CN107972828A - A kind of offshore platform - Google Patents
A kind of offshore platform Download PDFInfo
- Publication number
- CN107972828A CN107972828A CN201711330938.XA CN201711330938A CN107972828A CN 107972828 A CN107972828 A CN 107972828A CN 201711330938 A CN201711330938 A CN 201711330938A CN 107972828 A CN107972828 A CN 107972828A
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- Prior art keywords
- buoyancy tank
- truss
- offshore platform
- water
- suction
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- 230000000712 assembly Effects 0.000 claims abstract description 25
- 238000000429 assembly Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000005260 corrosion Methods 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000007667 floating Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 241000256848 Apis florea Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 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)
Abstract
The invention discloses a kind of offshore platform, belongs to platform technology field, is designed to solve the problems such as existing structure is poor for applicability.Offshore platform of the present invention includes upper module, buoyancy tank, component truss, suction anchor assemblies and jacking system;Upper module is arranged above buoyancy tank and/or is arranged in buoyancy tank;Buoyancy tank and suction anchor assemblies are connected with component truss respectively;Buoyancy tank can be moved up and down by jacking system along component truss.The offshore platform of the present invention, overall structure fastening can anti-century-old stormy waves;It is small to the size limit of upper module;, can the operation in compared with deep water sea area and platform can be moved, repeatable utilization;In addition, the present invention realizes platform sea self installation, it is not necessary to which Large Construction ship coordinates, and reduces installation cost.
Description
Technical field
The present invention relates to platform technology field, more particularly to it is a kind of suitable for marginal oil field can anti-century-old stormy waves, can remove
Move, the repeatable offshore platform utilized.
Background technology
At present, mainly include suitable for the Platform Type of marginal oil field:Simple platform, 31 patterns (simple platform+
One sea pipe+cable), apis florea pattern (+one shuttle tanker of a simple platform), Mini WHP (Mini
Wellhead Platform, simple wellhead platform) (Mobile Offshore Production Unit, sea are mobile by+MOPU
Production platform) pattern, WHP+FPSO (Floating Production Storage and Offloading, offshore floating type life
Produce oil storage ship) pattern, subsea production tree+FPSO patterns etc..
There are problems with for above-mentioned Platform Type:
(1) simple platform construction is very simple, is only equipped with Wellhead tree, seriously support other platform facilities of periphery, including electricity,
It is oil vapor treatment, outer defeated etc..The depth of water is adapted between 20m-30m, can not be compared with the operation of deep-sea domain.
Stringent control upper module (upper module refers to the equipment for the completing operation on the sea) rule of (2) three one pattern requirements
Mould is following at 200-300 tons, need to rely on other platform facilities of periphery, including electricity, oil vapor treatment, outer defeated etc..The depth of water is adapted in 20-
, can not be compared with the operation of deep-sea domain between 40m.
(3) apis florea pattern can not resist century-old stormy waves, outer defeated dependence shuttle tanker, and since oil storage and production are connected to one
Rise, production security is required high.
(4) Mini WHP+MOPU patterns, it is very high to installation accuracy requirement, need first time and MOPU phases after WHP installations
Even, single WHP can not resist century-old stormy waves.Adapt to the specification of MOPU that depth of water heavy dependence is transformed by drill ship in itself.By WHP
Overall dimensions limit, and well head quantity may not exceed 6.
(5) WHP+FPSO patterns, single WHP scales of investment are big and irremovable, it is impossible to adapt to a variety of depth of water scopes.
FPSO can not resist century-old stormy waves, have a great influence to platform continuous production.
(6) subsea production tree+FPSO patterns, subsea production tree is of high cost, and FPSO can not resist century-old stormy waves, continuous to platform
Influence of production is larger.
As it can be seen that above-mentioned each platform either exist adapt to operating water depth scope it is small the problem of otherwise there are strength problem, will
Or there are the problems such as upper module dimension-limited, there are it is of high cost the problem of, and above-mentioned all platforms can not be moved, no
It is repeatable to utilize.Above-mentioned existing platform it is poor for applicability.
The content of the invention
It is an object of the invention to propose that a kind of structure is firmer, the more preferable offshore platform of applicability.
For this purpose, the present invention uses following technical scheme:
A kind of offshore platform, including upper module, buoyancy tank, component truss, suction anchor assemblies and jacking system;The top
Module is arranged above the buoyancy tank and/or is arranged in the buoyancy tank;The buoyancy tank and the suction anchor assemblies respectively with institute
Component truss is stated to be connected;The buoyancy tank can be moved up and down by the jacking system relative to the component truss.
Further, the upper module include workover rig, well slot, production tree, life building, loop wheel machine, motor, electric equipment compartment,
It is at least one in pump house and oil gas treating device.
Further, when the upper module includes workover rig, it is provided with what is slided for the workover rig on the buoyancy tank
Slide;The workover rig can be moved along the slide, to adjust the center of gravity of the offshore platform.
Further, the buoyancy tank is arranged at the periphery of the truss of the component truss;The buoyancy tank includes buoyancy compartment, sets
Standby cabin and water-filling cabin;The equipment compartment is used to accommodate at least part upper module;The buoyancy compartment is used to produce buoyancy;It is described to fill
Water or discharge water can be filled with water tank.
Further, the component truss adds including truss, anti-corrosion anode, standpipe, cable protecting tube, conquassation ring, node
Qiang Huan;The standpipe is used to convey oil gas;The cable protecting tube is used to be coated on outside cable to protect cable;The anti-corrosion sun
Pole is arranged at the outside of the tube body of the truss;The conquassation ring and the joint strengthening ring are arranged at the tube body of the truss
It is internal.
Further, the jacking system includes gear & rack structure;The buoyancy tank by the gear & rack structure with
The truss connection of the component truss.
Further, the suction anchor assemblies are the square box-structure of lower openings.
Further, the suction anchor assemblies include suction cabin and water-filling blowdown system, and the water-filling blowdown system is used for
The pressure between the suction cabin and sea bottom surface is adjusted in a manner of water-filling or emptying.
Further, the suction cabin is arranged at the periphery of the truss of the component truss.
Further, the water-filling blowdown system includes pump, pipeline, valve and controller;Use one end of the pipeline
Cavity, the other end between the connection suction cabin and sea bottom surface are used to stretch out in sea;The valve is arranged at the pipe
On line;The pump is used to be filled with or extract out fluid into the cavity between the suction cabin and sea bottom surface by the pipeline;Institute
State the work that controller is used to control the pump and the valve
Beneficial effects of the present invention are as follows:
The offshore platform of the present invention, first, overall structure fastening, capacity of anti-storm is stronger, can anti-century-old stormy waves.Secondly,
Using floating box structure, the setting area of upper module can be increased, thus, small to the size limit of upper module, scale is less than
5000 tons applicable.Furthermore due to being provided with jacking system, platform can be moved, repeatable utilization, can be in compared with deep water sea area
Operation;Finally, the present invention realizes platform sea self installation, it is not necessary to which Large Construction ship coordinates, and reduces installation cost.
Brief description of the drawings
Fig. 1 is the structure diagram of offshore platform provided in an embodiment of the present invention;
Fig. 2 is the structure diagram of truss provided in an embodiment of the present invention;
Fig. 3 is the structure diagram of buoyancy tank provided in an embodiment of the present invention;
Fig. 4 is one of assembly structure diagram of rack and tube body provided in an embodiment of the present invention;
Fig. 5 is the two of the assembly structure diagram of rack and tube body provided in an embodiment of the present invention;
Fig. 6 is the structure diagram of rack provided in an embodiment of the present invention;
Fig. 7 is the structure diagram of suction anchor assemblies provided in an embodiment of the present invention;
Fig. 8 is structure diagram of the offshore platform provided in an embodiment of the present invention in towing condition;
Fig. 9 is the installation procedure figure of offshore platform provided in an embodiment of the present invention.
In figure:
1st, buoyancy tank;2nd, component truss;3rd, suction anchor assemblies;
11st, equipment compartment, 12, buoyancy compartment;13rd, water-filling cabin;
21st, tube body;
41st, rack.
Embodiment
Further illustrate technical scheme below with reference to the accompanying drawings and specific embodiments.
Embodiment:
A kind of offshore platform is present embodiments provided, to be designed the problems such as solving existing offshore platform applicability, it can
As oil recovery, gas production or other operations on the sea.
As shown in Figure 1, offshore platform provided in this embodiment includes upper module (not shown), buoyancy tank 1, component truss
2nd, suction anchor assemblies 3 and jacking system (not shown);Upper module is arranged on buoyancy tank 1, and buoyancy tank 1 and suction anchor assemblies 3 divide
It is not connected with component truss 2, buoyancy tank 1 is connected by jacking system with component truss 2, and buoyancy tank 1 can be opposite by jacking system
Moved up and down in component truss 2.
Component truss 2 is used as the supporting structure of offshore platform.As shown in Fig. 2, component truss 2 includes truss.Truss foreign steamer
Wide cross section is preferred but is not limited to rectangular.That is, truss is included vertically with horizontally arranged tube body 21, can
Understand ground, in order to improve the intensity of truss, truss can also include the tube body 21 being obliquely installed.In addition, the purlin in the present embodiment
Frame component 2 further includes the anti-corrosion anode not gone out in figure, standpipe, cable protecting tube, conquassation ring and joint strengthening ring.Wherein, standpipe
The inner side of truss is preferably arranged at cable protecting tube.Standpipe is used to convey oil gas, cable protecting tube be used to being coated on cable it is outer with
Protect cable.Anti-corrosion is arranged at the outside of the tube body 21 of truss with anode, and conquassation ring and joint strengthening ring are arranged at the pipe of truss
The inside of body 21.Anti-corrosion anode, conquassation ring and joint strengthening ring can play the role of protecting truss.
Buoyancy tank 1 is used to provide buoyancy for whole offshore platform and supports upper module.Buoyancy tank 1 is arranged at the periphery of truss.
Specifically, as shown in figure 3, buoyancy tank 1 includes buoyancy compartment 12, equipment compartment 11 and water-filling cabin 13;Equipment compartment 11 is used to accommodate at least portion
Divide upper module;Buoyancy compartment 12 is used to produce buoyancy;Water can be filled with water-filling cabin 13 or discharges water.Understandably, float
Power cabin 12, the quantity of equipment compartment 11 and water-filling cabin 13 and specific distribution form can be configured according to specific needs;Buoyancy compartment 12
Inside is empty cabin, and suitable water is filled with water-filling cabin 13 to coordinate buoyancy needed for generation with buoyancy compartment 12.
The structure of jacking system is unlimited, enables to buoyancy tank 1 to move up and down relative to component truss 2.As one kind
Specific embodiment, jacking system include gear & rack structure;Buoyancy tank 1 is connected by gear & rack structure with truss.More
Body, the inner side of buoyancy tank 1 is connected with gear, and the rack 41 coordinated with gear is provided with along its short transverse on truss.In order to just
In processing, and in order to improve integrally-built intensity, as shown in Figures 4 to 6, rack 41 can be fixed in the following way
On the tube body 21 of truss:Tube body 21 is divided to for two semicircle shape tube bodies 21, and 41 sandwiched of rack is simultaneously fixed on (such as solid by welding
Calmly) between two semicircle tube bodies 21, the both sides of rack 41 stretch out in pipe along extending radially out for tube body 21 in tube body 21, rack 41
Set on the outer wall of the part of body 21 with teeth.
Upper module refers to the equipment for completing operation on the sea, its operation that can be carried out according to specific needs is set
Put.For example, when carrying out offshore oil production operation, upper module include workover rig, well slot, production tree, life building, loop wheel machine, motor,
Electric equipment compartment, pump house and oil gas treating device.Upper mould each structure in the block can all be arranged at the top of buoyancy tank 1 and (be arranged at
The top of buoyancy tank 1 refers to be directly placed on the surface of buoyancy tank) or be all arranged in buoyancy tank 1 or be partly arranged at buoyancy tank 1
Part is arranged in buoyancy tank 1 while top.Specifically, upper mould modules in the block are arranged in the said equipment cabin 11.
For the ease of being adjusted to offshore platform, on the basis of said structure, it is provided with buoyancy tank 1 and is slided for workover rig
Dynamic slide;Workover rig can be moved along slide, to adjust the center of gravity of offshore platform.The direction of slide can according to specific needs into
Row is set, such as in the horizontal direction or vertical direction.It is understood, of course, that ground, can be in the block any mobilizable by upper mould
Module is configured to move along slide, to realize the adjustment of center of gravity.
On the basis of said structure, suction anchor assemblies 3 are the square box-structure of lower openings.Specifically, suction anchor
Component 3 includes suction cabin and water-filling blowdown system;Understandably, suction cabin should have certain weight, so as to realizing energy
Enough realize sinks to the effect that seabed is fixed.Water-filling blowdown system is used to adjust suction cabin and sea in a manner of water-filling or emptying
Pressure between bottom surface.Wherein, as described in Figure 7, suction cabin include multiple suction shipping bills member (be 12 in the present embodiment, but can
Understand ground, the quantity in suction cabin is not limited to 12, can be configured according to specific needs), multiple suction shipping bill members are enclosed
Arranged on the periphery of the truss of component truss 2.
Suction cabin is arranged at the periphery of the truss of component truss.Water-filling blowdown system includes pump, pipeline, valve and control
Device;Cavity, the other end that one end of pipeline is used to connect between suction cabin and sea bottom surface are used to stretch out in sea;Valve is arranged at
On pipeline;Pump is used to be filled with or extract out fluid into the cavity between suction cabin and sea bottom surface by pipeline, and fluid can be liquid
Body and/or gas;Controller is used for the work for controlling pump and valve, for example, the keying of control pump, power, control valve open
The degree close, opened.Specifically, when suction anchor assemblies 3 settle operation, pressure adjustment system extraction suction cabin and sea bottom surface it
Between water, to reduce the pressure between suction cabin and sea bottom surface, suction anchor assemblies 3 is settled down to projected depth;In suction anchor group
When part 3 extracts operation, pressure adjusts system to water or gas is pumped between suction cabin and sea bottom surface, to increase suction cabin and seabed
Pressure between face, makes suction anchor assemblies 3 extract sea bottom surface.
The assemble method and installation method of offshore platform provided in this embodiment are briefly introduced below in conjunction with Fig. 8 and Fig. 9:
1st, the assemble method of offshore platform:
During platform construction, suction anchor assemblies 3 are placed in bottom first;Secondly, buoyancy tank 1 is positioned on suction anchor assemblies 3;So
Component truss 2 is built using vertical construction method afterwards, and buoyancy tank 1 is connected with component truss 2 by jacking system;Finally, will be upper
Portion's module is installed on 1 top of buoyancy tank and inside.
2nd, the installation method of offshore platform:
Under offshore platform during water, by the way of dragging and dragging into the mire, after lower water, buoyancy drift is provided for offshore platform by buoyancy tank 1
On bubbling through the water column.
During offshore platform towage, offshore platform is in state as shown in Figure 8, and offshore platform entirety institute is provided by buoyancy tank 1
The buoyancy needed, operation marine site is dragged to by tugboat.
When offshore platform is installed, component truss 2 and suction anchor assemblies 3 are first transferred to the mud face in seabed by jacking system;Its
Secondary, the sedimentation of suction anchor assemblies 3 rises with buoyancy tank 1 to be carried out at the same time;Then, suction anchor assemblies 3 are settled down to predetermined depth, and buoyancy tank 1 is de-
Preset height is risen to from the water surface;Finally, drill ship berthing carries out drillng operation.
When offshore platform is removed, well head is first cut off;Secondly buoyancy tank 1 is transferred to floating on water, then, lifting component truss
2 and suction anchor assemblies 3 depart from seabed mud face and rise to 1 lower part of buoyancy tank;Finally, offshore platform is dragged to next work by tugboat
Sea of retribution domain.
Offshore platform provided in this embodiment, is primarily due to employ upper module, buoyancy tank 1, component truss 2, suction anchor
Component 3 and this five part of jacking system, overall structure fastening, capacity of anti-storm is stronger, can anti-century-old stormy waves.Secondly, using floating
1 structure of case, can increase the setting area of upper module, thus, small to the size limit of upper module, scale is less than 5000 tons
It is applicable.Furthermore due to being provided with jacking system, when component truss 2 is fixed, buoyancy tank 1 can be moved up and down along truss, buoyancy tank 1
When floating on the surface, truss and suction anchor assemblies 3 can also be moved up and down relative to buoyancy tank 1, thereby realize the entirety of platform
Move, and be not required Large Construction ship to coordinate, reduce offshore construction cost.Further, since component truss 2 adapts to depth of water model
Enclose larger, a kind of component truss 2 is suitable for the operation of deeper water and is suitable for operation of the water depth ratio scope in 30m, real
The recycling of platform is showed.
Above in association with the specific embodiment technical principle that the invention has been described.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention cannot be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
- A kind of 1. offshore platform, it is characterised in thatIncluding upper module, buoyancy tank, component truss, suction anchor assemblies and jacking system;The upper module is arranged above the buoyancy tank and/or is arranged in the buoyancy tank;The buoyancy tank and the suction anchor assemblies are connected with the component truss respectively;The buoyancy tank can be moved up and down by the jacking system relative to the component truss.
- 2. offshore platform according to claim 1, it is characterised in thatThe upper module includes workover rig, well slot, production tree, life building, loop wheel machine, motor, electric equipment compartment, pump house and oil vapor treatment It is at least one in device.
- 3. offshore platform according to claim 2, it is characterised in thatWhen the upper module includes workover rig, the slide slided for the workover rig is provided with the buoyancy tank;The workover rig can be moved along the slide, to adjust the center of gravity of the offshore platform.
- 4. offshore platform according to claim 1, it is characterised in thatThe buoyancy tank is arranged at the periphery of the truss of the component truss;The buoyancy tank includes buoyancy compartment, equipment compartment and water-filling cabin;The equipment compartment is used to accommodate at least part upper module;The buoyancy compartment is used to produce buoyancy;Water or discharge water can be filled with the water-filling cabin.
- 5. offshore platform according to any one of claims 1 to 4, it is characterised in thatThe component truss includes truss, anti-corrosion anode, standpipe, cable protecting tube, conquassation ring, joint strengthening ring;The standpipe is used to convey oil gas;The cable protecting tube is used to be coated on outside cable to protect cable;The anti-corrosion is arranged at the outside of the tube body of the truss with anode;The conquassation ring and the joint strengthening ring are arranged at the inside of the tube body of the truss.
- 6. offshore platform according to any one of claims 1 to 4, it is characterised in thatThe jacking system includes gear & rack structure;The buoyancy tank is connected by the gear & rack structure with the truss of the component truss.
- 7. offshore platform according to any one of claims 1 to 4, it is characterised in thatThe suction anchor assemblies are the square box-structure of lower openings.
- 8. offshore platform according to claim 7, it is characterised in thatThe suction anchor assemblies include suction cabin and water-filling blowdown system;The water-filling blowdown system is used to adjust the pressure between the suction cabin and sea bottom surface in a manner of water-filling or emptying.
- 9. offshore platform according to claim 8, it is characterised in thatThe suction cabin is arranged at the periphery of the truss of the component truss.
- 10. offshore platform according to claim 8, it is characterised in thatThe water-filling blowdown system includes pump, pipeline, valve and controller;Cavity, the other end that one end of the pipeline is used to connect between the suction cabin and sea bottom surface are used to stretch out in sea; The valve is arranged on the pipeline;The pump is used to pass through the pipeline to the cavity between the suction cabin and sea bottom surface Inside it is filled with or extracts out fluid;The controller is used for the work for controlling the pump and the valve.
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CN201711330938.XA CN107972828A (en) | 2017-12-13 | 2017-12-13 | A kind of offshore platform |
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CN201711330938.XA CN107972828A (en) | 2017-12-13 | 2017-12-13 | A kind of offshore platform |
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Cited By (5)
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CN108482600A (en) * | 2018-05-24 | 2018-09-04 | 中国电建集团中南勘测设计研究院有限公司 | A kind of offshore anemometer tower |
CN110341904A (en) * | 2019-08-02 | 2019-10-18 | 深地科技(大连)有限公司 | A kind of Multifunction fishing upper mounting plate based on buoyancy tank design |
CN112049578A (en) * | 2020-09-02 | 2020-12-08 | 江苏省水文地质工程地质勘察院 | Offshore drilling operation device |
CN114313126A (en) * | 2022-01-13 | 2022-04-12 | 东北石油大学 | Fabricated FRP concrete combined guyed tower type platform system and construction method thereof |
CN114348179A (en) * | 2022-01-13 | 2022-04-15 | 东北石油大学 | Floating box mooring type ocean platform and construction method thereof |
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CN114313126A (en) * | 2022-01-13 | 2022-04-12 | 东北石油大学 | Fabricated FRP concrete combined guyed tower type platform system and construction method thereof |
CN114348179A (en) * | 2022-01-13 | 2022-04-15 | 东北石油大学 | Floating box mooring type ocean platform and construction method thereof |
CN114348179B (en) * | 2022-01-13 | 2024-04-09 | 东北石油大学 | Floating box mooring ocean platform and construction method thereof |
CN114313126B (en) * | 2022-01-13 | 2024-04-19 | 东北石油大学 | Assembled FRP concrete combined guy cable tower platform system and construction method thereof |
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