CN101402392A - Ocean platform mounting method and special installation equipment therefor - Google Patents
Ocean platform mounting method and special installation equipment therefor Download PDFInfo
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- CN101402392A CN101402392A CNA2008102267609A CN200810226760A CN101402392A CN 101402392 A CN101402392 A CN 101402392A CN A2008102267609 A CNA2008102267609 A CN A2008102267609A CN 200810226760 A CN200810226760 A CN 200810226760A CN 101402392 A CN101402392 A CN 101402392A
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Abstract
The invention discloses a method for assembling an ocean platform and a special assembling device thereof. The special assembling device comprises a barge, wherein a supporting frame is arranged on a deck of the barge, and both sides of the barge are provided with fender devices. When an upper chunk leg is conveyed over a jacket leg, the barge stops moving horizontally; butt joint of an upper chunk and a jacket is completed by utilization of the oceanic tide fall and by pressurization and water carrying of the barge; and ballast is continuously performed on the barge and is withdrawn from a notch of the jacket until a certain safety clearance is formed between the supporting frame and the upper chunk. The method fully utilizes the natural power of the oceanic tide fall, integrates the double action of pressurization and water carrying, achieves the aim of assembling structural objects, saves the resource of a large floating crane and the mounting cost, is convenient to integrally construct the upper chunk of the large ocean platform, reduces the marine debugging time, accelerates completion and commissioning of oil fields, is suitable to be used in shoal areas into which the floating crane can not enter, and can be extended into other projects such as harbor construction, bridge construction and so on.
Description
Technical field
The present invention relates to the construction operating technique of platform, particularly relate to a kind of ocean tide that utilizes and carry out method and special installation apparatus that platform is installed.
Background technology
Along with the China's oil resources consumption increases considerably, the national energy strategy is subjected to very big challenge, develops China's offshore oil resource cost-effectively fast and receives much concern.The marine oil production platform of China's marine petroleum development is owing to more perfect function, PROCESS FOR TREATMENT equipment are complicated more at present, and marine oil production platform upper chunk weight has increasing trend.The installation method of upper chunk normally adopts large-scale floating crane to carry out the sea and installs, if install at the sea of all adopting hanging method to carry out the platform upper chunk, when off-shore oil field is built quantity for a long time, this just needs a large amount of crane barge resources, will inevitably cause crane barge Resource allocation and smoothing difficulty, and the increase cost of installation, even because of the crane barge resource can not put in place on schedule, and oilfield construction is delayed.Therefore, it is extremely urgent to study new upper chunk installation method, especially at the docking technique of large-scale chunk and platform jacket.
Summary of the invention
The purpose of this invention is to provide a kind of platform installation method and special installation apparatus thereof.
The special installation apparatus that is used for the platform installation provided by the invention as shown in Figure 1-Figure 3, comprises a barge 2, and the deck of this barge is provided with support frame 4, and this support frame and platform are complementary, and the both sides of barge are provided with ship side protector 6.
The ship side protector 6 of barge both sides can avoid barge 2 bumping between barge 2 and the jacket 3 after the notch that enters between the jacket leg, and the fender material is generally rubber, and the fender installation length is board and the possible length of contact of jacket leg.
The method of utilizing above-mentioned special installation apparatus to carry out the platform installation provided by the invention is on the support frame 4 that earlier platform upper chunk 1 is fixed on barge 2 decks, afterwards barge 2 is checked a side of jacket 3;
When the platform upper chunk leg be positioned at corresponding pipe frame leg directly over the time, barge 2 stops parallel motion and keeps flat floating state, waits for the arrival of seawater high tide level;
When high tide level arrives, in barge 2, add ballast water;
When low tide level (LWL) arrived, because the double action that ballast water increases and tidal level reduces, platform upper chunk 1 fell with barge 2, cuts away the support frame between platform upper chunk 1 and the barge 2 when falling; When the upper chunk leg of platform when docking shock absorber and bump, dock between platform upper chunk leg and the jacket leg;
After butt joint was finished, welding platform upper chunk leg and jacket leg were finished the installation of platform upper chunk.
Wherein, steel jacket 3 is for being located in the platform bottom section unit on the sea bed in advance.
Butt joint shock absorber 5 is divided into two parts up and down: top is welded on the upper chunk leg of platform, and the bottom is welded on the jacket leg.The number of this device depends on the number of the leg that jacket 3 docks with platform upper chunk 1, one cover butt joint shock absorber 5 is all arranged on the leg of every jacket 3, being welded in respectively on the leg of platform upper chunk 1 and jacket 3, is an integral body after butt joint is finished.The effect of this device is to absorb the collision energy that docking operation took place, and avoids damaging works.And the upper chunk leg lower end is established taper and is inserted sharp structure, and each leg upper end of jacket is provided with concave structure, with the convenient steel cylinder zone, top that captures the jacket leg in docking operation, realizes accurately butt joint.
In the above-mentioned installation method, enter the notch of jacket 3 when carrying has the barge 2 of platform upper chunk 1, during platform upper chunk leg process jacket leg, the clean gap between upper chunk leg and the jacket leg is not less than 0.5 meter.When the platform upper chunk leg be positioned at corresponding pipe frame leg directly over the time, bonded assembly part support frame legs between cutting barge 2 and the platform upper chunk 1.
When docking shock absorber 5 and bump, except that fender 6 and jacket leg bumped, hull 2 jigging motions can not collide jacket 3 other any positions in the platform upper chunk leg; The clean gap of barge 2 bottoms and jacket 3 horizontal braces should be not less than 0.5 meter.In addition, platform upper chunk 1, barge 2 and jacket 3 can bear the impact force that is produced in the whole erection process.
The installation method that the present invention utilizes above-mentioned special installation apparatus to adopt has the following advantages:
1, made full use of the elements of ocean tide drop, and, reached works purpose is installed, saved the large-scale floating crane resource, saved erected cost in conjunction with the double action that adds ballast water.
2, be convenient to large ocean platform upper chunk monolithic construction, reduce the time of marine debugging, quicken the oil field and go into operation.
3, be applicable to the unapproachable shallow water area of crane barge, and can expand on the Other Engineerings such as port construction and bridge construction.
Description of drawings
Fig. 1 is the birds-eye view of platform special installation apparatus provided by the invention and platform upper chunk.
Fig. 2 is the birds-eye view of platform special installation apparatus provided by the invention.
Fig. 3 is the cutaway view of platform special installation apparatus provided by the invention.
Fig. 4 is the cutaway view before platform special installation apparatus provided by the invention docks with the platform upper chunk.
Fig. 5 is a platform special installation apparatus provided by the invention and cutaway view after the platform upper chunk is docked.
The specific embodiment
In conjunction with Fig. 1-shown in Figure 5, specify the ocean tide that utilizes provided by the invention and carry out the method that platform is installed:
The present invention is subjected to the restriction of certain marine environment condition, main performance assessment criteria is direction, wave height, period of a wave and the tidal level of the relative barge 2 of wave, generally advancing the ship operating condition and be significant wave height carries out less than under 1 meter, flood tide condition, to guarantee between the ship time platform chunk leg and jacket leg certain safety gap is arranged, detailed operating condition need obtain by computational analysis or model test.Begin to enter into notch between the jacket leg at barge 2 under the suitable operating condition, when upper chunk leg being drawn to corresponding pipe frame leg directly over the time, barge 2 stops parallel motion, barge 2 positioned limit its horizontal motion, and wait for the arrival of high tide level and butt joint operation restriction environmental conditions.The butt joint operating condition generally be at significant wave height less than 1 meter, carry out under the ebb tide condition.When high tide level arrives, under the requirement of satisfying the butt joint operating environmental conditions, barge 2 begins to increase ballast water to quicken descending speed, because the increase of barge 2 displacement and the reduction of tidal level, upper chunk 1 is along with barge 2 falls together, the residue that cuts away when falling between platform chunk and the support frame 4 supports, when dropping to certain phase, upper chunk leg will bump with the shock absorber 5 that docks on the jacket leg, the weight of upper chunk 1 is by progressively transferring on the jacket 3, as shown in Figure 5 on the barge 2.After weight shifts and finishes, barge continues ballast, after support frame on the barge 24 and upper chunk had certain safety gap, barge 2 withdrawed from between the notch of jacket 3, and finished the welding job of docking shock absorber 5 on upper chunk leg and the jacket leg.Move back ship time, have certain safety gap between the horizontal brace of assurance barge 2 bottoms and jacket 3.
The inventive method provide utilize ocean tide to carry out platform that the main technical details of embodiment is installed is as follows:
Operating water depth: 28 meters
Jacket leg quantity: 4 * 2
Jacket leg diameter: 2.134 meters
Captain L=142 rice, beam B=36 rice, moldeed depth D=9.75 rice
Chunk size: 57.5 meters * 64 meters
Chunk weight: 10528 tons
Chunk supporting leg spacing: 40 meters.
Claims (9)
1, a kind of erecting equipment that is used for the platform installation, it comprises a barge, it is characterized in that: the deck of described barge is provided with support frame.
2, erecting equipment according to claim 1 is characterized in that: described support frame and described platform are complementary.
3, erecting equipment according to claim 1 and 2 is characterized in that: described barge both sides are provided with ship side protector.
4, a kind of arbitrary described erecting equipment of claim 1-3 that utilizes carries out the method that platform is installed, and is on the support frame that earlier the platform upper chunk is fixed on the barge deck, afterwards barge is checked jacket one side; Described jacket is fixed on the sea bed;
When described platform upper chunk leg be positioned at corresponding pipe frame leg directly over the time, barge stops parallel motion and keeps flat floating state, waits for the arrival of seawater high tide level;
When high tide level arrives, in barge, add ballast water;
When low tide level (LWL) arrived, described platform upper chunk fell with barge, cut away the support frame between described platform upper chunk and the barge when falling; When the upper chunk leg of described platform when docking shock absorber and bump, dock between described platform upper chunk leg and the jacket leg;
Wherein, described butt joint shock absorber is divided into two parts up and down; The top of described butt joint shock absorber is welded on the upper chunk leg of described platform, and the bottom of described butt joint shock absorber is welded on the described jacket leg;
After described butt joint is finished, weld described platform upper chunk leg and jacket leg, finish the installation of described platform upper chunk.
5, method according to claim 4, it is characterized in that: described carrying has the barge of platform upper chunk to enter the notch of jacket, when described platform upper chunk leg was passed through the jacket leg, the clean gap between upper chunk leg and the jacket leg was not less than 0.5 meter.
6, according to claim 4 or 5 described methods, it is characterized in that: after the support frame of described barge between intact described platform upper chunk of described cutting and barge, clean gap between support frame on the described barge and upper chunk leg is not less than 0.5 meter, simultaneously, when the clean gap between the horizontal brace of barge hull bottom and jacket is not less than 0.5 meter, barge is withdrawed from notch between the jacket leg.
7, according to claim 4 or 5 described methods, it is characterized in that: described platform upper chunk leg is when docking shock absorber and bump, and except that fender and jacket leg bumped, the hull jigging motion can not collide other any positions of jacket; The barge bottom should be not less than 0.5 meter with the clean gap of jacket horizontal brace.
8, according to claim 4 or 5 described methods, it is characterized in that: described when the platform upper chunk leg be positioned at corresponding pipe frame leg directly over the time, cut bonded assembly support frame between described barge and the described platform upper chunk.
9, according to claim 4 or 5 described methods, it is characterized in that: described jacket, platform upper chunk and barge can bear the impact force that is produced in the whole erection process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102267609A CN101402392A (en) | 2008-11-21 | 2008-11-21 | Ocean platform mounting method and special installation equipment therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102267609A CN101402392A (en) | 2008-11-21 | 2008-11-21 | Ocean platform mounting method and special installation equipment therefor |
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| CN101402392A true CN101402392A (en) | 2009-04-08 |
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| CNA2008102267609A Pending CN101402392A (en) | 2008-11-21 | 2008-11-21 | Ocean platform mounting method and special installation equipment therefor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850831A (en) * | 2010-05-31 | 2010-10-06 | 南通中远船务工程有限公司 | Hoisting method of living area block of large ocean maritime work platform |
| CN102061684A (en) * | 2011-01-14 | 2011-05-18 | 中国海洋石油总公司 | Floating supporter for blocks of ocean platform |
| CN102117363A (en) * | 2011-01-19 | 2011-07-06 | 中国海洋石油总公司 | Uprighting analysis method for floating Spar platform |
| CN102409650A (en) * | 2011-09-23 | 2012-04-11 | 中国海洋石油总公司 | Method for mounting shallow water ocean jacket platform |
| CN102774472A (en) * | 2012-07-31 | 2012-11-14 | 中国海洋石油总公司 | Construction ship with clearance-variable fenders |
| CN101774422B (en) * | 2009-12-30 | 2013-05-15 | 天津市海王星海上工程技术有限公司 | Novel offshore installation construction resource-combined type pontoon barge |
| CN103303442A (en) * | 2013-05-31 | 2013-09-18 | 中国海洋石油总公司 | Field crude oil storage and transportation method for shallow water oil field |
| CN104975589A (en) * | 2014-04-04 | 2015-10-14 | 广东强光海洋工程有限公司 | Device and method for integral assembly and horizontal movement of prestressed concrete ocean fixing platform |
| CN106516023A (en) * | 2016-11-30 | 2017-03-22 | 中铁隧道勘测设计院有限公司 | Novel transportation method for oversize type prefabricated component |
| CN109056684A (en) * | 2018-09-21 | 2018-12-21 | 中国电建集团华东勘测设计研究院有限公司 | The split type jacket structure of Large marine platform and its installation method of the installation of support method are floated suitable for shallow sea water |
| CN109750602A (en) * | 2019-01-25 | 2019-05-14 | 中交二航局第二工程有限公司 | The anti-slamming of offshore lifting is quickly come to nothing device |
| CN114715360A (en) * | 2021-01-05 | 2022-07-08 | 中国电建集团华东勘测设计研究院有限公司 | Seabed big data center attached to large offshore substation and installation and maintenance process |
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2008
- 2008-11-21 CN CNA2008102267609A patent/CN101402392A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774422B (en) * | 2009-12-30 | 2013-05-15 | 天津市海王星海上工程技术有限公司 | Novel offshore installation construction resource-combined type pontoon barge |
| CN101850831A (en) * | 2010-05-31 | 2010-10-06 | 南通中远船务工程有限公司 | Hoisting method of living area block of large ocean maritime work platform |
| CN102061684A (en) * | 2011-01-14 | 2011-05-18 | 中国海洋石油总公司 | Floating supporter for blocks of ocean platform |
| CN102117363A (en) * | 2011-01-19 | 2011-07-06 | 中国海洋石油总公司 | Uprighting analysis method for floating Spar platform |
| CN102409650A (en) * | 2011-09-23 | 2012-04-11 | 中国海洋石油总公司 | Method for mounting shallow water ocean jacket platform |
| CN102774472A (en) * | 2012-07-31 | 2012-11-14 | 中国海洋石油总公司 | Construction ship with clearance-variable fenders |
| CN102774472B (en) * | 2012-07-31 | 2015-03-11 | 中国海洋石油总公司 | Construction ship with clearance-variable fenders |
| CN103303442A (en) * | 2013-05-31 | 2013-09-18 | 中国海洋石油总公司 | Field crude oil storage and transportation method for shallow water oil field |
| CN104975589A (en) * | 2014-04-04 | 2015-10-14 | 广东强光海洋工程有限公司 | Device and method for integral assembly and horizontal movement of prestressed concrete ocean fixing platform |
| CN104975589B (en) * | 2014-04-04 | 2018-03-20 | 广东海上城建控股发展有限公司 | Prestressed concrete ocean fixed platform integral assembling translating device and method |
| CN106516023A (en) * | 2016-11-30 | 2017-03-22 | 中铁隧道勘测设计院有限公司 | Novel transportation method for oversize type prefabricated component |
| CN109056684A (en) * | 2018-09-21 | 2018-12-21 | 中国电建集团华东勘测设计研究院有限公司 | The split type jacket structure of Large marine platform and its installation method of the installation of support method are floated suitable for shallow sea water |
| CN109750602A (en) * | 2019-01-25 | 2019-05-14 | 中交二航局第二工程有限公司 | The anti-slamming of offshore lifting is quickly come to nothing device |
| CN109750602B (en) * | 2019-01-25 | 2023-09-22 | 中交二航局第二工程有限公司 | Slamming-preventing quick emptying device for offshore hoisting |
| CN114715360A (en) * | 2021-01-05 | 2022-07-08 | 中国电建集团华东勘测设计研究院有限公司 | Seabed big data center attached to large offshore substation and installation and maintenance process |
| CN114715360B (en) * | 2021-01-05 | 2023-02-24 | 中国电建集团华东勘测设计研究院有限公司 | Seabed big data center attached to large offshore transformer substation and installation and maintenance process |
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Open date: 20090408 |