CN103397623B - A kind of offshore platform - Google Patents

A kind of offshore platform Download PDF

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Publication number
CN103397623B
CN103397623B CN201310338747.3A CN201310338747A CN103397623B CN 103397623 B CN103397623 B CN 103397623B CN 201310338747 A CN201310338747 A CN 201310338747A CN 103397623 B CN103397623 B CN 103397623B
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panel
hydraulic cylinder
hole
reference column
framework
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CN201310338747.3A
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CN103397623A (en
Inventor
贺波
阮志栋
吴雪平
干卓君
徐晓
陈勇
张国锐
赵小鹏
支交平
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Jiesheng Offshore Engineering Equipment Co., Ltd.
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JESSN MARINE EQUIPMENT Co Ltd
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Abstract

The invention discloses a kind of offshore platform, comprise barge and reference column, barge is provided with the first through hole, lifting mechanism is provided with above first through hole, reference column is located in lifting mechanism and the first through hole, lifting mechanism comprises two the first panels, linked together by some first hydraulic cylinders between two the first panels, two piece of first panel is all provided with for the second through hole through reference column, second through hole both sides are provided with bracing frame, bracing frame is fixed on the first panel, bracing frame is hinged with block teeth, block teeth are bending-like, block teeth are hinged with the second hydraulic cylinder, second hydraulic cylinder is hinged on the first panel, reference column comprises a pillar steel work framework, some support bars are provided with in framework, two lateral surfaces that framework is relative are provided with tooth bar, block teeth coordinate with tooth bar, this offshore platform structure is simple, convenient control, same barge can carry longer support bar, the marine site work that can more deepening.

Description

A kind of offshore platform
Technical field
The present invention relates to ocean engineering and shipbuilding technical field, particularly relate to a kind of offshore platform.
Background technology
Along with scientific and technological level development, the mankind deeply visit to ocean gradually and get resource, and must need to arrange offshore platform at sea when resource is got in spy, and offshore platform mainly comprises fixed offshore platform and floating offshore platform.
Fixed offshore platform immobilizes position within whole useful life period, and its form has a formula, guy wire formula and gravity etc.Stake formula platform is made up of cushion cap and pile foundation.Pile foundation has the kinds such as timber, piling bar and reinforced concrete pile, when constructing, it is squeezed into seabed, it has been installed cushion cap.A prefabricated head tower, also known as lashing tower platform, is placed on seafloor foundation block by guy wire formula platform, forms along different directions grappling tension with cable wire.Gravity platform occupies stably on the firm stratum of seabed by the weight of platform self, and the ability resisting storm and wave attack is strong.
Floating offshore platform is a kind of large-scale buoyancy aid, and what have can move, and what have does not move.Transportable floating platform, also known as movable platform, it is constantly changed the needs in place for adapting to the operation on the sea such as exploration, construction, maintenance and grow up.Conventional floating offshore platform is that bottom-supported platform (also known as floatable platform) is used for the more shallow waters of the depth of water, and its top is spar deck, and bottom is the buoyancy tank doubling as mat, centre column or truss support.During operation, in buoyancy tank, water filling makes it to be located seabed; After operation, water in case is extracted out, platform relies on the buoyancy of self to rise.2. jack-up unit adapts to depth of water scope comparatively greatly, and be a barge when floating state, some column types or truss framed leg are equipped with in its four sides, controls lifting with gear, tooth bar or hydraulic mechanism.During operation, put down spud leg and insert seabed certain depth, thus hull bottom is held out the water surface, becoming spar deck.After operation, fall hull, pull up spud leg, can towage extremely new place.The title mat jack-up unit of spud leg bottom belt box-shaped mat, the title pitching pile jack-up unit not with mat.3. semisubmersible platform is used for the larger marine site of the depth of water, is also made up of upper strata spar deck, lower floor's float structure, middle standing pillar or truss three part.Lower floor's float structure divides again pontoon formula and floating box type two kinds, and pontoon formula is more conducive to navigation, therefore the newly-built two pontoon formula of the many employings of boat semisubmersible platform certainly.Be in partially surfaced condition during this platform operations, adopt anchoring location or dynamic positioning.After operation, discharge the water in ballast tank, float up to towage water line, anchor displacement can be received.The minority semisubmersible platform of past construction has the function of bottom-sitting type concurrently, also can be located seabed in phytal zone and carry out operation.4. boat form platform (i.e. drill ship) is on common boats and ships, add a job platform, boats and ships have monomer and binary point, generally from boat, anchoring location or dynamic positioning during operation, can be adopted.Current transportable floating platform should be with the most use in submarine oil and natural gas exploration.The complex structure of traditional jack-up unit, operate very inconvenient, reference column is all generally solid, what reference column was solid mainly consider inserts the anti-pressure ability behind seabed, and due to reference column length longer, therefore the weight of reference column is larger, therefore barge during floating state needs very large buoyancy guarantee barge and can float on the surface, therefore very high to the manufacture requirements of barge, or shorter reference column can only be furnished with, make jack-up unit can only at more shallow marine usage.
Summary of the invention
The present invention is directed to prior art deficiency, a kind of offshore platform is provided, this offshore platform structure is simple, convenient control, and more profound reference column can be equipped with, alleviating the weight of reference column, just can be furnished with the reference column more lengthened when not improving the floating force of barge, can use in the marine site of more deepening.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: a kind of offshore platform, comprise barge and some reference columns, described barge is provided with some first through holes, lifting mechanism is provided with above each described first through hole, described reference column is located in described lifting mechanism and described first through hole, described lifting mechanism comprises two the first panels, linked together by some first hydraulic cylinders between two the first panels, all described with two pieces the first panel of described first hydraulic cylinder is vertical arbitrarily, two pieces of described first panels are all provided with for the second through hole through described reference column, described second through hole both sides are provided with bracing frame, support frame as described above is fixed on described first panel, support frame as described above is hinged with block teeth, described block teeth are bending-like, described block teeth are hinged with the second hydraulic cylinder, described second hydraulic cylinder is hinged on described first panel, support frame as described above and block teeth, block teeth and the second hydraulic cylinder, second hydraulic cylinder is identical with the hinged direction of the first panel, described reference column comprises a pillar steel work framework, some support bars are provided with in described framework, described some support bars comprise pressure-bearing post, described pressure-bearing post two ends are provided with the second panel for increasing contact surface between described framework, two lateral surfaces that described framework is relative are provided with tooth bar, described block teeth coordinate with described tooth bar.
In technique scheme, preferably, some reinforcing ribs are provided with between described pressure-bearing post and described second panel.
In technique scheme, preferably, described first panel is the frame type steel plate structure that outside is coated with steel plate.
In technique scheme, preferably, be also provided with the 3rd panel in described framework, described 3rd panel is provided with some third through-holes, and described support bar is located in described third through-hole.
In technique scheme, preferably, be provided with hemispherical projections bottom described framework, described hemispherical projections side extends some fins.Hemispherical projections is set and fin makes easily to stretch into seabed during reference column seabed interaction, and plays guide effect in the process stretched into seabed at reference column.
In technique scheme, preferably, described first hydraulic cylinder two ends are rotatably connected to the first fixed block, and described first fixed block is fixed on described first panel, and described first hydraulic cylinder two ends are mutually vertical with the direction that the first fixed block is rotationally connected.
The present invention compared with prior art, has following beneficial effect:
The present invention carries out scaling operation by simple hydraulic system structure to reference column, and it is convenient to control, and reference column boring adopts they sup-port, decreases weight and provides cost savings, and make the barge of formed objects can carry longer support bar, the marine site work that can more deepening.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the structural representation of barge.
Fig. 3 is the part-structure schematic diagram of reference column.
Fig. 4 is reference column internal construction schematic diagram.
Fig. 5 is the structural representation of support bar.
Fig. 6 is the structural representation of reference column and lifting mechanism junction.
Fig. 7 is the partial enlarged drawing in Fig. 6.
Fig. 8 is the structural representation of the first panel of the outside steel plate of removing.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail: see Fig. 1 to Fig. 8, a kind of offshore platform, comprise barge 1 and four reference columns 2, described barge 1 is provided with four the first through holes 11, lifting mechanism 3 is provided with above each described first through hole 11, described reference column 2 is located in described lifting mechanism 3 and described first through hole 11, described lifting mechanism 3 comprises two the first panels 31, linked together by eight the first hydraulic cylinders 32 between two the first panels 31, all described with two pieces the first panel 31 of described first hydraulic cylinder 32 is vertical arbitrarily, described first hydraulic cylinder 32 two ends are rotatably connected to the first fixed block 37, described first fixed block 37 is fixed on described first panel 31, the direction that described first hydraulic cylinder 32 two ends and the first fixed block 37 are rotationally connected is mutually vertical, two pieces of described first panels 31 are all provided with for the second through hole 33 through described reference column 2, described second through hole 33 both sides are provided with bracing frame 34, support frame as described above 34 is fixed on described first panel 31, support frame as described above 34 is hinged with block teeth 35, described block teeth 35 are in bending-like, described block teeth 35 are hinged with the second hydraulic cylinder 36, described second hydraulic cylinder 36 is hinged on described first panel 31.The hinged direction of support frame as described above 34 and block teeth 35, block teeth 35 and the second hydraulic cylinder 36, second hydraulic cylinder 36 and the first panel 31 is identical.In order to alleviate total quality and the installation facilitating the first hydraulic cylinder 32, second hydraulic cylinder 36 and bracing frame 34, described first panel 31 is the outside frame type steel plate structure being coated with steel plate.
Described reference column 2 is arranged on described barge 1 through described first through hole 11 and the second through hole 33, in order to alleviate quality, described reference column 2 comprises a pillar steel work framework 21, some support bars 22 are provided with in described framework 21, described some support bars 22 comprise pressure-bearing post 221, described pressure-bearing post 221 two ends are provided with the second panel 222 for increasing contact surface between described framework 21, some reinforcing ribs 223 are provided with between described pressure-bearing post 221 and described second panel 222, in order to conveniently locate when installing support bar 22 in framework 21, the 3rd panel 24 is also provided with in described framework 21, described 3rd panel 24 is provided with some third through-holes 241, described support bar 22 is located in described third through-hole 241, two lateral surfaces that described framework 21 is relative are provided with tooth bar 23, described block teeth 35 coordinate with described tooth bar 23 and are fixed on described barge 1 by described reference column 2, bottom described framework 21, seabed interaction place is provided with hemispherical projections 25, described hemispherical projections 25 side extends some fins 26, hemispherical projections 25 is set and fin 26 makes easily to stretch into seabed during reference column 2 seabed interaction, and in the process that reference column 2 stretches into seabed, play guide effect.
Described first hydraulic cylinder 32 and the second hydraulic cylinder 36 are all connected with oil pump and control device.
This offshore platform drags to precalculated position by ship before operation, in order to reduce resistance when barge 1 drags, reference column 2 is clamped originally to be positioned at by block teeth 35 and does not stretch into the water surface topmost, when behind arrival precalculated position, second hydraulic cylinder 36 of top shrinks and makes the block teeth 35 of top unclamp tooth bar 23, then the first hydraulic cylinder 32 extends, second hydraulic cylinder 36 of top extends and makes the block teeth 35 of top clamp tooth bar 23, then the second hydraulic cylinder 36 of below shrinks and makes the block teeth 35 of below unclamp tooth bar 32, then the first hydraulic cylinder 32 shrinks, the relative barge 1 of reference column 2 is moved downward, then the second hydraulic cylinder 36 of below extends, the block teeth 35 of below are made to block tooth bar 23, repeat so operation, until reference column 2 stretches into seabed, again barge 1 plane is carried away the water surface afterwards.When platform needs to shift to other places, contrary operation is adopted to be extracted from seabed by reference column 2 and promote.

Claims (6)

1. an offshore platform, comprise barge (1) and some reference columns (2), described barge (1) is provided with some first through holes (11), each described first through hole (11) top is provided with lifting mechanism (3), described reference column (2) is located in described lifting mechanism (3) and described first through hole (11), it is characterized in that: described lifting mechanism (3) comprises two the first panels (31), linked together by some first hydraulic cylinders (32) between two the first panels (31), all described with two pieces the first panel (31) of described first hydraulic cylinder (32) is vertical arbitrarily, two pieces of described first panels (31) are all provided with for the second through hole (33) through described reference column (2), described second through hole (33) both sides are provided with bracing frame (34), support frame as described above (34) is fixed on described first panel (31), support frame as described above (34) is hinged with block teeth (35), described block teeth (35) are in bending-like, described block teeth (35) are hinged with the second hydraulic cylinder (36), described second hydraulic cylinder (36) is hinged on described first panel (31), support frame as described above (34) and block teeth (35), block teeth (35) and the second hydraulic cylinder (36), second hydraulic cylinder (36) is identical with the hinged direction of the first panel (31), described reference column (2) comprises a pillar steel work framework (21), some support bars (22) are provided with in described framework (21), described some support bars (22) comprise pressure-bearing post (221), described pressure-bearing post (221) two ends are provided with the second panel (222) for increasing contact surface between described framework (21), two lateral surfaces that described framework (21) is relative are provided with tooth bar (23), described block teeth (35) coordinate with described tooth bar (23).
2. a kind of offshore platform as claimed in claim 1, is characterized in that: be provided with some reinforcing ribs (223) between described pressure-bearing post (221) and described second panel (222).
3. a kind of offshore platform as claimed in claim 1, is characterized in that: described first panel (31) is the outside frame type steel plate structure being coated with steel plate.
4. a kind of offshore platform as claimed in claim 1, it is characterized in that: in described framework (21), be also provided with the 3rd panel (24), described 3rd panel (24) is provided with some third through-holes (241), and described support bar (22) is located in described third through-hole (241).
5. a kind of offshore platform as claimed in claim 1, is characterized in that: described framework (21) bottom is provided with hemispherical projections (25), and described hemispherical projections (25) side extends some fins (26).
6. a kind of offshore platform as claimed in claim 1, it is characterized in that: described first hydraulic cylinder (32) two ends are rotatably connected to the first fixed block (37), described first fixed block (37) is fixed on described first panel (31), and the direction that described first hydraulic cylinder (32) two ends and described first fixed block (37) are rotationally connected is mutually vertical.
CN201310338747.3A 2013-08-06 2013-08-06 A kind of offshore platform Active CN103397623B (en)

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CN103397623B true CN103397623B (en) 2015-11-04

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Publication number Priority date Publication date Assignee Title
CN106592556B (en) * 2017-01-13 2018-11-09 广东精铟海洋工程股份有限公司 A kind of high intensity octagon spud leg section and use its offshore work platform
CN111175077A (en) * 2019-10-30 2020-05-19 刘剑锐 Sampler for water quality monitoring

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CN101827979A (en) * 2007-07-30 2010-09-08 荷兰格斯特公司 Jacking system
CN201873985U (en) * 2010-02-22 2011-06-22 中国石油集团海洋工程有限公司 Cylindrical pile leg for self-elevating platform
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CN201873985U (en) * 2010-02-22 2011-06-22 中国石油集团海洋工程有限公司 Cylindrical pile leg for self-elevating platform
CN202099793U (en) * 2011-04-12 2012-01-04 中国海洋石油总公司 Step-type hydraulic lift used for jack-up platform
CN202124848U (en) * 2011-05-17 2012-01-25 中国石油化工集团公司 Device for leveling ocean platform lifting pile
CN202124849U (en) * 2011-05-17 2012-01-25 中国石油化工集团公司 Hydraulic lifting straightening guiding device for marine self-elevating platform
KR101270905B1 (en) * 2013-01-18 2013-06-03 박상칠 Jacking system for barge
CN203440803U (en) * 2013-08-06 2014-02-19 宁波捷胜海洋开发有限公司 Offshore platform

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Address after: 315806 No. 206 Tiantai Mountain Road, Beilun District, Zhejiang, Ningbo

Applicant after: JESSN MARINE EQUIPMENT Co.,Ltd.

Address before: 315806 No. 206 Tiantai Mountain Road, Beilun District, Zhejiang, Ningbo

Applicant before: Victory Marine Equipment Co.,Ltd.

Address after: 315806 No. 206 Tiantai Mountain Road, Beilun District, Zhejiang, Ningbo

Applicant after: Victory Marine Equipment Co.,Ltd.

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