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JP7088452B2 - Offshore floating structure - Google Patents

Offshore floating structure Download PDF

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Publication number
JP7088452B2
JP7088452B2 JP2017108059A JP2017108059A JP7088452B2 JP 7088452 B2 JP7088452 B2 JP 7088452B2 JP 2017108059 A JP2017108059 A JP 2017108059A JP 2017108059 A JP2017108059 A JP 2017108059A JP 7088452 B2 JP7088452 B2 JP 7088452B2
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engine room
front wall
upper deck
offshore floating
stern
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JP2018202935A (en
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靖弘 十川
浩太朗 高野
研 中村
俊佑 岩見
茂 田中
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Mitsui E&S Shipbuilding Co Ltd
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Mitsui E&S Shipbuilding Co Ltd
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Priority to JP2017108059A priority Critical patent/JP7088452B2/en
Priority to PCT/JP2018/019253 priority patent/WO2018221265A1/en
Priority to CN201880032773.4A priority patent/CN110662694B/en
Priority to KR1020197035531A priority patent/KR20200014765A/en
Publication of JP2018202935A publication Critical patent/JP2018202935A/en
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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 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/02—Arrangement of bulkheads, e.g. defining cargo spaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B29/00—Accommodation for crew or passengers not otherwise provided for
    • B63B29/02—Cabins or other living spaces; Construction or arrangement thereof
    • 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
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/30—Mounting of propulsion plant or unit, e.g. for anti-vibration purposes
    • 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
    • E21B41/005—Waste disposal systems
    • E21B41/0071—Adaptation of flares, e.g. arrangements of flares in offshore installations

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Jib Cranes (AREA)
  • Wind Motors (AREA)

Description

本発明は、上甲板上に生産設備を備える洋上浮体構造物に関する。 The present invention relates to an offshore floating structure having a production facility on an upper deck.

浮体式海洋石油・ガス生産貯蔵積出設備（ＦＰＳＯ）などでは、生産設備は居住区の前方の上甲板上に配置される（例えば特許文献１）。一方、近年では生産能力の増大や新規の油田開発にともなって生産設備は多様化してきており、上甲板上により多くの生産設備を配置する必要性が高まっている。 In a floating marine oil and gas production storage and shipping facility (FPSO), the production facility is arranged on the upper deck in front of the residential area (for example, Patent Document 1). On the other hand, in recent years, production equipment has become diversified due to the increase in production capacity and the development of new oil fields, and the need to place more production equipment on the upper deck is increasing.

特開２０１７－３６０１４号公報Japanese Unexamined Patent Publication No. 2017-36014

上甲板上により多くの生産設備を配置するために船体自体を大きくすると、船体の大型化に伴う鋼材重量増によりコストが上昇し、また製造工程が長期化するという問題が生じる。 If the hull itself is made larger in order to arrange more production equipment on the upper deck, there is a problem that the cost increases due to the increase in the weight of the steel material due to the increase in the size of the hull, and the manufacturing process becomes long.

本発明は、コストの上昇や製造工程の長期化を招くことなく、上甲板上により多くの生産設備を設置することができる洋上浮体構造物を提供することを目的としている。 An object of the present invention is to provide an offshore floating structure in which more production equipment can be installed on the upper deck without increasing the cost or prolonging the manufacturing process.

第１の発明は、上甲板上に生産設備が設けられる洋上浮体構造物であって、船尾部において船体内に設けられた機関室と、船尾部において上甲板上に設けられた居住区とを備え、居住区の前壁が機関室の前壁よりも船尾側に位置することを特徴としている。 The first invention is an offshore floating structure in which production equipment is provided on the upper deck, and an engine room provided inside the ship at the stern and a living area provided on the upper deck at the stern. The feature is that the front wall of the living quarters is located on the stern side of the front wall of the engine room.

船体内に設けられた燃料タンクが機関室の前壁に隣接し、かつ機関室の船首側に設けられてもよい。また、船体内において、居住区の前壁の直下に、居住区を支持する支持構造体が設けられることが好ましい。上甲板において機関室の前壁と居住区の前壁の間に、生産設備や船首側の係船機器などから延びる配管および／または電線を通すための通路が形成されてもよい。 A fuel tank provided inside the ship may be provided adjacent to the front wall of the engine room and on the bow side of the engine room. Further, it is preferable that a support structure for supporting the living area is provided directly under the front wall of the living area in the ship body. On the upper deck, a passage may be formed between the front wall of the engine room and the front wall of the living quarters for passing pipes and / or electric wires extending from production equipment, mooring equipment on the bow side, and the like.

第２の発明は、上甲板上に生産設備が設けられる洋上浮体構造物であって、船尾部において船体内に形成された機関室と、船尾部において上甲板上に設けられた居住区と、船体内に設けられた燃料タンクとを備え、居住区の前壁が機関室の前壁の直上に位置するとともに、燃料タンクが機関室の前壁に隣接し、かつ機関室の船首側に設けられることを特徴としている。 The second invention is an offshore floating structure in which a production facility is provided on the upper deck, and an engine room formed in the hull at the stern, a living area provided on the upper deck at the stern, and the like. It is equipped with a fuel tank installed inside the ship, and the front wall of the living quarters is located directly above the front wall of the engine room, and the fuel tank is installed adjacent to the front wall of the engine room and on the stern side of the engine room. It is characterized by being able to be.

上述した全ての発明に関し、上甲板上において、居住区よりも後側にホースリールなどのオフローディングシステムが載置されてもよい。また、船首部において船体内に設けられたコリジョンバルクヘッドと、船首部において上甲板上に設けられたフレアタワーとを備え、フレアタワーがコリジョンバルクヘッドよりも前方に配置されてもよい。 For all the inventions described above, an offloading system such as a hose reel may be mounted on the upper deck behind the living quarters. Further, a collision bulkhead provided inside the ship at the bow and a flare tower provided on the upper deck at the bow may be provided, and the flare tower may be arranged in front of the collision bulkhead.

第３の発明は、上甲板上に生産設備が設けられる洋上浮体構造物であって、船首部において船体内に設けられたコリジョンバルクヘッドと、船首部において上甲板上に設けられたフレアタワーとを備え、フレアタワーはコリジョンバルクヘッドよりも前方に配置されることを特徴としている。 The third invention is an offshore floating structure in which production equipment is provided on the upper deck, and a collision bulkhead provided inside the ship at the bow and a flare tower provided on the upper deck at the bow. The flare tower is characterized by being placed in front of the collision bulkhead.

本発明によれば、コストの上昇や製造工程の長期化を招くことなく、上甲板上により多くの生産設備を設置することができる洋上浮体構造物を得ることができる。 According to the present invention, it is possible to obtain an offshore floating structure in which more production equipment can be installed on the upper deck without increasing the cost or prolonging the manufacturing process.

本発明の第１実施形態の洋上浮体構造物を概略的に示す側面図である。It is a side view schematically showing the offshore floating structure of 1st Embodiment of this invention. 第１実施形態の洋上浮体構造物の船尾部の概略的な構成を示す平面図である。It is a top view which shows the schematic structure of the stern part of the offshore floating structure of 1st Embodiment. 第１実施形態の洋上浮体構造物の船尾部の概略的な構成を示す横断面図である。It is sectional drawing which shows the schematic structure of the stern part of the offshore floating structure of 1st Embodiment. 第２実施形態の洋上浮体構造物の船尾部の概略的な構成を示す側面図である。It is a side view which shows the schematic structure of the stern part of the offshore floating structure of 2nd Embodiment. 第２実施形態の洋上浮体構造物の船尾部の概略的な構成を示す平面図である。It is a top view which shows the schematic structure of the stern part of the offshore floating structure of 2nd Embodiment. 第３実施形態の洋上浮体構造物の船尾部の概略的な構成を示す側面図である。It is a side view which shows the schematic structure of the stern part of the offshore floating structure of 3rd Embodiment. 第４実施形態の洋上浮体構造物の船尾部の概略的な構成を示す側面図である。It is a side view which shows the schematic structure of the stern part of the offshore floating structure of 4th Embodiment.

以下、図示された実施形態を参照して本発明に係る洋上浮体構造物の構成を説明する。
図１は第１実施形態の洋上浮体構造物を概略的に示し、船体１０において、上甲板１１上には生産設備１２が設けられている。船尾部１３において、上甲板１１上には居住区１４が設けられ、船体１０内には機関室１５が設けられる。なお、この図において、生産設備１２は簡略化されて示されているが、実際には、ガス分離設備、脱水設備、計量設備、発電設備等の多数の設備から成る。 Hereinafter, the configuration of the offshore floating structure according to the present invention will be described with reference to the illustrated embodiment.
FIG. 1 schematically shows an offshore floating structure of the first embodiment, and in the hull 10, a production facility 12 is provided on the upper deck 11. In the stern portion 13, a living area 14 is provided on the upper deck 11, and an engine room 15 is provided in the hull 10. Although the production equipment 12 is shown in a simplified manner in this figure, it is actually composed of a large number of equipment such as gas separation equipment, dehydration equipment, measuring equipment, and power generation equipment.

船体１０内において、機関室１５の前壁１６に隣接して燃料タンク１７が配置される。従来、燃料タンク１７は機関室１５の両側に設けられていたが（図５参照）、本実施形態では、図２に示すように機関室１５の前側に設けられる。したがって機関室１５の幅を船体１０の幅に合わせて広くすることができ、これに伴い機関室１５の船長方向長さを短くすることができる。 In the hull 10, the fuel tank 17 is arranged adjacent to the front wall 16 of the engine room 15. Conventionally, the fuel tanks 17 are provided on both sides of the engine room 15 (see FIG. 5), but in the present embodiment, they are provided on the front side of the engine room 15 as shown in FIG. Therefore, the width of the engine room 15 can be widened according to the width of the hull 10, and the length of the engine room 15 in the captain direction can be shortened accordingly.

居住区１４の前壁１８は機関室１５の前壁１６よりも船尾側に位置する。このように前壁１６、１８が船長方向にずれていると、居住区１４の前部を支持する上甲板１１の強度が不足するおそれがあるが、本実施形態では、図３に示すように居住区１４の前壁１８（図１参照）の直下に、ピラー２０等の支持構造体が設けられている。ピラー２０は上甲板１１と第２甲板２１の間に設けられ、これにより居住区１４は適切に支持される。なお支持構造体としては、通行スペースまたは機器を配置するための開口が形成された壁であってもよい。 The front wall 18 of the living quarter 14 is located on the stern side of the front wall 16 of the engine room 15. If the front walls 16 and 18 are displaced in the captain direction in this way, the strength of the upper deck 11 that supports the front portion of the living area 14 may be insufficient, but in the present embodiment, as shown in FIG. A support structure such as a pillar 20 is provided directly below the front wall 18 (see FIG. 1) of the living area 14. The pillar 20 is provided between the upper deck 11 and the second deck 21, whereby the living quarters 14 are appropriately supported. The support structure may be a wall having a passage space or an opening for arranging equipment.

居住区１４の前壁１８が機関室１５の前壁１６よりも船尾側に位置することにより、上甲板１１において前壁１６、１８の間隙に対応する部分に、生産設備１２や船首側の係船機器などから延びる種々の配管２２や電線２３を通すための通路（図示せず）が形成される。機関室１５と生産設備１２の間には種々の配管２２や電線２３が設けられ、従来は居住区１４や、機関室１５の前側に設けられたポンプルーム（図示せず）内を経由して通しており、電線や配管の取付け作業のための足場を狭い場所に設置するなど、煩雑な作業が必要であった。また電線２３を居住区１４内を経由して通す場合、居住区１４が船体１０に搭載されるまで、取付け作業が実施できなかった。これに対して本実施形態では、配管２２と電線２３を上甲板１１における前壁１６、１８の間を通すように構成したので、居住区１４およびポンプルームを経由して通す場合と比べ、配管２２と電線２３が貫通する箇所が減少する。また、ポンプルーム内はデッキを設けていないため、配管、電線の取付けには多数の足場が必要になるが、本実施形態では、第２甲板２１が利用できるため、取付け作業が容易になる。また居住区１４が船体１０に搭載される前に電線の取付け作業の実施が可能になる。 Since the front wall 18 of the living area 14 is located on the stern side of the front wall 16 of the engine room 15, the production equipment 12 and the bow side are moored in the portion of the upper deck 11 corresponding to the gap between the front walls 16 and 18. A passage (not shown) for passing various pipes 22 and electric wires 23 extending from equipment and the like is formed. Various pipes 22 and electric wires 23 are provided between the engine room 15 and the production equipment 12, and conventionally, they pass through a living area 14 and a pump room (not shown) provided in front of the engine room 15. It was passed through, and complicated work such as installing a scaffold for the installation work of electric wires and pipes in a narrow place was required. Further, when the electric wire 23 is passed through the living area 14, the attachment work could not be performed until the living area 14 is mounted on the hull 10. On the other hand, in the present embodiment, since the pipe 22 and the electric wire 23 are configured to pass between the front walls 16 and 18 on the upper deck 11, the pipe is compared with the case where the pipe 22 and the electric wire 23 are passed through the living area 14 and the pump room. The number of places where the 22 and the electric wire 23 penetrate is reduced. Further, since the deck is not provided in the pump room, a large number of scaffolds are required for mounting the pipes and electric wires, but in the present embodiment, the second deck 21 can be used, which facilitates the mounting work. Further, the electric wire attachment work can be carried out before the living area 14 is mounted on the hull 10.

船首部２４において、上甲板１１上にはフレアタワー２５が設けられる。フレアタワー２５は、船体１０内に設けられたコリジョンバルクヘッド２６よりも前方に配置される。船首部２４の上甲板１１には通常多数の艤装品が設けられており、フレアタワー２５を配置することは困難であるが、本実施形態では、フレアタワー２５の配置が可能になるように、船首部２４の上甲板１１を拡大している。なお、船首部２４の上甲板１１の水線面積係数（＝船首側水線面積／（船の全長／２）／船幅）は例えば０．９３以上である。 At the bow portion 24, a flare tower 25 is provided on the upper deck 11. The flare tower 25 is arranged in front of the collision bulkhead 26 provided in the hull 10. The upper deck 11 of the bow portion 24 is usually provided with a large number of fittings, and it is difficult to arrange the flare tower 25. However, in the present embodiment, the flare tower 25 can be arranged. The upper deck 11 of the bow portion 24 is enlarged. The waterline area coefficient (= bow side waterline area / (total length of the ship / 2) / ship width) of the upper deck 11 of the bow portion 24 is, for example, 0.93 or more.

以上のように本実施形態では、船尾部１３において、燃料タンク１７を機関室１５の前側に設けることにより機関室１５の長さを短くするとともに、居住区１４の前壁１８を機関室１５の前壁１６よりも船尾側に配置している。また船首部２４の上甲板１１では、フレアタワー２５をコリジョンバルクヘッド２６よりも前方に配置している。このような構成により、上甲板１１において生産設備１２を設置できる面積を、従来よりも拡大することができる。したがって、より多くの生産設備１２を上甲板１１上に配置するために、船体１０を大きくする必要はなく、船体１０の大型化によるコストアップと、製造工程の長期化を回避することができる。 As described above, in the present embodiment, in the stern portion 13, the length of the engine room 15 is shortened by providing the fuel tank 17 on the front side of the engine room 15, and the front wall 18 of the living area 14 is provided in the engine room 15. It is located on the stern side of the front wall 16. Further, on the upper deck 11 of the bow portion 24, the flare tower 25 is arranged in front of the collision bulkhead 26. With such a configuration, the area where the production equipment 12 can be installed on the upper deck 11 can be expanded as compared with the conventional case. Therefore, in order to arrange more production equipment 12 on the upper deck 11, it is not necessary to increase the size of the hull 10, and it is possible to avoid cost increase due to the increase in size of the hull 10 and lengthening of the manufacturing process.

また本実施形態は、上甲板１１において、居住区１４の前壁１８と機関室１５の前壁１６との間に、生産設備１２から延びる種々の配管２２や電線２３を通すように構成されている。すなわち配管２２や電線２３が居住区１４やポンプルームを経由して通らないので、居住区１４内において種々の機器との干渉等を考慮することや、ポンプルーム内での取付け作業のための足場を設置することが不要になり、配管２２と電線２３の取付け作業が容易になる。 Further, the present embodiment is configured to pass various pipes 22 and electric wires 23 extending from the production equipment 12 between the front wall 18 of the living area 14 and the front wall 16 of the engine room 15 on the upper deck 11. There is. That is, since the piping 22 and the electric wire 23 do not pass through the living area 14 and the pump room, consideration for interference with various devices in the living area 14 and a scaffolding for installation work in the pump room. It becomes unnecessary to install the pipe 22 and the installation work of the pipe 22 and the electric wire 23 becomes easy.

さらに本実施形態では、燃料タンク１７が機関室１５の前方に配置されるので、危険区域であるカーゴタンク区域１９と安全区画である機関室１５との間にコファダムを設ける必要がない。このような燃料タンク１７の配置はポンプルーム方式ではなく、カーゴタンクおよびバラスト水タンク毎にポンプを設けるサブマージドポンプやディープウェルポンプ方式を採用する際にメリットがある。 Further, in the present embodiment, since the fuel tank 17 is arranged in front of the engine room 15, it is not necessary to provide a cofadam between the cargo tank area 19 which is a dangerous area and the engine room 15 which is a safety area. Such an arrangement of the fuel tank 17 is advantageous when adopting a submerged pump or a deep well pump system in which a pump is provided for each cargo tank and ballast water tank instead of the pump room system.

一方、居住区１４の前壁１８の直下のピラー２０の配置に関し、ピラー２０と機関室１５の前壁１６との間は本来デッドスペースであり、機器を配置することは想定されない。したがってピラー２０と前壁１６の間隔は、１トランススペースすなわち横桁の間隔（約４～５ｍ）程度に定められる。 On the other hand, regarding the arrangement of the pillar 20 directly under the front wall 18 of the living area 14, the space between the pillar 20 and the front wall 16 of the engine room 15 is originally a dead space, and it is not assumed that the equipment is arranged. Therefore, the distance between the pillar 20 and the front wall 16 is set to about one transformer space, that is, the distance between the cross girders (about 4 to 5 m).

なお本実施形態では、居住区１４が一般商船よりも後方に位置するので、船体１０の前方への見通しが悪くなるが、ＦＰＳＯの場合、自航するのは設置海域までの移送などに限定されるので、大きな問題とはならない。 In this embodiment, since the residential area 14 is located behind the general commercial ship, the visibility to the front of the hull 10 is poor, but in the case of FPSO, self-propelling is limited to transportation to the installation sea area. Therefore, it is not a big problem.

図４、５を参照して第２実施形態を説明する。第１実施形態との差異は燃料タンク１７が機関室１５の両側に設けられている点であり、機関室１５の前方には、カーゴタンクおよびバラスト水タンクの荷役用のポンプを収容するためのポンプルーム３１が形成されている。その他の構成は第１実施形態と同様である。すなわち居住区１４の前壁１８は機関室１５の前壁１６より船尾側に設けられ、前壁１８の直下には、第１実施形態と同様に、図３に示すような補強用ピラーが設けられる。また上甲板１１において、前壁１６、１８の間に対応する部分には、生産設備１２から延びる種々の配管２２や電線２３を通すための通路（図示せず）が形成される。 The second embodiment will be described with reference to FIGS. 4 and 5. The difference from the first embodiment is that the fuel tanks 17 are provided on both sides of the engine room 15, and in front of the engine room 15, a pump for cargo handling of a cargo tank and a ballast water tank is accommodated. A pump room 31 is formed. Other configurations are the same as those of the first embodiment. That is, the front wall 18 of the residential area 14 is provided on the stern side of the front wall 16 of the engine room 15, and a reinforcing pillar as shown in FIG. 3 is provided directly below the front wall 18 as in the first embodiment. Will be. Further, in the upper deck 11, a passage (not shown) for passing various pipes 22 and electric wires 23 extending from the production equipment 12 is formed in the corresponding portion between the front walls 16 and 18.

燃料タンク１７が機関室１５の前側に配置されない分だけ前壁１６は船首側に位置し、また居住区１４の前壁１８も同様に船首側に位置している。したがって第１実施形態と比較して、生産設備１２を設置できる上甲板１１の面積は小さいが、居住区の前壁の直下に機関室の前壁が設けられる従来の構成よりも生産設備１２の設置面積を拡大することができる。 The front wall 16 is located on the bow side as much as the fuel tank 17 is not arranged on the front side of the engine room 15, and the front wall 18 of the living quarter 14 is also located on the bow side. Therefore, the area of the upper deck 11 on which the production equipment 12 can be installed is smaller than that of the first embodiment, but the production equipment 12 has a larger area than the conventional configuration in which the front wall of the engine room is provided directly under the front wall of the residential area. The installation area can be expanded.

図６は第３実施形態を示している。第１実施形態との差異は居住区１４の前壁１８が機関室１５の前壁１６の直上に位置する点であり、燃料タンク１７は機関室１５の前壁１６に隣接して配置されている。したがって第１および第２実施形態とは異なり、上甲板１１において、前壁１６、１８の間に配管２２と電線２３（図１参照）を通すための通路は形成されない。 FIG. 6 shows a third embodiment. The difference from the first embodiment is that the front wall 18 of the residential area 14 is located directly above the front wall 16 of the engine room 15, and the fuel tank 17 is arranged adjacent to the front wall 16 of the engine room 15. There is. Therefore, unlike the first and second embodiments, a passage for passing the pipe 22 and the electric wire 23 (see FIG. 1) is not formed between the front walls 16 and 18 on the upper deck 11.

第３実施形態によれば、燃料タンク１７が機関室１５の前方に配置されることにより、第１実施形態に関連して上述したように、機関室１５の長さを短くすることができ、これは居住区１４の前壁１８も従来の構成よりも船尾側に配置されることを意味する。したがって上甲板１１において生産設備１２を設置できる面積を、従来よりも拡大することができる。なお、機関室と同様に居住区の長さが短くなるが、居住区は幅方向あるいは高さ方向に大きくできるため、問題とはならない。 According to the third embodiment, by arranging the fuel tank 17 in front of the engine room 15, the length of the engine room 15 can be shortened as described above in relation to the first embodiment. This means that the front wall 18 of the living quarters 14 is also arranged on the stern side of the conventional configuration. Therefore, the area where the production equipment 12 can be installed on the upper deck 11 can be expanded as compared with the conventional case. As with the engine room, the length of the living quarters is shortened, but this does not matter because the living quarters can be increased in the width direction or the height direction.

図７は第４実施形態を示している。これは第２実施形態（図４）の居住区１４の船長方向の長さを短くして、船尾部１３の居住区１４よりも後側の上甲板１１の面積を拡大し、ホースリールなどのオフローディングシステム３２を載置したものである。その他の構成は第２実施形態と同様である。すなわち居住区１４の前壁１８は機関室１５の前壁１６より船尾側に設けられ、前壁１８の直下には、第１実施形態と同様に、図３に示すような補強用ピラーが設けられる。また上甲板１１において、前壁１６、１８の間に対応する部分には、生産設備１２から延びる種々の配管２２や電線２３（図４参照）を通すための通路（図示せず）が形成される。 FIG. 7 shows a fourth embodiment. This shortens the length of the residential area 14 of the second embodiment (FIG. 4) in the captain direction, expands the area of the upper deck 11 behind the residential area 14 of the stern portion 13, and increases the area of the upper deck 11 such as a hose reel. The offloading system 32 is mounted. Other configurations are the same as those of the second embodiment. That is, the front wall 18 of the residential area 14 is provided on the stern side of the front wall 16 of the engine room 15, and a reinforcing pillar as shown in FIG. 3 is provided directly below the front wall 18 as in the first embodiment. Will be. Further, in the upper deck 11, a passage (not shown) for passing various pipes 22 and electric wires 23 (see FIG. 4) extending from the production equipment 12 is formed in the corresponding portion between the front walls 16 and 18. To.

洋上浮体構造物が設置される海域によっては、居住区１４の後方に、シャトルタンカーへカーゴを払い出すためのホースリールなどのオフローディングシステム３２を搭載することが必要になる場合があるが、第４実施形態は、そのような場合に効果的である。 Depending on the sea area where the offshore floating structure is installed, it may be necessary to install an offloading system 32 such as a hose reel for discharging cargo to the shuttle tanker behind the living area 14. 4 Embodiments are effective in such a case.

１０ 船体
１１ 上甲板
１３ 船尾部
１４ 居住区
１５ 機関室
１６、１８ 前壁 10 Hull 11 Upper deck 13 Stern 14 Residential area 15 Engine room 16, 18 Front wall

Claims (6)

上甲板上に生産設備が設けられる洋上浮体構造物であって、
船尾部において船体内に設けられた機関室と、
前記船尾部において前記上甲板上に設けられた居住区と、
前記船体内に設けられた燃料タンクとを備え、
前記燃料タンクが前記機関室の前壁に隣接し、かつ前記機関室の船首側に設けられ、
前記居住区の前壁が前記機関室の前壁よりも船尾側に位置し、かつ前記生産設備に対向し、
前記生産設備の船尾側端部が前記燃料タンクの上方に位置する
ことを特徴とする洋上浮体構造物。 It is an offshore floating structure with production equipment installed on the upper deck.
The engine room provided inside the ship at the stern,
The living quarters provided on the upper deck at the stern and
It is equipped with a fuel tank provided inside the ship.
The fuel tank is provided adjacent to the front wall of the engine room and on the bow side of the engine room.
The front wall of the living quarter is located on the stern side of the front wall of the engine room and faces the production facility.
The stern side end of the production equipment is located above the fuel tank
An offshore floating structure characterized by this. 前記船体内において、前記居住区の前壁の直下に、前記居住区を支持する支持構造体が設けられることを特徴とする請求項１に記載の洋上浮体構造物。 The offshore floating structure according to claim 1 , wherein a support structure for supporting the living area is provided directly below the front wall of the living area in the ship body. 前記上甲板において前記機関室の前壁と前記居住区の前壁の間に、配管および／または電線を通すための通路が形成されることを特徴とする請求項１または２に記載の洋上浮体構造物。 The offshore floating body according to claim 1 or 2 , wherein a passage for passing pipes and / or electric wires is formed between the front wall of the engine room and the front wall of the living area on the upper deck. Structure. 上甲板上に生産設備が設けられる洋上浮体構造物であって、
船尾部において船体内に形成された機関室と、
前記船尾部において前記上甲板上に設けられた居住区と、
前記船体内に設けられた燃料タンクとを備え、
前記居住区の前壁が前記機関室の前壁の直上に位置するとともに、前記燃料タンクが前記機関室の前壁に隣接し、かつ前記機関室の船首側に設けられ、前記生産設備に対向し、
前記生産設備の船尾側端部が前記燃料タンクの上方に位置する
ことを特徴とする洋上浮体構造物。 It is an offshore floating structure with production equipment installed on the upper deck.
The engine room formed inside the ship at the stern,
The living quarters provided on the upper deck at the stern and
It is equipped with a fuel tank provided inside the ship.
The front wall of the living quarter is located directly above the front wall of the engine room, and the fuel tank is adjacent to the front wall of the engine room and is provided on the bow side of the engine room to face the production facility. death,
The stern side end of the production equipment is located above the fuel tank
An offshore floating structure characterized by this. 前記上甲板上において、前記居住区よりも後側にオフローディングシステムが載置されることを特徴とする請求項１～４のいずれか１項に記載の洋上浮体構造物。 The offshore floating structure according to any one of claims 1 to 4 , wherein an offloading system is placed on the upper deck behind the living area. 船首部において船体内に設けられたコリジョンバルクヘッドと、
前記船首部において前記上甲板上に設けられたフレアタワーとを備え、
前記フレアタワーは前記コリジョンバルクヘッドよりも前方に配置されることを特徴とする請求項１～５のいずれか１項に記載の洋上浮体構造物。
Collision bulkhead installed inside the ship at the bow,
The bow is provided with a flare tower provided on the upper deck.
The offshore floating structure according to any one of claims 1 to 5 , wherein the flare tower is arranged in front of the collision bulkhead.
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