CN105151241A - Multi-stand-column semi-submersible platform for cylindrical floating box - Google Patents
Multi-stand-column semi-submersible platform for cylindrical floating box Download PDFInfo
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- CN105151241A CN105151241A CN201510459665.3A CN201510459665A CN105151241A CN 105151241 A CN105151241 A CN 105151241A CN 201510459665 A CN201510459665 A CN 201510459665A CN 105151241 A CN105151241 A CN 105151241A
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Abstract
The invention relates to a multi-stand-column semi-submersible platform for a cylindrical floating box. The cylindrical floating box is arranged at the bottom of the semi-submersible platform. The inner portion of the cylindrical floating box is divided into a plurality of watertight cabins used for storing well drilling materials, consumables, anchor cables and ballast water. The circumference of the top of the cylindrical floating box is connected with the bottom of a platform deck through four or more stand columns. Branch cabins used for storing fresh water and drilling mud materials and elevator passageways penetrating the cylindrical floating box and the top of the platform deck are arranged in the stand columns. A generator set, an electrical equipment room and a drilling support device are arranged in the platform deck. A drilling or oil-gas production facility is arranged on the platform deck. The multi-stand-column semi-submersible platform is high in loading capacity adaptability, low in center of gravity, good in stability, small in movement range, high in overall strength, insensitive in environment direction, capable of changing the draft, capable of being towed by a tug or conducting self-propulsion through a propeller, simple in structure, convenient to construct and suitable for drilling and oil-gas production work of oil-gas fields in shallow sea and deepwater sea areas.
Description
Technical field
The present invention relates to a kind of semi-submerged offshore platform, particularly about a kind of tubular buoyancy tank many columns semisubmersible platform be applicable in field of ocean engineering.
Background technology
Semi-submersible drilling unit is one of main equipment of offshore oil and gas field probing exploitation, and semisubmersible production platform is the important a member in deep water floating production platform family, and the two is all adopt semi-submersible hull as platform carrier.Typical semisubmersible platform hull is generally made up of two or four cuboid buoyancy tank, four or six roots of sensation column, is all widely applied in whole world Ge great marine site.
Along with exploitation of offshore oil and gas develops to deep water sea area, semi-submersible drilling unit and the operation variable load of semisubmersible production platform, the demand of delelivered payload capability are improved constantly, thus platform displacement improves constantly.The buoyancy of semi-submersible drilling unit and semisubmersible production platform is mainly derived from and is immersed in buoyancy tank in water and column, and in order to improve platform displacement, common way increases buoyancy tank length or width, also can increase the cross-sectional area of column.But, the increase of buoyancy tank length is unfavorable for platform structure safety by causing the raising of buoyancy tank and column connection location local stress, and buoyancy tank width is subject to the restriction of central drilling operation regional space demand, the raising that column cross-section amasss simultaneously will change platform heaving natural period thus amplify the wave load born.Therefore, be necessary to develop and a kind ofly can adapt to different displacement demand and not affect the semisubmersible platform of its tractive performance.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of tubular buoyancy tank many columns semisubmersible platform, this platform is made up of the deck of a tubular buoyancy tank, some root posts, a watertight, deck is equipped with drilling well or production facility, generating set, synergic system, control system, life building, safe life-saving facility etc., anchoring location or dynamic positioning can be adopted, there is sufficient stability, air gap and less motion amplitude, be adapted to probing and the production of hydrocarbons operation of shallow sea and deep water sea area oil-gas field.
For achieving the above object, the present invention takes following technical scheme: a kind of tubular buoyancy tank many columns semisubmersible platform, is characterized in that: described semisubmersible platform comprises tubular buoyancy tank, column and platform deck; Be provided with described tubular buoyancy tank bottom this semisubmersible platform, described tubular buoyancy tank is divided internally into multiple watertight cabin in order to store bored material, consumable store, anchor hawser and ballast water; Described tubular buoyancy tank top perimeter place is connected with bottom described platform deck by the described column of more than four; Described column inside is also provided with the subdivision for storing fresh water and well-drilling slurry material, and the lift trunk at through described tubular buoyancy tank and platform deck top; Described platform deck inside arranges between generator set, electrical equipment and drilling well corollary equipment.
Described platform deck top circumference is also respectively arranged with anchoring equipment, life building, loop wheel machine, life boat, drilling water-separation pipe and drilling rod laydown area, production of hydrocarbons facility and helicopter deck, in the middle part of described platform deck, be provided with moon pool, above described moon pool, be provided with derrick; Described platform is by the midget plant on described loop wheel machine transhipment supplies or mobile described platform deck; Described platform is located by described anchoring equipment mooring.
Described tubular buoyancy tank middle position is provided with the opening as operation path.
Also be provided with ballast chamber in described tubular buoyancy tank, regulate ballast water capacity can change platform drinking water by described ballast tank; During described tubular buoyancy tank drinking water, displacement is greater than semi-submersible drilling unit light weight, consumable store loaded weight, ballast water weight sum.
Described tubular buoyancy tank inside arranges propelling unit cabin, arranges all-direction propeller bottom described tubular buoyancy tank.
Described column adopts circular cross section or polygonal crosssection, and the junction of described column and described tubular buoyancy tank adopts bracket to strengthen.
Described platform deck adopts rectangular configuration or circular configuration, forms basic carrying structure, top covering steel plate as deck plane by the beam be criss-cross arranged.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the invention provides a kind of tubular buoyancy tank many columns semisubmersible platform, this platform is made up of the platform deck of a tubular buoyancy tank, some root posts, a watertight, platform deck is equipped with drilling well or production of hydrocarbons facility, electric system, synergic system, control system, life building, safe life-saving facility etc., anchoring location or dynamic positioning can be adopted, there is sufficient stability and good exercise performance.2, the tubular buoyancy tank that the present invention adopts has larger cross-sectional area, reaches by increasing less height the object increasing considerably displacement, thus can adapt to different delelivered payload capability demand under the prerequisite of basic maintenance ship type yardstick.3, the tubular buoyancy tank inner space that adopts of the present invention is comparatively large and arrange ballasting system, effectively reduces platform center of gravity, improves semisubmersible platform stability, reduces semisubmersible platform motion amplitude.4, the tubular buoyancy tank uniform force, the bulk strength that adopt of the present invention is high.5, the tubular buoyancy tank that the present invention adopts can support the weight of whole semisubmersible platform when major part is absorbed water, now by auxiliary vessel towage, or can be realized from boat by the dynamic positioning propelling unit of self equipment.6, the column that the present invention adopts is uniformly distributed along tubular buoyancy tank exterior boundary, minimum arrange four, also can arrange many to reduce the span of platform deck, thus minimizing platform deck rolled steel dosage, alleviate deadweight.7, semisubmersible platform symmetry provided by the invention is good, and yawing direction motion amplitude is little, and environment direction is insensitive.8, the present invention adopts cylinder, column type structure, and its version is simple, construction is convenient, can reduce construction costs.The present invention can extensively apply in field of ocean engineering.
Accompanying drawing explanation
Fig. 1 is integral structure schematic diagram of the present invention;
Fig. 2 is tubular buoyancy tank birds-eye view of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the invention provides a kind of tubular buoyancy tank many columns semisubmersible platform, it comprises tubular buoyancy tank 1, column 2, platform deck 3, anchoring equipment 4, life building 5, loop wheel machine 6, life boat 7, drilling water-separation pipe and drilling rod laydown area 8, helicopter deck 9, moon pool 10 and derrick 11.
Be provided with a tubular buoyancy tank 1 bottom this semisubmersible platform, this tubular buoyancy tank 1 provides main buoyancy for whole semisubmersible platform, and it is divided internally into multiple watertight cabin in order to store the consumable store such as bored material, fuel oil, anchor hawser and ballast water.Tubular buoyancy tank 1 top perimeter place is connected with bottom platform deck 3 by the column 2 of more than four; Column 2 inside is also provided with the subdivision for the material such as storing fresh water and bore mud, and the lift trunk at through tubular buoyancy tank 1 and platform deck 3 top.Platform deck 3 top circumference is also respectively arranged with anchoring equipment 4, life building 5, loop wheel machine 6, life boat 7, drilling water-separation pipe and drilling rod laydown area 8, production of hydrocarbons facility (not shown) and helicopter deck 9, in the middle part of platform deck 3, be provided with moon pool 10, above moon pool 10, be provided with derrick 11; Platform deck 3 inside arranges between generator set, electrical equipment and drilling well corollary equipment; Platform deck 3 is by anchoring equipment 4 mooring location; The midget plant on supplies or mobile platform deck 3 is transported by loop wheel machine 6.
In above-described embodiment, as shown in Figure 2, tubular buoyancy tank 1 middle position is provided with opening 12, using as operation path.
In the various embodiments described above, also ballast chamber is provided with in tubular buoyancy tank 1, regulate ballast water capacity can change platform drinking water by ballast tank, to adapt to the drinking water needs under drilling operation environmental conditions or extreme environmental conditions, and tubular buoyancy tank 1 when absorbing water displacement be greater than semi-submersible drilling unit light weight, consumable store loaded weight, ballast water weight sum, may float on the water surface by tugboat towage.
In the various embodiments described above, propelling unit cabin can be set in tubular buoyancy tank 1 inside, bottom tubular buoyancy tank 1, can all-direction propeller be set, thus realize dynamic positioning and certainly navigate.
In the various embodiments described above, column 2 can adopt circular cross section or other polygonal crosssection, bracket can be adopted to strengthen at column 2 and the junction of tubular buoyancy tank 1.
In the various embodiments described above, the quantity of column 2 is determined according to the yardstick of tubular buoyancy tank 1, stability demand, and the increase of column 2 quantity can effectively reduce the span of platform deck 3, thus reduces platform deck 3 rolled steel dosage, alleviates deadweight.
In the various embodiments described above, the height of platform deck 3 is set to more than 7 meters, adopt rectangular configuration or circular configuration, form basic carrying structure by the beam be criss-cross arranged, top covers steel plate as deck plane, there is enough intensity and space in order to install top facility.
In sum, semisubmersible platform provided by the invention is adapted to different displacement demand, its center of gravity is low, stability good, motion amplitude is little, bulk strength is high, environment direction is insensitive, drinking water can be changed, can navigate by tugboat towage or certainly, structure is simple, be convenient to build, and is adapted to probing and the production of hydrocarbons operation of shallow sea and deep water sea area oil-gas field.
The various embodiments described above are only for illustration of the present invention; the structure of each parts, size, setting position and shape all can change to some extent; on the basis of technical solution of the present invention; all improvement of carrying out individual part according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.
Claims (9)
1. tubular buoyancy tank many columns semisubmersible platform, is characterized in that: described semisubmersible platform comprises tubular buoyancy tank, column and platform deck;
Be provided with described tubular buoyancy tank bottom this semisubmersible platform, described tubular buoyancy tank is divided internally into multiple watertight cabin in order to store bored material, consumable store, anchor hawser and ballast water; Described tubular buoyancy tank top perimeter place is connected with bottom described platform deck by the described column of more than four; Described column inside is also provided with the subdivision for storing fresh water and well-drilling slurry material, and the lift trunk at through described tubular buoyancy tank and platform deck top; Described platform deck inside arranges between generator set, electrical equipment and drilling well corollary equipment.
2. a kind of tubular buoyancy tank many columns semisubmersible platform as claimed in claim 1, it is characterized in that: described platform deck top circumference is also respectively arranged with anchoring equipment, life building, loop wheel machine, life boat, drilling water-separation pipe and drilling rod laydown area, production of hydrocarbons facility and helicopter deck, in the middle part of described platform deck, be provided with moon pool, above described moon pool, be provided with derrick; Described platform is by the midget plant on described loop wheel machine transhipment supplies or mobile described platform deck; Described platform is located by described anchoring equipment mooring.
3. a kind of tubular buoyancy tank many columns semisubmersible platform as claimed in claim 1, is characterized in that: described tubular buoyancy tank middle position is provided with the opening as operation path.
4. a kind of tubular buoyancy tank many columns semisubmersible platform as claimed in claim 2, is characterized in that: described tubular buoyancy tank middle position is provided with the opening as operation path.
5. a kind of tubular buoyancy tank many columns semisubmersible platform as described in any one of Claims 1 to 4, is characterized in that: be also provided with ballast chamber in described tubular buoyancy tank, regulates ballast water capacity can change platform drinking water by described ballast tank; During described tubular buoyancy tank drinking water, displacement is greater than semi-submersible drilling unit light weight, consumable store loaded weight, ballast water weight sum.
6. a kind of tubular buoyancy tank many columns semisubmersible platform as described in any one of Claims 1 to 4, is characterized in that: described tubular buoyancy tank inside arranges propelling unit cabin, arranges all-direction propeller bottom described tubular buoyancy tank.
7. a kind of tubular buoyancy tank many columns semisubmersible platform as claimed in claim 5, is characterized in that: described tubular buoyancy tank inside arranges propelling unit cabin, arranges all-direction propeller bottom described tubular buoyancy tank.
8. a kind of tubular buoyancy tank many columns semisubmersible platform as described in Claims 1 to 4,7 any one, is characterized in that: described column adopts circular cross section or polygonal crosssection, and the junction of described column and described tubular buoyancy tank adopts bracket to strengthen.
9. a kind of tubular buoyancy tank many columns semisubmersible platform as described in Claims 1 to 4,7 any one, it is characterized in that: described platform deck adopts rectangular configuration or circular configuration, form basic carrying structure, top covering steel plate as deck plane by the beam be criss-cross arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510459665.3A CN105151241A (en) | 2015-07-30 | 2015-07-30 | Multi-stand-column semi-submersible platform for cylindrical floating box |
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| CN201510459665.3A CN105151241A (en) | 2015-07-30 | 2015-07-30 | Multi-stand-column semi-submersible platform for cylindrical floating box |
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| CN201510459665.3A Pending CN105151241A (en) | 2015-07-30 | 2015-07-30 | Multi-stand-column semi-submersible platform for cylindrical floating box |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716587A (en) * | 2016-03-22 | 2016-06-29 | 中电科海洋信息技术研究院有限公司 | Water-area information monitoring system |
| CN105730641A (en) * | 2016-03-22 | 2016-07-06 | 中电科海洋信息技术研究院有限公司 | Water area information monitoring platform |
| CN106005291A (en) * | 2016-06-02 | 2016-10-12 | 哈尔滨工程大学 | Oblong floating production storage and offloading (FPSO) ship |
| CN106347595A (en) * | 2016-09-30 | 2017-01-25 | 南通中远船务工程有限公司 | Cylinder type maritime work platform |
| CN106741697A (en) * | 2017-01-06 | 2017-05-31 | 上海利策科技股份有限公司 | A kind of semisubmersible platform |
| CN107142918A (en) * | 2017-04-06 | 2017-09-08 | 华电重工股份有限公司 | The marine floading condition operational method of self-elevating work platform half |
| CN107215432A (en) * | 2016-03-22 | 2017-09-29 | 中电科海洋信息技术研究院有限公司 | Marine monitoring floating platform |
| CN107914834A (en) * | 2017-12-12 | 2018-04-17 | 中海油能源发展股份有限公司 | A kind of polygon floating production storage unit |
| CN108045518A (en) * | 2017-12-11 | 2018-05-18 | 中国船舶重工集团公司第七〇九研究所 | Suitable for the semi-submersible offshore nuclear power platform at deep-sea |
| CN108473185A (en) * | 2015-12-24 | 2018-08-31 | 吉宝岸外与海事技术中心 | Harmonic motion semi-submersible type raised platform around a well |
| CN108791737A (en) * | 2017-04-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | A kind of jack up partly latent multifunctional platform |
| CN109029210A (en) * | 2018-07-11 | 2018-12-18 | 中国海洋大学 | Floating ocean platform measurement of air gap system and method |
| CN111232141A (en) * | 2020-01-14 | 2020-06-05 | 西安石油大学 | Marine floating body with movable ballast tank |
| CN111301624A (en) * | 2020-04-14 | 2020-06-19 | 山东省工业设计研究院有限公司 | Ocean platform |
| CN112606965A (en) * | 2021-01-06 | 2021-04-06 | 上海交通大学 | Novel floating ocean platform with self-sufficient energy and fresh water and method thereof |
| WO2022226908A1 (en) * | 2021-04-29 | 2022-11-03 | 浙江大学 | Semisubmersible drilling platform with drilling frame arranged on main deck directly above stand column |
| CN115675769A (en) * | 2022-12-30 | 2023-02-03 | 上海雄程海洋工程股份有限公司 | Bottom-sitting type movable offshore platform and working method thereof |
| US11584481B2 (en) | 2016-03-22 | 2023-02-21 | Cetc Ocean Information Co., Ltd. | Floating observation system |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108473185A (en) * | 2015-12-24 | 2018-08-31 | 吉宝岸外与海事技术中心 | Harmonic motion semi-submersible type raised platform around a well |
| CN108473185B (en) * | 2015-12-24 | 2020-06-12 | 吉宝岸外与海事技术中心 | Low-motion semi-submersible type well platform |
| CN105730641A (en) * | 2016-03-22 | 2016-07-06 | 中电科海洋信息技术研究院有限公司 | Water area information monitoring platform |
| US11584481B2 (en) | 2016-03-22 | 2023-02-21 | Cetc Ocean Information Co., Ltd. | Floating observation system |
| CN107215432B (en) * | 2016-03-22 | 2019-05-14 | 中电科海洋信息技术研究院有限公司 | Marine monitoring floating platform |
| CN107215432A (en) * | 2016-03-22 | 2017-09-29 | 中电科海洋信息技术研究院有限公司 | Marine monitoring floating platform |
| CN105716587A (en) * | 2016-03-22 | 2016-06-29 | 中电科海洋信息技术研究院有限公司 | Water-area information monitoring system |
| CN106005291A (en) * | 2016-06-02 | 2016-10-12 | 哈尔滨工程大学 | Oblong floating production storage and offloading (FPSO) ship |
| CN106347595B (en) * | 2016-09-30 | 2019-03-15 | 南通中远船务工程有限公司 | Cylindrical marine work platform |
| CN106347595A (en) * | 2016-09-30 | 2017-01-25 | 南通中远船务工程有限公司 | Cylinder type maritime work platform |
| CN106741697A (en) * | 2017-01-06 | 2017-05-31 | 上海利策科技股份有限公司 | A kind of semisubmersible platform |
| CN107142918A (en) * | 2017-04-06 | 2017-09-08 | 华电重工股份有限公司 | The marine floading condition operational method of self-elevating work platform half |
| CN107142918B (en) * | 2017-04-06 | 2019-06-04 | 华电重工股份有限公司 | Marine half floading condition operational method of self-elevating work platform |
| CN108791737A (en) * | 2017-04-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | A kind of jack up partly latent multifunctional platform |
| CN108791737B (en) * | 2017-04-28 | 2024-05-03 | 中石化石油工程技术服务有限公司 | Self-elevating semi-submersible multifunctional platform |
| CN108045518A (en) * | 2017-12-11 | 2018-05-18 | 中国船舶重工集团公司第七〇九研究所 | Suitable for the semi-submersible offshore nuclear power platform at deep-sea |
| CN107914834A (en) * | 2017-12-12 | 2018-04-17 | 中海油能源发展股份有限公司 | A kind of polygon floating production storage unit |
| CN107914834B (en) * | 2017-12-12 | 2023-08-29 | 中海油能源发展股份有限公司 | Polygonal floating type oil storage device for production |
| CN109029210A (en) * | 2018-07-11 | 2018-12-18 | 中国海洋大学 | Floating ocean platform measurement of air gap system and method |
| CN109029210B (en) * | 2018-07-11 | 2023-11-28 | 中国海洋大学 | Floating ocean platform air gap measurement system and method thereof |
| CN111232141A (en) * | 2020-01-14 | 2020-06-05 | 西安石油大学 | Marine floating body with movable ballast tank |
| CN111301624A (en) * | 2020-04-14 | 2020-06-19 | 山东省工业设计研究院有限公司 | Ocean platform |
| CN112606965A (en) * | 2021-01-06 | 2021-04-06 | 上海交通大学 | Novel floating ocean platform with self-sufficient energy and fresh water and method thereof |
| WO2022226908A1 (en) * | 2021-04-29 | 2022-11-03 | 浙江大学 | Semisubmersible drilling platform with drilling frame arranged on main deck directly above stand column |
| CN115675769A (en) * | 2022-12-30 | 2023-02-03 | 上海雄程海洋工程股份有限公司 | Bottom-sitting type movable offshore platform and working method thereof |
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Application publication date: 20151216 |