CN105200970B - Method for dismantling discarded jacket through air bags - Google Patents
Method for dismantling discarded jacket through air bags Download PDFInfo
- Publication number
- CN105200970B CN105200970B CN201510546679.9A CN201510546679A CN105200970B CN 105200970 B CN105200970 B CN 105200970B CN 201510546679 A CN201510546679 A CN 201510546679A CN 105200970 B CN105200970 B CN 105200970B
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- air bag
- catheterostat
- aside
- floating unit
- control panel
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Abstract
A method for dismantling a discarded jacket through air bags comprises the following steps: 1, dismantling preparation is performed on the discarded jacket; 2, a plurality of air bag groups are lowered into water and are connected to form a whole air bag floating aiding unit; 3, the air bag floating aiding unit and a local control panel arranged at the top of the discarded jacket are connected, so that the remote control panel can realize controlling and monitoring functions; 4, the air bag floating aiding unit is inflated to be in a pressure maintaining state; 5, a workboat is connected with the discarded jacket and tows the discarded jacket away from the site. The method has the advantages that the dismantling efficiency can be improved greatly and the dismantling cost is reduced; the offshore construction risks are reduced; meanwhile, the completeness of the discarded jacket can be kept, the construction risks caused by jacket disassembly are reduced, and the air bags are recyclable, so that the engineering cost can be reduced substantially.
Description
Technical field
The present invention relates to the dismounting of ocean platform catheterostat, more particularly to one kind is torn open using air bag to throwing aside catheterostat
The method removed.Belong to Offshore Engineering field.
Background technology
In order to avoid on the destruction of marine environment or the exploitation of impact marine resources, according to international convention and domestic method of correlation
Rule, oil gas field is within stopping production 1 year, it is necessary to which platform structure thing is removed and shifted.
At present, there are the various forms of offshore oil platforms of close more than ten thousand seat in the whole world, with the end of these platform service phases,
Increasing platform will be had into throwing aside the stage, coming few decades certainly will welcome the peak of offshore platform dismounting
Phase.
For the dismounting for throwing aside platform is broadly divided into：The first is：Upper group block structured is removed；It is for second：It is right
The dismounting of catheterostat.For the dismounting of catheterostat, traditional method is divided into：Two methods are removed in integral hoisting and decomposition.For chi
Very little relatively small, lighter in weight low profile catheter frame, in the case where crane ship ability is allowed, can adopt the side of integral hoisting
Method；And during for large jacket or crane ship scarce capacity, generally using the method for decomposing dismounting, jacket structure is entered
The appropriate sea dividedly dismantling of row.
Due to by the multiple factors such as the shape of catheterostat, size and weight, crane ship ability, cargo ship area and stability
Restriction, in conventional pilot pipe support method for dismounting, maximum uncertain factor is exactly the big of the absorption affinity of marine pile surface and mud
It is little to be very difficult to estimation.Generally, this absorption affinity can be lost suddenly after a maximum critical value is reached.When this absorption affinity
When losing suddenly, the gib head power of crane barge also can be reduced suddenly.Therefore, the suddenly change of this load, for crane barge hook structure is
It is breakneck, it is likely that to cause the structural damage of crane barge hook.Simultaneously as the absorption affinity size of mud, constructor cannot be determined
The suitable crane barge ship of Yu Xianxuanding crane capacity can be difficult.Therefore, this phenomenon often forces constructor to select than actual need
Ask and want big crane barge ship, so as to the increase of the engineering cost that causes some unnecessary.
The content of the invention
Present invention is primarily targeted at overcoming the disadvantages mentioned above that prior art is present, and one kind is provided using air bag to abandoning
The method that catheterostat is removed is put, it utilizes air bag to provide buoyancy, can not only increase substantially dismounting efficiency, reduces and tears open
Except expense, solve to throwing aside the Dependence Problem during catheterostat is removed to crane barge；And, it is to avoid because mud is in the absorption affinity of stake
The lifting risk that size is uncertain and produces, so as to reduce offshore construction risk；Simultaneously, additionally it is possible to which catheterostat is thrown aside in holding
Integrity, greatly reduce and decompose the construction risk that brought of catheterostat, in addition air bag can be reused, such that it is able to big
Amplitude reduction engineering cost.
The purpose of the present invention is realized by technical scheme below：
A kind of utilization air bag is to throwing aside the method that catheterostat is removed, it is characterised in that：Using following steps：
The first step：To throwing aside the preparation that catheterostat is removed；
1. several air bag groups and inflation/deflation control system are disposed on operation ship；
2. by operation ship near throwing aside catheterostat；And the local control panel in inflation/deflation control system is arranged on throws aside and lead
Pipe support top；After it is determined that marine synoptic climate window is adapted to operation on the sea, then start sea and throw aside catheterostat to remove operation, and will
After one air bag group inflation, lower water is simultaneously floated in the horizontal plane；
3. sea is thrown aside catheterostat and is removed before operation, and the spud leg for throwing aside catheterostat bottom has completed cutting back and cuts and be sitting in sea
On the mud face at bottom；
Second step：Water will be put under several air bag groups by operation ship, then, by diver in the horizontal plane, under several
Air bag group after water is connected to become an integral gasbag and helps floating unit；
3rd step：Air bag is helped floating unit and is placed in the local control panel thrown aside at the top of catheterostat and is connected, to guarantee gas
Each air bag group that capsule is helped in floating unit, can realize control and monitor by the remotely control disk being placed on operation boat deck
Function；
4th step：Help air bag floating unit to be inflated, inflation is stopped after throwing aside catheterostat and floating up to the water surface；Make air bag
Floating unit is helped to be in packing state；
5th step：Operation ship is connected with catheterostat is thrown aside, catheterostat will be thrown aside by operation ship and dragged scene away from.
The operation ship is tugboat.
The air bag helps floating unit to include：Several prefabricated air bag groups, air bag group is made up of several air bags, and each
Net is all mounted with air bag；Wherein, each air bag group is distributed as side by side several layers, and in the interlayer of air bag group steelframe is provided with.
The inflation/deflation control system includes：It is arranged on air compressor machine on operation boat deck, local control panel and long-range control
Disk processed, wherein, it is to be attached by controlling cable pipeline between local control panel and remotely control disk；And by remotely control
Disk controls aerofluxuss, makes air bag help floating unit to sink down into projected depth；It is by filling that local control panel and air bag are helped between floating unit
Exhaust hose is attached；Air compressor machine is by controlling cable pipeline and the local control panel being placed at the top of catheterostat connection；And
Exhaust hose and local control panel connection are filled by single, and is connected with each air bag group by multiple exhaust hoses that fill.
In the first step, when throwing aside in the spud leg insertion seabed mud face of catheterostat, less than 4 meters of spud leg cutting back cuts
Complete.
Several air bag groups are connected as one by connecting rope.
The air bag helps the inner side of floating unit and throws aside the main lower limb surface of catheterostat, it should keep certain design gaps,
To facilitate air bag to help the sinking of floating unit.
Beneficial effects of the present invention：Due to adopting above-mentioned technical proposal, it utilizes air bag to provide buoyancy to the present invention, can not only
Dismounting efficiency is enough increased substantially, removal cost is reduced, is solved the dependence of crane barge is being asked to being thrown aside during catheterostat is removed
Topic；And, it is to avoid the lifting risk produced because mud is uncertain in the absorption affinity size of stake, so as to reduce offshore construction
Risk；Simultaneously, additionally it is possible to which the integrity of catheterostat is thrown aside in holding, greatly reduce and decompose the construction risk that catheterostat is brought,
In addition air bag can be reused, such that it is able to considerably reduce engineering cost.
With reference to the accompanying drawings and examples the invention will be further described.
Description of the drawings
Fig. 1 is operation ship schematic top plan view of the present invention.
Fig. 2 throws aside catheterostat elevational schematic view for the present invention.
Fig. 3 throws aside catheterostat schematic top plan view for the present invention.
Fig. 4 is that air bag of the present invention preparation inflation makes catheterostat floating elevational schematic view.
Fig. 5 is that after airbag aeration of the present invention, under buoyancy, catheterostat departs from mud face, the facade bubbled through the water column to air bag
Schematic diagram.
Fig. 6 throws aside catheterostat in towing condition elevational schematic view for the present invention.
Major Symbol explanation in figure：
1. operation ship, 2. air bag group, 3. remotely control disk, 4. air compressor machine, 5. net, 6. throw aside catheterostat, 7. horizontal plane,
8. mud face, 9. spud leg, 10. air bag help floating unit, 11. steelframes, 12. local control panels, 13. connecting ropes, 14. fill exhaust hose,
Snap ring wet is dragged in 15. controlling cable pipelines, 16. dilatory hawsers, 17. snap rings, 18..
Specific embodiment
The present invention adopts following steps：
The first step：To throwing aside the preparation that catheterostat 6 is removed
First, as shown in figure 1, disposing air bag group 2 and inflation/deflation control system on the ship stern of operation ship 1 or stem deck.
The operation ship 1 of the present embodiment is tugboat.
2nd, as shown in Fig. 2 using the dynamic positioning system being arranged on operation ship 1, by the ship stern or stem of operation ship 1
It is close to throw aside catheterostat 6；And the local control panel 12 in inflation/deflation control system is arranged on throws aside the top of catheterostat 6；True
Weather weather window is adapted to after operation on the sea on Dinghai, then starts sea and throw aside catheterostat 6 to remove operation, and air bag is helped into floating unit
After first air bag group 2 inflation in 10, lower water is simultaneously floated on horizontal plane 7.
3rd, start sea to throw aside before the dismounting operation of catheterostat 6, will first throw aside catheterostat 6 and be sitting on the mud face 8 in seabed, so
Afterwards, then by the spud leg 9 for throwing aside catheterostat 6 the main lower limb of catheterostat 6 is thrown aside through each, and is inserted in the mud face 8 in seabed, now,
Mud face 4 meters of cutting back of spud leg 9 below 8 cuts, and should complete, and is sitting on the mud face in seabed.
Second step：Several air bag groups 2 are connected as one
As shown in figure 3, by operation ship 1 water will be put under several air bag groups 2, then, by diver on horizontal plane 7, make
The air bag group 2 after several lower water is connected to become into an integral gasbag with connecting rope 13 and helps floating unit 10；Wherein, air bag helps floating single
The inner side and the main lower limb surface for throwing aside catheterostat 6 of unit 10, it should certain design gaps are kept, to facilitate air bag to help floating unit 10
Sinking.The air bag group 2 of water is 4 under the present embodiment.
Above-mentioned air bag helps floating unit 10 to include：Several prefabricated air bag groups 2, air bag group 2 is made up of several air bags, and
Net 5 is mounted with each air bag；Each air bag group 2 is distributed as side by side several layers, and (the present embodiment is：Upper and lower two-layer.) wherein,
Mode with bolts is provided with steelframe 11 in the interlayer of air bag group 2, and the setting of the quantity of air bag group 2 and specification need to meet and abandon
Put the reclaimer operation requirement of catheterostat 6.
3rd step：Air bag is helped into floating unit 10 and the connection of inflation/deflation control system
As shown in figure 4, air bag is helped floating unit 10 and is placed in the local control panel 12 of throwing aside the top of catheterostat 6 and is connected,
To guarantee that air bag helps each air bag group 2 of floating unit 10, can be by the remotely control disk 3 that is placed on the after-deck of operation ship 1
Realize control and monitoring function.
Above-mentioned inflation/deflation control system includes：Air compressor machine 4 on being arranged on the ship stern of operation ship 1 or stem deck, on the spot
Control panel 12 and remotely control disk 3, wherein, it is by controlling cable pipeline 15 between local control panel 12 and remotely control disk 3
It is attached；And aerofluxuss are controlled by remotely control disk 3, make air bag help floating unit 10 to sink down into projected depth；Local control panel
12 and air bag to help between floating unit 10 be attached by filling exhaust hose 14；Air compressor machine 4 and remotely control disk 3 are both mounted at
On ship, it is connected with each other by controlling cable pipeline 15, and is connected with the local control panel 12 being placed at the top of catheterostat.It is empty
Press 4 fills exhaust hose 14 and local control panel 12 connects by single, and fills exhaust hose 14 and each air bag by multiple
Group 2 connects.
4th step：Help floating unit 10 to lift by air bag and throw aside catheterostat 6
As shown in figure 5, helping air bag floating unit 10 to be inflated using the control air compressor machine 4 of remotely control disk 3, wait to throw aside and lead
Pipe support 6 is floated up to and stop after the water surface inflation；Then, thrown aside after catheterostat 6 using the leveling of remotely control disk 3, and close air compressor machine
4, make air bag help floating unit 10 to be in packing state.
5th step：Operation ship 1 is connected with catheterostat 6 is thrown aside, and is dragged away from using operation ship 1 and is thrown aside catheterostat 6
As shown in fig. 6, using dilatory hawser 16 by operation ship 1 with throw aside on catheterostat 6 it is wet drag snap ring 18 to be connected, by making
Industry ship 1 will throw aside catheterostat 6 and drag scene away from.
Above-mentioned operation ship, air bag, remotely control disk, air compressor machine, net, local control panel be prior art, not specified (NS)
Technology be prior art, therefore repeat no more.
The above, is only presently preferred embodiments of the present invention, and any pro forma restriction is not made to the present invention, all
It is above example is made any simple modification, equivalent variations and modification according to the technical spirit of the present invention, still falls within
In the range of technical solution of the present invention.
Claims (7)
1. a kind of utilization air bag is to throwing aside the method that catheterostat is removed, it is characterised in that：Using following steps：
The first step：To throwing aside the preparation that catheterostat is removed；
(1) several air bag groups and inflation/deflation control system are disposed on operation ship；
(2) by operation ship near throwing aside catheterostat；And by the local control panel in inflation/deflation control system be arranged on throw aside conduit
Top of the trellis；After it is determined that marine synoptic climate window is adapted to operation on the sea, then start sea and throw aside catheterostat to remove operation, and by one
After individual air bag group inflation, lower water is simultaneously floated in the horizontal plane；
(3) sea is thrown aside catheterostat and is removed before operation, and the spud leg for throwing aside catheterostat bottom has completed cutting back and cuts and be sitting in seabed
Mud face on；
Second step：Water will be put under several air bag groups by operation ship, then, by diver in the horizontal plane, after several lower water
Air bag group be connected to become an integral gasbag and help floating unit；
3rd step：Air bag is helped floating unit and is placed in the local control panel thrown aside at the top of catheterostat and is connected, to guarantee that air bag is helped
Each air bag group in floating unit, can realize control and monitor work(by the remotely control disk being placed on operation boat deck
Energy；
4th step：Help air bag floating unit to be inflated, inflation is stopped after throwing aside catheterostat and floating up to the water surface；Help air bag floating
Unit is in packing state；
5th step：Operation ship is connected with catheterostat is thrown aside, catheterostat will be thrown aside by operation ship and dragged scene away from.
2. utilization air bag according to claim 1 is to throwing aside the method that catheterostat is removed, it is characterised in that：The work
Industry ship is tugboat.
3. utilization air bag according to claim 1 is to throwing aside the method that catheterostat is removed, it is characterised in that：The gas
Capsule helps floating unit to include：Several prefabricated air bag groups, air bag group is made up of several air bags, and is mounted with each air bag
Net；Wherein, each air bag group is distributed as side by side several layers, and in the interlayer of air bag group steelframe is provided with.
4. utilization air bag according to claim 1 is to throwing aside the method that catheterostat is removed, it is characterised in that：It is described to fill
Bleed-Air Control System includes：Air compressor machine on operation boat deck, local control panel and remotely control disk are arranged on, wherein, on the spot
It is to be attached by controlling cable pipeline between control panel and remotely control disk；And aerofluxuss are controlled by remotely control disk, make
Air bag helps floating unit to sink down into projected depth；Local control panel and air bag are helped between floating unit to be connected by filling exhaust hose
Connect；Air compressor machine is by controlling cable pipeline and the local control panel being placed at the top of catheterostat connection；And fill aerofluxuss by single
Flexible pipe and local control panel connect, and are connected with each air bag group by multiple exhaust hoses that fill.
5. utilization air bag according to claim 1 is to throwing aside the method that catheterostat is removed, it is characterised in that：Described
In one step, when throwing aside in the spud leg insertion seabed mud face of catheterostat, less than 4 meters of spud leg cutting back cutting is completed.
6. utilization air bag according to claim 1 is to throwing aside the method that catheterostat is removed, it is characterised in that：The number
Individual air bag group is connected as one by connecting rope.
7. utilization air bag according to claim 1 is to throwing aside the method that catheterostat is removed, it is characterised in that：The gas
Capsule helps the inner side of floating unit and throws aside the main lower limb surface of catheterostat, it should keep certain design gaps, floating to facilitate air bag to help
The sinking of unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546679.9A CN105200970B (en) | 2015-08-31 | 2015-08-31 | Method for dismantling discarded jacket through air bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546679.9A CN105200970B (en) | 2015-08-31 | 2015-08-31 | Method for dismantling discarded jacket through air bags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105200970A CN105200970A (en) | 2015-12-30 |
| CN105200970B true CN105200970B (en) | 2017-04-19 |
Family
ID=54948903
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510546679.9A Expired - Fee Related CN105200970B (en) | 2015-08-31 | 2015-08-31 | Method for dismantling discarded jacket through air bags |
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| Country | Link |
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| CN (1) | CN105200970B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515613B (en) * | 2018-11-13 | 2020-07-28 | 郑州科润机电工程有限公司 | Process suitable for floating transportation and floating installation of wind power pipe pile |
| CN110965804B (en) * | 2019-12-18 | 2021-06-04 | 南方海上风电联合开发有限公司 | A method for removing the foundation of an offshore wind power jacket |
| CN112575758A (en) * | 2020-11-11 | 2021-03-30 | 中国海洋石油集团有限公司 | Method for recycling jacket by means of buoyancy tank |
| CN112644655A (en) * | 2020-11-26 | 2021-04-13 | 海洋石油工程股份有限公司 | Method for abandoning jacket dragging ashore |
| CN115392026B (en) * | 2022-08-26 | 2023-05-05 | 哈尔滨工程大学 | Intelligent simulation system and modeling method for jacket towing operation |
| KR20240028971A (en) | 2022-08-26 | 2024-03-05 | 하얼빈 엔지니어링 유니버시티 | Jacket towing operation intelligent simulation system and modeling method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443914Y (en) * | 2000-09-29 | 2001-08-22 | 大港油田集团有限责任公司 | Cylindrical negative pressure based device made of steel of internal sack |
| PH12012502286A1 (en) * | 2010-06-10 | 2013-02-11 | Ocean Tech Limited | A drill, related drilling arrangement and/or methods therefor |
| CN103410133B (en) * | 2013-08-20 | 2015-12-23 | 中国海洋石油总公司 | Air bag is utilized to carry out the method for Attention problems to deep water jacket |
| CN203947477U (en) * | 2014-07-22 | 2014-11-19 | 葛洲坝集团第五工程有限公司 | A kind of device that utilizes air bag to carry out Double-Wall Steel Boxed Cofferdam dismounting |
| CN104563079B (en) * | 2014-12-30 | 2016-09-21 | 中国海洋石油总公司 | A kind of lifting auxiliary frame floating torr jacket installation for shallow water |
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2015
- 2015-08-31 CN CN201510546679.9A patent/CN105200970B/en not_active Expired - Fee Related
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| CN105200970A (en) | 2015-12-30 |
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Legal Events
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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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. 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. |
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| 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: 20170419 |