CN206487418U - Deepwater drilling conduit is with brill support meanss - Google Patents
Deepwater drilling conduit is with brill support meanss Download PDFInfo
- Publication number
- CN206487418U CN206487418U CN201720183169.4U CN201720183169U CN206487418U CN 206487418 U CN206487418 U CN 206487418U CN 201720183169 U CN201720183169 U CN 201720183169U CN 206487418 U CN206487418 U CN 206487418U
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- China
- Prior art keywords
- conduit
- support
- brill
- support component
- inner cylinder
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- Withdrawn - After Issue
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Abstract
A kind of deepwater drilling conduit is claimed with brill support meanss in the utility model, including with brill support component, suspension assembly and support plate；Include inner cylinder, outer barrel and connection top plate with support component is bored；Inner cylinder is enclosed on conduit, can be along conduit slidably, and outer barrel is located at outside inner cylinder, and diameter gradually increases from top to bottom, and outer barrel and inner cylinder are connected by the connection top plate on top.Suspension assembly upper end is fixed on conduit, and lower end is hooked with the connection top plate for boring support component, realizes suspension assembly to the suspention for boring support component.Support plate is fixed near conductor housing, plays a part of hanging conduit.The present apparatus is easy to operate, and conduit can be solved the problems, such as with brill support technology.
Description
Technical field
The utility model is related to ocean deepwater drilling field, and in particular to a kind of deepwater drilling conduit is with brill support meanss.
Background technology
During ocean deepwater drilling, conduit tripping in is played in place and after being connected with underwater well head, preventer and marine riser
Structural support effect.Conduit is typically using tripping in after directly spraying tripping in and first drilling and two ways of cementing the well is installed to seabed mud
The following design attitude of line, does not glance off during tripping in and just can guarantee that good tripping in and support effect.As the depth of water is continuous
Increase and the raising of marine environmental protection requirement, subsea blowout preventer volume and weight have ever-increasing trend.Weigh hundreds of tons
Subsea blowout preventer and the Action of Gravity Field of suspension sleeve string conduit is born huge vertical load effect；Simultaneously as water proof
Pipe upper end is connected with drill ship or drilling platforms, under the dynamic action of the marine environment load such as wind, wave, stream, and marine riser is produced
Complicated dynamic action constantly will be delivered on conduit, causes conduit to bear huge transverse bending moment effect.In these load
In the presence of, conduit has sinking and inclined trend.In the case where marine environment especially severe, catheter design is not reasonable,
It is particularly easy to cause conduit to occur sedimentation and tilt, marine riser will be caused to fracture when serious, well head is destroyed, and not only causes economic damage
Lose, and huge disaster can be formed.These situations in the main deepwater drilling operation area such as U.S. Mexico gulf, Brazilian basin
There is generation.
In order to prevent conduit from sinking and tilt, presently mainly using the external diameter and wall thickness, additional mud line pad of increase conduit
Plate, the sinking and inclination for controlling using specific anti-settling instrument conduit, but all there is certain technological deficiency：Excessive increase
The external diameter and wall thickness of conduit, will result directly in conduit and increase with surface pipe annular space size, be unfavorable for well cementation and drillng operation；Increase
Plus after mud line backing plate, be easily caused mud line backing plate side and wash away, cause conduit to tilt more serious.Using some underwater wells
The anti-unstability device of mouth can prevent conduit from sinking, but be confined to prevent from after conduit is installed in place, and be confined to spray
Tripping in mode is penetrated, is not suitable for drilling, tripping in and the mode cemented the well carried out in hard formation；And this kind of anti-unstability device is located at and led
The top of pipe, with conduit being fixedly connected using screw thread or welding manner, it is impossible to play a part of with boring support.Therefore, design
One kind is not only played a supporting role during conduit tripping in, and plays bigger supporting role afterwards in place in conduit tripping in
Conduit can greatly improve the stability and security of deepwater drilling conduit with support meanss are bored, and be prevented effectively from accident.
The content of the invention
The purpose of this utility model is to provide a kind of device easy to operate for solving the problems, such as conduit with brill support technology.
The utility model proposes deepwater drilling conduit include with support meanss are bored with boring support component, suspension assembly and branch
Support plate.
It is described to include inner cylinder, outer barrel and connection top plate with brill support component；The inner cylinder is enclosed on conduit, can be along conduit
Slidably, outer barrel is located at outside inner cylinder, and diameter gradually increases from top to bottom, the connection top plate that outer barrel and inner cylinder pass through top
Link together, play a part of support conduit with brill support component and be attached to supravasal weight.
The suspension assembly upper end is fixed on conduit, and lower end is hooked with the connection top plate for boring support component, realizes suspension
Component is to the suspention for boring support component.
The support plate is fixed near conductor housing, when conduit tripping in place when, the support plate be seated at bore support component
On the suspension assembly at top, play a part of hanging conduit.
Further, with having uniform osculum on the outer barrel for boring support component, for discharging skew wall outer barrel and straight wall inner cylinder
Between seawater and mud.
Further, it is the wedge angle with certain slope with the bottom for the inside and outside cylinder for boring support component, mitigates inner/outer tube end
Portion's resistance, is easy in the shallow soft soil of device tripping in seabed.
Further, it is more than skew wall outer barrel with the inner cylinder design length for boring support component, prevents it from sinking playing support conduit
While drop, moment of flexure resistivity of the conduit under action of lateral load can be preferably improved.
Of the present utility model is skew wall tubular with supporting construction outer barrel is bored, and its lower ending opening diameter is slightly larger than top junction
Diameter, barrel has certain slope, and this structure can more effectively play supporting role.
Further, the suspension assembly is a kind of preferably realizes that structure is to include suspention supporting hinges, suspension disc, suspention chain
And hanged hook, suspend supporting hinges in midair and suspension disc is locked on conduit, suspension disc circumferentially connects many suspention chains, multiple
Hanged hook is circumferentially arranged on the connection top plate for boring support component and in suspension disc, and suspention chain corresponds hook with hanged hook
Hang.The structure can freely set it in supravasal installation site according to the depth of setting of the utility model device；Meanwhile,
In the case of formation factor, if the utility model device can not descend design attitude, hinge and suspension disc can be by machines under water
Device people operation is released, and is conduit tripping in reserved location in place.
Further, the suspension assembly has two-stage, and two-layer configuration is identical, and two-stage is separated by a distance to be fixed on conduit
On, the function of secondary structure belongs to safe additional structure as primary structure.
The beneficial effects of the utility model are：
1. of the present utility model can easily realize and provided with brill along conduit slidably with brill supporting construction inner cylinder
Conduit support.
2. it is of the present utility model with supporting construction inner cylinder design length is bored more than skew wall outer barrel, prevented playing support conduit
While it is settled, moment of flexure resistivity of the conduit under action of lateral load can be preferably improved.
3. of the present utility model is that skew wall tubular is omited with support meanss, its lower ending opening diameter is bored with supporting construction outer barrel is bored
More than top junction diameter, barrel has certain slope, and this structure can more effectively play supporting role.
4. of the present utility model is that skew wall tubular is opened with the top certain position for boring support meanss with supporting construction outer barrel is bored
There is a number of, uniform circular hole, for discharging seawater and mud between skew wall outer barrel and straight wall inner cylinder.
5. inner/outer tube bottom of the present utility model barrel has the oblique angle of certain slope, mitigate inner/outer tube end resistance, just
In the shallow soft soil of device tripping in seabed.
6. one or the two grades of hinges and suspension disc of suspended structure of the present utility model, can be according under the utility model device
Enter depth and it is freely set in supravasal installation site；Meanwhile, in the case of formation factor, if the utility model device is not
Design attitude can be descended, then hinge and suspension disc can be operated by underwater robot releases, and is conduit tripping in reserved location in place.
7. of the present utility model can successively install according to old process on platform with boring supporting construction, suspended structure,
Simple and fast, does not result in the consumption of drilling time.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of the utility model device and conduit；
Fig. 2 is the utility model device with brill support component structural representation；
Fig. 3 is the utility model device with the supported and suspended modular construction schematic diagram of brill.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
Referring to Fig. 1, Fig. 2 and Fig. 3, deepwater drilling conduit with bore support meanss include with bore support component, suspension assembly and
Support plate 4.
It is divided into three parts again with support component is bored, a part is the straight wall inner cylinder 16 with catheter contact, and a part is top
Skew wall outer barrel 14 with osculum 13, some is the top connection top plate 11 for connecting inner cylinder and outer barrel.Inner cylinder and outer
The cylinder overwhelming majority is goed deep into the weak soil below the mud line of seabed, plays support conduit and is attached to supravasal weight.Connection top
Plate 11 is structure thicker, and One function is the inside and outside cylinder of connection, and another function is the hanged hook not waited for the quantity welded thereon
Structural plane is provided, to coordinate during support meanss tripping in by suspending chain in midair with suspension assembly, suspention supporting construction is played
Effect.
The structure of suspension assembly is made up of three parts, and a part is one-level suspention supporting hinges 24, one-level suspension disc 23, one
Level suspention chain 25 and upper and lower hanged hook 27 and 12, are fixed on conduit bottom certain position, one-level is hanged by suspending supporting hinges 24 in midair
Hanging scaffold 23 circumferentially connects many one-level suspention chains 25, and multiple upper and lower hanged hooks 27 and 12 are in I and II suspension disc 23,21
With circumferentially arranged on the connection top plate 11 with brill support component, I and II suspention chain and hanged hook one-to-one corresponding hook, by one
Level suspension disc 23 is suspended in midair of the present utility model with brill support component by the one-level suspention chain 25 of steel.Another part is two grades of suspentions
Supporting hinges 22, two grades of suspension discs 21, two grades of suspention chains 26 and upper and lower hanged hook 27 and 12, its function and one-level suspention support
Hinge belongs to safe additional structure as suspension disc.Part III is to be located at the support plate 4 near conductor housing, the support plate 4
By welding or other connected modes connected together with conduit, when conduit tripping in place when, the support plate be seated at bore support tie
In suspended structure at the top of structure, play a part of hanging conduit.
It is enclosed on the straight wall inner cylinder 16 for boring support component on conduit 3, can be along conduit slidably, skew wall outer barrel 14 is located at
Outside straight wall inner cylinder 16, diameter gradually increases from top to bottom, and barrel has certain slope, can more effectively play support
Effect.The bottom of inside and outside cylinder is the wedge angle 17 and 15 with certain slope, mitigates inner/outer tube end resistance, is easy under device
Enter in the shallow soft soil of seabed.The design length of straight wall inner cylinder 16 is more than skew wall outer barrel 14, prevents what it from settling playing support conduit
Meanwhile, it can preferably improve moment of flexure resistivity of the conduit under action of lateral load.
Illustrated further below in deepwater drilling injection downcomer mode as an example：
The utility model device is transported on deepwater drilling platform.Before deepwater drilling injection tripping in conduit 3, in conduit 3
The single upper one-level suspention supporting hinges 24 and one-level suspension disc 23 for installing one-level suspension assembly of the 2nd conduit of inverse, then
The two grades of suspention supporting hinges 22 and two grades of suspension discs 21 of two grades of suspension assemblies are installed.Install and lock two-stage suspention support
After hinge, connect flow connecting conduit 3 according to conventional manifold and make it be placed through platform moon pool position with boring support component
Inner cylinder 16, when one-level suspend in midair supporting hinges distance from bottom with bore supporting construction 11 about 30-50cm of top plate when, use 16 groups
It is upper on lower hanged hook 12 and one or two grades of suspention support hanging scaffolds 23 and 21 on one or two grades of suspention connection top plates 11 of chain 25 and 26
Hanged hook 27, thus with one-level hanging the utility model device with the outer barrel 14 and inner cylinder 16 for boring supporting construction by steel chain
Hanging scaffold 23 and two grades of suspension discs 21 are chained up, when transferring conduit 3 and the utility model device, by locking onto on conduit 3
Suspension suspention is with brill support component.The single position away from conductor housing 2m of last root conduit of conduit 3 by welding or
Other connected modes install support plate 4, are combined together support plate 4 and conduit 3.Then, according under conventional deepwater drilling
Conduit flow is put to transfer to the conduit 3 for being connected with the present apparatus near the mud line of seabed.
The suspention supporting hinges 24 of one-level suspension assembly and the suspention branch of two grades of suspension assemblies are unlocked by underwater robot
Support hinge 22, while removing the firsts and seconds suspention chain 25 and 26 of link.This sample device can be to be connect by own wt
Contact seabed and gradually sink, conduit 3 now departs from the present apparatus 2, can be in the way of routinely injection downcomer
Initiating task flow.During conduit 2 is by injection tripping in, the present apparatus in the presence of deadweight with the automatic tripping in of conduit, under
Structural support is provided with brill for conduit during entering, due to the aerial drainage circular hole being provided with the outer barrel 14 of the present apparatus shown in 8 accompanying drawings 2
13, the seawater and mud stockpiled during device tripping between inner cylinder 16 and outer barrel 14 can be automatically drained out, reduce this
The tripping in resistance of device.Meanwhile, the inner cylinder 16 of the present apparatus and the bottom of outer barrel 14 are the horn structure with certain slope
17 and 15, it can preferably reduce the tripping in resistance of the present apparatus.
In the present apparatus and conduit after the tripping in place of seabed, 3, conduit is provided in brill support component by support plate 4
Support on top plate 11.So, this support means for creeping into automatic tripping in conduit 3 are not only provided during tripping in for conduit
Structural support and guiding, and vertical and cross-brace well is provided for conduit and subsequent casings afterwards in place in tripping in, it is full
The stability requirement of sufficient conduit, it is ensured that it does not sink or tilted, so as to ensure that the safety of deepwater drilling operation.
Many details are elaborated in above description in order to fully understand the utility model, still, this practicality is new
Type can also be different from mode described here to implement using other, it is thus impossible to be interpreted as protecting model to the utility model
The limitation enclosed.Other changes carried out according to the utility model, fall within the utility model protection domain.
Claims (6)
1. deepwater drilling conduit is with brill support meanss, including with brill support component, suspension assembly and support plate；It is characterized in that：
It is described to include inner cylinder, outer barrel and connection top plate with brill support component；The inner cylinder is enclosed on conduit, can be free along conduit
Slide, outer barrel is located at outside inner cylinder, and diameter gradually increases from top to bottom, outer barrel and inner cylinder are connected by the connection top plate on top
Together, play a part of support conduit with brill support component and be attached to supravasal weight；
The suspension assembly upper end is fixed on conduit, and lower end is hooked with the connection top plate for boring support component, realizes suspension assembly
To with the suspention for boring support component；
The support plate is fixed near conductor housing, when conduit tripping in place when, the support plate be seated at bore support component at the top of
Suspension assembly on, play a part of hang conduit.
2. deepwater drilling conduit according to claim 1 is with brill support meanss, it is characterised in that：It is described with bore support component
Outer barrel on have uniform osculum.
3. deepwater drilling conduit according to claim 1 is with brill support meanss, it is characterised in that：It is described with bore support component
The bottom of inside and outside cylinder be the wedge angle with certain slope.
4. deepwater drilling conduit according to claim 1 is with brill support meanss, it is characterised in that：It is described with bore support component
Inner cylinder design length be more than outer barrel.
5. the deepwater drilling conduit according to claim 1,2,3 or 4 is with brill support meanss, it is characterised in that：The suspension
Component includes suspention supporting hinges, suspension disc, suspention chain and hanged hook, and suspension disc is locked in conduit by suspention supporting hinges
On, suspension disc circumferentially connects many suspention chains, and multiple hanged hooks are on the connection top plate for boring support component and in suspension disc
Circumferentially arranged, suspention chain is corresponded with hanged hook and hooked.
6. deepwater drilling conduit according to claim 5 is with brill support meanss, it is characterised in that：The suspension assembly has two
Level, two-layer configuration is identical, and two-stage is separated by a distance to be fixed on conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720183169.4U CN206487418U (en) | 2017-02-24 | 2017-02-24 | Deepwater drilling conduit is with brill support meanss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720183169.4U CN206487418U (en) | 2017-02-24 | 2017-02-24 | Deepwater drilling conduit is with brill support meanss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206487418U true CN206487418U (en) | 2017-09-12 |
Family
ID=59763223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720183169.4U Withdrawn - After Issue CN206487418U (en) | 2017-02-24 | 2017-02-24 | Deepwater drilling conduit is with brill support meanss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206487418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639896A (en) * | 2017-02-24 | 2017-05-10 | 重庆科技学院 | Deep-water drilling guide pipe drilling supporting device and drilling-in parameter design method |
| CN107859504A (en) * | 2017-10-24 | 2018-03-30 | 中国石油大学(华东) | A kind of high-mechanic performance conduit suitable for deep water gas hydrates pilot production |
-
2017
- 2017-02-24 CN CN201720183169.4U patent/CN206487418U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639896A (en) * | 2017-02-24 | 2017-05-10 | 重庆科技学院 | Deep-water drilling guide pipe drilling supporting device and drilling-in parameter design method |
| CN106639896B (en) * | 2017-02-24 | 2018-08-10 | 重庆科技学院 | Deepwater drilling conduit is with brill support device and tripping in Parameters design |
| CN107859504A (en) * | 2017-10-24 | 2018-03-30 | 中国石油大学(华东) | A kind of high-mechanic performance conduit suitable for deep water gas hydrates pilot production |
| CN107859504B (en) * | 2017-10-24 | 2019-02-01 | 中国石油大学(华东) | A kind of high-mechanic performance conduit suitable for deep water gas hydrates pilot production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170912 Effective date of abandoning: 20180810 |
|
| AV01 | Patent right actively abandoned |