CN106945794A - A kind of method for suppressing semisubmersible platform heaving response - Google Patents
A kind of method for suppressing semisubmersible platform heaving response Download PDFInfo
- Publication number
- CN106945794A CN106945794A CN201710084790.XA CN201710084790A CN106945794A CN 106945794 A CN106945794 A CN 106945794A CN 201710084790 A CN201710084790 A CN 201710084790A CN 106945794 A CN106945794 A CN 106945794A
- Authority
- CN
- China
- Prior art keywords
- platform
- floating drum
- volume
- platform floating
- heaving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/005—Equipment to decrease ship's vibrations produced externally to the ship, e.g. wave-induced vibrations
-
- 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
- B63B2035/442—Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
Abstract
The present invention proposes a kind of method for suppressing semisubmersible platform heaving response, does not change platform floating drum displacement of volume and total vertical projected area, reduces the volume at the platform floating drum centre of form, is redistributed volume is cut down at the platform floating drum centre of form at platform floating drum two ends.The present invention passes through to the redistribution at the platform floating drum centre of form with platform floating drum two ends volume, on the premise of platform floating drum displacement of volume and total vertical projected area is not changed, reduce excitation of the wave for platform heaving, it is suppressed that semisubmersible platform heaving is responded.
Description
Technical field
The present invention relates to offshore operation platform field, more particularly to a kind of method for suppressing semisubmersible platform heaving response.
Background technology
Ocean is both current china natural resources exploitation, the important carrier of economic development, is also that following China realizes sustainable development
The grand strategy space of exhibition.
Semisubmersible platform is the important job platform of Offshore Engineering, and the heaving of semisubmersible platform suppresses, all the time
All it is the topic that engineers are extremely paid close attention to.Good heaving characteristic can make platform resist more severe ocean ring
Border, increase its can uninterrupted working time, reduce the destruction risk of riser systems, this offshore oil work for high investment excessive risk
It is indispensable for journey.
The existing method for suppressing semisubmersible platform heaving is generally divided into three classes：
（1）Increase drinking water；
（2）Heave plate is installed；
（3）Double-deck lower float structure is set.
Above-mentioned three classes scheme can all be dramatically increased the drinking water of platform, increase drinking water be unfavorable for platform construction and
Migration, moreover, increase drinking water scheme is to the semisubmersible drilling platform of shallower draft itself and does not apply to.
The content of the invention
The present invention proposes a kind of method for suppressing semisubmersible platform heaving response, and solving prior art needs significantly
The problem of degree increase platform absorbs water.
The technical proposal of the invention is realized in this way：
A kind of method for suppressing semisubmersible platform heaving response, does not change platform floating drum displacement of volume and total vertical perspective plane
Product, reduces the volume at the platform floating drum centre of form, is redistributed volume is cut down at the platform floating drum centre of form at platform floating drum two ends.
Alternatively, same volume will be symmetrically cut down from both sides at the platform floating drum centre of form, body will be cut down at the platform floating drum centre of form
Product is symmetrical at platform floating drum two ends after dividing equally, and half volume, platform floating drum rear end both sides are divided equally in platform floating drum front end both sides
Respectively second half volume.
Alternatively, at the platform floating drum centre of form unilateral abatement volume be shaped as it is trapezoidal, to reduce wave for platform heaving
The excitation of motion.
Alternatively, the symmetrical increased volume in platform floating drum two ends is trapezoidal, to reduce wave for platform heaving
Excitation.
Alternatively, the symmetrical increased volume in platform floating drum two ends is in platform floating drum two ends outer fix.
Alternatively, the symmetrical increased volume in platform floating drum two ends is in platform floating drum two ends middle position.
The beneficial effects of the invention are as follows：
To being redistributed at the platform floating drum centre of form with platform floating drum two ends volumes, do not changing platform floating drum displacement of volume and total
On the premise of vertical projected area, excitation of the wave for platform heaving is reduced, it is suppressed that semisubmersible platform heaving rings
Should.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the overall structure diagram of existing semisubmersible platform；
Fig. 2 reduces the structural representation after the volume at the platform floating drum centre of form for the semisubmersible platform of the present invention；
Fig. 3 reduces the perspective view after the volume at the platform floating drum centre of form for the semisubmersible platform of the present invention；
Fig. 4 symmetrically increases the perspective view of one embodiment of volume for the semisubmersible platform floating drum two ends of the present invention；
Fig. 5 symmetrically increases the perspective view of another embodiment after volume for the semisubmersible platform floating drum two ends of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The overall structure of existing semisubmersible platform is as shown in figure 1, the platform structure shown in Fig. 1 includes two floating drums, originally
Invention is illustrated by taking the platform structure of two floating drums as an example, and those skilled in the art can be according to the teachings of the present invention to multiple
The platform of spar structures is improved.
The present invention proposes a kind of method for suppressing semisubmersible platform heaving response, do not change platform floating drum displacement of volume and
Total vertical projected area, reduces the volume at the platform floating drum centre of form, volume will be cut down at the platform floating drum centre of form in platform floating drum
Two ends are redistributed, it is not necessary to increase the drinking water of platform, it is not necessary to original platform structure is done and significantly changed, can be obvious
Reduce the heaving response of original platform, reduce amplitude more than 20%.
The method of a kind of suppression semisubmersible platform heaving response proposed by the invention, by the part at the platform floating drum centre of form
Volume is redistributed at platform floating drum two ends, and the volume of redistribution can be symmetrical or asymmetric distribution, its
Vertical projection of shape can be the geometry such as circle, rectangle, trapezoidal.
It is described in detail with reference to the specific embodiment and Figure of description of the present invention, following embodiments are with by platform
Partial volume at the floating drum centre of form is illustrated exemplified by platform floating drum two ends are symmetrical, as long as asymmetric distribution embodiment will
Volume is cut down at the platform floating drum centre of form in the asymmetric redistribution in platform floating drum two ends.
As shown in Fig. 2 to 5, the method that a kind of suppression semisubmersible platform heaving proposed by the invention is responded does not change flat
Table flotation cylinder displacement of volume and total vertical projected area, reduce the volume at the platform floating drum centre of form, by the platform floating drum centre of form from
Same volume is symmetrically cut down in both sides, symmetrical at platform floating drum two ends after volume is divided equally by being cut down at the platform floating drum centre of form, puts down
Half volume is divided equally in table flotation cylinder front end both sides, and second half volume is divided equally in platform floating drum rear end both sides.
As shown in figure 3, at the platform floating drum centre of form unilateral abatement volume be shaped as it is trapezoidal（11,12,13,14）, to reduce
Excitation of the wave for platform heaving.
As shown in Figure 4 and Figure 5, the symmetrical increased volume in platform floating drum two ends is trapezoidal（21,22,23,24）, to reduce sea
Excitation of the wave for platform heaving.The symmetrical increased volume in platform floating drum two ends can be in two ends outer fix, such as Fig. 4 institutes
Show, or, the symmetrical increased volume in platform floating drum two ends can be in two ends middle position, as shown in Figure 5.
By the redistribution at the above-mentioned platform floating drum centre of form with platform floating drum two ends volume, do not changing platform pontoon string
On the premise of water volume and total vertical projected area, excitation of the wave for platform heaving is reduced, it is suppressed that partly latent
The heaving of formula platform is responded.
Existing semisubmersible platform is improved according to the present invention, it is not necessary to increase the drinking water of platform, it is not necessary to original
There is platform structure to do significantly to change, the heaving response of original platform can be obviously reduced, reduces amplitude more than 20%.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modifications, equivalent substitutions and improvements made etc. should be included within the scope of the present invention.
Claims (6)
1. a kind of method for suppressing semisubmersible platform heaving response, it is characterised in that do not change platform floating drum displacement of volume and total
Vertical projected area, reduce the platform floating drum centre of form at volume, will at the platform floating drum centre of form cut down volume in platform floating drum two
End redistribution.
2. a kind of method for suppressing semisubmersible platform heaving response as claimed in claim 1, it is characterised in that by platform floating drum
Same volume is symmetrically cut down from both sides at the centre of form, it is symmetrical at platform floating drum two ends after volume is divided equally by being cut down at the platform floating drum centre of form
Half volume is divided equally in distribution, platform floating drum front end both sides, and second half volume is divided equally in platform floating drum rear end both sides.
3. a kind of method for suppressing semisubmersible platform heaving response as claimed in claim 1, it is characterised in that platform floating drum shape
At the heart unilateral abatement volume be shaped as it is trapezoidal, to reduce excitation of the wave for platform heaving.
4. a kind of method for suppressing semisubmersible platform heaving response as claimed in claim 1, it is characterised in that platform floating drum two
The symmetrical increased volume in end is trapezoidal, to reduce excitation of the wave for platform heaving.
5. a kind of method for suppressing semisubmersible platform heaving response as claimed in claim 4, it is characterised in that platform floating drum two
The symmetrical increased volume in end is in platform floating drum two ends outer fix.
6. a kind of method for suppressing semisubmersible platform heaving response as claimed in claim 4, it is characterised in that platform floating drum two
The symmetrical increased volume in end is in platform floating drum two ends middle position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084790.XA CN106945794A (en) | 2017-02-16 | 2017-02-16 | A kind of method for suppressing semisubmersible platform heaving response |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084790.XA CN106945794A (en) | 2017-02-16 | 2017-02-16 | A kind of method for suppressing semisubmersible platform heaving response |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106945794A true CN106945794A (en) | 2017-07-14 |
Family
ID=59466502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710084790.XA Pending CN106945794A (en) | 2017-02-16 | 2017-02-16 | A kind of method for suppressing semisubmersible platform heaving response |
Country Status (1)
| Country | Link |
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| CN (1) | CN106945794A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999057011A1 (en) * | 1998-05-01 | 1999-11-11 | Friede & Goldman, Ltd. | Dynamically positioned semi-submersible drilling vessel |
| CN101219705A (en) * | 2008-01-14 | 2008-07-16 | 中国海洋石油总公司 | Semi-submersible drilling platform |
| CN101804849A (en) * | 2010-04-15 | 2010-08-18 | 南通中远船务工程有限公司 | Construction program of semi-submersible platform for offshore oil and gas development |
| CN201816730U (en) * | 2010-09-13 | 2011-05-04 | 上海利策科技有限公司 | Low-heaving semi-submersible type platform hull |
| CN102227349A (en) * | 2008-10-10 | 2011-10-26 | 霍顿-维森深水公司 | Semi-submersible offshore structure |
| KR20140009770A (en) * | 2012-07-13 | 2014-01-23 | 삼성중공업 주식회사 | Semi-submersible marine structure |
| WO2014168789A1 (en) * | 2013-04-10 | 2014-10-16 | Technip France | Floating offshore platform with pontoon-coupled extension plates for reduced heave motion |
-
2017
- 2017-02-16 CN CN201710084790.XA patent/CN106945794A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999057011A1 (en) * | 1998-05-01 | 1999-11-11 | Friede & Goldman, Ltd. | Dynamically positioned semi-submersible drilling vessel |
| CN101219705A (en) * | 2008-01-14 | 2008-07-16 | 中国海洋石油总公司 | Semi-submersible drilling platform |
| CN102227349A (en) * | 2008-10-10 | 2011-10-26 | 霍顿-维森深水公司 | Semi-submersible offshore structure |
| CN101804849A (en) * | 2010-04-15 | 2010-08-18 | 南通中远船务工程有限公司 | Construction program of semi-submersible platform for offshore oil and gas development |
| CN101804849B (en) * | 2010-04-15 | 2012-07-25 | 南通中远船务工程有限公司 | Construction program of semi-submersible platform for offshore oil and gas development |
| CN201816730U (en) * | 2010-09-13 | 2011-05-04 | 上海利策科技有限公司 | Low-heaving semi-submersible type platform hull |
| KR20140009770A (en) * | 2012-07-13 | 2014-01-23 | 삼성중공업 주식회사 | Semi-submersible marine structure |
| WO2014168789A1 (en) * | 2013-04-10 | 2014-10-16 | Technip France | Floating offshore platform with pontoon-coupled extension plates for reduced heave motion |
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Application publication date: 20170714 |
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