CN104018481B - A kind of bucket foundation list leg post production platform - Google Patents
A kind of bucket foundation list leg post production platform Download PDFInfo
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- CN104018481B CN104018481B CN201410215018.3A CN201410215018A CN104018481B CN 104018481 B CN104018481 B CN 104018481B CN 201410215018 A CN201410215018 A CN 201410215018A CN 104018481 B CN104018481 B CN 104018481B
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Abstract
The present invention relates to a kind of bucket foundation list leg post production platform, it comprises bucket foundation, under bucket foundation is positioned at mud face, horizontal truss is positioned at Ni Mianchu and joins end to end and form triangle horizontal plane, each tie point one end face is welded on bucket foundation respectively, and other end is welded with sub-truss and gin pole; Gin pole is welded on a tie point being connected and composed by horizontal truss, and gin pole bottommost welds with bucket foundation; Two sub-truss one end are welded on all the other two tie points respectively, and the other end is all welded on gin pole, and is positioned at more than below horizontal plane, mud face with the pad of gin pole; Horizontal truss, sub-truss and gin pole form space tetrahedral structure; Boarding platform is positioned at more than the water surface, is arranged on gin pole top; Job platform is positioned at above boarding platform, is arranged on the top of gin pole; Also cat ladder is provided with between boarding platform and job platform.The present invention can extensively at sea apply in oil gas field field.
Description
Technical field
The present invention relates to the production platform in a kind of offshore oil and gas field field, particularly about a kind of bucket foundation list leg post production platform.
Background technology
China offshore oil and gas Tanaka has quite a few to belong to marginal field, and how cost-effectively marginal field development is the problem that domestic Offshore Engineering circle is concerned about always.Facts have proved, it is simple that simple platform has structure, and the feature that steel using amount is few, can greatly reduce the development cost of offshore oil and gas field.Through years of researches, be born multiple simple platform scheme.But, these simple platform schemes or platform weight still bigger than normal, or manufacture, installation process is still more loaded down with trivial details, and can not reuse or moving process complicated, the expense of recycling is too high.The external platform structure that causes of the simple platform waterproof casing of especially many Bohai Sea Area bears larger sea ice load.Therefore, continue to do deep research to simple platform system, the simple platform scheme of development of new is very necessary.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of bucket foundation list leg post production platform, its structure is more simple, and steel using amount is less, can reuse, and adapts to ice formation, the Bohai Sea, can reduce the sea ice force that waterproof casing brings to platform.
For achieving the above object, the present invention takes following technical scheme: a kind of bucket foundation list leg post production platform, is characterized in that: it comprises three bucket foundations, three horizontal truss, two sub-trusses, a gin pole, cat ladder, a boarding platform and a job platform; Under bucket foundation described in each is positioned at mud face, for providing the bearing capacity needed for platform and being convenient to movement and the resettlement of platform; Three described horizontal truss are positioned at Ni Mianchu and join end to end and form triangle horizontal plane, and each tie point one end face is welded on described bucket foundation respectively, and each tie point other end is welded with described two sub-trusses and gin pole respectively; Described gin pole is for supporting described boarding platform and job platform, and described gin pole is welded on a tie point being connected and composed by described horizontal truss, and described gin pole bottommost also welds with described bucket foundation through this tie point; Two described sub-truss one end are welded on respectively by all the other two tie points that described horizontal truss is formed, and the other end is all welded on described gin pole, and is positioned at more than below horizontal plane, mud face with the pad of described gin pole; Three described horizontal truss, two described sub-trusses and described gin poles form space tetrahedral structure; Described boarding platform is positioned at more than the water surface, is arranged on described gin pole top; Described job platform is positioned at above described boarding platform, is arranged on the top of described gin pole; On described gin pole, between described boarding platform and described job platform, be also provided with described cat ladder.
Be positioned at three described horizontal truss and form triangle horizontal plane, be also provided with multiple triatic stay.
Be positioned at described space tetrahedral structure, between described gin pole and junction to a two described sub-truss of described horizontal truss, between two described sub-trusses, be all welded with a Space Oblique to strut.
Described job platform is arranged simple and easy electric hoist type loop wheel machine; Described job platform is also provided with one deck deck structure, and described deck structure adopts beam column panel space frame, and node is for being rigidly connected; Oblique strut is also provided with between described gin pole and described job platform.
Waterproof casing, cable protecting tube is provided with in described gin pole.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to adopting bucket foundation, thus when ensure that platform bearer power is met, movement and the resettlement of implementation platform can be easy to, with the recycling of implementation platform.2, the present invention forms only leg open side type structure owing to adopting by gin pole, boarding platform and job platform are set on gin pole top, enormously simplify platform structure, reduce the environmental load such as sea ice and wave, decrease the steel using amount of platform, thus save platform construction cost greatly.3, the present invention can utilize bucket foundation (suction pile) to realize, from installing, thus greatly saving offshore installation construction expense, effectively can improving the exploitation economic benefit of platform to target oil field at manufacturing field integral constructing.4, waterproof casing, cable protecting tube etc. are placed in gin pole by the present invention, greatly reduce the size of platform structure at Water Plane place, thus the ocean environmental loads that minimizing structure is born, especially in the situation of ice formation, the Bohai Sea, the sea ice load suffered by platform structure can greatly be reduced.The present invention can extensively at sea apply in oil gas field field.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram 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 bucket foundation list leg post production platform, it comprises three bucket foundations, 1, three horizontal truss, 2, two sub-trusses, 4, gin pole, 3, cat ladder, 7, boarding platform 5 and a job platform 6; Wherein, each bucket foundation 1 is all suction pile; Gin pole 3 forms only leg open side type structure of the present invention, is main support structure of the present invention.
Under each bucket foundation 1 is positioned at mud face, for providing the bearing capacity needed for platform and being convenient to movement and the resettlement of platform.
Three horizontal truss 2 are positioned at Ni Mianchu and join end to end and form triangle horizontal plane, each tie point one end face is welded on bucket foundation 1 respectively, each tie point other end is welded with gin pole 3 and two sub-trusses 4 respectively, to make the vertical load of production platform and level environment load effectively be delivered on three bucket foundations 1, ensure that three bucket foundations 1 are fixed as a whole stressed simultaneously.
Gin pole 3 is for supporting boarding platform 5 and job platform 6, gin pole 3 is welded on a tie point being connected and composed by horizontal truss 2, gin pole 3 bottommost also welds with bucket foundation 1 through this tie point, and single gin pole 3 supports the environmental load that can greatly reduce suffered by platform structure of the present invention; Waterproof casing, cable protecting tube etc. are placed in gin pole 3, to reduce the environmental load of platform structure of the present invention suffered by horizontal plane annex.
Two sub-truss 4 one end are welded on respectively by all the other two tie points that horizontal truss 2 is formed, and the other end is all welded on gin pole 3, and is positioned at more than below horizontal plane, mud face with the pad of gin pole 3; Three horizontal truss 2, gin pole 3 and two sub-trusses 4 form space tetrahedral structure, be positioned at this space tetrahedral structure, a Space Oblique is all welded with to strut 8, to ensure the spatial stability of two sub-trusses 4 between gin pole 3 and junction to two sub-truss 4 of horizontal truss 2, between two sub-trusses 4.
Boarding platform 5 is positioned at more than the water surface, is arranged on gin pole 3 top, to meet the operating space requirement of platform by ship time personnel.
Job platform 6 is positioned at above boarding platform 5, is arranged on the top of gin pole 3, ensures to leave enough air gaps to avoid shipping of green water between job platform 6 and horizontal plane; On gin pole 3, between boarding platform 5 and job platform 6, be also provided with cat ladder 7, so that operating personnel etc. carry out platform operations; Job platform 6 can also arrange existing simple and easy electric hoist type loop wheel machine.Wherein:
Job platform 6 is also provided with one deck deck structure, and deck structure adopts beam column panel space frame, and node is for being rigidly connected; Between gin pole 3 and job platform 6, be also provided with oblique strut, form space beveled structure, this deck structure can arrange relevant oil production equipment.
In above-described embodiment, be positioned at three horizontal truss 2 and form triangle horizontal plane, be also provided with multiple triatic stay 9, to ensure the stability of horizontal truss 2.
In sum, the present invention in use, its principle is as follows: when adopting bucket foundation list leg post production platform of the present invention to carry out marine petroleum exploitation, bucket foundation 1, horizontal truss 2, gin pole 3, sub-truss 4, boarding platform 5, job platform 6, cat ladder 7 and other element precasts are become an integrated member by build the side.With barge, site, oil field is delivered in the integrated member holder shipping be prefabricated into during offshore construction, with crane barge, platform is transferred in water, and utilize platform deadweight to make bucket foundation 1 bottom surface enter mud 2m formation air-proof condition, start pumping system and continue injection bucket foundation 1, in penetration process after the interior clear mud of bucket foundation 1, restart pumping system by 1.0m under the injection to mud face of bucket foundation 1 end face, by anti-water filling jacking in penetration process, carry out bucket foundation 1 leveling operation, after completing with stage+module in bucket foundation 1 penetration process, need Platform center position, absolute altitude, the parameter such as azimuth and levelness is measured.
After installation in position of the present invention, its structural shape meets the requirement of the jackup vessel brill completion of band semi girder, drill ship pitching pile position and bucket foundation have enough safe distances, cause the damage of soil body around it can not affect reliability and the bearing capacity of bucket foundation 1 in drill ship pitching pile and pile pulling process.
After employing the present invention completes the mining operations of wellblock, oil field, to reclaim platform, construction operation process is as follows: first utilize well head internal cutting system to carry out internal cutting at the following certain depth in mud face to waterproof casing, uses crane barge to be hung out by the waterproof casing of cut-out; Then to water filling in bucket foundation 1, by deck roof mud extraction face, use crane barge platform to be hung barge assigned address and fix butt and to navigate find site.
The various embodiments described above are only for illustration of the present invention; the connection of each parts and structure all can change to some extent; on the basis of technical solution of the present invention; all improvement of carrying out the connection of individual part and structure according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.
Claims (3)
1. a bucket foundation list leg post production platform, is characterized in that: it comprises three bucket foundations, three horizontal truss, two sub-trusses, a gin pole, cat ladder, a boarding platform and a job platform;
Under bucket foundation described in each is positioned at mud face, for providing the bearing capacity needed for platform and being convenient to movement and the resettlement of platform;
Three described horizontal truss are positioned at Ni Mianchu and join end to end and form triangle horizontal plane, and each tie point one end face is welded on described bucket foundation respectively, and each tie point other end is welded with described two sub-trusses and gin pole respectively;
Described gin pole is for supporting described boarding platform and job platform, and described gin pole is welded on a tie point being connected and composed by described horizontal truss, and described gin pole bottommost is through this tie point and weld with described bucket foundation;
Two described sub-truss one end are welded on respectively by all the other two tie points that described horizontal truss is formed, and the other end is all welded on described gin pole, and is positioned at more than below horizontal plane, mud face with the pad of described gin pole; Three described horizontal truss, two described sub-trusses and described gin poles form space tetrahedral structure;
Described boarding platform is positioned at more than the water surface, is arranged on described gin pole top;
Described job platform is positioned at above described boarding platform, is arranged on the top of described gin pole; On described gin pole, between described boarding platform and described job platform, be also provided with described cat ladder;
Be positioned at three described horizontal truss and form triangle horizontal plane, be also provided with multiple triatic stay;
Be positioned at described space tetrahedral structure, between described gin pole and junction to a two described sub-truss of described horizontal truss, between two described sub-trusses, be all welded with a Space Oblique to strut.
2. a kind of bucket foundation list leg post production platform as claimed in claim 1, is characterized in that: described job platform is arranged simple and easy electric hoist type loop wheel machine; Described job platform is also provided with one deck deck structure, and described deck structure adopts beam column panel space frame, and node is for being rigidly connected; Oblique strut is also provided with between described gin pole and described job platform.
3. a kind of bucket foundation list leg post production platform as claimed in claim 1 or 2, is characterized in that: be provided with waterproof casing, cable protecting tube in described gin pole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410215018.3A CN104018481B (en) | 2014-05-21 | 2014-05-21 | A kind of bucket foundation list leg post production platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215018.3A CN104018481B (en) | 2014-05-21 | 2014-05-21 | A kind of bucket foundation list leg post production platform |
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| CN104018481A CN104018481A (en) | 2014-09-03 |
| CN104018481B true CN104018481B (en) | 2016-03-23 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109930576A (en) * | 2019-04-19 | 2019-06-25 | 中交第一航务工程勘察设计院有限公司 | A kind of assembled bucket foundation sea geological prospecting platform structure |
| CN112681274B (en) * | 2020-12-02 | 2022-10-14 | 中国电建集团华东勘测设计研究院有限公司 | Self-floating and self-elevating offshore electrical platform and installation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6745852B2 (en) * | 2002-05-08 | 2004-06-08 | Anadarko Petroleum Corporation | Platform for drilling oil and gas wells in arctic, inaccessible, or environmentally sensitive locations |
| CN2878506Y (en) * | 2004-11-29 | 2007-03-14 | 天津市海王星海上工程技术有限公司 | Single point mooring portal platform |
| CN2911009Y (en) * | 2006-01-23 | 2007-06-13 | 中国海洋石油总公司 | One-leg three-pile simple platform suitable for developing medium-small oil fields in sea |
| CN201546211U (en) * | 2009-09-28 | 2010-08-11 | 中交第二航务工程勘察设计院有限公司 | Static pressure fixed drilling platform assembled at sea |
| CN201695381U (en) * | 2010-06-04 | 2011-01-05 | 中国海洋石油总公司 | Three-cylindrical foundation one-legged mooring platform |
| CN203866802U (en) * | 2014-05-21 | 2014-10-08 | 中国海洋石油总公司 | Single-foot column oil production platform |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |