CN203307807U - Six-wing-structure pile follower for marine riser - Google Patents
Six-wing-structure pile follower for marine riser Download PDFInfo
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- CN203307807U CN203307807U CN2013202405643U CN201320240564U CN203307807U CN 203307807 U CN203307807 U CN 203307807U CN 2013202405643 U CN2013202405643 U CN 2013202405643U CN 201320240564 U CN201320240564 U CN 201320240564U CN 203307807 U CN203307807 U CN 203307807U
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- marine riser
- riser pipe
- inner sleeve
- outer sleeve
- sleeve
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Abstract
The utility model discloses a six-wing-structure pile follower for a marine riser. The pile follower for the marine riser is applied to a marine petroleum exploration and development process. The pile follower comprises a cylindrical outer sleeve and a cylindrical inner sleeve, wherein one end of the outer sleeve is sealed, the other end of the outer sleeve is open, the bottom end of the inner sleeve is fixedly connected with the sealed end of the outer sleeve, the top end of the inner sleeve extends towards the open end of the outer sleeve, a regulated gap is formed between the outer wall of the inner sleeve and the inner wall of the outer sleeve, six supporting wings are arranged in the inner sleeve, and the inner wall of the inner sleeve is supported by the supporting wings. The six-wing-structure pile follower can support the inner wall of the marine riser, can prevent the top of the marine riser from deforming and being damaged in a piling operation, can enlarge the contact area for the pile follower to transmit force to the marine riser, enables hitting force to be transmitted evenly and guarantees piling quality.
Description
Technical field
The utility model relates to a kind of pile follower device, particularly about a kind of six wing structure pile followers for marine riser pipe that are applied to use in the offshore oil exploration development process.
Background technology
At present, in the work progress of oil drilling riser pipe, usually adopt the mode of pile hammer piling that marine riser pipe is hammered into to the expectation degree of depth at sea.For preventing that in the piling process, marine riser pipe top deforms under the pile hammer effect, therefore need riser pipe upper end at sea to add a pile follower, present marine riser pipe pile follower, as shown in Figure 4, only has one deck sleeve, be placed in the top of marine riser pipe, this pile follower can be avoided marine riser pipe distortion to a certain extent, but due to boring, provide support for marine riser pipe inwall, thereby the phenomenon of marine riser pipe top deformation failure also can often occur in piling work; Existing pile cover, because the contact surface of the power of transmission is very little, is difficult to guarantee the concentricity of pile hammer, pile cover and stake, can make the inhomogeneous generation transverse component of capable transmission.Cause piling to produce, also local generation the in marine riser pipe top damaged simultaneously.
In order to improve problems, the utility model proposes a kind of six wing structure pile followers for marine riser pipe, this pile follower device can effectively be avoided the problems referred to above, guarantee that piling work is not to marine riser pipe top injury, guarantee simultaneously marine riser pipe piling sag, make piling work carry out smoothly.
The utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of can providing support to the inwall of marine riser pipe, prevents that six wing structures for marine riser pipe of marine riser pipe top deformation failure when piling work from playing the machine cap.
Another purpose of the present utility model is to provide a kind of concentricity that can guarantee pile hammer, machine cap and marine riser pipe, increase the contact area of transmission power, reduce stressed bias, reduce transverse component, make capable transmission even, marine riser pipe pours evenly, guarantees the six wing structure pile followers for marine riser pipe of piling quality.
For achieving the above object, the utility model proposes a kind of six wing structure pile followers for marine riser pipe, wherein, described pile follower comprises and is outer sleeve cylindraceous and inner sleeve, one end sealing of described outer sleeve, its other end is open, the bottom of described inner sleeve and the blind end of described outer sleeve are affixed, extend towards the open end of described outer sleeve on the top of described inner sleeve, the gap that has regulation between the outer wall of described inner sleeve and the inwall of described outer sleeve, in described inner sleeve, be provided with six braced wings, described braced wing is supported in the inwall of described inner sleeve.
Six wing structure pile followers for marine riser pipe as above, wherein, described six braced wings are radial uniform along the central axis of described inner sleeve.
Six wing structure pile followers for marine riser pipe as above, wherein, the internal diameter of described outer sleeve is than the large 2mm to 5mm of the external diameter of described marine riser pipe, and the external diameter of described inner sleeve is than the little 2mm to 5mm of the internal diameter of described marine riser pipe.
Six wing structure pile followers for marine riser pipe as above, wherein, the length of described outer sleeve is 0.75 meter.
Six wing structure pile followers for marine riser pipe as above, wherein, the wall thickness of described outer sleeve and the wall thickness of described inner sleeve are 1.5 times of wall thickness of described marine riser pipe.
Six wing structure pile followers for marine riser pipe as above, wherein, the thickness of described braced wing equals the pipe thickness of described marine riser pipe.
Six wing structure pile followers for marine riser pipe as above, wherein, the open end of described outer sleeve is outward extended with the hole enlargement mouth.
Compared with prior art, the utlity model has following characteristics and advantage:
1, the utility model is provided with six wing braced structuress and provides support for the inwall of marine riser pipe, when stressed, provide horizontal reaction of bearing for marine riser pipe, prevent when piling work the marine riser pipe top destruction that deforms, increased the application life of marine riser pipe.
2, six wing braced structuress of the utility model setting can increase the contact surface of pile follower to marine riser pipe transmission power, make the transmission of hitting power more even, reduce stressed bias, reduce transverse component, and then the phenomenon eccentric, marine riser pipe run-off the straight that prevents from driving piles when piling work, the assurance piling work is carried out smoothly, guarantees piling quality.
3, six braced wings in the utility model are radial along the central axis of inner sleeve and are uniformly distributed, every two adjacent braced wings become 60 degree to arrange, can further make the distribution of hitting power of its cross binding power provided and transmission more even, further avoid the phenomenon of marine riser pipe deformation failure and run-off the straight.
4, the utlity model has the inside and outside sleeve structure, by the accurate riser pipe on positioning submarine in the gap of stipulating between inside and outside sleeve, guarantee the concentricity of pile hammer, pile follower and marine riser pipe, increase the contact area of transmission power, reduce stressed bias, reduce transverse component, make capable transmission even, guarantee piling quality.
5, the utility model only adopts six wings to support, and processing is simple, can save processing cost and expense.
The accompanying drawing explanation
Accompanying drawing described here is only for task of explanation, and is not intended to limit by any way the utility model scope of disclosure.In addition, the shape of each parts in figure and proportional sizes etc. are only schematically, for helping understanding of the present utility model, are not shape and the proportional sizes that specifically limits each parts of the utility model.Those skilled in the art, under instruction of the present utility model, can select various possible shapes and proportional sizes to implement the utility model as the case may be.
Fig. 1 is the structural representation of the utility model for six wing structure pile followers of marine riser pipe;
Fig. 2 is the front view of the utility model for six wing structure pile followers of marine riser pipe;
Fig. 3 is the upward view of the utility model for six wing structure pile followers of marine riser pipe;
Fig. 4 is the structural representation of existing marine riser pipe pile follower.
Description of reference numerals:
The 1-outer sleeve; The 2-inner sleeve; The 3-braced wing; 4-hole enlargement mouth; The 5-blind end; The gap of 6-regulation.
The specific embodiment
With the description of the utility model specific embodiment, can more be well understood to details of the present utility model by reference to the accompanying drawings.But the specific embodiment of the present utility model described here,, be used to explaining the purpose of this utility model, be only to restriction of the present utility model and can not be understood as by any way.Under instruction of the present utility model, the technician can conceive based on possible distortion arbitrarily of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Please refer to Fig. 1 to Fig. 2, Fig. 1, Fig. 2 are respectively structural representation, the front view of the utility model for six wing structure pile followers of marine riser pipe.As shown in Figure 1, 2, the six wing structure pile followers for marine riser pipe that the utility model proposes comprise outer sleeve 1 and inner sleeve 2, outer sleeve 1 and inner sleeve 2 are cylindric, wherein, the one end sealing other end of outer sleeve 1 is open, the external diameter of inner sleeve 2 is less than the internal diameter of outer sleeve 1 and is arranged in outer sleeve 1, and the bottom of inner sleeve 2 is fixedly connected with the blind end 5 of outer sleeve 1, and extend the open end of sleeve 1 outward on the top of inner sleeve 2.The gap 6 that has regulation between the inwall of the outer wall of inner sleeve 2 and outer sleeve 1, the width in the gap 6 of regulation is slightly larger than the thickness of the tube wall of marine riser pipe, thereby allows marine riser pipe freely to insert or extract pile follower.In inner sleeve 2, be provided with six braced wings 3, braced wing 3 is supported in the inwall of inner sleeve 2.Braced wing 3 can be fixed in inner sleeve 2 by welding or other modes.When marine riser pipe is carried out to piling work, by what the utility model proposes, be sheathed on the top of marine riser pipe for six wing structure pile followers of marine riser pipe, make marine riser pipe dress close in the gap 6 of regulation between inner sleeve 2 and outer sleeve 1.Because the braced wing 3 on six inwalls that are supported in inner sleeve 2 can well support inner sleeve 2, inner sleeve 2 provides support also just can for the inwall of marine riser pipe, like this, inner sleeve 2 can provide for the inwall of marine riser pipe horizontal reaction of bearing when stressed, can prevent effectively that marine riser pipe generation lateral deformation from destroying, and then increase the application life of marine riser pipe; Simultaneously, the six wing structure pile followers for marine riser pipe that the utility model proposes also can increase the contact surface that transmits power to marine riser pipe, make the transmission of hitting power more even, reduce stressed bias, reduce transverse component, and then it is eccentric to prevent piling, the phenomenon of marine riser pipe run-off the straight, assurance piling quality and piling work can be carried out smoothly.In addition, due to the gap 6 of regulation between outer sleeve 1 and inner sleeve 2 can more accurate positioning submarine on riser pipe, so just, can guarantee the concentricity of pile hammer, pile follower and marine riser pipe, increase the contact area of transmission power, reduce stressed bias, reduce transverse component, make capable transmission even, guarantee piling quality.
Please refer to Fig. 3, Fig. 3 is the upward view of the utility model for six wing structure pile followers of marine riser pipe.As shown in Figure 3, in the present embodiment, six braced wings 3 are radial uniform along the central axis of inner sleeve 2.One end of braced wing 3 is arranged at the central axis of inner sleeve 2, and the other end of braced wing 3 is supported in the inwall of inner sleeve 2, and the angle between two adjacent braced wings 3 is 60 degree.Like this because the angle between two adjacent braced wings 3 is 60 degree, axle center forms an equilateral triangle structure with the line that is supported in two adjacent supports points on inner sleeve 2 inwalls, simultaneously, the line that is positioned at six strong points on inner sleeve 2 inwalls also just forms a regular hexagon structure, this braced structures is more stable, more be conducive to being uniformly distributed of hitting power, its protective effect for marine riser pipe is also just better, further reduced piling bias and made marine riser pipe deformation failure, further avoid the phenomenon of marine riser pipe run-off the straight, increased the application life of marine riser pipe, the assurance sea is beaten machine operation and is carried out smoothly, guarantee piling quality.And the utility model only adopts six braced wings 3 to be supported in the inwall of inner sleeve 2, its processing is simple, can save processing cost and expense.
Further, the internal diameter of outer sleeve 1 is than the large 2mm～5mm of the external diameter of marine riser pipe, the external diameter of inner sleeve 2 is than the little 2mm～5mm of the internal diameter of marine riser pipe, marine riser pipe is better filled and close within the gap 6 of regulation, guarantee again the concentricity of pile follower and marine riser pipe simultaneously.
Further, the length of outer sleeve 1 is 0.75m.
In the present embodiment, the wall thickness of outer sleeve 1 and inner sleeve 2 is 1.5 times of thickness of the tube wall of marine riser pipe, and the thickness of braced wing 3 equals the thickness of the tube wall of marine riser pipe.Like this, because outer sleeve 1 and inner sleeve 2 have enough thickness, make when the strike that is subject to pile hammer, the owned enough intensity of pile follower can effectively prevent the damage of himself, simultaneously can make again its transmission to the impact force of pile hammer more even, make the marine riser pipe can be stressed more uniformly, and then uniform and stable while pouring seabed.
Further, as shown in Figure 2, the open end of outer sleeve 1 is outward extended with hole enlargement mouth 4, be bell-mouthed shape, can, so that the six wing structure pile followers for marine riser pipe that the utility model proposes more easily overlap the top of riser pipe at sea, greatly facilitate on-the-spot staff like this.In the present embodiment, the external diameter of hole enlargement mouth 4 is than the large 100mm of the external diameter of marine riser pipe.
In above-described embodiment, can also with being connected, other variation be arranged in structure, for example, marine riser pipe size can change, every based on the changes and improvements on technical solutions of the utility model, should not get rid of outside protection domain of the present utility model.Simultaneously, the utility model also can be widely used in the piling work of offshore petroleum drilling and other China Democratic National Construction Association's engineerings.
Detailed explanation for the respective embodiments described above, its purpose only is the utility model is made an explanation, so that can understand better the utility model, but, it is to restriction of the present utility model that these descriptions can not be construed to any reason, particularly, each feature of describing in different embodiments is any combination mutually also, thereby form other embodiments, except clear and definite opposite description is arranged, these features should be understood to can be applied in any one embodiment, and also not only are confined to described embodiment.
Claims (7)
1. six wing structure pile followers for marine riser pipe, it is characterized in that, described pile follower comprises and is outer sleeve cylindraceous and inner sleeve, one end sealing of described outer sleeve, its other end is open, the bottom of described inner sleeve and the blind end of described outer sleeve are affixed, extend towards the open end of described outer sleeve on the top of described inner sleeve, the gap that has regulation between the outer wall of described inner sleeve and the inwall of described outer sleeve, in described inner sleeve, be provided with six braced wings, described braced wing is supported in the inwall of described inner sleeve.
2. six wing structure pile followers for marine riser pipe as claimed in claim 1, is characterized in that, described six braced wings are radial uniform along the central axis of described inner sleeve.
3. six wing structure pile followers for marine riser pipe as claimed in claim 2, it is characterized in that, the internal diameter of described outer sleeve is than the large 2mm to 5mm of the external diameter of described marine riser pipe, and the external diameter of described inner sleeve is than the little 2mm to 5mm of the internal diameter of described marine riser pipe.
4. six wing structure pile followers for marine riser pipe as claimed in claim 1, is characterized in that, the length of described outer sleeve is 0.75 meter.
5. six wing structure pile followers for marine riser pipe as claimed in claim 1, is characterized in that, the wall thickness of described outer sleeve and the wall thickness of described inner sleeve are 1.5 times of wall thickness of described marine riser pipe.
6. six wing structure pile followers for marine riser pipe as described as any one in claim 1 to 5, is characterized in that, the thickness of described braced wing equals the pipe thickness of described marine riser pipe.
7. six wing structure pile followers for marine riser pipe as described as any one in claim 1 to 5, is characterized in that, the open end of described outer sleeve is outward extended with the hole enlargement mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202405643U CN203307807U (en) | 2013-05-07 | 2013-05-07 | Six-wing-structure pile follower for marine riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202405643U CN203307807U (en) | 2013-05-07 | 2013-05-07 | Six-wing-structure pile follower for marine riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203307807U true CN203307807U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202405643U Expired - Lifetime CN203307807U (en) | 2013-05-07 | 2013-05-07 | Six-wing-structure pile follower for marine riser |
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| CN (1) | CN203307807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225302A (en) * | 2013-05-07 | 2013-07-31 | 中国石油大学(北京) | Six-wing piling cap for marine riser |
| CN116289943A (en) * | 2023-05-10 | 2023-06-23 | 西南石油大学 | Pile driving cap structure of marine drilling platform riser and pile driving method thereof |
-
2013
- 2013-05-07 CN CN2013202405643U patent/CN203307807U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225302A (en) * | 2013-05-07 | 2013-07-31 | 中国石油大学(北京) | Six-wing piling cap for marine riser |
| CN103225302B (en) * | 2013-05-07 | 2015-05-27 | 中国石油大学(北京) | Six-wing piling cap for marine riser |
| CN116289943A (en) * | 2023-05-10 | 2023-06-23 | 西南石油大学 | Pile driving cap structure of marine drilling platform riser and pile driving method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20150527 |
|
| RGAV | Abandon patent right to avoid regrant |