CN104329044A - Free standing type vertical pipe bottom connecting structure - Google Patents
Free standing type vertical pipe bottom connecting structure Download PDFInfo
- Publication number
- CN104329044A CN104329044A CN201410528353.9A CN201410528353A CN104329044A CN 104329044 A CN104329044 A CN 104329044A CN 201410528353 A CN201410528353 A CN 201410528353A CN 104329044 A CN104329044 A CN 104329044A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- horizontal support
- crossbeam
- main frame
- flange
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
- E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
Abstract
The invention discloses a free standing type vertical pipe bottom connecting structure, which comprises a main framework and a technical pipeline, wherein the main framework comprises four upright posts, the upright posts are in vertical and parallel arrangement, the top ends and the bottom ends of the four upright posts are in end-to-end connection through first horizontal supporters, a first support steel plate is arranged on the upper surface of the main framework, a second support steel plate is arranged on the lower surface of the main framework, a first flange is arranged on the first support steel plate, the second support steel plate is connected with a plug pin joint, in addition, the plug pin joint downwards extends, the two adjacent upright posts are respectively connected with inclined supporters and first cross beams, each inclined supporter is connected with the free end of the corresponding first cross beam, second horizontal supporters are also connected between connecting points, a third support steel plate is arranged on the surface formed by the first cross beams and the second horizontal supporters, a second flange is arranged on the third support steel plate, one side surface of the main framework is connected with a balancing weight body, and the balancing weight body is arranged on the opposite surface to the inclined supporters. The bottom connecting structure provided by the invention has the following advantages that the dragging area is small, the structure of the bottom connecting structure is simple, the dragging area is small, the weight is light, the eccentric problem is eliminated, and the like.
Description
Technical field
The present invention relates to the vertical riser bottom syndeton of a kind of Free Station, belong to offshore oil engineering field.
Background technology
Along with the continuous increase of petroleum gas demand, oil-gas mining center of gravity to sea transfer, and moves towards deep water gradually.Riser systems is the key components of deepwater oil-gas development scheme.The vertical standpipe of Free Station is one of several main riser forms.
The building block of the vertical riser systems of Free Station is more, mainly comprises: flexible jumper pipe, air tank, top syndeton, standpipe main body, floor structure, standpipe basis and rigidity jumper connection pipe etc.Floor structure is mainly used in rigidity jumper connection pipe, connection between standpipe main body and standpipe basis and support.But due to the impact by the motion of ocean current, standpipe bulk motion and rigidity jumper connection pipe, its force-bearing situation is very complicated.Therefore, the safety and reliability of floor structure to the vertical riser systems of Free Station has material impact.
The problems such as common floor structure ubiquity complex structure, weight are large, towing area is large and eccentricity issues is outstanding, cause adverse effect to the force-bearing situation of riser systems.
Summary of the invention
The object of this invention is to provide the vertical riser bottom syndeton of a kind of Free Station, floor structure of the present invention can either meet rigidity jumper connection pipe, connection between standpipe main body and standpipe basis and support requirement, possesses again enough structural strengths, rigidity and fatigue life simultaneously.
The vertical riser bottom syndeton of Free Station provided by the present invention, comprises main frame and process pipelines;
Described main frame comprises four root posts, and described column is vertical and arranged in parallel, and the top of four described columns and bottom are all joined end to end by horizontal support I;
The upper surface of described main frame is provided with supporting steel plate I, and soffit is provided with supporting steel plate II; Described supporting steel plate I is provided with flange I, and described supporting steel plate II is connected with a plug and socket connector, and described plug and socket connector is to downward-extension;
Two adjacent described columns all connect a diagonal brace and a crossbeam I, and each described diagonal brace is connected with the free-end of each described crossbeam I, also connects a horizontal support II between this tie point;
The surface that described crossbeam I and described horizontal support II are formed is provided with supporting steel plate III; Described supporting steel plate III is provided with flange II;
Described process pipelines is a U-shaped pipeline, and it is arranged in described main frame, and its two ends are fixed by described flange I and described flange II;
One side of described main frame connects a balance weight body, and described balance weight body is located at the opposite face of described diagonal brace.
In the vertical riser bottom syndeton of described Free Station, the cross section of described main frame, in square, for described process pipelines, the layout of plug and socket connector that is connected with basis provide sufficient space, and can form good force path, optimize structure stressed.
In the vertical riser bottom syndeton of described Free Station, the middle part of described column is connected by horizontal support III, to increase stability and the fastness of described main frame;
Described horizontal support III is located in same level with described crossbeam I and described horizontal support II.
In the vertical riser bottom syndeton of described Free Station, described balance weight body is connected on described main frame by crossbeam II, described crossbeam II is located in same level with described crossbeam I, is namely arranged on the rightabout in described main frame centre-of gravity shift direction, prevents the skew of its center of gravity.
In the vertical riser bottom syndeton of described Free Station, described balance weight body comprises counterweight tube and is filled in the filler in described counterweight tube, and described counterweight tube is sealed by an end plate.
In the vertical riser bottom syndeton of described Free Station, described column, described horizontal support I, described horizontal support II, described horizontal support III, described diagonal brace, described crossbeam I and described crossbeam II are hollow rod, therefore alleviate the weight of described floor structure.
Free Station of the present invention vertical riser bottom syndeton tool has the following advantages:
Towing area is little: floor structure of the present invention possesses the advantage that structure is simple, towing area is little, effectively can reduce the active force of stream.
Lightweight: floor structure of the present invention is formed primarily of hollow rod, lightweight in water, reduce the requirement to Free Station vertical standpipe air tank buoyancy, and then reduce air tank size.
Eliminate eccentricity issues: by arranging bascule, floor structure of the present invention essentially eliminates eccentricity issues, optimizes the stress of the vertical riser systems of Free Station, facilitates installation work under water.
Accompanying drawing explanation
Fig. 1 is the overall schematic perspective view of Free Station of the present invention vertical riser bottom syndeton.
Fig. 2 is the schematic perspective view of the main frame part of the vertical riser bottom syndeton of Free Station of the present invention.
Fig. 3 is the schematic perspective view of the process pipelines part of the vertical riser bottom syndeton of Free Station of the present invention.
In figure, each mark is as follows:
1 flange I, 2 flange II, 3 plug and socket connector, 4 horizontal support I, 5 columns, 6 crossbeam I, 7 counterweight tubes, 8 end plate I, 9 diagonal braces, 10 crossbeam II, 11 process pipelines, 12 counter weight fillers, 13 supporting steel plate I, 14 supporting steel plate II, 15 supporting steel plate III, 16 end plate II, 17 horizontal supports II.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, but the present invention is not limited to following examples.
As shown in Figure 1 to Figure 3, be the structural representation of the vertical riser bottom syndeton of Free Station provided by the invention, it comprises main frame, boss, process pipelines 11 and counter weight construction.Wherein main frame comprises four parallel and columns 5 that are that vertically arrange, four root posts 5 are arranged on foursquare four angles, between column 5 by three groups (top, middle part and bottom) totally ten two horizontal supports I 4 be connected, often organize horizontal support I 4 in arranged in squares.The side-lower of four root posts 5 arranges boss, and this boss is made up of two diagonal braces, 9, horizontal support II 17 and two crossbeams II 10.The upper surface of main frame is provided with supporting steel plate I 13 and flange I 1, and its soffit is provided with supporting steel plate III 15, and is connected with plug and socket connector 3, and plug and socket connector 3 is for connecting the basis of the vertical standpipe of Free Station; The upper surface of boss is provided with supporting steel plate II 14 and flange II 2.Process pipelines 11 is arranged in the inside of main frame, and in " U " font, to play the object of protection, the two ends of process pipelines 11 are connected respectively on flange I 1 and flange II 2.Counter weight construction is arranged on the rightabout in main frame centre-of gravity shift direction, the i.e. rightabout of main frame boss, to balance its weight Influence from Eccentric, it comprises the counter weight filler 12 of counterweight tube 7 and Qi Nei filling, and adopt end plate I 8 to seal termination, and be connected to the middle part of main frame by crossbeam I 6.
In the vertical riser bottom syndeton of Free Station of the present invention, column 5, horizontal support I 4, crossbeam I, diagonal brace 9, crossbeam II 10 and horizontal support II 17 all adopt hollow rod, and the two ends of column 5 adopt end plate II 16 to carry out end-blocking.
When installing and using the vertical riser bottom syndeton of Free Station of the present invention, first bolt is used to be connected the tapered stress joints below vertical to flange I 1 and Free Station standpipe main body, then start to transfer riser systems, until plug and socket connector 3 to be inserted on standpipe basis among slot, finally, rigidity jumper connection pipe is connected on the flange II 2 with its pairing, so far namely completes the installation of the vertical standpipe main body of Free Station and floor structure.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. the vertical riser bottom syndeton of Free Station, is characterized in that: it comprises main frame and process pipelines;
Described main frame comprises four root posts, and described column is vertical and arranged in parallel, and the top of four described columns and bottom are all joined end to end by horizontal support I;
The upper surface of described main frame is provided with supporting steel plate I, and soffit is provided with supporting steel plate II; Described supporting steel plate I is provided with flange I, and described supporting steel plate II is connected with a plug and socket connector, and described plug and socket connector is to downward-extension;
Two adjacent described columns all connect a diagonal brace and a crossbeam I, and each described diagonal brace is connected with the free-end of each described crossbeam I, also connects a horizontal support II between this tie point;
The surface that described crossbeam I and described horizontal support II are formed is provided with supporting steel plate III; Described supporting steel plate III is provided with flange II;
Described process pipelines is a U-shaped pipeline, and it is arranged in described main frame, and its two ends are fixed by described flange I and described flange II;
One side of described main frame connects a balance weight body, and described balance weight body is located at the opposite face of described diagonal brace.
2. floor structure according to claim 1, is characterized in that: the cross section of described main frame is in square.
3. floor structure according to claim 1 and 2, is characterized in that: the middle part of described column is connected by horizontal support III;
Described horizontal support III is located in same level with described crossbeam I and described horizontal support II.
4. the floor structure according to any one of claim 1-3, is characterized in that: described balance weight body is connected on described main frame by crossbeam II, and described crossbeam II is located in same level with described crossbeam I.
5. the floor structure according to any one of claim 1-4, is characterized in that: described balance weight body comprises counterweight tube and is filled in the filler in described counterweight tube.
6. floor structure according to claim 5, is characterized in that: described column, described horizontal support I, described horizontal support II, described horizontal support III, described diagonal brace, described crossbeam I and described crossbeam II are hollow rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410528353.9A CN104329044A (en) | 2014-10-09 | 2014-10-09 | Free standing type vertical pipe bottom connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410528353.9A CN104329044A (en) | 2014-10-09 | 2014-10-09 | Free standing type vertical pipe bottom connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329044A true CN104329044A (en) | 2015-02-04 |
Family
ID=52403839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410528353.9A Pending CN104329044A (en) | 2014-10-09 | 2014-10-09 | Free standing type vertical pipe bottom connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329044A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218016A (en) * | 2017-07-13 | 2017-09-29 | 安世亚太科技股份有限公司 | Connecting connection parts under deep sea vertical pipe |
| WO2020124186A1 (en) | 2018-12-19 | 2020-06-25 | Subsea 7 Do Brasil Servicos Ltda | Installing subsea risers |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491313A (en) * | 2001-02-19 | 2004-04-21 | �����ɷ� | Seashore and seabed connecting apparatus for laying underwater pipelines in great depth |
| US20050238440A1 (en) * | 2004-04-22 | 2005-10-27 | Jordan Travis R | Top tensioned riser |
| WO2009138609A2 (en) * | 2008-04-24 | 2009-11-19 | Saipem S.A. | Bed-to-surface connector installation of a riogid tube with a flexible duct having positive flotation |
| US20140069657A1 (en) * | 2012-09-11 | 2014-03-13 | Oil States Industries, Inc. | Freestanding Hybrid Riser System Including a Bottom Configuration with a Flexible Pipe Joint and a Diverless Pipe Connector |
| CN204225832U (en) * | 2014-10-09 | 2015-03-25 | 中国海洋石油总公司 | The vertical riser bottom syndeton of a kind of Free Station |
-
2014
- 2014-10-09 CN CN201410528353.9A patent/CN104329044A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491313A (en) * | 2001-02-19 | 2004-04-21 | �����ɷ� | Seashore and seabed connecting apparatus for laying underwater pipelines in great depth |
| US20050238440A1 (en) * | 2004-04-22 | 2005-10-27 | Jordan Travis R | Top tensioned riser |
| WO2009138609A2 (en) * | 2008-04-24 | 2009-11-19 | Saipem S.A. | Bed-to-surface connector installation of a riogid tube with a flexible duct having positive flotation |
| US20140069657A1 (en) * | 2012-09-11 | 2014-03-13 | Oil States Industries, Inc. | Freestanding Hybrid Riser System Including a Bottom Configuration with a Flexible Pipe Joint and a Diverless Pipe Connector |
| CN204225832U (en) * | 2014-10-09 | 2015-03-25 | 中国海洋石油总公司 | The vertical riser bottom syndeton of a kind of Free Station |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218016A (en) * | 2017-07-13 | 2017-09-29 | 安世亚太科技股份有限公司 | Connecting connection parts under deep sea vertical pipe |
| WO2020124186A1 (en) | 2018-12-19 | 2020-06-25 | Subsea 7 Do Brasil Servicos Ltda | Installing subsea risers |
| GB2579869A (en) * | 2018-12-19 | 2020-07-08 | Subsea 7 Do Brasil Servicos Ltda | Installing subsea risers |
| GB2579869B (en) * | 2018-12-19 | 2021-06-02 | Subsea 7 Do Brasil Servicos Ltda | Methods and apparatus for installing subsea risers |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |