CN103879524A - Tension leg platform - Google Patents
Tension leg platform Download PDFInfo
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- CN103879524A CN103879524A CN201410102446.5A CN201410102446A CN103879524A CN 103879524 A CN103879524 A CN 103879524A CN 201410102446 A CN201410102446 A CN 201410102446A CN 103879524 A CN103879524 A CN 103879524A
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- tension leg
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- ship body
- stand columns
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Abstract
The invention discloses a tension leg platform which comprises a ship body, an upper deck and tension legs. The ship body comprises six stand columns and six floating boxes, the heads and tails of the floating boxes are connected with one ends of the stand columns, the annular ship body is formed, the upper deck is arranged on the ship body, and is away from the floating box ends, the bottoms of the stand columns are connected with the tension legs, and the other ends of the tension legs are used for being connected with the sea-floor foundation. The tension leg platform can allow the upper structures (such as the upper deck, an oil gas production and treatment facility, a public facility and a live facility) to be in dock abut joint with the ship body, the whole platform after abutting joint can be towed to the mounting field for mounting, a temporary floating cylinder or other special equipment is not used for the operation, and a large-scale floating crane is not required by marine installation. The six stand columns and the two tension legs are arranged, larger reset force can be provided when the platform is in place, the moving performance of the platform can be ensured, meanwhile, due to the increasing of the stand columns, the redundancy of the tension legs is improved, and the platform has the better viability under the condition that a single tension leg is broken.
Description
Technical field
The present invention relates to a kind of tension leg platform.
Background technology
Tension leg platform is development in practice, basically forms a kind of typical single column or four pillar construction forms.The main thought of tension leg platform design is the structure by self, produces the buoyancy much larger than dead load, and buoyancy is except offsetting deadweight, and remainder becomes surplus buoyancy, this part buoyancy and pretension balance.
Conventional four column platforms, especially with the large-scale synthesis platform of the general-utilitys such as rig, oil gas treatment facility, electrical generator, because column is counted quantitative limitation, absorb water larger, waterplane is less, makes the operating modes such as platform docking, towage and marine installation need very large cost and risk.And the generally center in whole oil-gas field group of large-scale tension leg platform, a lot of oil-gas fields of periphery need to rely on its ability effective exploitation, and the requirement of its safety is higher.
The pretension of tension leg is less, can reduce the overall cost of platform.Typical tension leg platform, for larger restoring force and buoyancy is provided, as extension tension leg platform (ETLP) is optimized structure, stretches out sub-surface buoy, forms cantilever beam structure, structural weight is increased and build more complicated.
In order can chunk and hull to be docked at harbour, so that the overall towage of implementation platform, platform need to have enough buoyancy, and platform after entirety docking, install and transportation in center of gravity higher, reduced the stability of platform, in order to address this problem, some companies adopt " interim stability module " (Temporary stability modules is called for short TSM), to make up stability loss.
Summary of the invention
The object of this invention is to provide a kind of tension leg platform with enough stabilities, large floor space, can be used as machinery and processing platform.
A kind of tension leg platform provided by the present invention, it comprises hull, Texas deck and tension leg;
Described hull comprises 6 root posts and 6 buoyancy tanks, and the head and the tail of described buoyancy tank are connected with one end of described column, forms the described hull of a ring-type;
Described Texas deck is arranged on described hull, and away from described buoyancy tank end;
The bottom of described column connects described tension leg, and the other end of described tension leg is for being connected with seafloor foundation.
The present invention is owing to being positioned at underwater compared with depths, so described buoyancy tank is subject to the impact of water surface wave power less; Along with the increase of described column quantity, provide platform to keep the required enough water plane area of stability.
In the present invention, described hull is fixed by seafloor foundation, mainly contains the patterns such as pile foundation, suction type foundation, gravity type foundation or composite foundation.
In above-mentioned tension leg platform, every described column connects 1～3 described tension leg.
In above-mentioned tension leg platform, every described column connects 2 described tension legs, and for routine four column platforms that hang 12 tension legs, the layout of six post tension leg platform 6 column × 2 tension leg, is better than the layout of 4 column × 3 tension leg.When not only in place, can provide larger restoring force, guarantee platform exercise performance, due to the increasing of column, improve the redundancy of tension leg simultaneously, make platform in the situation that single tension leg is disrumpent feelings, there is better viability.
In above-mentioned tension leg platform, described hull is hexagon.
In above-mentioned tension leg platform, the cross-sectional plane of described column is rectangular or circular;
The cross-sectional plane of described buoyancy tank is rectangular.
In above-mentioned tension leg platform, described Texas deck is global formation or divides body formed.
Bank can be arranged to the center of Texas deck, can support dry tree system, production riser is connected with top equipment by bank, and bottom and sub-sea drilled wells join.
Hull in the present invention can be chosen in dry dock and build, and also ground, extra large workshop is built by land.The Texas deck of platform can be used as an independent module and also can be divided into several modules and build.
Texas deck in the present invention and the assembling of hull can complete and debug in harbour or dock, and need to not carry out covering deepwater field or sea, thereby have avoided the marine operation of offshore.
Tension leg platform of the present invention can allow topside (as Texas deck, be provided with the facilities such as production of hydrocarbons processing, public, life) carry out harbour with hull and dock, platform and integrally towage after docking is also installed to erecting stage, all operations does not all use temporary buoy or other professional equipment, marine installation without large-scale floating crane.6 column × 2 tension leg that the present invention arranges, when not only in place, can provide larger restoring force, guarantee platform exercise performance, simultaneously increasing due to column, improve the redundancy of tension leg, made platform in the situation that single tension leg is disrumpent feelings, there is better viability.
Accompanying drawing explanation
Fig. 1 is a block diagram of hull in tension leg platform of the present invention.
Fig. 2 is another block diagram of hull in tension leg platform of the present invention.
Fig. 3 is the birds-eye view of hull in tension leg platform of the present invention.
Fig. 4 is the birds-eye view of tension leg platform of the present invention.
Fig. 5 is an elevation drawing of tension leg platform of the present invention.
Fig. 6 is another elevation drawing of tension leg platform of the present invention.
In figure, each mark is as follows: 1 column, 2 buoyancy tanks, 3 tension legs, 4 Texas decks.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, but the present invention is not limited to following examples.
As 1 and Fig. 2 as shown in, a kind of six post tension leg platforms provided by the invention, this platform comprises six roots of sensation column 1 and six buoyancy tanks 2, wherein, column 1 is cylindrical, buoyancy tank 2 is cuboid.The head and the tail of buoyancy tank 2 are all connected with one end of column 1, and then form a hexagonal cyclic structure.The increase of column and buoyancy tank quantity, has expanded the principal dimensions of platform, and more buoyancy is provided, and has reduced surplus buoyancy simultaneously, makes platform drinking water more shallow, and waterplane is larger, has improved the stability of platform.
As shown in Figure 5 and Figure 6, the bottom of each buoyancy tank 2 connects 2 tension legs 3, and tension leg 3 is connected to seafloor foundation.Due to the increasing of principal dimensions, each tension force tendon can provide larger restoring moment, and every tension leg 3 is made up of 3 tension force tendons.
As shown in Fig. 3-Fig. 6, Texas deck 4 is arranged on hull, and away from one end of buoyancy tank 2.Texas deck 4 is rectangular, and bank is positioned at midway location.The increase of principal dimensions, makes Texas deck 4 that larger arrangement areas can be provided, and is applicable to machinery and processing platform.Column 1 and buoyancy tank 2 have made to provide larger buoyancy, have guaranteed less drinking water after docking, and Texas deck 4 can be completed and the achieving a butt joint of platform hull at harbour.
When as disrumpent feelings in platform generation wall scroll tension leg, its arrangement of 6 × 2, has guaranteed the redundancy of platform position fixing system.Article 11, the complete tension leg that is arranged in 6 root posts, makes it have enough viabilities.
Claims (6)
1. a tension leg platform, is characterized in that: it comprises hull, Texas deck and tension leg;
Described hull comprises 6 root posts and 6 buoyancy tanks, and the head and the tail of described buoyancy tank are connected with one end of described column, forms the described hull of a ring-type;
Described Texas deck is arranged on described hull, and away from described buoyancy tank end;
The bottom of described column connects described tension leg, and the other end of described tension leg is for being connected with seafloor foundation.
2. tension leg platform according to claim 1, is characterized in that: every described column connects 1～3 described tension leg.
3. tension leg platform according to claim 2, is characterized in that: every described column connects 2 described tension legs.
4. according to the tension leg platform described in any one in claim 1-3, it is characterized in that: described hull is hexagon.
5. according to the tension leg platform described in any one in claim 1-4, it is characterized in that: the cross-sectional plane of described column is rectangular or circular;
The cross-sectional plane of described buoyancy tank is rectangular.
6. according to the tension leg platform described in any one in claim 1-5, it is characterized in that: described Texas deck is global formation or divides body formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102446.5A CN103879524B (en) | 2014-03-19 | 2014-03-19 | A kind of tension leg platform (TLP) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102446.5A CN103879524B (en) | 2014-03-19 | 2014-03-19 | A kind of tension leg platform (TLP) |
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| Publication Number | Publication Date |
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| CN103879524A true CN103879524A (en) | 2014-06-25 |
| CN103879524B CN103879524B (en) | 2016-08-17 |
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| CN201410102446.5A Active CN103879524B (en) | 2014-03-19 | 2014-03-19 | A kind of tension leg platform (TLP) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323618A (en) * | 2017-06-20 | 2017-11-07 | 大连理工大学 | A kind of series connection many float-type mixing mooring and positioning systems of new tension leg platform (TLP) for ultra-deep-water operation |
| CN111232145A (en) * | 2020-03-03 | 2020-06-05 | 中海石油(中国)有限公司 | Overall layout of deepwater semi-submersible production platform |
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| US20030024459A1 (en) * | 2001-08-06 | 2003-02-06 | Davies Kent B. | Method and apparatus for reducing tension variations in mono-column TLP systems |
| CN201087343Y (en) * | 2007-09-28 | 2008-07-16 | 上海利策科技有限公司 | Improved tension leg ocean oil gas producing platform |
| AU2011101650A4 (en) * | 2011-12-16 | 2012-01-19 | Keron, Neil Alexander Dr | Self installing tension leg platform and subsea storage tank |
| CN102712348A (en) * | 2010-01-06 | 2012-10-03 | 泰克尼普法国公司 | System for increased floatation and stability on tension leg platform by extended buoyant pontoons |
| CN102939238A (en) * | 2010-02-25 | 2013-02-20 | 默代克国际股份有限公司 | Tension leg platform with improved hydrodynamic performance |
| CN102963507A (en) * | 2012-11-30 | 2013-03-13 | 大连船舶重工集团有限公司 | Annular lower floating body semi-submersible platform |
| CN202847986U (en) * | 2012-10-15 | 2013-04-03 | 大连理工大学 | Butt joint octagonal frustum type floating type oil production storage system |
| CN203767043U (en) * | 2014-03-19 | 2014-08-13 | 中国海洋石油总公司 | Tension leg platform |
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2014
- 2014-03-19 CN CN201410102446.5A patent/CN103879524B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1370122A (en) * | 1999-07-08 | 2002-09-18 | Abb拉默斯环球公司 | Basement of dragging support platform with expanded fundation |
| US20030024459A1 (en) * | 2001-08-06 | 2003-02-06 | Davies Kent B. | Method and apparatus for reducing tension variations in mono-column TLP systems |
| CN201087343Y (en) * | 2007-09-28 | 2008-07-16 | 上海利策科技有限公司 | Improved tension leg ocean oil gas producing platform |
| CN102712348A (en) * | 2010-01-06 | 2012-10-03 | 泰克尼普法国公司 | System for increased floatation and stability on tension leg platform by extended buoyant pontoons |
| CN102939238A (en) * | 2010-02-25 | 2013-02-20 | 默代克国际股份有限公司 | Tension leg platform with improved hydrodynamic performance |
| AU2011101650A4 (en) * | 2011-12-16 | 2012-01-19 | Keron, Neil Alexander Dr | Self installing tension leg platform and subsea storage tank |
| CN202847986U (en) * | 2012-10-15 | 2013-04-03 | 大连理工大学 | Butt joint octagonal frustum type floating type oil production storage system |
| CN102963507A (en) * | 2012-11-30 | 2013-03-13 | 大连船舶重工集团有限公司 | Annular lower floating body semi-submersible platform |
| CN203767043U (en) * | 2014-03-19 | 2014-08-13 | 中国海洋石油总公司 | Tension leg platform |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323618A (en) * | 2017-06-20 | 2017-11-07 | 大连理工大学 | A kind of series connection many float-type mixing mooring and positioning systems of new tension leg platform (TLP) for ultra-deep-water operation |
| CN111232145A (en) * | 2020-03-03 | 2020-06-05 | 中海石油(中国)有限公司 | Overall layout of deepwater semi-submersible production platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103879524B (en) | 2016-08-17 |
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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 |