CN108661568B - Deep water conduit device - Google Patents
Deep water conduit device Download PDFInfo
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- CN108661568B CN108661568B CN201810478278.8A CN201810478278A CN108661568B CN 108661568 B CN108661568 B CN 108661568B CN 201810478278 A CN201810478278 A CN 201810478278A CN 108661568 B CN108661568 B CN 108661568B
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- Prior art keywords
- conduit
- steadying plate
- well head
- deep water
- conductor housing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000004020 conductor Substances 0.000 claims abstract description 32
- 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 abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 230000007423 decrease Effects 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims 1
- 210000002435 tendon Anatomy 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 28
- 238000005452 bending Methods 0.000 abstract description 19
- 238000006073 displacement reaction Methods 0.000 abstract description 17
- 239000002689 soil Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 16
- 230000001965 increasing effect Effects 0.000 description 8
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- SEQDDYPDSLOBDC-UHFFFAOYSA-N Temazepam Chemical compound N=1C(O)C(=O)N(C)C2=CC=C(Cl)C=C2C=1C1=CC=CC=C1 SEQDDYPDSLOBDC-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of deep water conduit device.Deep water conduit device of the present invention, comprising: including conduit, conductor housing, marine riser, underwater well head, well head pedestal and steadying plate；The upper end of conduit is fixedly connected by conductor housing with underwater well head, and the upper end of underwater well head connects marine riser；Well head pedestal is set in outside the junction of conduit and conductor housing；Well head pedestal conduit lateral surface below is provided with steadying plate.The present invention is by being arranged steadying plate in seabed mud line conduit lateral surface below, enhance the bending deformation rigidity of conduit, improve the anti-transverse load ability of conduit, it is substantially reduced the lateral displacement and institute's bending moment of conduit, effectively avoid the generation of drilling failure, the stability and safety for improving deep water conduit simultaneously, increase economic efficiency.
Description
Technical field
Well technical field more particularly to a kind of deep water conduit device are drilled the present invention relates to offshore oil and gas field.
Background technique
During ocean deepwater drilling, conduit tripping in place, after connecting with underwater well head, preventer and marine riser, is risen
Structural support effect.Conduit do not glanced off just during being lowered into seabed mud line following design position can guarantee it is good
Tripping in and support effect.Since marine riser upper end is connected with drill ship or drilling platforms, in the marine environment load such as wind, wave, stream
Power effect under, drill ship or drilling platforms shift, marine riser bear complicated power will constantly be transmitted to conduit
On, cause conduit to bear huge transverse bending moment effect, biggish cross force makes conduit that lateral bending deformation, conductor housing axis occur
Line offset is excessive, and well head is easily caused to destroy, and leads to biggish economic loss.
Conduit run-off the straight under the action of cross force mainly is prevented by increasing conduit wall thickness at present.Since conduit is advised
Lattice are defined according to the outer diameter size of conduit, increase the wall thickness of conduit generally by the internal diameter for reducing conduit.
But it is poor by increasing the transverse load effect that conduit wall thickness resistance conduit is born, conduit may still occur laterally
Bending deformation leads to drilling failure.
Summary of the invention
The present invention provides a kind of deep water conduit device, to improve the horizontal bearing capacity and bending resistance of conduit, reduces conduit
Lateral displacement.
The present invention provides a kind of deep water conduit device, including conduit, conductor housing, marine riser, underwater well head, well head pedestal and
Steadying plate；The upper end of the conduit is fixedly connected by the conductor housing with the underwater well head, the upper end of the underwater well head
Connect the marine riser；The well head pedestal is set in outside the junction of the conduit and the conductor housing；The well head pedestal
Conduit lateral surface below is provided with the steadying plate.
Deep water conduit device as described above, wherein the steadying plate be it is multiple, along being provided at circumferentially spaced for the conduit
Form steadying plate component.
Deep water conduit device as described above, wherein the steadying plate component be it is multiple, along the axially spaced-apart of the conduit
Setting.
Deep water conduit device as described above, wherein multiple steadying plate components are mounted on that seabed mud line is below to lead
In the default axial distance of pipe, the default axial distance is 0-20 meters.
Deep water conduit device as described above, wherein the steadying plate quantity that the steadying plate component includes is along the conduit
Axial direction gradually decrease from the top down.
Deep water conduit device as described above, wherein the steadying plate is vertical on the lateral surface of the conduit.
Deep water conduit device as described above, wherein the thickness of the steadying plate is equal to or more than the wall of the conduit
It is thick.
Deep water conduit device as described above, wherein the steadying plate is welded on the lateral surface of the conduit.
Deep water conduit device as described above, wherein the steadying plate is triangle or rectangle.
Deep water conduit device as described above, wherein the deep water conduit device further includes reinforcing rib, the reinforcing rib
One end is fixedly connected with the steadying plate, and the other end of the reinforcing rib is fixedly connected with the lateral surface of the conduit.
Deep water conduit device of the present invention is enhanced and is led by the way that steadying plate is arranged in seabed mud line conduit lateral surface below
The bending deformation rigidity of pipe improves the anti-transverse load ability of conduit, hence it is evident that the lateral displacement and institute's bending moment of conduit are reduced,
The generation of drilling failure effectively is avoided, while improving the stability and safety of deep water conduit, is increased economic efficiency.
Detailed description of the invention
Described in detail below, the above and other objects, features and advantages general of the embodiment of the present invention by referring to accompanying drawing
It becomes more clearly understood from.In the accompanying drawings, by by example and it is unrestricted in a manner of multiple embodiments of the invention are said
It is bright, in which:
Fig. 1 is the structural schematic diagram of deep water conduit device of the present invention；
Fig. 2 is the top view of the conduit of deep water conduit device of the present invention；
Fig. 3 is deep water conduit device of the present invention and existing conduit lateral displacement effect contrast figure.
Description of symbols:
1: conductor housing；
11: marine riser；
12: underwater well head；
13: well head pedestal；
14: seabed soil；
2: conduit；
3: steadying plate；
4: seabed mud line；
5: reinforcing rib；
T: the thickness of steadying plate；
W: the width of steadying plate；
D: the outer diameter of conduit.
Specific embodiment
During ocean deepwater drilling, conduit tripping in place, after connecting with underwater well head, preventer and marine riser, is risen
Structural support effect.Conduit do not glanced off just during being lowered into seabed mud line following design position can guarantee it is good
Tripping in and support effect.Since marine riser upper end is connected with drill ship or drilling platforms, in the marine environment load such as wind, wave, stream
Power effect under, drill ship or drilling platforms shift, marine riser bear complicated power will constantly be transmitted to conduit
On, cause conduit to bear huge transverse bending moment effect, biggish cross force makes conduit that lateral bending deformation, conductor housing axis occur
Line offset is excessive, and well head is easily caused to destroy, and leads to biggish economic loss.
Conduit run-off the straight under the action of cross force mainly is prevented by increasing conduit wall thickness at present.Since conduit is advised
Lattice are defined according to the outer diameter size of conduit, increase the wall thickness of conduit generally by the internal diameter for reducing conduit.
But it is poor by increasing the transverse load effect that conduit wall thickness resistance conduit is born, conduit may still occur laterally
Bending deformation leads to drilling failure.
For this purpose, the present invention provides a kind of deep water conduit device, to improve the horizontal bearing capacity and bending resistance of conduit, reduce
The lateral displacement of conduit.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Fig. 1 is the structural schematic diagram of deep water conduit device of the present invention, and Fig. 2 is bowing for the conduit of deep water conduit device of the present invention
View, Fig. 3 are deep water conduit device of the present invention and existing conduit lateral displacement effect contrast figure.
Firstly the need of explanation, in the present invention, noun of locality "upper" is referred to close to the one end on sea level, the noun of locality
"lower" refers to one end far from sea level.
Referring to Fig.1, the present embodiment provides a kind of deep water conduit device, including it is conduit 2, conductor housing 1, marine riser 11, underwater
Well head 12, well head pedestal 13 and steadying plate 3；The upper end of conduit 2 is fixedly connected by conductor housing 1 with underwater well head 12, underwater well
The upper end of mouth 12 connects marine riser 11；The installation of well head pedestal 13 is set in outside the junction of conduit 2 and conductor housing 1；Well head pedestal
13 2 lateral surfaces of conduit below are provided with steadying plate 3.
Specifically, seabed mud line 4 is stretched out in the upper end of conduit 2, is fixedly connected with the lower end of conductor housing 1, the lower end of conduit 2 is stretched
Enter into seabed soil 14.The upper end of conductor housing 1 is connect with the lower end of underwater import 12, and the upper end of underwater well head 12 connects water proof
Pipe 11.Well head pedestal 13 is set on the outside of the junction of conduit 2 and conductor housing 1, and is located at 4 or more seabed mud line.Conductor housing 1
Structure can be existing conduit header structure, it is not limited here.Underwater well head 12 provides the suspension of casing in drilling process
It with sealing approach, and is provided for subsea blowout preventer (not shown) and marine riser and locks end face, the structure of underwater well head 12 can be
Existing underwater well head structure, herein with no restrictions.Marine riser 11 is used to completely cut off seawater, circulating mud in drillng operation, every
The specific structure of water pipe is it is not limited here.Certainly, deep water conduit device provided in this embodiment can also include high-pressure well mouth,
The structures such as safety valve, it is not limited here.
2 lateral surface of conduit below of well head pedestal 13 is provided with steadying plate 3, and steadying plate 3 can be soldered to the outside of conduit 2
Face, alternatively, steadying plate 3 can also be spirally connected, be clamped with conduit 2 etc. and be detachably connected.Steadying plate 3 can be a slab construction,
It is also possible to the plate of the irregular shapes such as arc panel, bent plate, it is preferable that steadying plate 3 is slab construction.Steadying plate 3 can be set
It is multiple, for example, multiple steadying plates 3 can be arranged along the axially spaced-apart of conduit 2, alternatively, multiple steadying plates 3 are in the outside of conduit 2
Face is arranged along the hand of spiral, it is not limited here.In addition, the shape of steadying plate 3 can be the polygons such as triangle, rectangle or
Round, semicircle, ellipse, irregular shape etc., it is not limited here.Steadying plate 3 can be vertical with the lateral surface of conduit 2
Setting, for example, steadying plate 3 is triangle flat plate, the lateral surface of any one side and conduit 2 in three sides is fixed to be connected
It connects, so that triangle side is vertical with the lateral surface of conduit 2；Steadying plate 3 can also be set with the lateral surface of conduit 2 in other angles
It sets, for example, steadying plate 3 is triangle flat plate, any one side in three sides is fixedly connected with the lateral surface of conduit 2,
So that the lateral surface of triangle side and conduit 2 is bonded in 45 degree, 30 degree etc. or triangle projective planum with the lateral surface of conduit 2,
Without limitation to the setting angle of steadying plate and the lateral surface of conduit 2 at this.
Steadying plate 3 is installed in the outside of conduit 2, enhances the bending deformation rigidity of conduit, improves the anti-transverse load of conduit
Ability；It does not need to increase wall thickness, so that having sufficiently large annular annular space between conduit and inner sleeve, is conducive to the later period
Well cementation and drillng operation, improve drilling efficiency, and with common conduit have same bearer ability while, the present embodiment is led
The internal diameter and wall thickness of pipe can suitably reduce, and while reducing material reduces cost, increase the ring between conduit and inner sleeve
Shape space is conducive to well cementation and the drillng operation of later period casing, improves drilling efficiency.Also, steadying plate 3 is located at seabed mud line 4
Hereinafter, will not influence the installation of underwater well head and submerged pipeline.
The installation process of the present embodiment deep water conduit device is described below:
Conductor housing 1 and conduit 2 are welded and fixed on marine drilling platform.In general, steadying plate 3 is connected in processing factory
To the lateral surface of conduit 2, such as steadying plate 3 is welded on to the lateral surface of conduit 2.
Then deep water injection drill assembly is connect with conductor housing tripping in tool on marine drilling platform, conductor housing tripping in
Tool and conductor housing fasten.Using drilling rod connecting conduit head tripping in tool, deep water injection drill assembly, leading for steadying plate is installed
Pipe is sent to seabed.Marine drilling platform starts drilling mud pump, and slush pump pumping sea water sprays drill assembly by drilling rod, deep water
The seabed soil of irrigating catheter bottom, forms erosion hole, and the outer dia that base diameter is greater than conduit is cheated in erosion.Seawater flushing row
Seabed soil out on the annular space between conduit and deep water injection drill assembly by returning in seawater.With conduit bottom
Seabed soil constantly return out upwards, conduit constantly sink under gravity conduit bottom erosion hole in, steadying plate exists
Downlink under the drive of conduit, and the soil below steadying plate is squeezed.
Due to the influence of marine environment, conductor housing is sent into drill string and transverse curvature change is easily occurred by the effect of wind, wave, ocean current
The cross force of conduit and vibration are transmitted on conduit by shape and forced vibration, conductor housing tripping in tool.Conduit and seabed soil
The native effect of stake makes conduit by the reaction force of seabed soil, while steadying plate landfill is in soil, steadying plate and soil it
Between contact force also act in the reaction force acts to conduit of seabed soil, reduce the lateral displacement of conduit, prevent conductor housing
It is under the action of cross force and biggish deviation occurs in gravity direction.
With continuous injection drilling, the conductor housing seat of conduit upper end is placed in the well head pedestal of seabed mud line, conduit
Stop downlink.Termination of pumping, stand a period of time, wait loose seabed soil during backfilling downcomer under the reuse of gravity
The gap formed outside conduit.Conductor housing tripping in tool and deep water injection drill assembly are freed with conductor housing, starting drilling well is flat
The slush pump of platform continues to drill out new pit shaft by tripping in drilling rod using deep water injection drill assembly.Act conduit using drill string
Head tripping in tool and deep water spray drill assembly, complete the installation process of the reinforced conduit device of lateral stability.
Using drilling rod tripping in high-pressure well is oral and surface pipe, high-pressure well it is oral with fill the water mudding after the oral locking of low pressure well
Gu the annular space between surface pipe and conduit.Using marine riser tripping in subsea blowout preventer with high-pressure well is oral is connected, water proof
Pipe one end connects the heave compensator on subsea blowout preventer, one end and drilling platforms and connects.Marine riser is by wind, wave, ocean current
Effect transversely deforming occurs, water proof bottom of the tube is that high-pressure well is oral and conductor housing, and conductor housing becomes the transverse curvature of marine riser
Shape and cross force are transferred to conduit, and making conduit that transversely deforming, conduit and stabilizer and the stake soil contact force of soil occur reduces
The transversely deforming of conduit guarantees conductor housing and the oral plumbness of high-pressure well.
The installation process of the above-mentioned deep water conduit device of the present embodiment is not uniquely that those skilled in the art can also use
Other mounting means such as tripping in after first drilling, the present invention is not specifically limited.
Deep water conduit device provided in this embodiment, by the way that steadying plate is arranged in seabed mud line conduit lateral surface below,
Enhance the bending deformation rigidity of conduit, improve the anti-transverse load ability of conduit, hence it is evident that reduce conduit lateral displacement and
Institute's bending moment, effectively avoids the generation of drilling failure, while improving the stability and safety of deep water conduit, improves economic effect
Benefit.
On the basis of the above embodiments, steadying plate 3 is multiple, to form stable board group along being provided at circumferentially spaced for conduit 2
Part.
Specifically, steadying plate 3 is multiple, such as three, four, five etc., and multiple steadying plates 3 are along the circumference side of conduit 2
It is arranged to interval.The transverse load being subject to for balance pipe all directions, it is preferable that circumference of multiple steadying plates 3 along conduit 2
The setting of direction uniform intervals.Multiple steadying plates 3 to form steadying plate component along being provided at circumferentially spaced for conduit 2, and the present invention is to stabilization
The steadying plate quantity for including in board group part is without limitation.
Steadying plate component can be set one, such as the upper end of steadying plate component is concordant with seabed mud line 4.In some implementations
Example in, steadying plate component be it is multiple, along conduit 2 axially spaced-apart be arranged.For example, steadying plate component is two, three, four
Axially spaced-apart Deng, multiple steadying plate components along conduit 2 is arranged, and multiple steadying plate components are set along the axial uniform intervals of conduit 2
Set, alternatively, axial direction unevenly spaced setting of multiple steadying plate components along conduit 2, for example, between adjacent stable board group part away from
From can be gradually increased from top to bottom.Also, 3 quantity of steadying plate for including in each steadying plate component can be the same, for example, often
A steadying plate component includes four steadying plates 3；Alternatively, the steadying plate quantity for including in each steadying plate component is different, for example,
The steadying plate quantity that steadying plate component by near Sea Bottom mud line 4 includes is more.Distance can foundation between adjacent stable board group part
The actual conditions of oil well are designed, it is not limited here.
Multiple steadying plate components can be set on the length direction of entire conduit, and multiple steadying plate components can also only be set
It sets in conduit portion axial length range.As a preferred embodiment, multiple steadying plate components are mounted on seabed mud line 4
In the default axial distance of conduit 2 below, presetting axial distance is 0-40 meters.
In the actual production process, drill ship or drilling platforms are acted in the power of the marine environment load such as wind, wave, stream
Under, drill ship or drilling platforms generate offset, and the transverse load of receiving is transmitted on conduit by the marine riser of conduit upper end, because
This, the transverse load born closer to the conduit of marine riser is bigger, i.e., the transverse load that conduit is born gradually subtracts from the top down
It is small.It causes to waste in order to avoid being not subject to the part setting steadying plate of transverse load in conduit, the present embodiment is preferred, multiple stabilizations
Board group part is mounted in the default axial distance of the conduit 2 below of seabed mud line 4, and presetting axial distance is 0-20 meters, both can be with
Guarantee that conduit top is set up separately and be equipped with steadying plate component, improves the horizontal bearing capacity and bending resistance of conduit, and can be to avoid not
Necessary conduit lower part, which is set up separately, sets steadying plate component and causes to waste.
Indicate that lateral displacement, Y indicate seabed mud line depth of catheter below referring in particular to Fig. 3, X；A curve represents existing lead
Lateral displacement caused by the following different distance of pipe seabed mud line, B curve represent deep water conduit device of embodiment of the present invention seabed
Lateral displacement caused by the following different distance of mud line.From the figure 3, it may be seen that the present invention is implemented below the mud line of seabed within 20 meters
The lateral displacement that example deep water conduit device generates is less than the lateral displacement that existing conduit generates.Also, in seabed mud line position, i.e.,
The position that depth is 0 in figure, the lateral displacement that deep water conduit device of the embodiment of the present invention generates is than the transverse direction that existing conduit generates
It is displaced much smaller.In addition, be 0 in the lateral displacement that the deep water conduit device more than 20 meters of position below the mud line of seabed generates,
That is, lateral displacement can't occur for the deep water conduit device more than 20 meters of position below the mud line of seabed, it is not necessary that
Steadying plate component is set, material is saved.
Further, 3 quantity of steadying plate that steadying plate component includes gradually decreases from the top down along the axial direction of conduit 2.
The transverse load that conduit 2 is born gradually decreases from the top down, steadying plate component include 3 quantity of steadying plate along conduit 2 it is axial from
On gradually decrease downwards, so as to preferably resist conduit receiving transverse load, improve the horizontal bearing capacity and bending resistance energy of conduit
Power.For example, four steadying plate components are arranged on conduit 2, the first steadying plate component includes six steadying plates, the second steadying plate component
Including five steadying plates, third steadying plate component includes four steadying plates, and the 4th steadying plate component includes three steadying plates, and first
Steadying plate component, the second steadying plate component, third steadying plate component, the 4th steadying plate component are set gradually from the top down.It is adjacent
Steadying plate inter-module every distance can also be gradually increased under upward and downward, for example, the first steadying plate component and the second steadying plate
The distance between component is smaller, and the distance between the second steadying plate component and third steadying plate component are relatively larger, and third is steady
The distance between fixed board component and the 4th steadying plate component are larger.
On the basis of the above embodiments, referring to Fig. 2, steadying plate 3 is vertical with the lateral surface of conduit 2.Specifically, steadying plate
3 being arranged radially along conduit 2 increase the contact area of steadying plate and seabed soil, when bearing transverse bending moment at the top of conduit 2,
Conduit 2 has the trend of transversely deforming, and conduit 2 itself is in close contact with seabed soil, and the support force of horizontal direction is to prevent
The important sources of 2 transversely deforming of conduit；Due to the presence of steadying plate 3, the stake soil contact force between steadying plate 3 and soil is applied to
On conduit 2, increasing conduit 2 prevents from laterally becoming bent deformation, preferably offsets the transverse load that conduit is born.
Further, the thickness T of steadying plate be equal to or more than conduit wall thickness, avoid the thickness T of steadying plate smaller by
Soil extruding in seabed is broken.Preferably, the width W of steadying plate is D/2-D relative to the range of the outer diameter D of conduit, is stablized
The length of plate is D/2-D relative to the range of the outer diameter D of conduit.Wherein, the length of steadying plate is steadying plate in conduit axis side
To size.
Preferably, steadying plate 3 is welded on the lateral surface of conduit 2, and processing installation is simple, and stable connection is reliable.
In some embodiments, steadying plate 3 is a line and conduit of triangle perhaps rectangle triangle or rectangular slab
2 lateral surface is fixedly connected, and the plate face of triangle or rectangle and seabed soil interact, reduce the lateral displacement of conduit with
And institute's bending moment, improve the anti-transverse load ability of conduit.
In order to further increase the stability of steadying plate mounting plate installation, deep water conduit device further includes reinforcing rib 5, is reinforced
One end of muscle 5 is fixedly connected with steadying plate 3, and the other end of reinforcing rib 5 is fixedly connected with the lateral surface of conduit 2.
Specifically, deep water conduit device further includes reinforcing rib 5, and one end of reinforcing rib 5 is fixedly connected with steadying plate 3, is reinforced
The other end of muscle 5 is fixedly connected with the lateral surface of conduit 2.Preferably, one end of reinforcing rib 5 and steadying plate 3 weld, reinforcing rib 5
The other end and conduit 2 lateral surface weld.Reinforcing rib 5 can be set in the side of steadying plate 3, it is preferable that the two of steadying plate 3
A reinforcing rib 5 is respectively arranged in side, and certainly, multiple reinforcing ribs 5 also can be set in two of steadying plate 3.The present embodiment deep water conduit
Device improves the Its ultimate bearing capacity of conduit by the stability connecting in setting reinforcing rib, enhancing steadying plate with conduit.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the above description, reference term " one embodiment ", " some embodiments ", " example ", " specific example " or
The description of " some examples " etc. means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example include
In at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms necessarily needle
Pair be identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can any one or
It can be combined in any suitable manner in multiple embodiment or examples.In addition, without conflicting with each other, those skilled in the art
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined and group
It closes.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. a kind of deep water conduit device, which is characterized in that including conduit, conductor housing, marine riser, underwater well head, well head pedestal and
Steadying plate；
The upper end of the conduit is fixedly connected by the conductor housing with the underwater well head, the upper end connection of the underwater well head
The marine riser；The well head pedestal is set in outside the junction of the conduit and the conductor housing；
The well head pedestal conduit lateral surface below is provided with the steadying plate；
The steadying plate be it is multiple, to form steadying plate component along being provided at circumferentially spaced for the conduit；
The steadying plate component be it is multiple, along the conduit axially spaced-apart be arranged；
Multiple steadying plate components are mounted in the default axial distance of seabed mud line conduit below, the default axial direction away from
From being 0-20 meters；
The steadying plate quantity that the steadying plate component includes gradually decreases from the top down along the axial direction of the conduit；
The steadying plate is arranged radially along the conduit, and the steadying plate is vertical with the lateral surface of the conduit；
The deep water conduit device further includes reinforcing rib, and one end of the reinforcing rib is fixedly connected with the steadying plate, described to add
The other end of strengthening tendons is fixedly connected with the lateral surface of the conduit.
2. deep water conduit device according to claim 1, which is characterized in that the thickness of the steadying plate is equal to or more than
The wall thickness of the conduit.
3. deep water conduit device according to claim 1, which is characterized in that the steadying plate is welded on the outer of the conduit
Side.
4. deep water conduit device according to claim 1, which is characterized in that the steadying plate is triangle or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810478278.8A CN108661568B (en) | 2018-05-18 | 2018-05-18 | Deep water conduit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810478278.8A CN108661568B (en) | 2018-05-18 | 2018-05-18 | Deep water conduit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108661568A CN108661568A (en) | 2018-10-16 |
| CN108661568B true CN108661568B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810478278.8A Active CN108661568B (en) | 2018-05-18 | 2018-05-18 | Deep water conduit device |
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| CN (1) | CN108661568B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403895B (en) | 2018-11-26 | 2023-05-05 | 中国石油大学(北京) | Inner actuating tool of catheter bearing capacity reinforcing device and using method thereof |
| CN113958267B (en) * | 2021-09-16 | 2024-06-14 | 建湖县永维阀门钻件有限公司 | Improved drilling riser assembly |
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|---|---|---|---|---|
| CN202451101U (en) * | 2012-02-22 | 2012-09-26 | 重庆科技学院 | Device for preventing unstability of underwater wellhead of deepwater drilling well |
| JP5837251B1 (en) * | 2015-07-30 | 2015-12-24 | 株式会社ミサキ | Hole-pull-out prevention tool and hole-pipe installation method using the same |
| CN107191138A (en) * | 2017-06-29 | 2017-09-22 | 中国石油天然气股份有限公司 | Deepwater composite conduit running tubular column and underwater installation method thereof |
| CN107227746A (en) * | 2017-06-29 | 2017-10-03 | 中国石油天然气股份有限公司 | Seabed mud surface anchoring type deepwater conduit structure and underwater installation method thereof |
| CN107587849A (en) * | 2017-07-12 | 2018-01-16 | 中国石油天然气股份有限公司 | Deep water drilling conduit |
-
2018
- 2018-05-18 CN CN201810478278.8A patent/CN108661568B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202451101U (en) * | 2012-02-22 | 2012-09-26 | 重庆科技学院 | Device for preventing unstability of underwater wellhead of deepwater drilling well |
| JP5837251B1 (en) * | 2015-07-30 | 2015-12-24 | 株式会社ミサキ | Hole-pull-out prevention tool and hole-pipe installation method using the same |
| CN107191138A (en) * | 2017-06-29 | 2017-09-22 | 中国石油天然气股份有限公司 | Deepwater composite conduit running tubular column and underwater installation method thereof |
| CN107227746A (en) * | 2017-06-29 | 2017-10-03 | 中国石油天然气股份有限公司 | Seabed mud surface anchoring type deepwater conduit structure and underwater installation method thereof |
| CN107587849A (en) * | 2017-07-12 | 2018-01-16 | 中国石油天然气股份有限公司 | Deep water drilling conduit |
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| Publication number | Publication date |
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| CN108661568A (en) | 2018-10-16 |
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