CN203819467U - Ocean platform positioning system - Google Patents

Ocean platform positioning system Download PDF

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Publication number
CN203819467U
CN203819467U CN201420138661.6U CN201420138661U CN203819467U CN 203819467 U CN203819467 U CN 203819467U CN 201420138661 U CN201420138661 U CN 201420138661U CN 203819467 U CN203819467 U CN 203819467U
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CN
China
Prior art keywords
platform
wave absorption
preposition
cursory
wave
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.)
Expired - Fee Related
Application number
CN201420138661.6U
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Chinese (zh)
Inventor
袁洪涛
窦培林
曾骥
朱建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Waigaoqiao Of Shaihai Shipbuilding Marine Engineering Design Co Ltd
Shanghai Waigaoqiao Shipbuilding Co Ltd
Original Assignee
Waigaoqiao Of Shaihai Shipbuilding Marine Engineering Design Co Ltd
Shanghai Waigaoqiao Shipbuilding Co Ltd
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Filing date
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Application filed by Waigaoqiao Of Shaihai Shipbuilding Marine Engineering Design Co Ltd, Shanghai Waigaoqiao Shipbuilding Co Ltd filed Critical Waigaoqiao Of Shaihai Shipbuilding Marine Engineering Design Co Ltd
Priority to CN201420138661.6U priority Critical patent/CN203819467U/en
Application granted granted Critical
Publication of CN203819467U publication Critical patent/CN203819467U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an ocean platform positioning system, comprising an ocean platform, multiple buoys and multiple heaving piles used for connecting the ocean platform with the buoys, wherein a waveward face is arranged on the upper part of each buoy; an indent circular-arc front waveward board and an indent circular-arc back waveward board are formed on each waveward face; multiple wave absorbing holes are formed in each indent circular-arc front waveward board; the lower part of each buoy comprises a front wave absorbing board I, multiple front wave absorbing boards II and multiple back wave absorbing boards; the front wave absorbing board I and the front wave absorbing boards II are connected to one side of the corresponding buoy and are provided with a plurality of wave absorbing holes respectively; the back wave absorbing boards are positioned at the other side of the lower part of each buoy and are provided with a plurality of wave absorbing blocks respectively; multiple supports are arranged between the front wave absorbing boards II and the corresponding back wave absorbing boards; the waveward face of each buoy is connected with an anchor used for being fixed onto the sea bottom through at least one tensioned heaving pile. The ocean platform positioning system is light in weight, simple in structure, low in cost and good in locating performance.

Description

Platform position fixing system
Technical field
The utility model relates to a kind of platform position fixing system, belongs to ocean engineering field.
Background technology
Along with the development of deep-water exploration technology, deep-sea oil exploitation paces are accelerated day by day.The exploration practices in Large Oil gas field, the more than ten years whole world shows recently, and Land petroleum resource is day by day exhausted, and 60%~70% newly-increased oil reserves all stems from ocean, and wherein having again half is more than 500 meters regions, deep-sea in the depth of water.In recent years, the soaring oil prices that continues to rise violently accelerates the exploration process of various countries to ocean search for oil especially.Now, Global Oil circle has formed common recognition: sea-bottom oil-gas particularly deep-sea oil gas will be the important area that future world hydrocarbon resources is taken over, and in the following more than ten years, will vigorously support.
The challenge running in the petrol resources exploitation at deep-sea is mainly: the marine environment at deep-sea is more severe, and environmental load is larger.No matter be for drilling platform or production platform, in abyssal environment, position fixing system is the visual plant that ensures that platform carries out normal production operation at sea.The normal position fixing system adopting of platform has: dynamic positioning system (DPS) and anchor mooring positioning system.Along with to the striding forward of the exploitation of territory, deep-sea hydrocarbon resources more paces, existing equipment and technology run into following bottleneck:
1, anchor mooring positioning system is along with the continuous increase of the depth of water, bond cable length continues to increase, cause cost sharp increase, mooring Efficiency Decreasing, system weight excessive, reduce the variable load on platform deck, reserve buoyance to platform is challenged, and the operational capability of a platform of evaluation, one of them very important index is the variable load on deck.
2, dynamic positioning system (DPS) can be worked under any depth of water, locate convenient and swift, but the thing followed is higher laid down cost (control system, thruster, sensor device), higher risk (may lose stationkeeping ability in the time of breakdown of equipment), higher use cost (consumption of fuel and need technician's operation and maintenance equipment).
Therefore, be badly in need of developing at present a kind of platform position fixing system that has low cost and high positioning performance concurrently.
Utility model content
The purpose of this utility model is to overcome the shortcomings such as the weight existing in prior art is large, cost is high, technical sophistication, proposes a kind of platform position fixing system that a kind of system weight is light, simple in structure, cost is lower, positioning performance is good.
The utility model is to solve above-mentioned technical matters by following technical proposals:.
A kind of platform position fixing system, it comprises platform, some cursory, some for connecting platform and cursory heaving pile, its feature is, top cursory described in each has the face of heading sea, the preposition postposition of heading sea plate and a circular arc type that is formed with a circular arc type that is indent on this face of the heading sea plate of heading sea, this preposition plate of heading sea is provided with some wave absorptions hole; Described in each, cursory bottom comprises some preposition wave absorption plates one, some preposition wave absorption plates two, some rearmounted wave absorption plates, described preposition wave absorption plate one, preposition wave absorption plate two-phase connect a side that is positioned at cursory bottom, and be equipped with some wave absorptions hole, described rearmounted wave absorption plate is positioned at the opposite side of cursory bottom, and described rearmounted wave absorption plate is provided with some Wave-dissipating blocks; Between described preposition wave absorption plate two and rearmounted wave absorption plate, be provided with some supports; The described cursory face of heading sea is connected with an anchor for fixing to seabed by least one tension type heaving pile.
In this programme, by the stress point of mooring system from platform transfer to cursory, make mooring system not apply downward pulling force to platform, can make the deck variable load of platform improve 1.5~2 times, greatly improved the transaction capabilities of platform.In this programme, the cursory cubic that is, and face the concave-curve that unrestrained direction is indent, and utilize this concave-curve can effectively subdue wave celerity, unrestrained successful disappears; In addition, for the support of the preposition wave absorption plate one of cross-tie and rearmounted wave absorption plate, also can upset the incident wave entering by wave absorption hole, further consume Wave energy.
Preferably, described in each, for connecting on platform and cursory heaving pile, some balanced floating cylinders and gravity block are all housed.As more excellent, the buoyancy that described in this programme, balanced floating cylinder provides is greater than 1/2nd of gravity block weight in wet base.
Preferably, the identical and concentric stacked setting of the radian of this preposition head sea plate and the rearmounted plate of heading sea.
Preferably, between described preposition wave absorption plate one and preposition wave absorption plate two, be connected and fixed by some fixing muscle.
Preferably, described preposition wave absorption plate one, preposition wave absorption plate two and rearmounted wave absorption plate are plastic flagstone.
Preferably, described tension type heaving pile is polyester heaving pile, lays some balanced floating cylinders and gravity block described in each on polyester heaving pile.What in this programme, adopt is the polyester heaving pile of the Mooring Arrangements of tension type.This polyester heaving pile is commercially available obtaining.
Preferably, some described cursory serial connections form a foursquare break-water, and this platform is positioned at the center of this break-water, and every one side of foursquare break-water is affixed by least two heaving piles and this platform.
Preferably, described in each wave absorption hole just to Wave-dissipating block described in.In this programme, wave absorption hole and Wave-dissipating block shape, different sizes, and each wave absorption hole is just to a Wave-dissipating block.Like this,
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the each preferred embodiment of the utility model.
Positive progressive effect of the present utility model is:
1, the utility model is transferred to the heaving pile on original mooring Yu Haiyang platform on break-water, mooring system is reduced to zero to the downward pulling force of platform, make the variable load on platform deck bring up to 1.5~2 times of original left and right, greatly improved the transaction capabilities of platform.
2, the utility model platform and cursory between adopt polyester heaving pile to be connected, and arrange balanced floating cylinder and gravity block thereon, cursory routine is moved by a small margin and responded the motion response that is converted to gravity block, under the environmental load effects such as stormy waves stream, cursory will be in six-freedom degree (surging, swaying, hang down and swing, head shakes, rolling, pitching) upper generation motion response, wherein head shakes, rolling, these three angular motions of pitching do not produce any impact to platform and gravity block, and surging under conventional sea situation, swaying, hanging down and swinging these three line motions is can be with the heave movement of gravity block and horizontal, longitudinal travel, platform equally also can not be affected, this has reduced platform motion response amplitude greatly, improve staff's operation comfort level, also be more conducive to the normal operation of flat equipments on stage.
3, the floating sea level certain altitude that exceedes, can keep out a part of wind action, reduces the wind load on partial action Yu Haiyang platform; Preposition wave absorption plate one, two and rearmounted wave absorption plate are greater than platform in the undersea degree of depth, have avoided acting on the current load on platform; The cursory direction of heading sea is the circular shape of indent, and the unrestrained successful that disappears can be offset major part and act on the effect of wave load on platform.Visible the utility model can farthest reduce the impact of external environment stormy waves current load on platform, and greatly the motion response that has reduced platform of degree, has improved staff's operation comfort level, is also more conducive to the normal operation of flat equipments on stage.
4, the cursory face of heading sea comprises preposition head sea plate and the postposition plate of heading sea, and on the preposition plate of heading sea, has wave absorption hole, weakens wave to cursory impact; Wave is beaten in matrix postposition and is head sea on plate through wave absorption hole, and a part of wave is upwards beaten at cursory top, has automatically raised cursory height, better resists boisterous sea situation; Another part wave toward between preposition wave absorption plate one and preposition wave absorption plate two to dirty, be divided into two parts, wherein a part flows toward the opposite sense of stream by the wave absorption hole of preposition wave absorption plate one, resist the effect of part stream, another part is vertical toward dirty, bump and rub with horizontal stream, automatically consume the energy of ocean current, thereby reduce the impact to cursory lower three wave absorption plates.
5, preposition wave absorption plate two is fixedly connected with by support with rearmounted wave absorption plate, and further broken, friction incoming flow, consumes the energy of ocean current, thereby reduce the impact to rearmounted wave absorption plate.
6, to change lightweight into by the platform bulky, weight is huge cursory for the object of mooring, greatly reduced hawser tension.
7, compare and conventional mooring system, this positioning system structure is simple, good economy performance and use reliable.
Brief description of the drawings
Fig. 1 is the single cursory connection structure lateral plan of the utility model one embodiment.
Fig. 2 is the plan structure schematic diagram of the utility model while being positioned at ocean face.
Description of reference numerals:
Sea 1, platform 2, balanced floating cylinder 3, heaving pile 4, gravity block 5, cursory 6,
Support 7, rearmounted wave absorption plate 8, Wave-dissipating block 9, preposition wave absorption plate 1, wave absorption hole 11,
Tension type heaving pile 12, anchor 14, seabed 15, heaving pile 16, preposition wave absorption plate 2 17,
Fixing muscle 18, wave absorption hole 19, postposition head sea plate 20, the preposition plate 21 of heading sea
Detailed description of the invention
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
Embodiment
Refer to shown in Fig. 1 to Fig. 4, the utility model discloses a kind of platform position fixing system, comprise platform 2, cursory 6, connect platform 2 and cursory 6 heaving pile 4, balanced floating cylinder 3 and gravity block 5 are housed on this heaving pile; Cursory preposition head sea plate 21 and the postposition plate 20 of heading sea that comprises, has a lot of wave absorptions hole 19 on the preposition plate of heading sea; Cursory 6 lower ends comprise preposition wave absorption plate 1, preposition wave absorption plate 2 17, rearmounted wave absorption plate 8, wherein on preposition wave absorption plate 1, preposition wave absorption plate 2 17, have a lot of wave absorptions hole 11, have a lot of Wave-dissipating blocks 9 on rearmounted wave absorption plate 8.Preposition wave absorption plate 1 is fixing by fixing muscle 18 with preposition wave absorption plate 2 17; Preposition wave absorption plate 2 17 is fixing by support 7 with rearmounted wave absorption plate 8.Cursory 6 sides towards wave utilize anchor 14 to be fixed on seabed 15 by tension type heaving pile 12.
In addition, cursory 6 are cubic, and are the concave-curve of indent in the face of carrying out unrestrained direction, utilize this concave-curve can effectively subdue wave celerity, and unrestrained successful disappears.Therefore, as shown in Figure 1, 2, the preposition postposition of heading sea plate 21 and concave-curve that is formed with same radian and concentric concave-curve in cursory 6 the face of the heading sea one side plate 20 of heading sea, has wave absorption hole 19 on the preposition plate 21 of heading sea, and weakens wave to cursory 6 impact.Wave sees through 19 dozens, the wave absorption hole postposition at matrix and heads sea on plate 20, and a part of wave is upwards beaten at cursory 6 tops, has automatically raised cursory height, resists better boisterous sea situation; Another part wave between preposition wave absorption plate 1 and preposition wave absorption plate 2 17 to dirty, be divided into two parts, wherein a part flows toward the opposite sense of stream by the wave absorption hole 11 of preposition wave absorption plate 1, resist the effect of part stream, another part is vertical toward dirty, bump and rub with horizontal ocean current, automatically consume the energy of ocean current, thereby reduce the impact to three of cursory bottom wave absorption plates.
Balanced floating cylinder 3 and gravity block 5 are housed on heaving pile 4, and the buoyancy that balanced floating cylinder 3 provides is greater than 1/2nd of gravity block 5 weight in wet bases, avoids the generation of gravity block 5 to the oriented lower pulling force situation of platform 2.
In addition, cursory 6 also for buoyancy is provided, and cursory 6 buoyancy that provide and the downward tension force of tension type heaving pile 12, gravity block 1/5th two weight in wet base, cursory 6 own wts and lower three wave absorption plate weight sums thereof balance each other.
As shown in Figure 2, cursory 6 are fixed on seabed 15 by tension type heaving pile 12 and anchor 14, because cursory 6 weight is far smaller than the weight of platform 2, so under identical sea situation, the tension force of tension type heaving pile 12 can be less on platform 2 than tying up to.
So, under the environmental load effects such as stormy waves stream, cursory 6 will be in six-freedom degree (surging, swaying, hang down and swing, head shakes, rolling, pitching) upper generation motion response, wherein head shakes, rolling, these three angular motions of pitching do not produce any impact to platform 2 and gravity block 5, and surging under conventional sea situation, swaying, hanging down and swinging these three line motions is can be with the heave movement of gravity block 5 and horizontal, longitudinal travel, platform 2 equally also can not be affected, this has reduced platform 2 motion response amplitudes greatly, improve staff's operation comfort level, and be more conducive to the normal operation of equipment.
In the present embodiment, on preposition wave absorption plate 1 and preposition wave absorption plate 2 17, be furnished with a lot of wave absorptions hole 11, wave absorption hole 11 shapes, different sizes; On rearmounted wave absorption plate 8, arrange a lot of Wave-dissipating blocks 9, Wave-dissipating block 9 shape sizes are different, and wave absorption hole 11 is just to Wave-dissipating block 9.First such setting is conducive to Wave-dissipating block 9 and dissolves step by step the Wave energy transmitting from wave absorption hole 11; Secondly, due to Wave-dissipating block 9 and wave absorption hole 11 shape sizes different, form various incident wave, backward wave, between them, automatically consumed Wave energy so that the various ways such as collision, reflection, fragmentation, friction, whirlpool are inner, thereby reduce the impact to break-water.
In addition, for supporting the support 7 of preposition wave absorption plate 1 and rearmounted wave absorption plate 8, also can upset the incident wave entering by wave absorption hole 11, further consume Wave energy.
As shown in Figure 2, floating 6 exceed sea 1 certain altitude, can keep out a part of wind action, reduce the wind load on partial action Yu Haiyang platform 2; Preposition wave absorption plate 1, preposition wave absorption plate 2 17 and the degree of depth of rearmounted wave absorption plate 8 under sea 1 are greater than platform 2, have avoided acting on the current load on platform 2; Cursory 6 directions of heading sea are the circular shape of indent, and the unrestrained successful that disappears can be offset major part and act on the effect of wave load on platform 2.So the utility model can be resisted most environmental loads, make platform 2 in the safe operation of tranquil marine site.
In addition it is to be noted, in the present embodiment, just simply do a brief description taking cursory 6, tension type heaving pile 12, a root system cable 4 as a kind of platform position fixing system of the utility model, when actual construction operation, as shown in Figure 2, several are cursory through a foursquare break-water of heaving pile 16 serial connection formation, and platform is trapped among to foursquare center, if establishing this foursquare length of side is L, and heaving pile 4 quantity of every one side of break-water while being connected with platform are more than two or two.As shown in Figure 2, be respectively connected by heaving pile 16 between cursory.And in order to get rid of the generation of platform 2 and floating 6 collision situations, the length that heaving pile 4 is set is 0.55L~0.65L.
The utility model, by mooring system is transferred to cursory 6 from platform 2, make mooring system there is no downward pulling force to platform 2, between the deck variable load of platform 2 can being improved to 1.5~2 times, greatly improved the transaction capabilities of platform 2.
Although more than described detailed description of the invention of the present utility model, but those skilled in the art is to be understood that, these are only casehistorys, are not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these embodiments.Therefore, protection domain of the present utility model is limited by appended claims.

Claims (8)

1. a platform position fixing system, it comprises platform, some cursory, some for connecting platform and cursory heaving pile, it is characterized in that, top cursory described in each has the face of heading sea, the preposition postposition of heading sea plate and a circular arc type that is formed with a circular arc type that is indent on this face of the heading sea plate of heading sea, this preposition plate of heading sea is provided with some wave absorptions hole; Described in each, cursory bottom comprises some preposition wave absorption plates one, some preposition wave absorption plates two, some rearmounted wave absorption plates, described preposition wave absorption plate one, preposition wave absorption plate two-phase connect a side that is positioned at cursory bottom, and be equipped with some wave absorptions hole, described rearmounted wave absorption plate is positioned at the opposite side of cursory bottom, and described rearmounted wave absorption plate is provided with some Wave-dissipating blocks; Between described preposition wave absorption plate two and rearmounted wave absorption plate, be provided with some supports; The described cursory face of heading sea is connected with an anchor for fixing to seabed by least one tension type heaving pile.
2. platform position fixing system as claimed in claim 1, is characterized in that, described in each, for connecting on platform and cursory heaving pile, some balanced floating cylinders and gravity block is all housed.
3. platform position fixing system as claimed in claim 1, is characterized in that, the identical and concentric stacked setting of the radian of plate and the rearmounted plate of heading sea of heading sea that this is preposition.
4. platform position fixing system as claimed in claim 1, is characterized in that, between described preposition wave absorption plate one and preposition wave absorption plate two, is connected and fixed by some fixing muscle.
5. platform position fixing system as claimed in claim 1, is characterized in that, described preposition wave absorption plate one, preposition wave absorption plate two and rearmounted wave absorption plate are plastic flagstone.
6. platform position fixing system as claimed in claim 1, is characterized in that, described tension type heaving pile is polyester heaving pile, lays some balanced floating cylinders and gravity block described in each on polyester heaving pile.
7. platform position fixing system as claimed in claim 1, it is characterized in that, some described cursory serial connections form a foursquare break-water, and this platform is positioned at the center of this break-water, and every one side of foursquare break-water is affixed by least two heaving piles and this platform.
8. platform position fixing system as claimed in claim 1, is characterized in that, described in each, wave absorption hole is just to Wave-dissipating block described in.
CN201420138661.6U 2014-03-25 2014-03-25 Ocean platform positioning system Expired - Fee Related CN203819467U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104743075A (en) * 2015-04-08 2015-07-01 江苏科技大学 Device for reducing initial air gap of semi-submersible platform
CN105113508A (en) * 2015-09-11 2015-12-02 中交公路长大桥建设国家工程研究中心有限公司 Positioning, sinking and controlling system for large-scale bridge deepwater prefabricated foundation
CN106522158A (en) * 2016-12-07 2017-03-22 浙江大学 Floating breakwater with multiple columns of fence type wave stopping insertion plates and design method of floating breakwater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104743075A (en) * 2015-04-08 2015-07-01 江苏科技大学 Device for reducing initial air gap of semi-submersible platform
CN105113508A (en) * 2015-09-11 2015-12-02 中交公路长大桥建设国家工程研究中心有限公司 Positioning, sinking and controlling system for large-scale bridge deepwater prefabricated foundation
CN106522158A (en) * 2016-12-07 2017-03-22 浙江大学 Floating breakwater with multiple columns of fence type wave stopping insertion plates and design method of floating breakwater
CN106522158B (en) * 2016-12-07 2018-09-18 浙江大学 A kind of floating breakwater and its design method keeping off unrestrained plate with multiple row fence type

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140910

Termination date: 20160325

CF01 Termination of patent right due to non-payment of annual fee