CN203767043U - Tension leg platform - Google Patents
Tension leg platform Download PDFInfo
- Publication number
- CN203767043U CN203767043U CN201420126409.3U CN201420126409U CN203767043U CN 203767043 U CN203767043 U CN 203767043U CN 201420126409 U CN201420126409 U CN 201420126409U CN 203767043 U CN203767043 U CN 203767043U
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- tension leg
- platform
- tension
- leg platform
- hull
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Abstract
The utility model discloses a tension leg platform. The tension leg platform comprises a ship hull, an upper deck and tension legs; the ship hull comprises six upright columns and six buoyancy tanks; the heads and the tails of the buoyancy tanks are connected with one ends of the upright columns to form an annular ship hull; the upper deck is arranged on the ship hull far away from the end of the buoyancy tanks; the bottoms of the upright columns are connected to the tension legs, and the other ends of the tension legs are connected with a sea-floor foundation. The tension leg platform is capable of allowing an upper structure (for example, the upper deck, provided with oil and gas production and treatment, public, and living facilities, and the like) and the ship hull to be abutted with a wharf, the entire abutted platform is towed to an installation site and mounted; all operations are realized without using a temporary float bowl or other professional equipment, and no large floating crane is needed for installation at sea. The six upright columns and two tension legs of the tension leg platform are capable of providing greater restoring force in place and guaranteeing the movement performance of the platform, and meanwhile, due to the increased upright columns, the redundancy of the tension legs is increased, and consequently, the platform is enabled to have better survivability in case that one individual tension leg is broken.
Description
Technical field
The utility model 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 general 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 could 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 whole towage of implementation platform, platform need to have enough buoyancy, and platform after whole 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.
Utility model content
The purpose of this utility model 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 utility model, 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 utility model 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 utility model, 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 utility model 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 utility model 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 utility model can allow topside (as Texas deck, be provided with the facilities such as production of hydrocarbons is processed, public, life) carry out harbour with hull and dock, platform and integrally towage after docking is also installed to erecting stage, all operations is not all used temporary buoy or other professional equipment, marine installation without large-scale floating crane.6 column * 2 tension leg that the utility model 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 the utility model tension leg platform.
Fig. 2 is another block diagram of hull in the utility model tension leg platform.
Fig. 3 is the birds-eye view of hull in the utility model tension leg platform.
Fig. 4 is the birds-eye view of the utility model tension leg platform.
Fig. 5 is an elevation drawing of the utility model tension leg platform.
Fig. 6 is another elevation drawing of the utility model tension leg platform.
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 utility model is described further, but the utility model is not limited to following examples.
As 1 and Fig. 2 as shown in, a kind of six post tension leg platforms that the utility model provides, 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 comprised 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. tension leg platform according to claim 3, is characterized in that: described hull is hexagon.
5. tension leg platform according to claim 4, 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. tension leg platform according to claim 5, is characterized in that: described Texas deck is global formation or divides body formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126409.3U CN203767043U (en) | 2014-03-19 | 2014-03-19 | Tension leg platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126409.3U CN203767043U (en) | 2014-03-19 | 2014-03-19 | Tension leg platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203767043U true CN203767043U (en) | 2014-08-13 |
Family
ID=51284264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420126409.3U Withdrawn - After Issue CN203767043U (en) | 2014-03-19 | 2014-03-19 | Tension leg platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203767043U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879524A (en) * | 2014-03-19 | 2014-06-25 | 中国海洋石油总公司 | Tension leg platform |
| CN105564606A (en) * | 2016-02-23 | 2016-05-11 | 中国海洋石油总公司 | Method for rapidly detaching and tying back temporary buoy tying rigging of tension legs |
| CN106697209A (en) * | 2016-12-27 | 2017-05-24 | 浙江海洋大学 | Deep water tension leg platform device and real-time monitoring method of vertical pipe thereof |
-
2014
- 2014-03-19 CN CN201420126409.3U patent/CN203767043U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879524A (en) * | 2014-03-19 | 2014-06-25 | 中国海洋石油总公司 | Tension leg platform |
| CN103879524B (en) * | 2014-03-19 | 2016-08-17 | 中国海洋石油总公司 | A kind of tension leg platform (TLP) |
| CN105564606A (en) * | 2016-02-23 | 2016-05-11 | 中国海洋石油总公司 | Method for rapidly detaching and tying back temporary buoy tying rigging of tension legs |
| CN106697209A (en) * | 2016-12-27 | 2017-05-24 | 浙江海洋大学 | Deep water tension leg platform device and real-time monitoring method of vertical pipe thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |