CN105752285B - A kind of rigid steel pipes tension tendon alignment system for many floating drums of connecting - Google Patents
A kind of rigid steel pipes tension tendon alignment system for many floating drums of connecting Download PDFInfo
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- CN105752285B CN105752285B CN201610078540.0A CN201610078540A CN105752285B CN 105752285 B CN105752285 B CN 105752285B CN 201610078540 A CN201610078540 A CN 201610078540A CN 105752285 B CN105752285 B CN 105752285B
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- floating drum
- tension
- tension tendon
- tendon
- platform
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- 210000002435 tendon Anatomy 0.000 title claims abstract description 61
- 238000007667 floating Methods 0.000 title claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 26
- 239000010959 steel Substances 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 239000003643 water by type Substances 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
- Revetment (AREA)
Abstract
The present invention relates to a kind of many floating drum rigid steel pipes tension tendon alignment systems of the series connection of the new tension leg platform (TLP) for ultra-deep-water operation.It is characterized in that：It is included in run through in floating drum, same depth of water position differential tension tendon in the rigid tension tendon in different water depth position and is connected between floating drum using stull；Tension tendon top is fastenedly connected upper platform.The floating drum shape is welded using the good hollow closed annular cylindrical structure of hydrodynamic performance using quality steel plate, and is provided with switchable valve for adjusting single float displacement size outside floating drum.The present invention avoids the multigroup floating drum of Wave energy concentrated area series connection in rigid tension tendon, therefore can be effectively improved the exercise performance of conventional tension leg platform, reduces swinging in length and breadth and heaving response amplitude for platform；The vortex-induced vibration of tension tendon can be suppressed simultaneously so that platform can work under deeper exploration exploitation waters and more severe sea condition.
Description
Technical field
The invention belongs to engineering equipment for deep ocean exploitation manufacture field, it is related to a kind of the firm of many floating drums of tension leg platform (TLP) (TLP) series connection
Property steel pipe tension tendon alignment system and its installation method.
Background technology
With being continuously increased for global energy requirements amount, increasing deep water and ultra-deep-water petroleum resources are constantly surveyed
Visit and develop, the drilling-production equipment of use is mainly different types of floating platform, wherein with tension leg platform (TLP), semisubmersible platform,
These four are the most commonly used for floating production storage unit and pillar platform.Tension leg platform (TLP) is by deck, column, lower floating body, tension leg, vertical
A few part compositions such as pipe and basis, are a kind of semifixed half compliant types being widely used in world's deep-sea oil gas engineering
Platform.It is connected by parallel and tensioning vertical tension leg system with seabed, it is ensured that platform shakes and heaving direction longitudinal and transverse
On superperformance.And platform it is longitudinal and transverse swing and it is first shake the feature then on direction with compliant platform, with very big inertia force
To balance external load, with less motor imagination.The current in-service tension leg platform (TLP) depth of water in place is mostly within 1000 meters,
When the platform depth of water in place is deeper, environmental condition is more severe, platform is longitudinal and transverse to be swung and the motion in heaving direction is difficult to meet life again
The requirement of production, which greatly limits tension leg platform (TLP) deeper marine site application.
Tendon system is most important minor structure in tension leg platform (TLP), and its effect is to provide semi-rigid for main platform body
Compliant type constraint, and the load that most platform is integrally born at last be transferred to submarine anchoring basis.Meanwhile, tension tendon be also
Most easily occur damage and abnormal minor structure, fatigue, overload, kuppe rupture, corrosion, stress in tension leg platform (TLP) production process
The reason such as relaxation and anchor head damage will all cause damage or the exception of tendon system.In addition, continuous with operating depth
Increase, damage caused by above-mentioned reason can be accumulated constantly, and be possible to cause platform safety irreversible destruction, so as to draw
Send out catastrophic failure.
The tendon system of existing tension leg platform (TLP) mainly has the rigid steel pipes tension force according to neutral buoyancy Theoretical Design
Tendon and many two kinds of float-type flexible wirerope tension tendons, there is the unfavorable phenomenons such as offset is excessive in ultra-deep waters in them,
So that its depth of water in place need to be typically controlled below 1000 meters；How to tackle the demand in deeper marine site, design it is more safe and reliable,
The constraint alignment system of economical rationality is that tension leg platform (TLP) moves towards the subject matter that ultra-deep-water exploration and development runs into.
The content of the invention
The present invention for tension leg platform (TLP) above mentioned problem there is provided a kind of hydrodynamic performance it is good, be suitable for ultra-deep-water
The rigid steel pipes tension tendon alignment system of many floating drums of the series connection in domain and severe sea condition condition.
To achieve these goals, the present invention takes following technical scheme：
A kind of rigid steel pipes tension tendon alignment system for many floating drums of connecting, the system includes main platform body, is connected on just
Multigroup floating drum and stull in property steel pipe tension tendon.Four corner points arrange multiple fastening pivoting supports on main platform body outer wall
It is hinged with tension tendon upper end, floating drum can be discharged under action of ocean current to the curved of tension tendon end generation using articulated manner
Transverse stress.Floating drum side wall circumferential edge prepared screw-bolt hole and the anchor connection of stull one end, same depth of water position differential tension tendon
Connected between upper adjacent floating drum by stull.Floating drum is adopted using the good hollow closed annular cylindrical structure of hydrodynamic performance
It is welded with quality steel plate；The top and bottom of each floating drum are provided with inlet and outlet control valve door, the draining for adjusting floating drum
Amount；Floating drum upper and lower surface center sets buckling and locking device, the relative position for fixing tension tendon and floating drum.Single rigid
Power tendon runs through along the floating drum axis, and tension tendon main body is the rigid steel in the multigroup floating drum of different water depth position series connection
Pipe, wherein steel pipe are designed by neutral buoyancy, and every group of tension tendon runs through corresponding multigroup floating drum, and tension tendon upper end passes through tensioning
Device is connected with main platform body lower end, and lower end is connected with seafloor foundation；Every group of tension tendon can be single steel pipe or many
Root steel pipe.
Beneficial effects of the present invention are：1) series connection of Wave energy concentrated area is avoided in rigid tension tendon multigroup floating
Cylinder, can be effectively improved the exercise performance of conventional tension leg platform, reduce swinging in length and breadth and heaving response amplitude for platform so that platform
It can be worked under deeper exploration exploitation waters and more severe sea condition；2) due to the letter of the element structures such as its floating drum, attachment means
It is single, while can be dismantled and be reused as needed, preferably control the construction cost of tension tendon structure；3) consider
To the connectivity problem of tension tendon and floating drum upper and lower surface, floating drum preferably uses hollow closed circular cylinder；Compared to directly use
Hollow cylinder welded or bolted in junction (junction may due to fatigue effect is damaged and leak) have peace
The advantages of dress is convenient, airtight waterproof is good；4) layered arrangement floating drum can improve the reply rigidity of tension tendon alignment system, simultaneously
Reduce the vortex-induced vibration problem of tension tendon.
Brief description of the drawings
Fig. 1 is the rigid steel pipes tension tendon alignment system schematic diagram of many floating drums of series connection of the present invention；
The floating drum that Fig. 2 is the present invention is connected schematic side view with tension tendon, stull；
The floating drum that Fig. 3 is the present invention is connected schematic top plan view with tension tendon, stull；
In figure：1 main platform body；2 rigid steel pipes tension tendons；3 floating drums；4 stulls；5 seafloor foundations；Inlet and outlet control valve door
6。
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, 2, the present invention is included under the multigroup floating drum being connected in rigid steel pipes tension tendon 2, the same depth of water
Adjacent floating drum between with stull 4 be connected；Floating drum 3 use circular cylinder structure, at the top of it and bottom provided with turnover water control
Valve 6 processed, the displacement for adjusting floating drum.
Four multiple fastening pivoting supports of corner point arrangement are hinged with tension tendon upper end on the outer wall of main platform body 1, are used
Articulated manner can discharge the bending stress that floating drum is produced under action of ocean current to tension tendon end.
Every group of tension tendon 2 runs through corresponding multigroup floating drum 3, and tension tendon upper end passes through under stretcher and main platform body 1
End connection, the lower end of tension tendon 2 is connected with seafloor foundation 5.
As shown in figure 3, in stull relative to floating drum axis of symmetry distal end, reserving opening slot position, being easy to stull and Inlet and outlet water
The thin portion such as valve Member Welding, installation.
Connect many floating drums rigid steel pipes tension tendon alignment system specific installation steps it is as follows：
Step 1. is provided with an installation ship, the installation ship across the sea is stacked with the reserved steel pipe tension tendon of segmentation
2；
Step 2. when the fitting depth of tension tendon 2 reaches specify and require when install and be cased with the tension tendon section of floating drum, floating
3 upper and lower surfaces of cylinder set anchor to be used to constrain the position of floating drum 3 with the junction of tension tendon 2；Every group of tension tendon 2 can be
Single steel pipe or many steel pipes；
Step 3. proceeds the installment work of remaining tension tendon section；After the installment work for completing whole piece tension tendon 2,
Floating block and separation lock are installed at its water surface, the installation of other tension tendons is waited；
Main platform body 1 is pulled to specified location, removed one by one floating after all tension tendons 2 are installed by step 4.
Block, the upper end of tension tendon 2 is hinged with buoyancy tank lower end, and tension tendon 2 is gradually tightened up by stretcher, platform 1 is sunk down into institute
The operating depth needed.
Above-mentioned every embodiment is only used for the structure type of the present invention, wherein rigid steel pipes series connection floating drum, series connection floating drum
Group number etc. can be all varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement,
It should not exclude outside protection scope of the present invention.
Claims (1)
1. a kind of rigid steel pipes tension tendon alignment system for many floating drums of connecting, it is characterised in that including main platform body (1), string
The multigroup floating drum (3) being associated in rigid steel pipes tension tendon (2) and stull (4)；Rigid tension tendon in different water depth position
(2) series connection runs through floating drum (3) on, and floating drum (3) is hollow closed annular cylindrical structure, is welded using quality steel plate, is floated
Cylinder (3) upper and lower surface center sets buckling and locking device, and floating drum (3) is fixed in tension tendon (2), and floating drum (3) is provided with turnover
Water control valve (6), adjusts floating drum (3) displacement；On same depth of water position differential tension tendon (2) between adjacent floating drum (3)
Connected by stull (4)；Tension tendon (2) is rigid steel pipes, and its upper end is connected with main platform body (1) lower end, lower end and seabed
Basic (5) are connected, and single rigid tension tendon (2) runs through along the floating drum (3) axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078540.0A CN105752285B (en) | 2016-02-03 | 2016-02-03 | A kind of rigid steel pipes tension tendon alignment system for many floating drums of connecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078540.0A CN105752285B (en) | 2016-02-03 | 2016-02-03 | A kind of rigid steel pipes tension tendon alignment system for many floating drums of connecting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105752285A CN105752285A (en) | 2016-07-13 |
| CN105752285B true CN105752285B (en) | 2017-08-22 |
Family
ID=56330528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610078540.0A Expired - Fee Related CN105752285B (en) | 2016-02-03 | 2016-02-03 | A kind of rigid steel pipes tension tendon alignment system for many floating drums of connecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105752285B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926988A (en) * | 2017-02-27 | 2017-07-07 | 中国海洋石油总公司 | The interim buoyant device of tension leg platform (TLP) tendon |
| 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 |
| CN107813909A (en) * | 2017-10-13 | 2018-03-20 | 大连理工大学 | A kind of tension tendon alignment system for Hollow Microspheres Reinforced Composite Materials floating drum of connecting |
| CN111877411B (en) * | 2020-08-10 | 2024-06-14 | 大连理工大学 | CC3/3 type auxiliary anti-floating device for underground space bearing column |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2799519Y (en) * | 2003-05-28 | 2006-07-26 | 天津市海恩海洋工程技术服务有限公司 | Light tension leg self-installing type single point mooring equipment |
| CN2900351Y (en) * | 2006-05-17 | 2007-05-16 | 中国海洋石油总公司 | Float position tieing at shallow sea water |
| CN103419904A (en) * | 2013-08-19 | 2013-12-04 | 上海利策海洋工程技术有限公司 | Floater type tension tendon and installation way |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8430602B2 (en) * | 2010-01-06 | 2013-04-30 | Technip France | System for increased floatation and stability on tension leg platform by extended buoyant pontoons |
-
2016
- 2016-02-03 CN CN201610078540.0A patent/CN105752285B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2799519Y (en) * | 2003-05-28 | 2006-07-26 | 天津市海恩海洋工程技术服务有限公司 | Light tension leg self-installing type single point mooring equipment |
| CN2900351Y (en) * | 2006-05-17 | 2007-05-16 | 中国海洋石油总公司 | Float position tieing at shallow sea water |
| CN103419904A (en) * | 2013-08-19 | 2013-12-04 | 上海利策海洋工程技术有限公司 | Floater type tension tendon and installation way |
Non-Patent Citations (1)
| Title |
|---|
| 通过附加浮筒改良的张力腿平台多体耦合运动响应;闫功伟，欧进萍;《振动与冲击》;20120528;第31卷(第10期);29-35 * |
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| Publication number | Publication date |
|---|---|
| CN105752285A (en) | 2016-07-13 |
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Granted publication date: 20170822 Termination date: 20200203 |