WO2022067410A1 - Balcão de riser polivalente (polyvalent riser balcony) - Google Patents
Balcão de riser polivalente (polyvalent riser balcony) Download PDFInfo
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- WO2022067410A1 WO2022067410A1 PCT/BR2021/050401 BR2021050401W WO2022067410A1 WO 2022067410 A1 WO2022067410 A1 WO 2022067410A1 BR 2021050401 W BR2021050401 W BR 2021050401W WO 2022067410 A1 WO2022067410 A1 WO 2022067410A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- riser
- balcony
- polyvalent
- counter
- fpso
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 claims abstract description 38
- 238000013461 design Methods 0.000 claims abstract description 28
- 238000011161 development Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 238000007667 floating Methods 0.000 abstract description 25
- 238000010276 construction Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
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- AJXONGJARXYRDO-YVNDNENWSA-N (4s)-4-amino-5-[[(2s)-1-[[(2s)-3-carboxy-1-[[(1s)-1-carboxy-2-methylpropyl]amino]-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-5-oxopentanoic acid Chemical compound CC(C)[C@@H](C(O)=O)NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CO)NC(=O)[C@@H](N)CCC(O)=O AJXONGJARXYRDO-YVNDNENWSA-N 0.000 description 4
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- 238000004873 anchoring Methods 0.000 description 2
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- 238000005086 pumping Methods 0.000 description 2
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Classifications
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
-
- 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
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
- E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
-
- 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
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
-
- 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]
-
- 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
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
Definitions
- the object of this invention is the design of a riser counter, a support structure located on the side of an FPSO, and the anticipated sequencing of the functions of the wells connected to it, even before the discovery of the field; consequently, without having the definition of the reservoir drainage plan and the subsea layout.
- the so-called Polyvalent Riser Balcony can be applied in any project for the development of new offshore fields.
- connection structure between the risers (suspended sections of the pipes that interconnect the subsea production lines to the floating units) and the ship depends on the anchoring system.
- This structure can be presented in two basic configurations: riser counter and turret.
- the risers are normally installed on a platform on the side of the unit, close to the main deck, which is called the riser counter, as reported in "Structural Analysis of Risers Support", Project of Graduation, UFRJ/POLI/Naval and Oceanic Engineering, 2015.
- the risers are coupled to the FPSOs through two riser balconies, called the lower riser balcony and the riser balcony higher.
- the risers are connected to the FPSO hull through the lower riser balcony, passing through the multifunctional bell mouths, the which are responsible for locking and directing the risers.
- the upper riser counter supports the ends of the risers and connects them to the process plant.
- the risers are locked to the upper riser counter by means of hang-offs, being directed to the production manifold.
- the risers are connected between the two counters by means of l-tubes.
- Each well connected to the FPSO has a specific function in the drainage network of the deposit, seeking to optimize oil extraction.
- the input sequencing and connection of the wells on the riser counter affects the entire project of production and injection lines and their interconnections with the process plant. Therefore, the definition of the production system project can only be completed after the definition of the subsea layout and the respective sequencing of functions of the riser stand.
- the traditional design of the riser counter follows the sequence: (1) discovery and delimitation of the field, (2) design of the drainage network of the deposit, (3) design of the submarine layout project, (4) definition of the sequence of functions of the wells on the riser counter.
- the object of this invention is the design of a polyvalent riser balcony (Polyvalent Riser Balcony), which allows the sequencing of well functions (injector, producer, WAG) in advance, even before the discovery of the field; consequently, without having the definition of the reservoir drainage plan and the subsea layout.
- Polyvalent riser balcony Polyvalent Riser Balcony
- the standardized riser counter makes the design of the FPSO production system independent of the design of the well network and the subsea project.
- the design of the FPSO project, as well as its construction and assembly can be significantly anticipated, with great value creation for projects to develop the production of a field, in addition to promoting a very high financial gain for the project.
- the upper riser counter consists of up to 5 cells (standard unit that is repeated along the length of the counter), each cell containing a fixed combination of wells, the set of cells occupying up to 52 slots .
- the multipurpose desk can be designed and pre-defined with a smaller number of cells and slots.
- the main scope of the Lula Alto project is a subsea connection to a chartered FPSO, consisting of 11 producer wells (satellites) and 6 injectors, 4 of which are satellites and 2 connected by an injection manifold, prepared to operate as WAG (Water Alternating Gas - alternating injection of water and gas).
- the wells are connected via flexible flowlines to flexible risers, supported in a lazy-wave configuration.
- alternative systems of coupled risers SLWR - Steel Lazy Wave Risers
- BSR - Buoyancy Supported Risers and MHR - Multi Hybrid Risers were based on a coupled flexible riser system, which features a lazy-wave configuration for production, service, water injection and gas injection risers, and a free suspension catenary configuration for electro-hydraulic umbilicals. (EHU).
- the riser bar of the FPSO Cidade de Maricá has 55 slots and the connection of additional wells is feasible.
- the design flexibility is reinforced by the selection of flexible flowlines, which allows future conversions from producing wells to injectors, according to the best production strategy.
- the Lula Alto project involved the need to acquire in advance the FPSO's and some LLI's (Long Lead Items), which required the definition at an early stage of the scope and characteristics of the project with only the initial results of the reservoir.
- the work described in “Lula Alto - Strategy and Execution of a Megaproject in Deep Water Santos Basin Pre-Salt”, OTC-28164-MS, October 2017 uses a chartered unit and, consequently, the counter of riser already existing in the FPSO.
- this invention there is the conception of a pre-specified counter, Polyvalent Riser Balcony, to be incorporated in projects of construction and assembly of FPSOs.
- the slot configuration of the work in question is based on the use of flexible risers, while in the present invention the slot configuration has flexibility for rigid and flexible riser.
- the work has in advance the definition of the reservoir drainage plan and the submarine layout, unlike the present invention.
- the invention refers to a method and a device for use in loading oil from a subsea oil deposit into an FPSO, in which one or more risers are employed.
- the aim of the invention is to simplify the type of oil loading, especially from a subsea oil deposit, avoiding the need for expensive and complicated tower designs on special ships.
- the method and device of the invention are especially suitable for use in connection with ships that employ dynamic positioning, eliminating the need for any type of mooring, which results in additional cost savings.
- the riser balcony is placed close to the outside of the ship's hull, in the midship area, where the ship's movements due to waves are as small as possible.
- the surface level of the riser counter is at the level of the main deck of the ship and is an area for system operation and maintenance.
- Quick coupling/uncoupling elements (QC / DC) are provided on the counter at the level of the counter deck. The upper parts of these elements are fixed to the top of the counter, permanently connected to ducts that go to the vessel's processing area.
- Coupling elements are designed to receive up to four lines of flow per element. Elements are mechanically connected for simultaneous release, or can be released separately.
- a floating element is placed under the riser counter. All risers and umbilicals pass through the seaside floating element to the underside of the coupling elements.
- guide pins are provided for coupling purposes. The top of the guide pins is designed for connection to the wires from the counter winches.
- the floating element will have a free edge that abuts the underside of the counter. The bottom of the floating element will have sufficient buoyancy to keep the element positioned under the counter buoyant.
- the floating element When the floating element is connected to the ship, or to the balcony, it is fixed to the conductor housing of the balcony at the top, and the lower part of the floating element is connected to the ship by means of simple locking devices which are located at the front ends. and back of the floating element.
- a protective device In order to protect the floating element and the ship side, a protective device is provided between the ship side and the floating element.
- the risers inlet At the bottom of the floating element, the risers inlet are protected with stoppers. of bending.
- One of the essential features of the invention is that the connection to the risers can be released very quickly through the coupling elements if a critical situation arises, avoiding breakage of the risers, pollution or substantial mechanical destruction.
- WO1997007016A1 The method and device disclosed in WO1997007016A1 are applicable for use in connection with ships employing dynamic positioning, unlike the present invention. Another difference with this invention is that in the aforementioned work a floating element is placed under the riser counter, through which the risers and umbilicals pass.
- the present invention describes an upper riser counter, consisting of a set of cells, each cell containing a fixed combination of wells, and a lower riser counter, where three different configurations are possible.
- the invention refers to the design of a riser counter for a floating unit, which comprises a support portion adapted to support at least one riser.
- the riser counter further comprises a connection part adapted to connect the support part to the floating unit.
- the support portion may comprise one or more members that are separate from one or more members that form the connecting portion.
- the support portion and the connecting portion may form a unitary component.
- the riser counter extends in a longitudinal direction and in a transverse direction.
- the riser counter is further extended in a vertical direction, with each of the connecting plates still extending substantially in a vertical direction.
- each of the riser counter is adapted to be located below the surface of standing water.
- the work reveals that other riser counter modalities can be adapted to be located on or above the surface of still water.
- Fig. 1 of the work illustrates that each of the risers can comprise a corresponding upper part, which extends from the riser counter to another part of the floating unit.
- the upper portion may form a unitary component with the corresponding portion of the riser extending downwardly from the riser counter.
- the riser counter comprises a support portion adapted to support at least one riser.
- a support portion may be adapted to support at least three risers, or even eight risers.
- the upper riser counter consists of a set of up to 5 cells, which is repeated along the length of the counter, each cell containing a fixed combination of wells, the set of cells occupying up to 52 slots, with flexibility for rigid and flexible riser.
- the lower riser balcony can have three different configurations, namely preferential balcony on port, preferential balcony on starboard and central UEP balcony (port/starboard).
- the present invention deals with the design of a riser counter for a floating unit of the FPSO type and the sequencing of the functions of the wells interconnected to the FPSO in advance, even before the discovery of the field; that is, without having the definition of the reservoir drainage plan and the subsea layout.
- the application of the invention will allow for the anticipation of the FPSO project, as well as its construction and assembly, with great value generation for the development plans for the production of a field.
- Figure 1 which illustrates an FPSO-type floating unit, highlighting the riser balcony.
- Figure 2. which illustrates an FPSO type floating unit, highlighting the riser balcony and the arrival of the risers.
- Figure 3 which illustrates an FPSO-type floating unit, highlighting the upper riser balcony (1).
- Figure 4. which illustrates an FPSO-type floating unit, highlighting the lower riser balcony (2).
- Figure 5 which illustrates the Polyvalent Riser Balcony, object of this invention. Its configuration has a fixed sequencing, but with the necessary flexibility for the drainage mesh. Particularly, the black and white circles represent the interconnections of producer and injection wells, respectively, considering also 5 flexible interconnections (supports with dual function that allow both production and injection wells to be interconnected).
- Figure 5 also shows a grouping of 5 wells, called cells, composed of 2 producer wells + 2 injection wells + 1 flexible well (producer/injector). In total, the Polyvalent Riser Balcony can allow up to 5 cells and 2 extra injection wells.
- Figure 5 also identifies the types of risers used in the sequencing of the multipurpose counter, which will allow the connection of both production and injection risers, as well as other functions necessary for the project: service lines, gas lift manifolds, export/ i import of gas, control and power umbilicals (pumping or processing systems), ESDV and PRM (Permanent Reservoir Monitoring) control umbilicals.
- Figure 6 which illustrates the Polyvalent Riser Balcony, object of this invention, with the upper riser counter consisting of up to 5 cells (standard unit that is repeated along the length of the counter), plus 2 extra injection wells, each cell containing a fixed combination of wells, the set of cells, including the 2 extra injection wells, occupying up to 52 slots, with flexibility for rigid and flexible riser.
- Figure 6 also shows a pre-defined sequence with 10 production wells + 6 WAG Loop (12 injection wells) + 5 Flexible (which can be a production well convertible into an injection well, or a pair of injection wells in a WAG Loop).
- Figure 6 also identifies the types of risers used in the sequencing of the multipurpose counter, which will allow the connection of both production and injection risers, as well as other functions necessary for the project: service lines, gas lift manifolds, export/ i import of gas, control and power umbilicals (pumping or processing systems), ESDV and PRM (Permanent Reservoir Monitoring) control umbilicals.
- Figure 7 which illustrates an FPSO-type floating unit, with emphasis on the configuration of well functions on the Polyvalent Riser Balcony's upper riser balcony.
- the green and red symbols represent the interconnections of producing and injecting wells, respectively.
- Figure 8 which illustrates three alternative configurations for the lower riser balcony, in relation to the preferential arrival edge, namely: Type 1 - preferential balcony on the port side, in which the largest number of risers interconnected by port from azimuths (direction of arrival) of risers previously defined in the lower balcony, Type 2 - preferential balcony by starboard, in which the largest number of risers interconnected by starboard is defined from the azimuths of the risers previously defined in the lower balcony, and Type 3 - central UEP balcony (port/starboard) , in which a balanced distribution of the number of risers is defined for the two sides (port and starboard), based on the azimuths of the risers previously defined on the lower balcony.
- FIG. 9 which illustrates the Polyvalent Riser Balcony with alternative configurations for the lower riser balcony.
- FIG 10 which illustrates the Polyvalent Riser Balcony with alternative configurations for the lower riser balcony, including entry edge flexibilities on the lower balcony.
- Figure 11 which illustrates the Polyvalent Riser Balcony with the alternative Type 1 configuration for the lower riser balcony, including entry edge flexibilities on the lower balcony.
- FIG 12 which illustrates the Polyvalent Riser Balcony with the Type 2 alternative configuration for the lower riser balcony, including entry edge flexibilities on the lower balcony
- FIG 13 which illustrates the Polyvalent Riser Balcony with the Type 3 alternative configuration for the lower riser balcony, including the entry edge flexibilities on the lower balcony.
- the present invention deals with the design of a riser counter for a floating production unit of the FPSO type and the sequencing in advance of the functions of the wells to be connected, without having the definition of the reservoir drainage plan and the layout submarine.
- the riser counter of an FPSO is a support structure, located on the side of the ship, where the lines that connect the wells to the production system located on the deck arrive, as illustrated in Figures 1 and 2.
- the inlet sequencing and connection of wells on the riser counter affects the entire project of production lines and injection in the process plant.
- the Polyvalent Riser Balcony, object of this invention has as its main attribute to be specified in advance and independently of the definition of the submarine layout, with sufficient flexibility to efficiently meet numerous well lease plans and subsea projects.
- the sequencing of well functions in the upper riser counter affects and defines the entire surface plant design.
- the lower riser balcony is responsible only for receiving the flow lines and leading them to the upper balcony and fundamentally depends on the direction of arrival of the wells. It therefore has a varied design, depending on the relative position between the FPSO and the field.
- the upper and lower riser balconies are shown in Figures 3 and 4, respectively.
- the upper riser counter is made up of up to 5 cells (standard unit that is repeated along the length of the counter), each cell containing a fixed combination of wells.
- the set of cells there are 2 extra injection wells, occupying a total of up to 52 slots, with flexibility for rigid and flexible risers, as can be seen in Figures 5 to 7. Analyzes performed (back tests) indicate that the configuration can flexibly suit a wide range of drainage plans.
- the multipurpose desk can be designed and pre-defined with a smaller number of cells and slots.
- Type 1 - preferential balcony by port in which the largest number of risers being interconnected by port from azimuths is defined (arrival direction ) of the risers previously defined in the lower balcony
- Type 2 - preferential balcony by starboard in which the largest number of risers being interconnected by starboard is defined from the azimuths of the risers previously defined in the lower balcony
- Type 3 - central UEP balcony in which a balanced distribution of the number of risers is defined for the two edges (port and starboard) from the azimuths of the risers previously defined on the lower balcony, as can be seen in Figures 8 to 13.
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
- Artificial Fish Reefs (AREA)
- Macromonomer-Based Addition Polymer (AREA)
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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- Emergency Lowering Means (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2306046.0A GB2615673A (en) | 2020-10-02 | 2021-09-21 | Polyvalent riser balcony |
CN202180080841.6A CN117120330A (zh) | 2020-10-02 | 2021-09-21 | 多功能立管平台 |
NO20230486A NO20230486A1 (en) | 2020-10-02 | 2021-09-21 | Polyvalent riser balcony |
US18/029,498 US20230374870A1 (en) | 2020-10-02 | 2021-09-21 | Polyvalent riser balcony |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR102020020314-2A BR102020020314A2 (pt) | 2020-10-02 | 2020-10-02 | Balcão de riser polivalente (polyvalent riser balcony) |
BR1020200203142 | 2020-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022067410A1 true WO2022067410A1 (pt) | 2022-04-07 |
Family
ID=80949118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2021/050401 WO2022067410A1 (pt) | 2020-10-02 | 2021-09-21 | Balcão de riser polivalente (polyvalent riser balcony) |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230374870A1 (pt) |
CN (1) | CN117120330A (pt) |
BR (1) | BR102020020314A2 (pt) |
GB (1) | GB2615673A (pt) |
NO (1) | NO20230486A1 (pt) |
WO (1) | WO2022067410A1 (pt) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9005039A (pt) * | 1990-10-09 | 1993-03-09 | Petroleo Brasileiro Sa | Plataforma semi-submersivel de producao |
WO1997007016A1 (en) * | 1995-08-18 | 1997-02-27 | Kvaerner Engineering A.S | Method and device for petroleum loading |
BRPI0408048A (pt) * | 2003-02-28 | 2006-02-14 | Modec International L L C | método para acoplar uma pluralidade de condutos ou ascendentes de ligação, e embarcação flutuante |
WO2014170375A1 (en) * | 2013-04-16 | 2014-10-23 | Gva Consultants Ab | Conduit balcony |
WO2019044194A1 (ja) * | 2017-08-31 | 2019-03-07 | 三井E&S造船株式会社 | ライザー管支持構造 |
Family Cites Families (8)
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BR9301600A (pt) * | 1993-04-20 | 1994-11-08 | Petroleo Brasileiro Sa | Sistema de tensionamento de tubos rígidos ascendentes por meio de grelha articulada |
JP3050278U (ja) * | 1997-12-27 | 1998-06-30 | 船井電機株式会社 | ビデオテープ再生装置 |
US7537416B2 (en) * | 2003-05-30 | 2009-05-26 | Chevron Usa Inc | Riser support system for use with an offshore platform |
US6884003B2 (en) * | 2003-06-16 | 2005-04-26 | Deepwater Technologies, Inc. | Multi-cellular floating platform with central riser buoy |
US8522880B2 (en) * | 2008-04-29 | 2013-09-03 | Itrec B.V. | Floating offshore structure for hydrocarbon production |
KR101735901B1 (ko) * | 2011-10-05 | 2017-05-15 | 씨호스 이퀴프먼트 코포레이션 | 정지된 부유식 선박으로부터 복수의 해저 유정을 시추하기 위한 시추 방법, 해양 시추 선박, 시추 라이저 반송 시스템 및 해양 선박 |
US9976364B2 (en) * | 2016-09-07 | 2018-05-22 | Frontier Deepwater Appraisal Solutions LLC | Floating oil and gas facility with a movable wellbay assembly |
US11274504B2 (en) * | 2020-05-07 | 2022-03-15 | Subsea 7 Do Brasil Servicos Ltda | Top connections of subsea risers |
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2020
- 2020-10-02 BR BR102020020314-2A patent/BR102020020314A2/pt unknown
-
2021
- 2021-09-21 US US18/029,498 patent/US20230374870A1/en active Pending
- 2021-09-21 CN CN202180080841.6A patent/CN117120330A/zh active Pending
- 2021-09-21 WO PCT/BR2021/050401 patent/WO2022067410A1/pt active Application Filing
- 2021-09-21 NO NO20230486A patent/NO20230486A1/en unknown
- 2021-09-21 GB GB2306046.0A patent/GB2615673A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9005039A (pt) * | 1990-10-09 | 1993-03-09 | Petroleo Brasileiro Sa | Plataforma semi-submersivel de producao |
WO1997007016A1 (en) * | 1995-08-18 | 1997-02-27 | Kvaerner Engineering A.S | Method and device for petroleum loading |
BRPI0408048A (pt) * | 2003-02-28 | 2006-02-14 | Modec International L L C | método para acoplar uma pluralidade de condutos ou ascendentes de ligação, e embarcação flutuante |
WO2014170375A1 (en) * | 2013-04-16 | 2014-10-23 | Gva Consultants Ab | Conduit balcony |
WO2019044194A1 (ja) * | 2017-08-31 | 2019-03-07 | 三井E&S造船株式会社 | ライザー管支持構造 |
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GB202306046D0 (en) | 2023-06-07 |
GB2615673A (en) | 2023-08-16 |
NO20230486A1 (en) | 2023-04-28 |
US20230374870A1 (en) | 2023-11-23 |
CN117120330A (zh) | 2023-11-24 |
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