CN103738478B - Deepwater column exportation buoy - Google Patents
Deepwater column exportation buoy Download PDFInfo
- Publication number
- CN103738478B CN103738478B CN201410036825.9A CN201410036825A CN103738478B CN 103738478 B CN103738478 B CN 103738478B CN 201410036825 A CN201410036825 A CN 201410036825A CN 103738478 B CN103738478 B CN 103738478B
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- Prior art keywords
- column
- float body
- turntable
- defeated
- floating drum
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Abstract
A kind of Deepwater column exportation buoy, including：One float body, the turntable being located on float body, the turntable is connected by swivel bearing with float body, the float body is deep draft column formula structure, the bottom of column float body is provided with a permanent ballast tank, top is provided with ballast tank at Water Plane；Meanwhile, the free period of the rolling of the column float body, pitching and heave movement is more than 20 seconds, with away from the main energy range of wave.The present invention is applied widely, can not only be served in the marine site of harsh environmental conditions, can also be served in the excellent marine site of condition；Moreover, greatly improving the exercise performance of outer defeated floating drum, the long-range outer defeated operation under deep water sea area severe sea condition is realized；Meanwhile, it is greatly lowered the design difficulty of outer petroleum pipeline and mooring system, it is possible to save outer defeated and mooring system cost.
Description
Technical field
The present invention relates to crude oil exporting device, more particularly to a kind of floating platform crude oil being applied under deep water adverse circumstances
Outer defeated Deepwater column exportation buoy.Belong to ocean engineering field.
Background technology
Crude oil exporting is an important component of offshore oil field development, directly influences the economy of whole oil field development
Benefit.So far, the outer defeated pattern for Crude Oil at Sea has two kinds of forms, and one is：It is defeated outside submarine pipeline；Two are：Wear at sea
It is defeated outside shuttle oil tanker.
Although it will not be influenceed to make oil field stop production by environmental weather conditions using output oil outside submerged pipeline, and pipeline
Operation management expense is relatively low, but the investment cost that submerged pipeline is built is at a relatively high, with larger investment risk, once spread
If, it is necessary to there is sufficiently high crude output to reclaim the huge investment of submerged pipeline.Such as：U.S. Mexico gulf, Submarine Pipeline
Road system is highly developed and intensive, therefore, and crude oil exporting relies primarily on submarine pipeline system.
And for other deep water sea areas in the world, such as：Marginal basins, West Africa marine site, Brazil, Southeast Asia etc., due to seabed
Pipe-line system is less-developed, defeated system outside marine shuttle tanker, is still the major way of current offshore oilfield crude oil exporting.
Defeated system is generally comprised outside marine shuttle tanker：Floating type oil storage platform, mooring facilities and shuttle tanker.Utilize shuttle
The most distinguishing feature that oil tanker carries out crude oil exporting is small investment, and facility is reusable, can be used in multiple offshore oilfields and opens
The crude oil exporting task of hair, it is easy to use, investment risk will not be produced because of the small limitation of oilfield reserve.Typically can be according to oil field
Yield, the ability of oil storage facility and oil field offshore distance, selection one or several shuttle tankers transport oil.
It is different according to berthing mode, it is divided into using defeated outside shuttle tanker progress：String reclining；Other reclining；Long-range outer defeated formula.
Wherein, defeated outside string reclining and other reclining, it is offshore oilfield Floating Production oil storage system (FPS0) typically to require floating type oil storage platform,
And the general ship form design or single point mooring system having as shuttle tanker.
As shown in Fig. 2 at present, the existing outer defeated floating drum of tradition is shallow draft list barrel shape structure, generally by barrel shape structure master
Body 201 and the turntable 202 being located on barrel shape main structure body 201 are constituted, wherein, turntable 202 passes through rotation with barrel shape main structure body 101
Connection is held in rotating shaft, to realize the relative rotation between turntable 202 and barrel shape main structure body 101；Barrel shape diameter of movement is general 20
Rice or so, drinking water is general at 10 meters or so.
The existing outer defeated floating drum of tradition has simple in construction, and materials compare province, transport and install relatively inexpensive advantage.But
It is very good that it is only applicable to the environmental conditions such as West Africa, the less region of wave；Therefore, such a outer defeated floating drum is in West Africa marine site
It is widely used.It has the disadvantage, due to outer defeated floating drum motion free period (in design, be mainly in view of rolling,
Pitching and heave) it is general at 10 seconds or so, close to the main energy range of wave, so, its exercise performance is excessively poor, externally defeated
The design requirement of oil pipe and anchor system is very high, it is impossible to applied to environmental condition rather harsh, the larger marine site of wave, such as：Nan Zhong
State sea, the North Sea, the other marine sites of Brazil and the world.
The content of the invention
It is a primary object of the present invention to overcome the disadvantages mentioned above that prior art is present, and provide outside a kind of deep water column
Defeated floating drum, its is applied widely, can not only be served in the marine site of harsh environmental conditions, can also be served in the excellent sea of condition
Domain；Moreover, greatly improving the exercise performance of outer defeated floating drum, the long-range outer defeated behaviour under deep water sea area severe sea condition is realized
Make；Meanwhile, be greatly lowered the design difficulty of outer petroleum pipeline and mooring system, it is possible to save it is outer it is defeated and mooring system into
This.
The purpose of the present invention is realized by following technical scheme：
A kind of Deepwater column exportation buoy, including：One float body, it is characterised in that：Also include：It is located at float body
On turntable, the turntable is connected by swivel bearing with float body, and the float body is deep draft column formula structure, in column
The bottom of formula float body is provided with a permanent ballast tank, and top is provided with ballast tank at Water Plane；Meanwhile, the column
The free period of the rolling of formula float body, pitching and heave movement is more than 20 seconds, with away from the main energy range of wave.
The calculation formula of the free period of column float body motion is：In formula, M is：It is floating
The quality and additional mass sum of body；K is：The stiffness coefficient of the freedom of motion.
The middle part of the column float body, outer petroleum pipeline junction have been disposed about outer oil transportation tube connector basis knot
Structure, outer defeated ground cable foundation structure；Meanwhile, the near middle of column float body there also is provided anchor chain.
The turntable is connected as a single entity with cable arm, and cable arm is connected by turntable with outer defeated floating drum, and outer defeated floating drum is by being
Cable is connected with shuttle tanker.
The cable arm is in extension structure, i.e.,：Cable arm extends outward and down a setpoint distance, forms cable arm
One inverted "L" shaped, to reduce the shuttle tanker tilting moment that externally defeated floating drum is produced.
At deck at the top of the turntable, top attachment structure is provided with, top attachment structure is slab and girder.
The column float body is connected and composed by several deep elongated legs that absorb water, the cylinder of column float body
Centre, middle part anchor chain and outer petroleum pipeline junction, be provided with middle portion connecting structure, portion connecting structure is in this：Truss structure
Or slab and girder, cylinder and support anchor chain and outer petroleum pipeline to connect column float body.
The permanent ballast tank is connected between the cylinder of column float body, and permanent ballast tank is tied for closed in space
Structure.
Beneficial effects of the present invention：The present invention is due to using above-mentioned technical proposal, and its is applied widely, can not only be on active service
In the marine site of harsh environmental conditions, the excellent marine site of condition can be also served in；Moreover, greatly improving the fortune of outer defeated floating drum
Dynamic performance, realizes the long-range outer defeated operation under deep water sea area severe sea condition；Meanwhile, make setting for the sharp mooring system of outer petroleum pipeline
Meter difficulty is greatly lowered, it is possible to save outer defeated and mooring system cost.
Brief description of the drawings：
Fig. 1 is defeated layout drawing outside offshore oilfield distance type of the present invention.
Fig. 2 is defeated floating drum dimensional structure diagram outside existing traditional deep water.
Fig. 3 A are defeated floating drum perspective view outside column deep water of the present invention.
Fig. 3 B are defeated floating drum side view outside column deep water of the present invention.
Major Symbol explanation in figure：
101. Floating Storage ship, 102. anchoring systems, 103. outer petroleum pipelines, defeated floating drum outside 104., 105. anchoring systems,
106. flotation hose, 107. heaving piles, 108. shuttle tankers, 201. barrel shape main structure bodies, 202. turntables, 300. Water Planes, 301.
Column float body, 302. turntables, 303. ballast tanks, 304. buoyancy compartments, 305. permanent ballast tanks, 306. cable arms,
Defeated ground cable basis is tied outside for 307. outer petroleum pipeline pipe arrangements, 308. outer oil transportation tube connector foundation structures, 309. anchor chains, 310.
Portion connecting structure, 313. floor structures in structure, 311. top attachment structures, 312..
Embodiment
As shown in figure 1, the typical long-range outer defeated system of deepwater includes：It is separately fixed at the anchoring system in seabed
(102,105), the outer petroleum pipeline 103 being suspended in water, the outer defeated floating drum 104 for being fixed on seabed and by heaving pile 107 with it is outer defeated
The connected flotation hose 106 of floating drum 104, wherein, anchoring system 102 is connected with Floating Storage ship 101, makes Floating Storage ship 101
Stabilization is at sea；Another anchoring system 105 for being fixed on seabed is connected with outer defeated floating drum 104, makes outer defeated floating drum 104 stable in sea
On；The one end for the outer petroleum pipeline 103 being suspended in water is connected with Floating Storage ship 101, and the other end is connected with outer defeated floating drum 104；
Shuttle tanker 108 is connected on defeated floating drum 104 outside by heaving pile, and shuttle tanker 108 shares a set of mooring system with outer defeated floating drum 104
System 105.The crude oil handled well is delivered to outer defeated floating drum 104 from Floating Storage wheel 101 by outer petroleum pipeline 103, then from outer defeated floating
Cylinder 104 is delivered to shuttle tanker 108 by flotation hose 106, finally, is transported by shuttle tanker 108 to land terminal, completes one
Secondary crude oil exporting operation.
It can be found that outer defeated floating drum 104 is most important among whole outer defeated system, it is necessary to ensure outer from outer defeated flow
The design safety of petroleum pipeline 103 and anchoring system (102,105), while being relied on, it is necessary to provide mooring to shuttle tanker 108.
Because the outer defeated size of floating drum 104 itself is smaller, its wave effect highly significant being subject to, the motion of outer defeated floating drum 104 is externally defeated
The ultimate strength and fatigue life requirements of oil pipe 103 and anchoring system (102,105) are very high.For the very good ripple of environmental condition
The less marine site of wave, though existing traditional outer defeated floating drum 104 can meet design use requirement, and for harsh environmental conditions wave
Larger marine site, then can not use existing traditional outer defeated floating drum 104.
As shown in Fig. 3 A, Fig. 3 B, the present invention includes：One column float body 301, it is located at column float body 301
On turntable 302, wherein, turntable 302 is connected by swivel bearing with column float body 301, with realize turntable 302 with it is vertical
Relative rotation between pillar float body 301；According to the long-time statistical feature of wave, Wave energy is typically only distributed in wave
Cycle is within the scope of 3-20 seconds, to only have small energy to exist for the interval that the cycle is more than 20 seconds.Therefore, it is of the invention vertical
Pillar float body 301 increases the free period of its motion, with away from the main energy range of wave.It is heaved, roll and pitch fortune
Dynamic free period is：More than 20 seconds.
According to the motion equation, the free period of some freedom of motion of floating body is：In formula, M
For：The quality and additional mass sum of floating body；K is：The stiffness coefficient of the freedom of motion.From formula, it can be seen that to increase
The period of motion of big floating body, only two selections, i.e.,：Increase floating body quality or reduce motion stiffness coefficient.For the present invention
Floating drum, it is main to consider heave, the motion of roll and pitch three degree of freedom.
For heave movement, M is：The quality and additional mass sum of floating drum, K is：Heave movement water elastic stiffness, specifically
Show as：Water plane area size.Increase mass M means increase steel weight, and cost increase, this way is refused to recommend.
Column float body 301 of the present invention is：Two (or many) drinking water elongated legs deeply connect and compose column body formula
Structure, can effectively reduce deep motion rigidity, and free period is moved in increase.Meanwhile, elongated rod structure is also effectively reduced
Wave action area near Water Plane, has got the effect for reducing wave force.
For rolling, pitching, M is：The rotary inertia of floating drum and additional mass sum.K is：Rolling, pitching recover
Torque, shows as the displacement product high with Transverse Metacenter height, Longitudinal Metacentre.
The present invention is deep drinking water formula structure, and buoyancy compartment 304 provides enough buoyancy for whole outer defeated floating drum, in float body
301 bottom is provided with a permanent ballast tank 305, is provided with the top of column float body 301 at Water Plane 300
At the position of centre of gravity of ballast tank 303, permanent ballast tank 305 and ballast tank 303 all away from column float body, so,
The rotary inertia of floating drum can farthest be increased.Meanwhile, on the premise of stability requirement is met, by adjusting permanent ballast tank
305 and the proportioning of ballast tank 303 to minimize, Transverse Metacenter is high, Longitudinal Metacentre is high.Finally so that column float body 301
Rolling, the free period of pitching are more than 20 seconds, reach the purpose away from the main energy range of wave.
The present invention absorbs water formula pole structure deeply due to using, also, in cylinder bottom setting permanent ballast tank 305, reduction
The position of centre of gravity of total.So that the center of gravity of total is less than centre of buoyancy, unconditional stability is reached.
Queen post structure is only a kind of way of realization therein, and other can also be used on the premise of retention property is consistent
Structure type, such as open side type or three pillar type.
Turntable 302 is integrated with cable arm 306, and cable arm 306 is connected by turntable 302 with outer defeated floating drum, outer defeated floating drum
It is connected by heaving pile with shuttle tanker.
Shuttle tanker in defeated operation process, is connected on the cable arm 306 of defeated floating drum outside, cable arm by heaving pile outside
306 be integral type structure with turntable 302, and shuttle tanker, will be as turntable 302 be around outer defeated when being acted on by environmental forces
Floating drum rotates to the minimum direction of suffered environmental forces, and forms vane effect.At the same time, shuttle tanker will external defeated floating drum
Produce a larger tilting moment.Cable arm 306 is designed to extension, i.e.,：Outward and down extension one is set cable arm 306
Set a distance, makes the formation of cable arm 306 one inverted "L" shaped, can effectively reduce the shuttle tanker power of toppling that externally defeated floating drum is produced
Square.
According to the motion feature of floating body, the influence that is caused to institute's attached article of roll and pitch motion, will with rotation
The distance at center increases and increased.Outer oil transportation tube connector foundation structure 308, outer defeated ground cable foundation structure 310 are arranged
Near pivot, i.e.,：Near the middle part of column float body, outer petroleum pipeline junction；It can effectively reduce outer
The caused active force of defeated floating drum motion.Meanwhile, the connection of anchor chain 309 is arranged near pivot, i.e.,：Column float body
Near middle；Reduce the horizontal anchor chain power tilting moment that externally defeated floating drum is produced.
According to the design function feature of outer defeated floating drum, at the deck at the top of turntable, and middle part anchor chain and outer petroleum pipeline connect
Place is met, main connection external applied load is assume responsibility for, in addition, by the larger gravity of generation and inertial load at the fixed ballast of bottom.
The design is provided with reinforcement attachment structure at three above-mentioned key positions.Wherein, it is provided with top at the deck at the top of turntable
Portion connecting structure 311, top attachment structure 311 is typical slab and girder, plays and is responsible for connection column float body 301
The effect of the cylinder of left and right two and support turntable 302, middle portion connecting structure 312 can be truss structure or slab and girder, play negative
The effect of two cylinders and support anchor chain and outer petroleum pipeline of duty connection column float body 301, outer petroleum pipeline pipe arrangement 307 is used for
Realize the connection between outer petroleum pipeline and flotation hose；Floor structure 313 is closed in space's structure, while also serving as fixing
A part for ballast tank 305 is connected between the cylinder of column float body 301.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent variations and the modification made according to the technical spirit of the present invention to above example, still falls within
In the range of technical solution of the present invention.
Claims (5)
1. a kind of Deepwater column exportation buoy, including：One float body, it is characterised in that：Also include：It is located on float body
Turntable, the turntable is connected by swivel bearing with float body, and the float body is deep draft column formula structure, in column
The bottom of float body is provided with a permanent ballast tank, and top is provided with ballast tank at Water Plane；Meanwhile, the column
The free period of the rolling of float body, pitching and heave movement is more than 20 seconds, with away from the main energy range of wave；The column
The middle part of float body, outer petroleum pipeline junction have been disposed about outer oil transportation tube connector foundation structure, outer defeated ground cable base
Plinth structure；Meanwhile, the near middle of column float body there also is provided anchor chain；The column float body is by several depths
Drinking water elongated legs are connected and composed, and centre, middle part anchor chain and the outer petroleum pipeline junction of the cylinder of column float body are set
There is middle portion connecting structure；The turntable is connected as a single entity with cable arm, and cable arm is connected by turntable with outer defeated floating drum, outer defeated floating drum
It is connected by heaving pile with shuttle tanker；The cable arm is in extension structure, i.e.,：Cable arm outward and down the setting of extension one away from
From making cable arm formation one inverted "L" shaped, to reduce the shuttle tanker tilting moment that externally defeated floating drum is produced.
2. Deepwater column exportation buoy according to claim 1, it is characterised in that：The column float body motion
The calculation formula of free period be：In formula, M is：The quality and additional mass sum of floating body；K is：Should
The stiffness coefficient of freedom of motion.
3. Deepwater column exportation buoy according to claim 1, it is characterised in that：At deck at the top of the turntable,
Top attachment structure is provided with, top attachment structure is slab and girder.
4. Deepwater column exportation buoy according to claim 1, it is characterised in that：The middle portion connecting structure is：Purlin
Frame structure or slab and girder, cylinder and support anchor chain and outer petroleum pipeline to connect column float body.
5. Deepwater column exportation buoy according to claim 1, it is characterised in that：The permanent ballast tank is connected to vertical
Between the cylinder of pillar float body, permanent ballast tank is closed in space's structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036825.9A CN103738478B (en) | 2014-01-26 | 2014-01-26 | Deepwater column exportation buoy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036825.9A CN103738478B (en) | 2014-01-26 | 2014-01-26 | Deepwater column exportation buoy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103738478A CN103738478A (en) | 2014-04-23 |
| CN103738478B true CN103738478B (en) | 2017-07-28 |
Family
ID=50495576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410036825.9A Expired - Fee Related CN103738478B (en) | 2014-01-26 | 2014-01-26 | Deepwater column exportation buoy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103738478B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833500B (en) * | 2015-05-07 | 2017-07-14 | 中国海洋石油总公司 | A kind of outer defeated floating drum damping characteristic development test device |
| CN109501968A (en) * | 2018-12-07 | 2019-03-22 | 大连船舶重工集团有限公司 | A kind of sea multipoint mooring emptying is transferred system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO176011C (en) * | 1992-04-30 | 1998-01-21 | Norske Stats Oljeselskap | Load / losseböye |
| NO951977L (en) * | 1995-05-18 | 1996-11-19 | Statoil As | Method of loading and processing of hydrocarbons |
| NO20011524L (en) * | 2001-03-23 | 2002-09-24 | Leif Hoeegh & Co Asa | Vessels and unloading system |
| US6763862B2 (en) * | 2001-11-06 | 2004-07-20 | Fmc Technologies, Inc. | Submerged flowline termination at a single point mooring buoy |
| FR2928898B1 (en) * | 2008-03-21 | 2010-04-16 | Saipem Sa | FLOATING SUPPORT COMPRISING A TURRET EQUIPPED WITH A MOORING BUOY FOR DOWNLINK / DECKABLE SURFACE LINK PIPES |
| CN102137788A (en) * | 2008-08-29 | 2011-07-27 | 霍顿维森深水公司 | Floating oil storage system and method |
| CN103129715B (en) * | 2012-03-16 | 2017-02-01 | 中国海洋石油总公司 | Conduit-rack semi-submersible type oil-extraction platform |
-
2014
- 2014-01-26 CN CN201410036825.9A patent/CN103738478B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN103738478A (en) | 2014-04-23 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee after: COTEC, Inc. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Co-patentee before: COTEC, Inc. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20220126 |