CN108442309A - A kind of truss framed leg Liftable type drilling platforms bath scaled model experimental device - Google Patents
A kind of truss framed leg Liftable type drilling platforms bath scaled model experimental device Download PDFInfo
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- CN108442309A CN108442309A CN201810528009.8A CN201810528009A CN108442309A CN 108442309 A CN108442309 A CN 108442309A CN 201810528009 A CN201810528009 A CN 201810528009A CN 108442309 A CN108442309 A CN 108442309A
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- spud leg
- hull
- leg
- fixed
- supporting rack
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- 238000005553 drilling Methods 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 8
- 210000002421 cell wall Anatomy 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000000725 suspension Substances 0.000 claims description 8
- 238000009432 framing Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010200 validation analysis Methods 0.000 abstract description 2
- 210000000515 tooth Anatomy 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/02—Hydraulic models
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
- E02B2017/006—Platforms with supporting legs with lattice style supporting legs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of truss framed leg Liftable type drilling platforms bath scaled model experimental devices, its spud leg is fixed on platform, lifting and driving is fixed on hull with retaining mechanism at spud leg hole in pairs, lifting and driving and retaining mechanism include supporting rack, there is gear grooved, axis pin both ends to be fixed on the cell wall of gear grooved for supporting rack upper end, and transmission gear is mounted on axis pin, the also telescopic installation locking tooth block of supporting rack, locking teeth block is with transmission gear along the vertical installation of supporting rack；The string pipe of spud leg is welded on the two-sided rack both sides by heavy wall semi-circular tube and constitutes, and spud leg passes through spud leg hole, and a pair of of lifting and driving is located at string pipe both sides with retaining mechanism, and the two-sided rack both sides of string pipe are engaged with corresponding transmission gear；Cantilever beam one end is fixed on hull, and multiple limited blocks are arranged in the part that cantilever beam stretches out hull, and load attachment is set at the limited block of cantilever beam.The present invention solves marine drilling platform structural finite element model accuracy and is difficult to validation problem.
Description
Technical field
The present invention relates to the experimental provisions of ocean engineering field drilling platforms, can more particularly to a kind of truss framed leg
Lift drilling platforms bath scaled model experimental device.
Background technology
With petering out for landing field petroleum resources, exploitation center of gravity is gradually transferred to ocean by land.Marine environment complexity,
Badly, the job safety of marine drilling platform is seriously affected.Self-elevating drilling platform is that current domestic and international application is most widely moved
Dynamic formula marine drilling platform, but it is most of have been approached or extend service in the army, wherein truss framed leg self-elevating drilling platform occupy compared with
Big proportion, is especially embodied in deepwater drilling.It, which is once damaged, will lead to serious consequence.To ensure drilling platforms work safety
Property, carrying out damage check, health monitoring and Research on Safety Assessment for it is particularly important.It is flat for such both at home and abroad at present
The damage check of platform is concentrated mainly on underwater appearance detection and nondestructive inspection etc. with safety evaluation, expensive.And it is based on
Vibration-testing with damage check that finite element analysis is combined and Safety Evaluation Technology because low cost, easily realize the advantages that gradually at
For research hotspot.But this method analysis result depends critically upon the accuracy of finite element model, and influences finite element model standard
The factor of true property is in addition to structure itself, boundary condition, spudder also between spud leg and hull constraints, spud leg and soil
The factors such as working condition loading are related.In order to solve this problem, it is necessary to finite element model be carried out using vibration-testing and analysis data
It corrects.And if this work practical marine drilling platform carry out, it is with high costs, it is difficult to carry out Structure Damage Simulation.Therefore,
A kind of device that can carry out previous experiments in laboratory conditions is urgently designed in this field, can from pile leg structure mechanical property,
Spud leg is consistent with hull constraint principles aspect with prototype, to reduce experimental cost, is eliminated and is pacified caused by simulating damage
Full hidden danger.
Invention content
The object of the present invention is to provide a kind of truss framed leg Liftable type drilling platforms bath scaled model experimental device, this truss
Formula spud leg Liftable type drilling platforms bath scaled model experimental device solves the problems, such as that can not carry out simulation in actual platform damages, can
It is consistent with actual well drilled platform leg mechanical property, spud leg and hull constraint principles, reduces experimental cost.
The technical solution adopted by the present invention to solve the technical problems is：This truss framed leg Liftable type drilling platforms
Bath scaled model experimental device includes spud leg, hull, lifting and driving and retaining mechanism, cantilever beam, load attachment, platform；Spud leg is fixed on
Spud leg hole is provided on platform, on hull, lifting and driving is fixed on retaining mechanism on hull at spud leg hole in pairs, lifting and driving
Include supporting rack with retaining mechanism, there is gear grooved, axis pin both ends to be fixed on the cell wall of gear grooved for supporting rack upper end, driving cog
Wheel is mounted on axis pin, the also telescopic installation locking tooth block of supporting rack, and locking teeth block is with transmission gear along the vertical peace of supporting rack
Dress；Spud leg is truss structure, and the string pipe of spud leg is welded on the two-sided rack both sides by heavy wall semi-circular tube and constitutes, and spud leg passes through spud leg
Hole, a pair of of lifting and driving and retaining mechanism are located at string pipe both sides, and the two-sided rack both sides of string pipe with corresponding transmission gear
Engagement；Cantilever beam one end is fixed on hull, and multiple limited blocks are arranged in the part that cantilever beam stretches out hull, and load attachment is set to
At the limited block of cantilever beam, load attachment is made of square steel and suspension hook, and suspension hook is connect with lifting lug in the middle part of square steel.
Spud leg is triangular prism shaped truss structure in said program, and string pipe is rib, the outer surface of triangular prism shaped spud leg by stull,
Modified scissors truss forms, and it is that heavy wall semi-circular tube is welded on the two-sided rack both sides to have inner support, string pipe inside spud leg, and spud leg has three, with
The position on three vertex of equilateral triangle is uniformly stood on platform, and spud leg is bolted with platform.
Hull is formed by Interal fixation on hull framing in said program, and hull framing is welded by channel steel, hull
Interior zone steel plate is fixed using riveting, is welded and fixed using steel plate with the join domain of spud leg.
In said program the supporting rack of lifting and driving and retaining mechanism by steel plate milling, drill, the bottom of supporting rack
Seat is cuboid, and respectively there are one oval sliding slot, supporting rack is connected by oval sliding slot and hull bolt at four angles of cuboid
It connects, with teeth piece of slot is arranged in supporting rack middle-end, and mono- vertical threaded hole of Ge Kai, the slot bottom of tooth block slot open up two water to tooth block slot up and down
Flat thread hole, locking teeth block are telescopically fixed on by two vertical bolts and two leveling screws in tooth block slot, pass through two
Leveling screw controls the degree that locking teeth block stretches out tooth block slot, is laterally locked spud leg the two-sided rack with realizing, perpendicular by two
Locking teeth block is vertically locked to bolt.
Cantilever beam is vertical ladder shape in said program, is welded using U-steel, one end is fixed by bolts on hull, is stretched
Going out symmetric design on the girder of part overarm arm has three pairs of limited blocks, can be used for simulating different drilling well well locations.
The invention has the advantages that：
1, the present invention uses the likelihood ratio 1:40 large scale elastic models, primary structure can show practical sea platform corresponding construction it is quiet,
Dynamic feature solves such platform structure finite element model accuracy and is difficult to validation problem.
2, the platform on the basis of the present invention is corrected by vibration-testing date comprision and establishes accurate finite element
Model provides benchmark model for platform damage check and safety evaluation, and combines actual platform working condition, system research shadow
The factor for ringing platform structure dynamic characteristic, foundation is provided for the selection of monitoring parameters and the setting of threshold value.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the front view of spud leg in the present invention.
Fig. 3 is the A-A sectional views of spud leg in the present invention.
Fig. 4 is the vertical view of leg-chord pipe in the present invention.
Fig. 5 is the B-B sectional views of leg-chord pipe in the present invention.
Fig. 6 is Ship Structure schematic diagram in the present invention.
Fig. 7 is the schematic diagram of lifting and driving and retaining mechanism in the present invention.
Fig. 8 is the installation diagram of lifting and driving and retaining mechanism in the present invention.
Fig. 9 is the front view of the supporting rack of lifting and driving and retaining mechanism in the present invention.
Figure 10 is the side view of the supporting rack of lifting and driving and retaining mechanism in the present invention.
Figure 11 is cantilever beam and load accessory structure schematic diagram in the present invention.
In figure：1- spud leg 2- hull 3- lifting and drivings and retaining mechanism 4- cantilever beams 5- load attachmentes 6-
Stull 7- diagonal brace 8- inner support 9- string pipe 10- hull framing 11- platform 12- ellipse sliding slot 13- locking teeths
Block 14- transmission gear 15- supporting rack 16- bolt 18- limited block 19- suspension hooks.
Specific implementation mode
The present invention will be further described below with reference to the drawings：
As shown in Figure 1, this truss framed leg self-elevating drilling platform bath scaled model experimental device had both been answered in the design of structural model
With the theory of similarity, it is also considered that the actual forced status of platform structure, this truss framed leg Liftable type drilling platforms mould
Type experimental provision includes spud leg 1, hull 2, lifting and driving and retaining mechanism 3, cantilever beam 4, load attachment 5, platform 11；Spud leg 1
Fixed that spud leg hole is provided on hull 2 on platform 11, lifting and driving is fixed on spud leg hole on hull 2 in pairs with retaining mechanism 3
Place, lifting and driving include supporting rack 15 with retaining mechanism 3, and 15 upper end of supporting rack has gear grooved, and axis pin both ends are fixed on gear
On the cell wall of slot, two transmission gears 14 are separately mounted on corresponding axis pin, centralizing function when playing 2 raising of hull or landing.
The also telescopic installation locking tooth block 13 of supporting rack 15, locking teeth block 13 is with transmission gear 14 along the vertical installation of supporting rack；Spud leg 1
For truss structure, the string pipe 9 of spud leg 1 is welded on the two-sided rack both sides by heavy wall semi-circular tube and constitutes, spud leg 1 pass through spud leg hole, one
9 both sides of string pipe are located to lifting and driving and retaining mechanism 3, and the two-sided rack both sides of string pipe 9 with corresponding transmission gear 14
Engagement, when hull lifts, two transmission gears 14 are moved upwards along the two-sided rack, while the transmission gear 14 of the two-sided rack both sides
Wherein by the two-sided rack limitation, play the role of righting.4 one end of cantilever beam is fixed on hull 2, and cantilever beam 4 stretches out hull 2
Part multiple limited blocks 18 are set, load attachment 5 is set at the limited block 18 of cantilever beam 4, load attachment 5 by square steel with hang
Hook 19 forms, and suspension hook 19 is connect with lifting lug in the middle part of square steel, and load attachment 5 is applied to cantilever for simulating drilling machine difference operating loading
On beam 4.
In conjunction with shown in Fig. 2-Fig. 5, spud leg 1 is triangular prism shaped truss structure, and string pipe 9 is rib, the appearance of triangular prism shaped spud leg 1
Face is made of stull 6,7 truss of diagonal brace, and it is that heavy wall semi-circular tube is welded on the two-sided rack both sides to have inner support 8, string pipe 9 inside spud leg 1
It constitutes, spud leg 1 is had three, uniformly stood on platform 11 with the position on three vertex of equilateral triangle, spud leg 1 and 11 spiral shell of platform
It tethers and connects, the spud leg 1 in the present invention is identical as the self-lifting type marine drilling platform truss type pile leg structure in production application.
Spud leg 1 is used to support hull 2 and simulates influence of the spud leg damage to platform structure dynamic characteristic.
Refering to Fig. 6, hull 2 is formed by Interal fixation on hull framing 10, and hull framing 10 is welded by channel steel, ship
2 interior zone steel plate of body is fixed using riveting, is welded and fixed using steel plate with the join domain of spud leg 1, is played reinforcement effect.
In conjunction with shown in Fig. 7-Figure 10, the supporting rack 15 of lifting and driving and retaining mechanism 3 by steel plate milling, drill,
The pedestal of supporting rack 15 is cuboid, and respectively there are one oval sliding slot 12, supporting rack 15 passes through ellipse at four angles of cuboid
Sliding slot 12 is bolted with hull 2, and 15 middle-end of supporting rack is arranged with teeth piece of slot, tooth block slot mono- vertical threaded hole of Ge Kai up and down,
The slot bottom of tooth block slot opens up two horizontal threaded bores, locking teeth block 13 by two vertical bolts and two leveling screws telescopically
It being fixed in tooth block slot, for the setting of tooth block slot bottom there are two bolt hole, leveling screw passes through bolt hole top solid on locking teeth block 13,
The degree that locking teeth block 13 stretches out tooth block slot is controlled by two leveling screws, is laterally locked 1 the two-sided rack of spud leg with realizing；
Upper and lower two cell walls of tooth block slot also have bolt hole, and two vertical bolts are solid on locking teeth block 13 from upper and lower top respectively,
Locking teeth block 13 is vertically locked by two vertical bolts, the fastening of vertical bolt for convenience, the top of tooth block slot is under
Side is respectively arranged with mounting hole, and lifting and driving is bolted on righting when playing hull lifting on hull 2 with retaining mechanism 3
The effect being secured on spud leg 1.
Refering to fig. 11, cantilever beam 4 is vertical ladder shape, is welded using U-steel, and one end is fixed by bolts on hull 2,
The other end stretches out outside hull 2, and symmetric design has three pairs of limited blocks 18 on the girder of extension overarm arm 4, can be used for simulating not
With drilling well well location；It is provided with load attachment 5 between the girder of cantilever beam 4, loads and is connected with suspension hook 19 on attachment 5, loads attachment 5
Suspension hook 19 is driven to slidably reciprocate in 4 upper edge girder direction of cantilever beam.
Spud leg 1 of the present invention is identical as true self-lifting type marine drilling platform truss type pile leg structure, but string pipe is creative
Be combined together with the two-sided rack, and with retaining mechanism collective effect, realize hull liftable of the present invention, the advantage is that
Agent structure is consistent with true ocean platform situation, based on the model equipment, can carry out such platform damage check with
The researchs such as safety evaluation, FEM updating, platform structure Analysis of Factors Influencing Dynamic Characteristics, without enterprising in true platform
Great amount of cost is saved in row correlative study.
Claims (5)
1. a kind of truss framed leg Liftable type drilling platforms bath scaled model experimental device, it is characterised in that：This truss framed leg can
Lift drilling platforms bath scaled model experimental device includes spud leg（1）, hull（2）, lifting and driving and retaining mechanism（3）, cantilever beam
（4）, load attachment（5）, platform（11）；Spud leg（1）It is fixed on platform（11）On, hull（2）On be provided with spud leg hole, lifting passes
Dynamic and retaining mechanism（3）It is fixed on hull in pairs（2）At upper spud leg hole, lifting and driving and retaining mechanism（3）Including supporting rack
（15）, supporting rack（15）There is gear grooved, axis pin both ends to be fixed on the cell wall of gear grooved for upper end, transmission gear（14）It is mounted on
On axis pin, supporting rack（15）Also telescopic installation locking tooth block（13）, locking teeth block（13）With transmission gear（14）Along support
Frame（15）Vertical installation；Spud leg（1）For truss structure, spud leg（1）String pipe（9）The two-sided rack two is welded on by heavy wall semi-circular tube
Side is constituted, spud leg（1）Across spud leg hole, a pair of of lifting and driving and retaining mechanism（3）Positioned at string pipe（9）Both sides, and string pipe（9）'s
The two-sided rack both sides with corresponding transmission gear（14）Engagement；Cantilever beam（4）One end is fixed on hull（2）On, cantilever beam（4）
Stretch out hull（2）Part multiple limited blocks are set（18）, load attachment（5）It is set to cantilever beam（4）Limited block（18）Place,
Load attachment（5）By square steel and suspension hook（19）Composition, suspension hook（19）It is connect with lifting lug in the middle part of square steel.
2. truss framed leg Liftable type drilling platforms bath scaled model experimental device according to claim 1, it is characterised in that：Institute
The spud leg stated（1）For triangular prism shaped truss structure, string pipe（9）For rib, triangular prism shaped spud leg（1）Outer surface by stull（6）, tiltedly
Support（7）Truss forms, spud leg（1）There is inner support in inside（8）, string pipe（9）It is welded on the two-sided rack both sides, spud leg for heavy wall semi-circular tube
（1）There are three, is uniformly stood in platform with the position on three vertex of equilateral triangle（11）On, spud leg（1）With platform（11）Spiral shell
It tethers and connects.
3. truss framed leg Liftable type drilling platforms bath scaled model experimental device according to claim 2, it is characterised in that：Institute
The hull stated（2）By Interal fixation in hull framing（10）Upper formation, hull framing（10）It is welded by channel steel, hull（2）
Interior zone steel plate is fixed using riveting, with spud leg（1）Join domain be welded and fixed using steel plate.
4. truss framed leg Liftable type drilling platforms bath scaled model experimental device according to claim 3, it is characterised in that：Institute
The lifting and driving and retaining mechanism stated（3）Supporting rack（15）By steel plate milling, drill, supporting rack（15）Pedestal be
Cuboid, respectively there are one oval sliding slots at four angles of cuboid（12）, supporting rack（15）Pass through oval sliding slot（12）With ship
Body（2）It is bolted, supporting rack（15）With teeth piece of slot, tooth block slot mono- vertical threaded hole of upper and lower Ge Kai, tooth block slot is arranged in middle-end
Slot bottom open up two horizontal threaded bores, locking teeth block（13）It is telescopically fixed by two vertical bolts and two leveling screws
In tooth block slot, locking teeth block is controlled by two leveling screws（13）The degree for stretching out tooth block slot, to realize spud leg（1）It is double
Face rack is laterally locked, by two vertical bolts by locking teeth block（13）Vertical locking.
5. truss framed leg Liftable type drilling platforms bath scaled model experimental device according to claim 4, it is characterised in that：Institute
The cantilever beam stated（4）It for vertical ladder shape, is welded using U-steel, one end is fixed by bolts to hull（2）On, extension is outstanding
Beam arm（4）Girder on symmetric design have three pairs of limited blocks（18）, for simulating different drilling well well locations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528009.8A CN108442309A (en) | 2018-05-26 | 2018-05-26 | A kind of truss framed leg Liftable type drilling platforms bath scaled model experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528009.8A CN108442309A (en) | 2018-05-26 | 2018-05-26 | A kind of truss framed leg Liftable type drilling platforms bath scaled model experimental device |
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| Publication Number | Publication Date |
|---|---|
| CN108442309A true CN108442309A (en) | 2018-08-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810528009.8A Pending CN108442309A (en) | 2018-05-26 | 2018-05-26 | A kind of truss framed leg Liftable type drilling platforms bath scaled model experimental device |
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| CN (1) | CN108442309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110789676A (en) * | 2019-11-07 | 2020-02-14 | 招商局重工（江苏）有限公司 | Offshore production platform with three groups of truss rack type pile legs |
| CN111236841A (en) * | 2020-01-13 | 2020-06-05 | 中国海洋石油集团有限公司 | Batch drilling method for tension leg platform cluster wells |
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| CN110789676A (en) * | 2019-11-07 | 2020-02-14 | 招商局重工（江苏）有限公司 | Offshore production platform with three groups of truss rack type pile legs |
| CN111236841A (en) * | 2020-01-13 | 2020-06-05 | 中国海洋石油集团有限公司 | Batch drilling method for tension leg platform cluster wells |
| CN111236841B (en) * | 2020-01-13 | 2021-06-01 | 中国海洋石油集团有限公司 | Batch drilling method for tension leg platform cluster wells |
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Application publication date: 20180824 |