CN202414124U - Multi-vertical-column truss type platform - Google Patents
Multi-vertical-column truss type platform Download PDFInfo
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- CN202414124U CN202414124U CN201120557287XU CN201120557287U CN202414124U CN 202414124 U CN202414124 U CN 202414124U CN 201120557287X U CN201120557287X U CN 201120557287XU CN 201120557287 U CN201120557287 U CN 201120557287U CN 202414124 U CN202414124 U CN 202414124U
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- truss
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Abstract
The utility model discloses a multi-vertical-column truss type platform, which comprises a platform upper body, a hard cabin, a segmented central well vertical column, a truss type middle section, a perpendicular oscillation plate, a soft cabin, a mooring system and a vertical tube system, and is characterized in that the hard cabin consists of four circular columns; the upper end of the hard cabin is fixedly connected with the platform upper body; a cable guider is arranged at the lower end of the hard cabin; the lower end of the hard cabin is fixedly connected with the upper end of the truss type middle section, which corresponds to the lower end of the hard cabin; the lower end of the truss type middle section is fixedly connected with the soft cabin; the segmented central well vertical column is arranged in the center of the hard cabin; the segmented central well vertical column consists of two closed central well vertical columns; and the mooring system is fixedly connected with the cable guider at the lower end of the hard cabin. The multi-vertical-column truss type platform is high in stability and motion performance, high in whole structural strength, constructed easily, low in transportation and assembly cost and wide in applicable working water domain range, can self-navigate within a short distance and can be used for developing deep sea oil fields, shallow sea oil fields or marginal oil fields.
Description
Technical field
The utility model relates to a kind of many columns truss-like oil production platform of field of ocean engineering, particularly about a kind of many columns truss-like platform that is applicable to deep-sea and ultra-abyssal oil-gas mining and production.
Background technology
Along with the continuous progress with engineering technology of becoming increasingly conspicuous of energy problem, field of petroleum exploitation is moved towards the shallow sea by land, and the step of going forward side by side is walked to deep-sea and ultra deep-sea.Jack-up platform, semisubmersible platform, tension leg platform, are offshore oil production equipment at present commonly used at the Spar platform.
Jack-up platform spud leg liftable, convenient displacement, but along with the depth of water increases, the spud leg cost increases sharply, and is inappropriate for the deep-sea and recovers the oil.
The semisubmersible platform floor space is big, and carrying capacity is big, and wind loading rating is strong, and the construction difficulty is low; It is good to move performance in place once more, but because its drinking water is more shallow, severe sea condition sagging swing move excessive; Can't adopt and do the tree oil recovery, therefore be used for the deep-sea oil gas probing more, can't be used for production of hydrocarbons.
Tension leg platform adopts the tension leg system that platform and seafloor foundation are fixed together, and makes platform motion very little, is similar to rigidity.But along with the depth of water increases, the platform cost increases sharply, and possibly occur the deadweight of tension leg system excessive with problem such as Base Design installation difficulty increase, be not suitable for the deep-sea oil gas exploitation and produce.
Spar platform center of gravity is under the centre of buoyancy, and exercise performance is good, can use rigid riser and do the tree oil recovery, reduces production costs.Existing Spar platform mainly contains three kinds of versions: first generation tradition Spar platform, second generation truss-like Spar platform and third generation polystyle Spar platform; Wherein, Traditional type and the hard cabin of truss-like main body part are large-diameter deep drinking water cylinder, and it is all very high to build difficulty and cost, and polystyle spar adopts some small-sized cylinders to bundle the cylinder with large diameter before replacing; Reduced the construction difficulty, but capacity weight is restricted.On the whole, it is bigger that the Spar platform exist to be built difficulty, poor mobility, shortcoming such as marine hoisting platform upper body cost is high, and floor space is less.And find that after deliberation existing Spar platform pattern is because when meeting with macrocyclic surging, there are the possibility that non-linear coupling unsteady motion takes place in its motion natural period and profile influence.
Summary of the invention
The utility model is directed against the proposition of above problem, and develops a kind of many columns truss-like platform.The technological means that the utility model adopts is following:
A kind of many columns truss-like platform; Comprise platform upper, hard cabin, sectional type center well column, truss-like stage casing, hang down and swing plate, soft cabin, mooring system and riser systems; It is characterized in that: said hard cabin is made up of four cylinders; Upper end, said hard cabin is fixedly linked with said platform upper, and lower end, said hard cabin is provided with fairlead; Upper end, cooresponding with it together said truss-like stage casing, lower end, said hard cabin captive joint, captive joint with said soft cabin in lower end, said truss-like stage casing; Said sectional type center well column places the center by said hard cabin; Said sectional type center well column is two sections closed center well columns; The epimere diameter of said sectional type center well column is less than the hypomere of said sectional type center well column; The epimere strut length of said sectional type center well column and the equal in length in said hard cabin, the following segment length of said sectional type center well column equal the length in said truss-like stage casing and the height sum in said soft cabin; Said mooring system is captiveed joint with the fairlead of lower end, said hard cabin.
As preferably, when platform moved boat, four cylinders in said hard cabin can be promoted on the deck of said platform upper by lifting mechanism, and the hypomere center well column of said sectional type center well column can overlap and rise to fragment position.
As preferably, saidly hang down that to swing plate be four, be shaped as squarely, the length of side equates with four quadrangle length of sides that cylinder surrounded in said hard cabin; Said hang down swung plate and in vertical direction said truss-like stage casing is equally divided into four parts; The said vertical plate middle part of swinging is provided with the through hole that said sectional type center well column is passed.
As preferably, said soft cabin is cube structure and be provided with permanent ballast tank and ballast chamber in the form of a ring.
As preferably, said mooring system is divided into four groups, is made up of three mooring lines for every group, adopts half slack-free catenary mooring, and promptly every mooring line all is anchor chain-wirerope-anchor chain form; Angle between the two adjacent groups mooring line is 90 °, and the angle in same group between adjacent two mooring lines is 5 °.
As preferably, said riser systems adopts the top tensioned risers, and the top tension force of each standpipe is provided by the buoyancy tank that carries.
The beneficial effect of the utility model is:
1, ballast is mainly provided by soft cabin, platform bottom, guarantees that center of gravity is under the centre of buoyancy.Make platform have enough stability and good exercise performance, can support to do tree and recover the oil, cost reduces.
2, distributed column structure guarantees enough big floor space, thereby has big delelivered payload capability.
3, hard cabin cylinder liftable can be regulated the platform drinking water with the depth of water and sea situation, simultaneously, can carry out short range from boat, also need not marine upright process and marinely lift superstructure, reduced transportation and cost of installation.
4, four hard cabin cylinder sizes are less relatively, reduced the construction difficulty, can divide ground to build simultaneously, shortened the construction time.
5, adopt whole the hanging down of large tracts of land to swing plate, increased platform added mass and damping, making hangs down swings performance and further promotes.
6, the center well cylinder can protect standpipe to avoid the ocean current wave so that the influence of interior ripple.
7, suitable marine site is extensive, except that deep ocean work, also can be used for the exploitation of shallow sea or marginal oil field.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the 1-1 section-drawing of the utility model structural representation.
Fig. 3 is the 2-2 section-drawing of the utility model structural representation.
Fig. 4 is the soft cabin scheme drawing of the utility model.
Fig. 5 is the boat certainly or the towage scheme drawing of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is carried out detailed description.
As shown in Figure 1, a kind of many columns truss-like platform comprises platform upper 1, hard cabin 2, sectional type center well column 3, truss-like stage casing 4, hangs down and swing plate 5, soft cabin 6, mooring system 7 and riser systems 8.Described platform upper 1 is the rectangular box that is surrounded by watertight bulkhead, guarantees that platform upper can provide buoyancy when towage; Be provided with three layers of deck altogether, be furnished with drill outfit, crew quarters territory, helicopter platform etc. on the uppermost deck.Said hard cabin 2 is made up of four small diameter cylinders, is quadrangle and distributes, and cylinder is positioned at tetragonal angle point place; The said hard cabin 2 inner waterproof boards that adopt are separated into a plurality of cuddies, are full of air, mainly the buoyancy when the platform operation to be provided.2 upper ends, said hard cabin and said platform upper 1 are fixedly linked, and 2 lower ends, said hard cabin are provided with fairlead; Cooresponding with it together said truss-like stage casing, 2 lower ends, said hard cabin 4 upper end captive joints.Said sectional type center well column 3 places the center (as shown in Figure 2) by said hard cabin 2; Riser systems 8 is passed from sectional type center well column; Effectively protection riser systems 8 does not receive the influence of wave flow, the diameter of center well column 3 can according to holding standpipe number and arrangement form needs definite; Said sectional type center well column 3 is two sections closed center well columns; The epimere diameter of said sectional type center well column 3 is less than the hypomere of said sectional type center well column 3; The epimere strut length of said sectional type center well column 3 and the equal in length in said hard cabin 2, the following segment length of said sectional type center well column 3 equal the length in said truss-like stage casing 4 and the height sum in said soft cabin 6; When platform moved boat, four cylinders in said hard cabin 2 can be promoted on the deck of said platform upper 1 by lifting mechanism, and the hypomere center well column of said sectional type center well column 3 can overlap and rise to fragment position (as shown in Figure 5).When shallow water, center well can remove, and whole flat is used as jack-up platform.Said truss-like stage casing 4 is made up of the upright leg of no introversion, triatic stay, brace; Saidly hang down that to swing plate 5 be four; In vertical direction truss-like stage casing 4 is equally divided into four parts; Hang down and swing plate 5 for square; The length of side equates with four quadrangle length of sides that cylinder surrounded in said hard cabin 2, hangs down to swinging plate 5 middle parts and be provided with the through hole (as shown in Figure 3) that said sectional type center well column 3 is passed.Hang down and to swing plate the center well column is played reinforcement effect, taking place to hang down at platform can provide bigger added mass and damping when swinging motion, and significantly improving hangs down swings exercise performance, is convenient to drilling well, does the carrying out that tree is recovered the oil.Captive joint with said soft cabin 6 in 4 lower ends, said truss-like stage casing; Said soft cabin 6 (as shown in Figure 4) is positioned at the upper/lower positions place of flat-bed; Be the hollow cube structure, have strut to link to each other respectively, play reinforcement effect center well with the center well bottom at four angle points of hollow; Inside, soft cabin is provided with permanent ballast tank and ballast chamber, and center of gravity is dropped under the centre of buoyancy, improves the platform stability.Said mooring system 7 is divided into four groups, is made up of three mooring lines for every group, adopts half slack-free catenary mooring, and promptly every mooring line all is anchor chain-wirerope-anchor chain form; Angle between the two adjacent groups mooring line is 90 °, and the angle in same group between adjacent two mooring lines is 5 °, and the fairlead height is consistent with the platform center of gravity.Mooring line can limit the motion of platform in horizontal surface, and company's cable of employing links structure and reduces manufacturing cost.The utility model occupies huge hydrospace, can on the hard cabin 2 at height of gravitational center place, be uniformly distributed with dynamic positioning system (DPS) according to actual conditions, moves with convenient in order to assist location.Said mooring system 7 is captiveed joint with the fairlead of 2 lower ends, said hard cabin.Said riser systems 8 employing top tension types recover the oil so that realize doing tree.Standpipe is distributed in the center well column 3, has buoyancy tank to be attached thereto in riser top, guarantees the tension requirements of standpipe.
The above; Be merely the preferable specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technical personnel of being familiar with the present technique field is equal to replacement or changes according to the technical scheme of the utility model and inventive concept thereof in the technical scope that the utility model discloses, and all should be encompassed within the protection domain of the utility model.
Claims (6)
1. the platform of column truss-like more than a kind; Comprise platform upper (1), hard cabin (2), sectional type center well column (3), truss-like stage casing (4), vertical plate (5), soft cabin (6), mooring system (7) and the riser systems (8) of swinging; It is characterized in that: said hard cabin (2) is made up of four cylinders; Upper end, said hard cabin (2) is fixedly linked with said platform upper (1), and lower end, said hard cabin (2) is provided with fairlead; Upper end, same cooresponding said truss-like stage casing (4) with it, lower end, said hard cabin (2) captive joint, captive joint with said soft cabin (6) in lower end, said truss-like stage casing (4); Said sectional type center well column (3) places the center by said hard cabin (2); Said sectional type center well column (3) is two sections closed center well columns; The epimere diameter of said sectional type center well column (3) is less than the hypomere of said sectional type center well column (3); The equal in length in the epimere strut length of said sectional type center well column (3) and said hard cabin (2), the following segment length of said sectional type center well column (3) equal the length in said truss-like stage casing (4) and the height sum in said soft cabin (6); Said mooring system (7) is captiveed joint with the fairlead of lower end, said hard cabin (2).
2. a kind of many columns truss-like platform according to claim 1; It is characterized in that: when platform moves boat; Four cylinders in said hard cabin (2) can be promoted on the deck of said platform upper (1) by lifting mechanism, and the hypomere center well column of said sectional type center well column (3) can overlap and rise to fragment position.
3. a kind of many columns truss-like platform according to claim 1 is characterized in that: saidly hang down that to swing plate (5) be four, be shaped as squarely, the length of side equates with four quadrangle length of sides that cylinder surrounded in said hard cabin (2); Said hang down swung plate (5) and in vertical direction said truss-like stage casing (4) is equally divided into four parts; Said vertical plate (5) middle part of swinging is provided with the through hole that said sectional type center well column (3) is passed.
4. a kind of many columns truss-like platform according to claim 1 is characterized in that: said soft cabin (6) is cube structure and be provided with permanent ballast tank and ballast chamber in the form of a ring.
5. a kind of many columns truss-like platform according to claim 1; It is characterized in that: said mooring system (7) is divided into four groups; Be made up of three mooring lines for every group, adopt half slack-free catenary mooring, promptly every mooring line all is anchor chain-wirerope-anchor chain form; Angle between the two adjacent groups mooring line is 90 °, and the angle in same group between adjacent two mooring lines is 5 °.
6. a kind of many columns truss-like platform according to claim 1 is characterized in that: said riser systems (8) adopts the top tensioned risers, and the top tension force of each standpipe is provided by the buoyancy tank that carries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120557287XU CN202414124U (en) | 2011-12-27 | 2011-12-27 | Multi-vertical-column truss type platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120557287XU CN202414124U (en) | 2011-12-27 | 2011-12-27 | Multi-vertical-column truss type platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202414124U true CN202414124U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120557287XU Withdrawn - After Issue CN202414124U (en) | 2011-12-27 | 2011-12-27 | Multi-vertical-column truss type platform |
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| CN (1) | CN202414124U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501949A (en) * | 2011-12-27 | 2012-06-20 | 大连理工大学 | Truss type platform with multiple upright columns |
| CN105083485A (en) * | 2015-06-08 | 2015-11-25 | 上海海洋大学 | Inclined upright truss type semi-submersible oil production platform |
| CN106741699A (en) * | 2017-01-16 | 2017-05-31 | 天津大学 | A kind of cylinders integrated-type open side type platform |
| CN107499468A (en) * | 2017-09-06 | 2017-12-22 | 大连理工大学 | A kind of single column platform |
-
2011
- 2011-12-27 CN CN201120557287XU patent/CN202414124U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501949A (en) * | 2011-12-27 | 2012-06-20 | 大连理工大学 | Truss type platform with multiple upright columns |
| CN102501949B (en) * | 2011-12-27 | 2014-10-29 | 大连理工大学 | Truss type platform with multiple upright columns |
| CN105083485A (en) * | 2015-06-08 | 2015-11-25 | 上海海洋大学 | Inclined upright truss type semi-submersible oil production platform |
| CN106741699A (en) * | 2017-01-16 | 2017-05-31 | 天津大学 | A kind of cylinders integrated-type open side type platform |
| CN107499468A (en) * | 2017-09-06 | 2017-12-22 | 大连理工大学 | A kind of single column platform |
| CN107499468B (en) * | 2017-09-06 | 2024-02-06 | 大连理工大学 | Single column type platform |
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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: 20120905 Effective date of abandoning: 20141029 |
|
| RGAV | Abandon patent right to avoid regrant |