CN201437693U - Centralizing device - Google Patents
Centralizing device Download PDFInfo
- Publication number
- CN201437693U CN201437693U CN200920109297XU CN200920109297U CN201437693U CN 201437693 U CN201437693 U CN 201437693U CN 200920109297X U CN200920109297X U CN 200920109297XU CN 200920109297 U CN200920109297 U CN 200920109297U CN 201437693 U CN201437693 U CN 201437693U
- Authority
- CN
- China
- Prior art keywords
- riser pipe
- stiffened panel
- sleeve
- angle side
- welding
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a centralizing device, which comprises a cylindrical sleeve and a plurality of identical right-angle triangular reinforced plates, wherein the same right-angle edge of each reinforced plate is uniformly welded at an equal distance to each other on the outer wall of the sleeve; and a riser pipe passes through and is welded on the sleeve, and the right-angle edge of the reinforced plate for non-welding is leveled to the end surface of the sleeve. The centralizing device has simple structure and good guidance quality and thoroughly solves the problems that the riser pipe below a mud line in the pile driving process on the sea is easy to incline and to bend.
Description
Technical field
The utility model relates to a kind of offshore oil engineering equipment, especially a kind of erection device that is used to set upright the offshore drilling riser pipe.
Background technology
For offshore drilling, the riser pipe drilling equipment that is absolutely necessary, adopt hammer to go into method when driving piles, because the riser pipe slenderness ratio is bigger, lateral stiffness is less, and the part below mud line is easy to run-off the straight, so just makes riser pipe vertically to insert in the earth, cause the riser pipe unbalance stress, may bring difficulty to wellbore construction.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of erection device that riser pipe successfully vertically can be inserted in the earth.
For achieving the above object, the utility model is taked following technical scheme: a kind of erection device, it is characterized in that: it comprises the right-angled triangle stiffened panel that a circular sleeve is identical with polylith, on each described stiffened panel same right-angle side evenly and at intervals along described quill to being welded on the described sleeve outer wall; Riser pipe runs through and is welded on the described sleeve, the right-angle side of non-welding usefulness and described sleeve end face trimming on the described stiffened panel.
The right-angle side length of welding usefulness is identical with the height of described sleeve on the described stiffened panel, and the right-angle side length of non-welding usefulness is 1/3 of described riser pipe diameter on the described stiffened panel, and the thickness of described stiffened panel is identical with described riser pipe wall thickness; The internal diameter of described sleeve is than the big 3～5mm of external diameter of riser pipe.
The right-angle side of non-welding usefulness is up on the described stiffened panel during with the welding of described riser pipe.
Described stiffened panel is 8.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the utility model is owing to be welded on the leg-of-mutton stiffened panel of polylith evenly and at intervals on the outer wall of sleeve, right-angle side on the stiffened panel along quill to welding, again up with the socket end at the right-angle side place of non-welding usefulness on the stiffened panel, form a up big and down small structure, therefore improved the whole lateral stiffness of riser pipe effectively, helped riser pipe and vertically go into mud.2, the utility model is owing to riser pipe being run through and being welded on the sleeve, again in the whole vertical insertion earth that will constitute by riser pipe and the utility model, and make the upper surface of sleeve be positioned at below the mud line, the soil body around stiffened panel and the riser pipe interacts like this, the effect of having played balance, set upright and having led, thus problems such as the following riser pipe of mud line tilts easily in the marine guidance piling process, bending solved.The utility model is simple in structure, and guidance quality is good, has thoroughly solved problems such as the following riser pipe of mud line tilts easily in the marine guidance piling process, bending.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the vertical view of stiffened panel in the utility model
Fig. 3 is the lateral view of stiffened panel in the utility model
Fig. 4 is structural representation of the present utility model for riser pipe inserts
The specific embodiment
Below in conjunction with embodiment, the utility model is described in detail.
Shown in Fig. 1～3, the utility model comprises a circular sleeve 1, and the height of sleeve 1 can be 0.3m, and internal diameter is convenient to the erection welding construction than the big 3～5mm of external diameter of riser pipe.The outer wall periphery of sleeve 1 is welded with the identical stiffened panel of polylith 2 evenly and at intervals, stiffened panel 2 is for having certain thickness modification of right-angled triangle plate, same right-angle side axially the welding of each stiffened panel 2 along sleeve 1, can improve the whole lateral stiffness of riser pipe so effectively, be beneficial to riser pipe and vertically insert in the earth.The right-angle side height of welding usefulness is identical with the height of sleeve 1 on the stiffened panel 2, the right-angle side of non-welding usefulness and sleeve 1 end face trimming on the stiffened panel 2, and the right-angle side length of non-welding usefulness can be 1/3 of riser pipe diameter, the thickness of stiffened panel 2 is not less than the riser pipe wall thickness, to guarantee that stiffened panel 2 has enough rigidity and intensity.In the present embodiment, the internal diameter of sleeve 1, external diameter and highly all be not limited to above-mentioned concrete length, as long as guarantee to be complementary with the actual inside and outside footpath of riser pipe of using, stiffened panel 2 numbers are 8, but also are not limited thereto.The material of sleeve 1 and stiffened panel 2 is identical with riser pipe, and is consistent with riser pipe to guarantee the utility model structural strength.
As shown in Figure 4, when the utility model used, with the right-angle side of non-welding usefulness on the stiffened panel 2 up, the utility model formed a up big and down small upside-down triangle shape structure at this moment.Again riser pipe 3 is run through sleeve 1, and be welded on the sleeve 1, this moment, riser pipe 3 constituted an integral body with the utility model.To hammer into shape in the soil body 4 by the integral body that riser pipe 3 and the utility model constitute, and make upper surface of the present utility model be positioned at mud line below 5, stiffened panel 2 interacts with riser pipe 3 soil body 4 on every side like this, the effect of having played balance, set upright and having led, thus mud line 5 following riser pipes 3 problems such as inclination, bending easily solved in the marine guidance piling process.
In the various embodiments described above, sleeve 1 is not limited to welding with stiffened panel 2, can also adopt the one-body molded alternate manner of Denging, to improvement and the equivalents that individual component is carried out, should not get rid of outside protection domain of the present utility model.
Claims (5)
1. erection device, it is characterized in that: it comprises the right-angled triangle stiffened panel that a circular sleeve is identical with polylith, on each described stiffened panel same right-angle side evenly and at intervals along described quill to being welded on the described sleeve outer wall; Riser pipe runs through and is welded on the described sleeve, the right-angle side of non-welding usefulness and described sleeve end face trimming on the described stiffened panel.
2. a kind of erection device as claimed in claim 1, it is characterized in that: the right-angle side length of welding usefulness is identical with the height of described sleeve on the described stiffened panel, the right-angle side length of non-welding usefulness is 1/3 of described riser pipe diameter on the described stiffened panel, and the thickness of described stiffened panel is identical with described riser pipe wall thickness; The internal diameter of described sleeve is than the big 3～5mm of external diameter of riser pipe.
3. a kind of erection device as claimed in claim 2 is characterized in that: the right-angle side of non-welding usefulness is up on the described stiffened panel during with the welding of described riser pipe.
4. a kind of erection device as claimed in claim 1 is characterized in that: the right-angle side of non-welding usefulness is up on the described stiffened panel during with the welding of described riser pipe.
5. as claim 1 or 2 or 3 or 4 described a kind of erection devices, it is characterized in that: described stiffened panel is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920109297XU CN201437693U (en) | 2009-06-23 | 2009-06-23 | Centralizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920109297XU CN201437693U (en) | 2009-06-23 | 2009-06-23 | Centralizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437693U true CN201437693U (en) | 2010-04-14 |
Family
ID=42399669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920109297XU Expired - Lifetime CN201437693U (en) | 2009-06-23 | 2009-06-23 | Centralizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586451B (en) * | 2009-06-23 | 2012-07-04 | 中国海洋石油总公司 | Erection device |
| CN103410150A (en) * | 2013-07-24 | 2013-11-27 | 中铁大桥局股份有限公司 | Guide structure of guide pipe and underwater concrete pouring method for raking pile and adopting guide structure |
-
2009
- 2009-06-23 CN CN200920109297XU patent/CN201437693U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586451B (en) * | 2009-06-23 | 2012-07-04 | 中国海洋石油总公司 | Erection device |
| CN103410150A (en) * | 2013-07-24 | 2013-11-27 | 中铁大桥局股份有限公司 | Guide structure of guide pipe and underwater concrete pouring method for raking pile and adopting guide structure |
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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: 20100414 Effective date of abandoning: 20090623 |