical section 12c extends from the top deck surface 12a and tapers inwardly as it extends downwardly.
  • the cylindrical neck section 12d which can be attached to a lower end of the upper conical section 12c and extend downwardly from the upper conical section.
  • the lower conical section 12e can be attached to a lower end of the cylinder neck section 12d and extends downwardly from cylindrical neck section 12d while flaring outwardly.
  • the lower cylindrical section 12f extends downwardly from the lower conical section 12e.
  • a significant difference between the hull 9c and other hull designs can be that hull 9c does not have the upper cylindrical portion 12b.
  • Figure 6 depicts side elevations showing an alternative design for the hull 9d.
  • a side elevation of a hull 9d which shows the hull 9d that can have the top deck surface 12a, the upper cylindrical portion 12b, the upper conical section 12c extending from the upper cylindrical portion 12b and taper inwardly as it extends downwardly.
  • the lower conical section 12e can be attached to the upper conical section 12c.
  • the lower conical section 12e can extend downwardly while flaring outwardly.
  • the lower cylindrical section 12f extends downwardly from the lower conical section 12e.
  • a significant difference between the hull 9d and other hull designs can be that the hull 9d does not have the cylindrical neck section 12d.
  • Figure 7 is a top plan view of the moveable hawser connection assembly 40, according to the disclosed technology.
  • the moveable hawser connection assembly 40 is depicted on the floating production, storage and offloading vessel, which can help to accommodate movement of the transport tanker with respect to the floating production, storage and offloading vessel.
  • the moveable hawser connection assembly 40 comprises in one embodiment nearly fully enclosing the tubular channel 42 that has a rectangular cross-section and a longitudinal slot.
  • tubular channel 42 is shown with a set of standoffs 44a and 44b that can connect the tubular channel 42 horizontally to the top deck surface 12a.
  • a trolley 46 can be captured and moveable within the tubular channel 42.
  • a trolley shackle 48 can be attached to the trolley 46 providing a connection point and a plate 50 pivotably attaching to the trolley shackle 48 through a plate shackle 52.
  • the plate 50 can have a generally triangular shape with the apex of the triangle attached to the plate shackle 52 through a pin 54 passing through a hole in the plate shackle 52.
  • the plate 50 can have a first hole 55a adjacent another point of the triangle and a second hole 55b adjacent the final point of the triangle.
  • the hawser 18 terminates with a dual connection point 19a and 19b which can be connected to the plate 50 by passing through the holes 55a and 55b respectively.
  • the dual connection point 19a and 19b of the plate 50 and or the plate shackle 52 can be eliminated and the hawser 18 can be connected directly to the trolley shackle 48.
  • Other variations can be usable in connecting the hawser 18 to the trolley 46.
  • Figure 8 depicts a side elevation of the floating, production, storage and offloading vessel 10 according to the disclosed technology.
  • the floating production, storage and offloading vessel 10 can have the hull 9d and the top deck surface 12a and a cross-section of the hull 9d, through any horizontal plane, while the hull 9d can be floating, can be a circular shape.
  • the upper cylindrical portion 12b extends downwardly from the top deck surface 12a and the upper conical section 12c extends downwardly from the upper cylindrical portion 12b and tapers the floating production, storage and offloading vessel 10.
  • the lower conical section 12e extends downwardly from the upper conical section 12c and can flare outwardly.
  • the lower cylindrical section 12f can extend downwardly from the lower conical section 12e.
  • the hull 9d can have the bottom surface 12g, also known as a keel.
  • the lower conical section 12e can be described herein as having the shape of an inverted cone or as having an inverted conical shape as opposed to the upper conical section 12c, which can be described herein as having a regular conical shape.
  • the floating production, storage and offloading vessel 10 is shown as floating, such that the surface of the water can intersect the upper cylindrical portion 12b when loaded and/or ballasted.
  • the upper conical section 12c can have a substantially greater vertical height than the lower conical section 12e, and the upper cylindrical portion 12b can have a slightly greater vertical height than the lower cylindrical section 12f.
  • At least one fin 84 can be attached to a lower and outer portion of the hull.
  • the at least one anchor lines 16a and 16f are shown for mooring the floating production, storage and offloading vessel 10.
  • a moon pool 92 is shown formed in the center of the hull 9d and extending through the bottom surface 12g.
  • Catenary production risers 90a and 90d are also shown.
  • Figure 9 depicts a cross-section of the floating production, storage and offloading vessel with the hull 9d.
  • the hull 9d can have at least one fin.
  • a plurality of fins 84a, 84b, 84c and 84d are shown.
  • the plurality of fins can be separated from each other by a plurality of gaps 86a, 86b, 86c and 86d.
  • the plurality of gaps 86a, 86b, 86c and 86d can be spaced between the plurality of fins 84a, 84b, 84c and 84d, which can provide a place that accommodates the at least one catenary production risers 90a, 90c (see Figure 8 ), such as production risers and anchor lines 16a, 16b, 16c, 16d on the exterior of the hull 9d, without contact with the at least one fin 84a, 84b, 84c, and 84d.
  • the fins can be radial fins.
  • At least one anchor line 16a, 16b, 16c and 16d can be received in the plurality of the gaps 86a, 86b, 86c and 86d respectively.
  • the at least one anchor line secures the floating drilling, production, storage and offloading vessel and/or the floating production, storage and offloading vessel 10 to the seabed.
  • Catenary production risers can be received in the plurality of gaps 86a, 86b, 86c, and 86d and can deliver a resource, such as crude oil, natural gas and/or a leached mineral, from the Earth below the seabed to tankage within the floating production, storage and offloading vessel 10.
  • the moon pool 92 is also depicted with an opening 91 to the bottom surface.
  • Figure 10 depicts the at least one fin 84a and 84b for reducing heave.
  • Each section of the at least one fin 84a and 84b can have the shape of a right triangle in a vertical cross-section, where the 90 degree angle can be located adjacent a lowermost outer side wall of the lower cylindrical section 12f of any of the hulls, shown here as hull 9d, such that a bottom edge 85 of the triangle shape of the at least one fin 84a and 84b is co-planar with the bottom surface 12g of the hull 9d.
  • a hypotenuse 82 of the triangle shape extends from a distal end 88 of the bottom edge 85 of the triangle shape upwards and inwards to attach to the outer side wall of the lower cylindrical section 12f at a point only slightly higher than the lowermost edge of the outer side wall of lower cylindrical section 12f.
  • Some experimentation can be required to size the at least one fin 84a and 84b for optimum effectiveness.
  • a starting point can be the bottom edge 85 extending radially outwardly a distance that can be about half the vertical height of lower cylindrical section 12f, and the hypotenuse 82 attaches to the lower cylindrical section 12f such as, about one quarter up the vertical height of the lower cylindrical section 12f from the bottom surface 12g of the hull or combinations thereof.
  • each triangle shape fin can be rotated by 45 degrees and attached to the hull and be usable herein.
  • the floating production, storage and offloading vessel can be anchored and its installation can be otherwise complete, it can be used for drilling exploratory or production wells, provided a derrick is installed, and it can be used for production and storage of resource or products.
  • At least one ballast tank 96 is depicted for ballasting and deballasting the floating production, storage and offloading vessel 10 as well as the moon pool 92.
  • Figure 11 provides a perspective detailed view of the floating production, storage and offloading vessel 10 with a detail of the at least one fin 84 attached to and transitioned from one of the aforementioned hull configurations.
  • the plurality of gaps 86a and 86b are shown separating the at least one fin 84.
  • this hull design with the submerged section of the hull having the at least one fin and a heavier or larger lower cylindrical section can create the hull that provides for improved hydrodynamic performance through linear and quadratic damping, namely suppression of radiated waves and friction of viscous origin while that portion of the hull is submerged.
  • the vessel can have an ellipsoidal planform, the dynamic response of the hull can be independent of wave direction (when neglecting any asymmetries in the mooring system, risers, and underwater appendages), thereby minimizing wave-induced yaw forces.
  • the vessel has a conical form of the hull, the hull can be structurally efficient, offering a high payload and storage volume per ton of steel when compared to traditional ship-shaped offshore structures.
  • the hull can have ellipsoidal walls which can be ellipsoidal in radial cross-section, but such shape may be approximated using a large number of flat metal plates rather than bending plates into a desired curvature.
  • a polygonal hull planform can be used according to alternative embodiments.
  • an elliptical hull can minimize or eliminate wave interference.
  • the floating production, storage and offloading vessel can be configured to support at least one of: drilling of wells, work over of wells, production, storage of hydrocarbons, and personnel accommodation.
  • the floating production, storage and offloading vessel can have the hull with a hull planform that can be circular, oval, elliptical, or polygonal.
  • the hull can have the bottom surface and the deck surface.
  • the hull can be formed using at least two connected sections engaging between the bottom surface and the deck surface.
  • the at least two connected sections can be joined in series and symmetrically configured about a vertical axis with the connected sections extending downwardly from the deck surface toward the bottom surface.
  • the connected sections can be at least two of: the upper cylindrical portion; the neck section; and the lower conical section.
  • the at least one fin can be secured to the hull and extend from an outer side of the hull.
  • the hull can be configured so that the lower conical section provides added mass improved hydrodynamic performance through linear and quadratic damping to the hull and wherein the floating production, storage and offloading vessel does not require a retractable center column to control pitch roll and heave.
  • the floating production, storage and offloading vessel can have a centrally disposed moon pool.
  • the moon pool can open through the bottom surface.
  • the floating production, storage and offloading vessel can have the at least one anchor line extending from the deck surface or the hull to moor the floating production, storage and offloading vessel to the sea floor.
  • the floating production, storage and offloading vessel can have the at least one fin discontinuously secured around the hull on the outer surface of the hull.
  • the floating production, storage and offloading vessel can have the at least one catenary production riser or at the least one vertical riser secured to the bottom surface below a transit depth of the floating production, storage and offloading vessel.
  • the floating production, storage and offloading vessel can have the at least one ballast tank for ballasting and deballasting the floating production, storage and offloading vessel.
  • the floating production, storage and offloading vessel can have the movable hawser connection assembly mounted to the hull.
  • the floating production, storage and offloading vessel can have the low center of gravity providing an inherent stability to the structure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Vibration Prevention Devices (AREA)
  • Bridges Or Land Bridges (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Claims (11)

  1. Navire de production, de stockage et de déchargement flottant (10), le navire de production, de stockage et de déchargement flottant comprenant :
    a. une coque (9a, 9b, 9c, 9d) ayant une forme de plan de coque qui est circulaire, ovale, elliptique ou polygonale, la coque comprenant :
    (i) une surface inférieure (12g) ;
    (ii) une surface de pont supérieur (12a) ; et
    (iii) au moins deux sections reliées s'engageant entre la surface inférieure (12g) et la surface du pont supérieur (12a), les au moins deux sections reliées jointes en série et symétriques étant configurées autour d'un axe vertical avec les au moins deux sections reliées s'étendant vers le bas depuis la surface du pont supérieur (12g) vers la surface inférieure (12a), les au moins deux sections reliées comprenant une section conique inférieure (12g) et au moins l'une :
    1. d'une partie cylindrique supérieure (12b) ; et
    2. d'une section de col cylindrique (12d) ;
    le navire de production, de stockage et de déchargement flottant (10) étant formé et agencé de manière à commander le pas, le roulis et le pilonnement en l'absence d'une colonne centrale rétractable ;
    b. une pluralité de colonnes montantes de production caténaire (90a, 90c) et / ou au moins une ligne d'ancrage (16) ;
    c. au moins une ailette radiale (84) ayant une forme d'un triangle droit dans une section transversale verticale de telle sorte qu'un bord inférieur (85) du triangle droit est coplanaire avec la surface inférieure (12g) de la coque (9a, 9b, 9c, 9d), l'au moins une ailette radiale (84) comprenant une extrémité distale (88) vers un sommet formé par le bord inférieur (85) et une hypoténuse (82) du triangle droit ; et une extrémité opposée à l'extrémité distale (88), l'extrémité étant orientée vers un sommet formé par l'hypoténuse (82) et un côté opposé du triangle droit, et l'au moins une ailette radiale (84) étant fixée de manière discontinue autour de la coque (9a, 9b, 9c, 9d) ;
    d. un espace (86a) agencé pour séparer l'au moins une ailette (84) de telle sorte qu'une partie de l'extrémité distale (88) de l'au moins une ailette (84) est interrompue,
    caractérisé par un autre espace (86b) formé entre une partie de l'extrémité opposée à l'extrémité distale (88) et au moins une partie de la coque (9a, 9b, 9c, 9d), l'au moins une partie de la coque (9a, 9b, 9c, 9d) et le côté opposé du triangle droit étant disposés l'un en face de l'autre ;
    l'autre espace (86b) recevant au moins l'une de la pluralité de colonnes montantes de production caténaire (90a, 90c) et / ou de l'au moins une ligne d'ancrage (16),
    e. la section conique inférieure (12e) fournissant des performances hydrodynamiques améliorées en masse par l'intermédiaire d'un amortissement linéaire et quadratique à la coque.
  2. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 1, comprenant en outre un bassin lunaire (92), dans lequel le bassin lunaire (92) s'ouvre à travers la surface inférieure (12g).
  3. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 1, dans lequel la coque (9a, 9b, 9c, 9d) comprend en outre un centre de gravité bas (87) assurant une stabilité inhérente au navire de production, de stockage et de déchargement flottant (10).
  4. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 1, comprenant au moins une ligne d'ancrage (16a, 16b, 16c, 16d) pour amarrer le navire de production, de stockage et de déchargement flottant (10) à un fond marin.
  5. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 1, comprenant au moins une colonne montante de production caténaire (90a, 90d) fixée à la surface inférieure (12g) en dessous d'une profondeur de transit du navire de production, de stockage et de déchargement flottant (10).
  6. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 1, comprenant au moins un réservoir de ballast (96) pour ballaster et déballaster le navire de production, de stockage et de déchargement flottant (10).
  7. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 1, comprenant un ensemble de connexion d'aussière mobile (40) monté sur la coque (9a, 9b, 9c, 9d).
  8. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 7, comprenant une plaque (50) fixée de manière pivotante à l'ensemble de connexion d'aussière mobile (40) par l'intermédiaire d'une manille de plaque (52), la plaque étant destinée à la fixation d'une aussière (18).
  9. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 8, dans lequel la plaque (50) a une forme généralement triangulaire avec un sommet de la forme triangulaire fixé à la manille de plaque (52), un premier trou (55a) adjacent à un autre point de la forme triangulaire de la plaque et un deuxième trou (55b) adjacent à un point final de la forme triangulaire de la plaque (50), le premier trou (55a) et le deuxième trou (55b) étant destinés à être fixés à l'aussière (18) avec un point de connexion double (19a, 19b).
  10. Navire de production, de stockage et de déchargement flottant (10) selon l'une quelconque des revendications 8 à 9, dans lequel l'ensemble de connexion d'aussière mobile comprend un canal tubulaire (42), un chariot (46) capturé et mobile à l'intérieur du canal tubulaire (42), et une manille de chariot (48) fixée au chariot (46), la plaque (50) étant fixée de manière pivotante à la manille de chariot (48) par l'intermédiaire de a manille de plaque (52).
  11. Navire de production, de stockage et de déchargement flottant (10) selon la revendication 1, dans lequel l'au moins une ailette radiale est configurée pour fournir des performances hydrodynamiques par amortissement linéaire et quadratique.
EP16756028.3A 2015-02-24 2016-01-27 Vaisseau flottant Active EP3261917B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/630,563 US9266587B1 (en) 2009-11-08 2015-02-24 Floating vessel
PCT/US2016/015159 WO2016137643A1 (fr) 2015-02-24 2016-01-27 Vaisseau flottant

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EP3261917A1 EP3261917A1 (fr) 2018-01-03
EP3261917A4 EP3261917A4 (fr) 2018-09-26
EP3261917B1 true EP3261917B1 (fr) 2021-12-08

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EP (1) EP3261917B1 (fr)
KR (1) KR102365576B1 (fr)
CN (1) CN107249977B (fr)
AU (1) AU2016223268B2 (fr)
BR (1) BR112017018128B1 (fr)
CA (1) CA2966003C (fr)
IL (1) IL251968B (fr)
MX (1) MX2017006314A (fr)
MY (1) MY192549A (fr)
PH (1) PH12017500846A1 (fr)
RU (1) RU2684939C2 (fr)
SG (1) SG11201706732TA (fr)
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US10494064B2 (en) * 2017-10-30 2019-12-03 Jurong Shipyard Pte Ltd Floating driller
US10494060B2 (en) 2017-09-14 2019-12-03 Jurong Shipyard Pte Ltd Buoyant structure
EP2741955B1 (fr) * 2011-08-09 2019-08-28 Jurong Shipyard Pte. Ltd. Dépôt offshore flottant stable
US10450038B2 (en) * 2017-06-27 2019-10-22 Jurong Shipyard Pte Ltd Continuous vertical tubular handling and hoisting buoyant structure
KR102528170B1 (ko) * 2017-11-22 2023-05-02 주롱 쉽야드 피티이. 엘티디. 부양 구조물을 사용하는 근해 부유 석유 생산, 저장 및 하역 방법
CN107914834B (zh) * 2017-12-12 2023-08-29 中海油能源发展股份有限公司 一种多边形浮式生产储油装置

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IL251968B (en) 2021-09-30
CN107249977B (zh) 2022-08-09
IL251968A0 (en) 2017-06-29
SG11201706732TA (en) 2017-09-28
KR102365576B1 (ko) 2022-02-18
RU2017133098A (ru) 2019-03-25
PH12017500846A1 (en) 2017-10-30
BR112017018128A2 (pt) 2018-04-10
AU2016223268A1 (en) 2017-05-18
CN107249977A (zh) 2017-10-13
EP3261917A4 (fr) 2018-09-26
MY192549A (en) 2022-08-28
MX2017006314A (es) 2018-02-16
KR20170121177A (ko) 2017-11-01
RU2017133098A3 (fr) 2019-03-25
CA2966003A1 (fr) 2016-09-01
WO2016137643A1 (fr) 2016-09-01
BR112017018128B1 (pt) 2023-03-21
EP3261917A1 (fr) 2018-01-03
AU2016223268B2 (en) 2020-01-23
RU2684939C2 (ru) 2019-04-16
CA2966003C (fr) 2023-02-28

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