CN204200100U - For the inner sleeve of riser pipe - Google Patents
For the inner sleeve of riser pipe Download PDFInfo
- Publication number
- CN204200100U CN204200100U CN201420329276.XU CN201420329276U CN204200100U CN 204200100 U CN204200100 U CN 204200100U CN 201420329276 U CN201420329276 U CN 201420329276U CN 204200100 U CN204200100 U CN 204200100U
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- CN
- China
- Prior art keywords
- inner sleeve
- riser pipe
- shaped steel
- sleeve body
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a kind of inner sleeve for riser pipe, and it comprises inner sleeve body, and some shaped steel compositions be disposed on vertically on described inner sleeve body outer wall; Shaped steel composition described in each to be fastenedly connected in described inner sleeve body outer wall circumference and circumferentially the shaped steel of array distribution is formed by some.The utility model becomes circumference array to weld six shaped steel along the outer wall circumference of inner sleeve body, the inwall of shaped steel and outer layer sleeve or outermost layer riser pipe forms the uniform face of load diatibution and contacts, utilize the spoke effect of shaped steel, effectively strengthen rigidity and the anti-bending strength of riser pipe combination, thus the ability that ice carries is born in the combination of raising riser pipe, when not increasing flow chart and activity duration, greatly strengthen the anti-ice stability of riser pipe combination.Shaped steel itself has superior second moment of area characteristic, fundamentally improves the second moment of area of riser pipe, and its flexing resistance is also greatly enhanced.
Description
Technical field
The utility model relates to a kind of inner sleeve, particularly about a kind of inner sleeve for riser pipe.
Background technology
At sea in petroleum exploration and development process, riser pipe is one of most important parts, very important effect is played to setting up drilling channel and supporting wellhead equipment, conventional riser pipe only can realize the function set up passage and support wellhead equipment, and its anti-bending strength depends on the material of riser pipe itself, diameter and wall thickness, therefore the limited strength between riser pipe and inner. layers sleeve pipe, the overall flexing resistance of its combination and anti-ice also can not get ensureing.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of inner sleeve for riser pipe that can improve riser pipe bending resistance and anti-ice performance.
For achieving the above object, the utility model takes following technical scheme: a kind of inner sleeve for riser pipe, is characterized in that, it comprises inner sleeve body, and some shaped steel compositions be disposed on vertically on described inner sleeve body outer wall; Shaped steel composition described in each to be fastenedly connected in described inner sleeve body outer wall circumference and circumferentially the shaped steel of array distribution is formed by some.
Described shaped steel consists of the i iron be made up of six i iron and forms, and two wing plates of i iron described in each are all in arc-shaped.
I iron described in each is all fastenedly connected by the outer wall of welding with described inner sleeve body.
Described in each, the length of i iron is 7m ~ 16m.
More than sea level, the axially spaced-apart of I steel composite described in each is 3m ~ 8m; B.s.l., described in each, the axially spaced-apart of i iron composition is 4m ~ 8m.
The utility model is owing to taking above technical scheme, it has the following advantages: due to the utility model along inner sleeve body outer wall circumference become circumference array weld six i iron, inner sleeve is coaxially plugged in outer layer sleeve or outermost layer riser pipe, the inwall of i iron and outer layer sleeve or outermost layer riser pipe forms the uniform face of load diatibution and contacts, utilize the spoke effect of the i iron between inner sleeve body and outer layer sleeve or outermost layer riser pipe, effectively strengthen rigidity and the anti-bending strength of riser pipe combination, thus the ability that ice carries is born in the combination of raising riser pipe, when not increasing flow chart and activity duration, greatly strengthen the anti-ice stability of riser pipe combination.In addition, because i iron itself has superior second moment of area characteristic, therefore fundamentally improve the second moment of area of riser pipe, its flexing resistance is also greatly enhanced.
Accompanying drawing explanation
Fig. 1 is the integrally-built schematic front view of the utility model
Fig. 2 is the integrally-built schematic top plan view of the utility model
Fig. 3 is the integrally-built 3 D stereo schematic diagram of the utility model
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in FIG. 1 to 3, the utility model comprises a cylindrical inner sleeve body 1, the outer wall circumference of inner sleeve body 1 circumferentially array is fastenedly connected six i iron 20, to form an i iron composition 2, two wing plates 200,201 of i iron are arc-shaped, to ensure that each i iron 20 is fitted completely with the outer wall of inner sleeve body 1 and the inwall of outer layer sleeve 3 or outermost layer riser pipe 4.
On the axial direction of inner sleeve body 1 outer wall, the some i iron compositions 2 of spaced set, coordinate the utility model with outer layer sleeve 3 or outermost layer riser pipe 4 coaxial transition.
In the above-described embodiments, each i iron 20 is fastenedly connected by welding and inner sleeve body 1.
In the above-described embodiments, described in each, the length of i iron 20 is 7m ~ 16m.
In the above-described embodiments, more than sea level, each group I steel composite 2 be spaced apart 3m ~ 8m; B.s.l., each group i iron composition 2 be spaced apart 4m ~ 8m.
The various embodiments described above are only for illustration of the utility model; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (5)
1. for an inner sleeve for riser pipe, it is characterized in that, it comprises inner sleeve body, and some shaped steel compositions be disposed on vertically on described inner sleeve body outer wall; Shaped steel composition described in each to be fastenedly connected in described inner sleeve body outer wall circumference and circumferentially the shaped steel of array distribution is formed by some; Described shaped steel consists of the i iron be made up of six i iron and forms, and two wing plates of i iron described in each are all in arc-shaped.
2. as claimed in claim 1 for the inner sleeve of riser pipe, it is characterized in that, i iron described in each is all fastenedly connected by the outer wall of welding with described inner sleeve body.
3., as claimed in claim 1 or 2 for the inner sleeve of riser pipe, it is characterized in that, described in each, the length of i iron is 7m ~ 16m.
4., as claimed in claim 1 or 2 for the inner sleeve of riser pipe, it is characterized in that, more than sea level, the axially spaced-apart of I steel composite described in each is 3m ~ 8m; B.s.l., described in each, the axially spaced-apart of i iron composition is 4m ~ 8m.
5., as claimed in claim 3 for the inner sleeve of riser pipe, it is characterized in that, more than sea level, the axially spaced-apart of I steel composite described in each is 3m ~ 8m; B.s.l., described in each, the axially spaced-apart of i iron composition is 4m ~ 8m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329276.XU CN204200100U (en) | 2014-06-19 | 2014-06-19 | For the inner sleeve of riser pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329276.XU CN204200100U (en) | 2014-06-19 | 2014-06-19 | For the inner sleeve of riser pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200100U true CN204200100U (en) | 2015-03-11 |
Family
ID=52658069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420329276.XU Active CN204200100U (en) | 2014-06-19 | 2014-06-19 | For the inner sleeve of riser pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060945A (en) * | 2014-06-19 | 2014-09-24 | 中国海洋石油总公司 | Inner sleeve pipe for riser pipe |
-
2014
- 2014-06-19 CN CN201420329276.XU patent/CN204200100U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060945A (en) * | 2014-06-19 | 2014-09-24 | 中国海洋石油总公司 | Inner sleeve pipe for riser pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: China University of Petroleum (Beijing) Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation Co-patentee before: China University of Petroleum (Beijing) |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191220 Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC research institute limited liability company Patentee before: China Offshore Oil Group Co., Ltd. Co-patentee before: China University of Petroleum (Beijing) |