WO2016074050A1 - Floating element for an anchoring system for undersea oil exploration lines - Google Patents
Floating element for an anchoring system for undersea oil exploration lines Download PDFInfo
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- WO2016074050A1 WO2016074050A1 PCT/BR2015/000111 BR2015000111W WO2016074050A1 WO 2016074050 A1 WO2016074050 A1 WO 2016074050A1 BR 2015000111 W BR2015000111 W BR 2015000111W WO 2016074050 A1 WO2016074050 A1 WO 2016074050A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/48—Sea-anchors; Drogues
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
- B63B22/04—Fixations or other anchoring arrangements
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- 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
Definitions
- the present invention relates to a floating element for anchor systems of submerged oil exploration lines. More specifically, the present invention relates to a floating element used as an intermediate supporting element arranged submerged between a floating oil production and storage platform and the seabed.
- FPSO oil production and storage vessel
- Floating platforms are connected to subsea exploration equipment by pipeline lines, and such lines are connected to anchor systems that enable their proper positioning relative to the floating platform and the seabed,
- the known mooring systems may have intermediate floating elements "also known as” balls * to act as a kind of submerged support arranged in the body of water to support and fixing lines (pipes, risers, etc.). These elements have the The objective is to reduce the dynamic excitations transmitted by the floating platform movement.
- a known and widely used intermediate floating element comprises a ring shaped intermediate float. Occurs This type of float has low rotational stability, which has an impact on both installation and operation of the lines.
- these buoys generally require the use of high rigidity tendons, commonly of high weight wire ropes, which eventually require special vessels for lifting and offshore handling.
- This type of equipment has high cost and environmental restrictions of operation.
- the high stiffness requires Uno adjustment in the length of the tendons after installation to achieve adequate load distribution with the adjacent tendon. As the adjustment of the tendon length is performed by subsea hydraulic jacks, the operating costs are even higher.
- WO 00/31372 An attempt to provide an improved intermediate element is described in WO 00/31372.
- This document shows a support element comprising two anchor straps connected by a beam element at whose ends are provided tanks that act as balls.
- the beam element basically comprises two tubular structures and has bows and hooks for securing derisers lines.
- the present invention achieves these and other objects by means of a floating element for anchor systems for submerged oil exploration lines comprising a central float and two end floats.
- the center float has an elongated beam shape and is configured to connect piping lines that connect to a floating platform and piping lines that connect to the subsea bed.
- the first end float which is attached to one end of the center float, is configured to connect a first set of anchor tendons.
- the second end float which is attached to the other end of the central float, is configured to connect a second set of anchor tendons.
- the floating element has high rotation stability, eliminating the use of tendons of high rigidity.
- the first and second sets of anchor tendons are made of synthetic cables. Preferably polyester cables.
- the present invention provides a number of advantages associated with cost savings and ease of operation.
- each end float has a substantially trapezoidal shape, with the upper trapezoidal side face to the corresponding end of the centrai float.
- the floats comprise compartmentalized hulls in watertight tanks, which allow for a balance of weights by controlling the flooding capacity of the compartments.
- Figure 1 is a perspective view of a floating element according to the preferred embodiment of the present invention.
- Figure 2 is another perspective view of the floating element according to the preferred embodiment of the present invention.
- Figure 3 is another perspective view of the floating element according to the preferred embodiment of the present invention with piping and anchor lines attached to the device;
- Figure 4 is yet another perspective view of the floating element according to the preferred embodiment of the present invention with piping and anchor lines attached to the device;
- the floating element comprises at least three floats, one elongated central float 1 and two end floats 2, 3 forming a submerged ball. that is anchored to the seabed by tendons.
- the floating element acts as an intermediate element between the floating platform and the seabed.
- the central float 1 has an elongated beam shape which allows for high stability of rotation.
- the end floats 2, 3 each have a substantially trapezoidal shape, with the upper face of the trapezius facing the corresponding end of the central float 1,
- the three floats 1, 2 and 3 are formed by compartmentalized hulls in watertight tanks, so that the flooding capacity can be controlled to achieve a weight balance.
- Central float 1 is configured to connect piping lines that are connected to the floating platform (lines 4 in figures 3 and 4) and piping lines that are connected to the subsea bed (lines S in figures 3 and 4).
- Each of the end floats 2, 3 is configured to connect a set of tendons used for anchoring the floating element to the sea floor. Due to the high rotational stability of the floating element of the present invention, the tendons used may be synthetic cables, such as polyester cables,
- the high rotational stability is obtained by increasing the vertical distance between the buoyancy center of buoyancy 1, 2, 3 and the sum of forces acting on the subsea line system (eg, the weight of the risers, flexible jumpers and anchor tendons).
- Synthetic cable tendon lengths can be achieved using only the anchor handling tug supply vessel (AHTS) type winch AHTS type vessels allow for less costly operation and with fewer restrictions imposed by environmental considerations.
- AHTS anchor handling tug supply vessel
- Another advantage of using synthetic cables is related to the monitoring of loads acting on the tendons. Due to the low rigidity of the synthetic cables, the load can be indirectly obtained by deforming the tensioned cable.
- a first set of synthetic cable tendons 6 is connected to one of the end floats 2 and a second set of synthetic cable tendons 7 is connected to the other of end floats 3 ,
- Synthetic cable tendon assemblies 6, 7 are connected to the seabed by anchor meb, such as torpedo piles.
- anchor meb such as torpedo piles.
- the construction of the floating element of the present invention has an intrinsic advantage associated with the standardization of its component elements, since such components can be used regardless of the arrangement of risers and jumpers, the amount and dimensions of flexible or rigid lines, and regardless of characteristics. the water slide where the system will be used.
- the floating element construction of the present invention allows for great flexibility in the arrangement and arrangement of piping lines 4, 5 and anchor tendons 6.7.
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- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
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Abstract
Description
ELEMENTO FLUTUANTE PARA SISTEMA DE ANCORAGEM Dl UNHAS SUBMERSAS DE EXPLORAÇÃO DE PETRÓLEO CAMPO DA INVENÇÃO FLOATING ELEMENT FOR ANCHORAGE SYSTEM Nails Oil Exploration Subfields FIELD OF THE INVENTION
[004]. A presente Invenção refere-se a um elemento flutuante pêra sistemas de ancoragem de linhas submersas de exploração de petróleo. Mais especificamente, a presente invenção refere-se a um elemento flutuante usado como elemento de sustentação intermediário disposto submerso entre uma plataforma flutuante de produção e estocagem de petróleo e o fundo do mar. [004] The present invention relates to a floating element for anchor systems of submerged oil exploration lines. More specifically, the present invention relates to a floating element used as an intermediate supporting element arranged submerged between a floating oil production and storage platform and the seabed.
FUNDAMENTOS DA INVENÇÃO BACKGROUND OF THE INVENTION
[002]. Existem diversos tipos de plataformas para extração e produção de petróleo, sendo que cada tipo é utilizado para uma determinada profundidade. [002] There are several types of platforms for oil extraction and production, each type being used to a certain depth.
[003]. Atualmente, a mais utilizada para grandes profundidades é a embarcação de produção e estocagem de petróleo (FPSO)t que consiste em um navio de grande porte com capacidade para produzir, processar e armazenar petróleo e gás natural [003] Currently the most widely used for deep water is the oil production and storage vessel (FPSO) t which consists of a large vessel capable of producing, processing and storing oil and natural gas.
[004]. As plataformas flutuantes são conectadas aos equipamentos de exploração submarinos por melo de linhas de tubulação, sendo que tais linhas são conectadas a sistemas de ancoragem que possibilitam seu posicionamento adequado em relação è plataforma flutuante e ao fundo do mar, [004] Floating platforms are connected to subsea exploration equipment by pipeline lines, and such lines are connected to anchor systems that enable their proper positioning relative to the floating platform and the seabed,
[005]. Os sistemas de ancoragem conhecidos podem apresentar elementos flutuantes intermediários» também conhecidos como "bolas*, para atuar como uma espécie de suporte disposto submerso no corpo d'água para apoio e fixação das linhas (tubulações, risers, etc). Esses elementos têm como objetivo a redução das excitações dinâmicas transmitidas pelo movimento da plataforma flutuante. [005] The known mooring systems may have intermediate floating elements "also known as" balls * to act as a kind of submerged support arranged in the body of water to support and fixing lines (pipes, risers, etc.). These elements have the The objective is to reduce the dynamic excitations transmitted by the floating platform movement.
[006]. Um elemento flutuante intermediário conhecido e largamente utilizado compreende uma boia intermediária em formato de anel. Ocorre que esse tipo de boia apresenta baixa estabilidade a rotação, o que possui Impacto tanto na instalação como na operação das linhas. Além disso, para que seja atingida a estabilidade necessária para adequada sustentação de rtsers, essas bóias geralmente exigem o uso de tendões de elevada rigidez, comumente cabos de aço, que possuem peso elevado e acabam por demandar embarcações especiais para içamento e manuseio offshore. Esse tipo de equipamento tem alto custo e restrições ambientais de operação. Além disso, a elevada rigidez exige um ajuste Uno no comprimento dos tendões após a instalação para que seja alcançada uma adequada distribuição de cargas com o tendão adjacente. Como o ajuste no comprlmenio dos tendões é realizado por macacos hidráulicos submarinos, os custos de operação fomam~se ainda mais altos. [006] A known and widely used intermediate floating element comprises a ring shaped intermediate float. Occurs This type of float has low rotational stability, which has an impact on both installation and operation of the lines. In addition, in order to achieve the stability required for proper rtser support, these buoys generally require the use of high rigidity tendons, commonly of high weight wire ropes, which eventually require special vessels for lifting and offshore handling. This type of equipment has high cost and environmental restrictions of operation. In addition, the high stiffness requires Uno adjustment in the length of the tendons after installation to achieve adequate load distribution with the adjacent tendon. As the adjustment of the tendon length is performed by subsea hydraulic jacks, the operating costs are even higher.
[007], Uma tentativa de prover um elemento intermediário aperfeiçoado é descrita no documento WO 00/31372. Esse documento mostra um elemento de suporte compreendendo dois tirantes de ancoragem ligados por um elemento em viga em cujas extremidades são previstos tanques que atuam como bolas. O elemento em viga compreende basicamente duas estruturas tubulares e possui arcos e ganchos para prenderas linhas derisers. [007] An attempt to provide an improved intermediate element is described in WO 00/31372. This document shows a support element comprising two anchor straps connected by a beam element at whose ends are provided tanks that act as balls. The beam element basically comprises two tubular structures and has bows and hooks for securing derisers lines.
[083] Embora tal solução da técnica anterior possua vantagens no tocante a estabilidade a rotação, trata~se de uma construção de alta complexidade, que exibe pouca flexibilidade em relação à fixação das linhas, além de fazer uso de um esquema especifico de ancoragem. Although such a prior art solution has advantages with respect to rotation stability, it is a high complexity construction which exhibits little flexibility with respect to line attachment and makes use of a specific anchoring scheme.
[009] Assim, permanece na técnica a necessidade de um elemento flutuante intermediário que possua elevada estabilidade a rotação, permita diferentes arranjo de fixação de linhas de risers e ancoragem e que elimine a necessidade de uso de tendões de cabo de aço. Thus, there remains a need in the art for an intermediate floating element which has high rotational stability, permits different arrangement of riser and anchor lines and eliminates the need for the use of wire rope tendons.
OBJETIVOS DA INVENÇÃO OBJECTIVES OF THE INVENTION
[0010]. Assim, é um objetivo da presente invenção proporcionar um elemento flutuante para sistemas de ancoragem de linhas submersas de exploração de petróleo que apresente elevada estabilidade de rotação, dispensando o uso de tendões de cabo de aço. [0010] Thus, it is an object of the present invention to provide a floating element for anchoring systems of submerged oil exploration lines that has high rotational stability, eliminating the use of wire rope tendons.
[0011]. É outro dos objetivos da Invenção proporcionar um elemento flutuante para sistemas de ancoragem de linhas submersas de exploração de petróleo que possua uma construção simples e económica, [0011] It is another object of the invention to provide a floating element for submerged oil exploration mooring systems which is simple and economical to construct,
[0012]. É outro dos objetivos da Invenção proporcionar um elemento flutuante para sistemas de ancoragem de linhas submersas de exploração de petróleo que. permita flexibilidade no arranjo das linhas de tubulação e de ancoragem. [0012] It is another object of the Invention to provide a floating element for submerged oil exploration line anchoring systems which. allow flexibility in arrangement of piping and anchor lines.
SUMÁRIO DA INVENÇÃO SUMMARY OF THE INVENTION
[0013], A presente Invenção atinge esses e outros objetivos por meio de um elemento flutuante para sistemas de ancoragem para linhas submersas de exploração de petróleo que compreende um flutuador central e dois flutuadores de extremidade. The present invention achieves these and other objects by means of a floating element for anchor systems for submerged oil exploration lines comprising a central float and two end floats.
[0014]. O flutuador centra) possui um formato de viga alongada e é configurado para conectar as linhas de tubulação que se conectam a uma plataforma flutuante e as linhas de tubulação que se conectam ao leito submarino. [0014] The center float has an elongated beam shape and is configured to connect piping lines that connect to a floating platform and piping lines that connect to the subsea bed.
[0015]. O primeiro flutuador de extremidade, que é ligado a uma extremidade do flutuador centrai, é configurado para conectar um primeiro conjunto de tendões de ancoragem. [0015] The first end float, which is attached to one end of the center float, is configured to connect a first set of anchor tendons.
[0016]. O segundo flutuador de extremidade, que é ligado a outra extremidade do flutuador central, ê configurado para conectar um segundo conjunto de tendões de ancoragem. [0016] The second end float, which is attached to the other end of the central float, is configured to connect a second set of anchor tendons.
[0017]. O elemento flutuante possui alta estabilidade a rotação, dispensando o uso de tendões de elevada rigidez. [0017] The floating element has high rotation stability, eliminating the use of tendons of high rigidity.
[0018]. Os primeiro e segundo conjuntos de tendões de ancoragem sâo formados por cabos sintéticos. Preferencialmente, cabos de poliéster. [0018] The first and second sets of anchor tendons are made of synthetic cables. Preferably polyester cables.
[0019]. Ao permitir o uso de cabos sintéticos em substituição aos cabos de aço normalmente utilizados por sistemas de tendões de ancoragem, a presente invenção possibilita uma séria de vantagens associadas á economia de custo e facilidade de operação. [0019] By allowing the use of synthetic cables in place of cables Steel bars commonly used by anchor tendon systems, the present invention provides a number of advantages associated with cost savings and ease of operation.
[0020] Na concretização preferida da presente invenção* cada um dos flutuadores de extremidade possui um formato substancialmente trapezoidal, com a face superior do trapézio voltada para a extremidade correspondente do flutuador centrai. [0020] In the preferred embodiment of the present invention * each end float has a substantially trapezoidal shape, with the upper trapezoidal side face to the corresponding end of the centrai float.
[0021]. Também na concretização preferida, os flutuadores compreendem cascos compartimentados em tanques estanques, o que permite obter um equilíbrio de pesos pelo controle da capacidade de alagamento dos compartimentos. [0021] Also in the preferred embodiment, the floats comprise compartmentalized hulls in watertight tanks, which allow for a balance of weights by controlling the flooding capacity of the compartments.
Breve Descrição doa Desenhos Brief Description of Drawings
[ 022]. A presente invenção será descrita a seguir com mais detalhes, com referências aos desenhos anexos, nos quais: [022]. The present invention will be described in more detail below with reference to the accompanying drawings in which:
[0023], A Figura 1 é uma vista em perspectiva de um elemento flutuante de acordo com a concretização preferenciai da presente invenção; Figure 1 is a perspective view of a floating element according to the preferred embodiment of the present invention;
10024]. A Figura 2 é outra vista em perspectiva do elemento flutuante de acordo com a concretização preferencial da presente invenção; 10024]. Figure 2 is another perspective view of the floating element according to the preferred embodiment of the present invention;
[0025]. A Figura 3 é outra vista em perspectiva do elemento flutuante de acordo com a concretização preferencial da presente invenção, com linhas de tubulação e ancoragem fixas ao dispositivo; e [0025] Figure 3 is another perspective view of the floating element according to the preferred embodiment of the present invention with piping and anchor lines attached to the device; and
[0026]. A Figura 4 é ainda outra vista em perspectiva do elemento flutuante de acordo com a concretização preferencial da presente invenção, com linhas de tubulação e ancoragem fixas ao dispositivo, [0026] Figure 4 is yet another perspective view of the floating element according to the preferred embodiment of the present invention with piping and anchor lines attached to the device;
DESCRIÇÃO DETALHADA DA INVENÇÃO DETAILED DESCRIPTION OF THE INVENTION
[0027] Conforme melhor visualizado nas figuras 1 e 2, o elemento flutuante de acordo com a concretização preferida da presente invenção compreende peio menos três flutuadores, sendo um flutuador central alongado 1 e dois flutuadores de extremidade 2, 3, que formam uma bola submersa de grandes dimensões que é ancorada ao leito marinho por tendões. Assim, o elemento flutuante atua como um elemento intermediário entre a plataforma flutuante e o fundo do mar. As best seen in Figures 1 and 2, the floating element according to the preferred embodiment of the present invention comprises at least three floats, one elongated central float 1 and two end floats 2, 3 forming a submerged ball. that is anchored to the seabed by tendons. Thus, the floating element acts as an intermediate element between the floating platform and the seabed.
[0028], O flutuador centrai 1 possui um formato de viga alongada, que permite uma elevada estabilidade a rotação. Já os flutuadores de extremidade 2, 3 possuem, cada um, um formato substancialmente trapezoidal, com a face superior do trapézio voltada para a extremidade correspondente do flutuador central 1 , The central float 1 has an elongated beam shape which allows for high stability of rotation. The end floats 2, 3 each have a substantially trapezoidal shape, with the upper face of the trapezius facing the corresponding end of the central float 1,
[0029]. Preferencialmente» os três flutuadores 1 , 2 e 3 são formados por cascos compartimentados em tanques estanques, de modo que a capacidade de alagamento pode ser controlada de forma a se obter um equilíbrio de pesos. [0029] Preferably, the three floats 1, 2 and 3 are formed by compartmentalized hulls in watertight tanks, so that the flooding capacity can be controlled to achieve a weight balance.
[0030]. O flutuador central 1 é configurado para conectar as linhas de tubulação que são conectadas à plataforma flutuante (linhas 4 nas figuras 3 e 4) e as linhas de tubulação que sâo conectadas ao leito submarino (linhas S nas figuras 3 e 4). [0030] Central float 1 is configured to connect piping lines that are connected to the floating platform (lines 4 in figures 3 and 4) and piping lines that are connected to the subsea bed (lines S in figures 3 and 4).
[0031]. Cada um dos flutuadores de extremidade 2, 3 é configurado para conectar um conjunto de tendões utilizados para ancoragem do elemento flutuante ao solo marinho, Devido a elevada estabilidade a rotação do elemento flutuante da presente invenção, os tendões utilizados podem ser cabos de material sintético, como, por exemplo, cabos de poliéster, [0031] Each of the end floats 2, 3 is configured to connect a set of tendons used for anchoring the floating element to the sea floor. Due to the high rotational stability of the floating element of the present invention, the tendons used may be synthetic cables, such as polyester cables,
[0032], A elevada estabilidade a rotação é obtida pela elevação da distância vertical entre o centro de empuxo dos flutuadores 1, 2, 3 e o somatório das forças que atuam sobre o sistema de linhas submarinas (por exemplo, o peso dos risers, jumpers flexíveis e tendões de ancoragem). The high rotational stability is obtained by increasing the vertical distance between the buoyancy center of buoyancy 1, 2, 3 and the sum of forces acting on the subsea line system (eg, the weight of the risers, flexible jumpers and anchor tendons).
[0033]. O uso de cabos sintéticos permite uma redução na amplitude de cargas dinâmicas, elevando a resistência a fadiga dos componentes do sistema de tendão, como amarras, manilhas ou conectores. Além disso, os cabos sintéticos apresentam menores dificuldades de manuseio e ajuste, o que permite a utilização de equipamentos mais simples para Içamento e manuseio. Nesse sentido, destaca-se que o ajuste rx? comprimento dos tendões de cabo sintético pode ser realizado utilizando apenas o guincho de embarcações do tipo AHTS (anchor handling tug supply vessel) As embarcações do tipo AHTS permitem urna operação de menor custo e com menos restrições impostas por questões ambientais. [0033] The use of synthetic cables allows for a reduction in the range of dynamic loads, increasing the fatigue strength of tendon system components such as lashings, shackles or connectors. In addition, synthetic cables present less difficulty in handling and adjustment, which allows the use of simpler lifting and lifting equipment. handling. In this sense, it stands out that the adjustment rx? Synthetic cable tendon lengths can be achieved using only the anchor handling tug supply vessel (AHTS) type winch AHTS type vessels allow for less costly operation and with fewer restrictions imposed by environmental considerations.
[0034]. Outra vantagem do uso dos cabos sintéticos está relacionada ao monítoramento das cargas aluando sobre os tendões. Devido à baixa rigidez dos cabos sintéticos, a carga pode ser indlretamente obtida peia deformação do cabo tensionado. [0034] Another advantage of using synthetic cables is related to the monitoring of loads acting on the tendons. Due to the low rigidity of the synthetic cables, the load can be indirectly obtained by deforming the tensioned cable.
[0035], Conforme melhor ilustrado nas figuras 3 e 4, um primeiro conjunto de tendões de cabos sintéticos 6 é conectado a um dos flutuadores de extremidade 2 e um segundo conjunto de tendões de cabos sintéticos 7 é conectado ao outro dos flutuadores de extremidade 3, As best illustrated in Figures 3 and 4, a first set of synthetic cable tendons 6 is connected to one of the end floats 2 and a second set of synthetic cable tendons 7 is connected to the other of end floats 3 ,
[0036] . Os conjuntos de tendões de cabos sintéticos 6, 7 s3o conectados ao solo marinho por meb de âncora, como, por exemplo, estacas do tipo torpedo. O uso de estacas do tipo torpedo é uma solução de menor custo de fabricação e instalação. [0036] Synthetic cable tendon assemblies 6, 7 are connected to the seabed by anchor meb, such as torpedo piles. Using torpedo piles is a lower cost solution for manufacturing and installation.
[0037]. A construção do elemento flutuante da presente invenção possui uma vantagem intrínseca associada à padronização de seus elementos componentes, uma vez que tais componentes podem ser utilizados independente do arranjo de risers e jumpers, da quantidade e dimensões das linhas flexíveis ou rígidas, e independente das características da lâmina d'agua onde o sistema será utilizado. [0037] The construction of the floating element of the present invention has an intrinsic advantage associated with the standardization of its component elements, since such components can be used regardless of the arrangement of risers and jumpers, the amount and dimensions of flexible or rigid lines, and regardless of characteristics. the water slide where the system will be used.
[00389. De fato, a construção de elemento flutuante da presente invenção permite uma grande flexibilidade na disposição e arranjo das linhas de tubulação 4, 5 e dos tendões de ancoragem 6.7. [00389. Indeed, the floating element construction of the present invention allows for great flexibility in the arrangement and arrangement of piping lines 4, 5 and anchor tendons 6.7.
[0037], A padronização alcançada pelo elemento flutuante da presente invenção permite uma redução de custos de projeto e fabricação. Além disso, ao permitir a utilização de cabos sintéticos Mde prateleira", uma redução maior de custos é alcançada. [0040]. Tendo sido descrito um exemplo de uma concretização preferida da presente invenção, deve ser entendido que o escopo da presente Invenção abrange outras variações possíveis do conceito Inventivo descrito» sendo limitadas tão somente pelo teor das reivindicações apensas» aí incluídos os possíveis equivalentes. The standardization achieved by the floating element of the present invention allows for a reduction in design and manufacturing costs. In addition, by allowing the use of synthetic " M shelf" cables, further cost savings are achieved. [0040] Having described an example of a preferred embodiment of the present invention, it should be understood that the scope of the present invention encompasses other possible variations of the described inventive concept being limited only by the content of the appended claims, including the possible equivalents therein.
Claims
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRBR102014028326-5 | 2014-11-14 | ||
| BR102014028326A BR102014028326A2 (en) | 2014-11-14 | 2014-11-14 | automatic detection process of occupancy of parking spaces by vehicles |
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| Publication Number | Publication Date |
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| WO2016074050A1 true WO2016074050A1 (en) | 2016-05-19 |
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| PCT/BR2015/000111 Ceased WO2016074050A1 (en) | 2014-11-14 | 2015-07-28 | Floating element for an anchoring system for undersea oil exploration lines |
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| BR (1) | BR102014028326A2 (en) |
| WO (1) | WO2016074050A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423984A (en) * | 1980-12-29 | 1984-01-03 | Mobil Oil Corporation | Marine compliant riser system |
| US5505560A (en) * | 1993-10-26 | 1996-04-09 | Offshore Energie Development Corporation (Oecd) | Fluid transfer system for an offshore moored floating unit |
| GB2295408A (en) * | 1994-10-12 | 1996-05-29 | Mobil Oil Corp | Marine steel catenary riser system |
| WO2000031372A1 (en) * | 1998-11-23 | 2000-06-02 | Foster Wheeler Energy Limited | Tethered buoyant support for risers to a floating production vessel |
| US6109833A (en) * | 1997-08-01 | 2000-08-29 | Coflexip | Device for transferring fluid between equipment on the seabed and a surface unit |
| WO2003097990A1 (en) * | 2002-05-22 | 2003-11-27 | Technip France | Riser system connecting two fixed underwater installations to a floating surface unit |
-
2014
- 2014-11-14 BR BR102014028326A patent/BR102014028326A2/en not_active IP Right Cessation
-
2015
- 2015-07-28 WO PCT/BR2015/000111 patent/WO2016074050A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423984A (en) * | 1980-12-29 | 1984-01-03 | Mobil Oil Corporation | Marine compliant riser system |
| US5505560A (en) * | 1993-10-26 | 1996-04-09 | Offshore Energie Development Corporation (Oecd) | Fluid transfer system for an offshore moored floating unit |
| GB2295408A (en) * | 1994-10-12 | 1996-05-29 | Mobil Oil Corp | Marine steel catenary riser system |
| US6109833A (en) * | 1997-08-01 | 2000-08-29 | Coflexip | Device for transferring fluid between equipment on the seabed and a surface unit |
| WO2000031372A1 (en) * | 1998-11-23 | 2000-06-02 | Foster Wheeler Energy Limited | Tethered buoyant support for risers to a floating production vessel |
| WO2003097990A1 (en) * | 2002-05-22 | 2003-11-27 | Technip France | Riser system connecting two fixed underwater installations to a floating surface unit |
Also Published As
| Publication number | Publication date |
|---|---|
| BR102014028326A2 (en) | 2016-08-09 |
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