CN103935477B - Connecting device for deepwater FPSO rotating tower and rigid stand pipe - Google Patents
Connecting device for deepwater FPSO rotating tower and rigid stand pipe Download PDFInfo
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- CN103935477B CN103935477B CN201410145592.6A CN201410145592A CN103935477B CN 103935477 B CN103935477 B CN 103935477B CN 201410145592 A CN201410145592 A CN 201410145592A CN 103935477 B CN103935477 B CN 103935477B
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Abstract
The invention relates to a connecting device for a deepwater FPSO rotating tower and a rigid stand pipe. The connecting device for the deepwater FPSO rotating tower and the rigid stand pipe is characterized by comprising a flexible stand pipe, an I-type pipe, a supporting block, a centering device and a bending stopping device. Through the connecting device for the deepwater FPSO rotating tower and the rigid stand pipe, the rigid stand pipe at low cost can be directly connected to the FPSO rotating tower, the selection of production pipes of FPSOs operating in deepwater areas is not limited to single-top stretching stand pipes, composite stand pipe towers and flexible stand pipes which are extremely high in cost any more, the technical requirements for the connectors of the stand pipe of the FPSO rotating tower are lowered, and cost is lowered to a certain extent. Even though the connecting device for the deepwater FPSO rotating tower and the rigid stand pipe is designed for the FPSO rotating tower, the connecting device for the deepwater FPSO rotating tower and the rigid stand pipe can also be popularized to connection of other types of offshore floating type structures and rigid stand pipes, and therefore, the connecting device for the deepwater FPSO rotating tower and the rigid stand pipe can be widely applied to the fields of deep sea engineering and deep sea oil and gas resource development.
Description
Technical field
The present invention relates to a kind of attachment means, especially with regard to a kind of deep water FPSO (Floating Production
Storage and Offloading, floating production storage offloading) capstan head and rigidity standpipe attachment means.
Background technology
FPSO with its entirely extra large formula operation, marine site strong adaptability, can permanent mooring, storage capacity be big, transferable reuse,
Build/the advantage such as repacking cycle is short, low cost and investment repayment be fast, extensively should obtain in world's exploitation of offshore oil and gas
With becoming the main flow facility of offshore oil and gas production.With Offshore Oil Industry to the expansion in deep water field and marginal oil field
Exploitation, all will breed the potential market of FPSO and wide development space.FPSO is generally configured with large-scale oil storage capacity and relatively
High stability, but because the Water Plane of FPSO is larger, therefore it becomes in wave energy spectrum period range (3 seconds～25 seconds) and more slowly
Change period range (>50 seconds) larger motion response all can occur.Therefore, the kinetic characteristic of FPSO sets to its riser systems
Meter is put forward higher requirement.
With Marine oil and gas resource development activities constantly to deep-water developments, the riser systems of FPSO capstan head are given birth in oil and gas development
The proportion producing shared by cost is increasing.At present in conceptual phase, the standpipe being connected with FPSO capstan head in deep water field
Type includes：Single top stretches standpipe（Single Top-Tensioned Riser, STTR）, composite riser tower（Riser
Tower, RT）, compliant riser（Flexible Riser, FR）With steel vertical line standpipe（Steel CatenaryRiser, SCR）Deng.
The flexible jump pipe that single top stretches standpipe/composite riser tower is joined directly together with FPSO capstan head, flexible jump pipe with
Its length is shorter, and liquid in pipe is less, reduces the load to FPSO, and the therefore deep water sea area in FPSO capstan head obtains certain model
The popularization enclosed, but because it involves great expense it is difficult to spread uses.Compliant riser is also involved great expense it is difficult to big with it
Area is promoted the use of.Although the relatively inexpensive material benefit of rigidity standpipe, it is directly connected to FPSO capstan head using rigidity standpipe, then can cause
The stem joint of FPSO capstan head bears larger load, leads to stem joint serious fatigue damage, brings wind to system
Danger.
Content of the invention
For the problems referred to above, it is an object of the invention to provide the attachment means of a kind of deep water FPSO capstan head and rigidity standpipe.
For achieving the above object, the present invention takes technical scheme below：A kind of deep water FPSO capstan head and the company of rigidity standpipe
Connection device it is characterised in that：It includes a compliant riser, an I-tube, a support block, a centralizer and one and stops bent device；Described
The two ends of compliant riser are provided with flange, and the upper end of described compliant riser is fastenedly connected FPSO capstan head by flange, and lower end leads to
Cross flange and be fastenedly connected described rigidity standpipe；Described I-tube is set in the top of described compliant riser, and its two ends is also equipped with method
Orchid, the upper end of described I-tube is rigidly connected with FPSO capstan head by flange；Described support block is set in described compliant riser and institute
State between the upper flanges of I-tube；It is arranged at intervals with some circular grooves, described centralizer is set in institute in described I-tube
State on compliant riser and be correspondingly arranged in the circular groove of described I-tube；Described only bent device is set under described I-tube for one
Reverse frustoconic elastic rubber pipe on the described compliant riser at end, the outer tube wall of described compliant riser and the described inner tube stopping bent device
Wall fits；The upper end of described only bent device carries the lower end that flange arrangement is fastenedly connected described I-tube, described only bent device by it
Lower end fix on described compliant riser outer tube wall.
Two circular grooves of interval setting in described I-tube.
Described support block and described centralizer are hollow elasticity rubber ring.
Described rigidity standpipe adopts steel vertical line standpipe.
Described FPSO capstan head is connected one to one multiple described rigidity standpipes by this attachment means multiple.
Due to taking above technical scheme, it has advantages below to the present invention：1st, the present invention is using in FPSO capstan head and steel
Property standpipe between a compliant riser is set, and in the outer sheathed I-tube of compliant riser, thus effectively prevent rigidity standpipe and being connected
FPSO capstan head is joined directly together and causes the stem joint of FPSO capstan head to bear larger loading problem, and by I-tube with
FPSO capstan head is rigidly connected, thus the present invention is fixed on FPSO capstan head.2nd, the present invention is using in the setting of I-tube lower end
Only bent device, to increase the bending stiffness between compliant riser and I-tube, thus reduce the curved of compliant riser and I-tube junction
Transverse stress, improves the fatigue life of compliant riser herein.Not only can will be direct for lower-cost rigidity standpipe by the present invention
It is connected on FPSO capstan head so that the selection of the FPSO production riser of deep water waters operation is no longer limited to the high list top of cost
Portion's stretching standpipe, composite riser tower and compliant riser, and reduce the technical requirements of the stem joint to FPSO capstan head, necessarily
Cost is reduced on degree.Although the present invention is directed to FPSO capstan head and designs, it is also possible to be generalized to the offshore floating type of other forms
In the connection of structure and rigidity standpipe.Therefore, the present invention can be widely applied to deep-sea engineering and deep-sea oil gas development of resources neck
Domain.
Brief description
Fig. 1 is the application state schematic diagram of the present invention
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in detail.
As shown in figure 1, the present invention includes compliant riser 1, I-tube 2, support block 3, centralizer 4 and stops bent device 5.
Wherein, the two ends of compliant riser 1 are provided with flange, and the upper end of compliant riser 1 is fastenedly connected FPSO by flange
Capstan head 6, lower end is fastenedly connected rigidity standpipe 7 by flange, so that the oil gas in rigidity standpipe 7 is conveyed by compliant riser 1
To in FPSO capstan head 6.I-tube 2 is set in the top of compliant riser 1, and its two ends is also provided with flange, and the upper end of I-tube 2 leads to
Cross flange to be rigidly connected with FPSO capstan head 6, to ensure that compliant riser 1 vertically connects FPSO capstan head 6, be easy to convey oil gas.Support
Block 3 is set between compliant riser 1 and the upper flanges of I-tube 2, for direct between buffering flexible standpipe 1 and I-tube 2
Active force, it is to avoid the direct effect of the two and the structural damage that causes.It is arranged at intervals with some circular grooves, in determining in I-tube 2
Heart device 4 is set on compliant riser 1 and is correspondingly arranged in the circular groove of I-tube 2, so that fixing flexible standpipe 1 is in I-tube
Position in 2, prevents the collision between compliant riser 1 and I-tube 2 and friction.Only bent device 5 is set in I-tube 2 lower end for one
Reverse frustoconic elastic rubber pipe on compliant riser 1, the outer tube wall of compliant riser 1 is fitted with the inner tubal wall of only bent device 5.Only song
The upper end of device 5 carries, by it, the lower end that flange arrangement is fastenedly connected I-tube 2, and only the lower end of bent device 5 fixes in compliant riser 1
On outer tube wall, for increasing the bending stiffness between compliant riser 1 and I-tube 2, so that reduction compliant riser 1 and I-tube 2 are even
Connect the bending stress at place, improve the fatigue life of compliant riser 1 herein.
In above-described embodiment, support block 3 and centralizer 4 are hollow elasticity rubber ring.Rigidity standpipe 7 adopts steel vertical line
Standpipe.
In above-described embodiment, two circular grooves of interval setting in I-tube 2.
In above-described embodiment, FPSO capstan head 6 can be connected one to one several rigidity by some above-mentioned attachment means
Standpipe 7.
The various embodiments described above are merely to illustrate the present invention, and the structure of wherein each part, connected mode and processing technology etc. are all
Can be varied from, every equivalents carrying out on the basis of technical solution of the present invention and improvement, all should not exclude
Outside protection scope of the present invention.
Claims (7)
1. a kind of deep water FPSO capstan head and rigidity standpipe attachment means it is characterised in that：It includes a compliant riser, an I type
Pipe, a support block, a centralizer and one stop bent device；
The two ends of described compliant riser are provided with flange, and the upper end of described compliant riser is fastenedly connected FPSO by flange and turns
Tower, lower end is fastenedly connected described rigidity standpipe by flange；Described I-tube is set in the top of described compliant riser, its two ends
It is also equipped with flange, the upper end of described I-tube is rigidly connected with FPSO capstan head by flange；Described support block is set in described soft
Property is between standpipe and the upper flanges of described I-tube；It is arranged at intervals with some circular grooves in described I-tube, described center
Device is set on described compliant riser and is correspondingly arranged in the circular groove of described I-tube；Described only bent device is set in for one
Reverse frustoconic elastic rubber pipe on the described compliant riser of described I-tube lower end, the outer tube wall of described compliant riser with described
Only the inner tubal wall of bent device fits；The upper end of described only bent device carries flange arrangement by it and is fastenedly connected under described I-tube
End, the lower end of described only bent device fixes on described compliant riser outer tube wall.
2. as claimed in claim 1 a kind of deep water FPSO capstan head and rigidity standpipe attachment means it is characterised in that：Described I
Two circular grooves of interval setting in type pipe.
3. as claimed in claim 1 a kind of deep water FPSO capstan head and rigidity standpipe attachment means it is characterised in that：Described
Bracer and described centralizer are hollow elasticity rubber ring.
4. as claimed in claim 2 a kind of deep water FPSO capstan head and rigidity standpipe attachment means it is characterised in that：Described
Bracer and described centralizer are hollow elasticity rubber ring.
5. the attachment means of a kind of deep water FPSO capstan head as claimed in claim 1 or 2 or 3 or 4 and rigidity standpipe, its feature exists
In：Described rigidity standpipe adopts steel vertical line standpipe.
6. the attachment means of a kind of deep water FPSO capstan head as claimed in claim 1 or 2 or 3 or 4 and rigidity standpipe, its feature exists
In：Described FPSO capstan head is connected one to one multiple described rigidity standpipes by this attachment means multiple.
7. as claimed in claim 5 a kind of deep water FPSO capstan head and rigidity standpipe attachment means it is characterised in that：Described
FPSO capstan head is connected one to one multiple described rigidity standpipes by this attachment means multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145592.6A CN103935477B (en) | 2014-04-11 | 2014-04-11 | Connecting device for deepwater FPSO rotating tower and rigid stand pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145592.6A CN103935477B (en) | 2014-04-11 | 2014-04-11 | Connecting device for deepwater FPSO rotating tower and rigid stand pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103935477A CN103935477A (en) | 2014-07-23 |
| CN103935477B true CN103935477B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410145592.6A Active CN103935477B (en) | 2014-04-11 | 2014-04-11 | Connecting device for deepwater FPSO rotating tower and rigid stand pipe |
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| CN (1) | CN103935477B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018163126A3 (en) * | 2017-03-09 | 2018-11-01 | Single Buoy Moorings, Inc. | Steel catenary riser top interface |
Citations (5)
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|---|---|---|---|---|
| US4955310A (en) * | 1988-12-08 | 1990-09-11 | Jack Pollack | Bearing arrangement for single point terminal |
| CN2736251Y (en) * | 2004-01-20 | 2005-10-26 | 天津市海王星海上工程技术有限公司 | Anti-ice single anchor leg type anchoring system |
| CN101336190A (en) * | 2006-01-03 | 2008-12-31 | 蓝水能源服务有限公司 | Disconnectable mooring system for a vessel |
| CN103442979A (en) * | 2011-02-01 | 2013-12-11 | 塞万海洋股份有限公司 | Production unit having a ballastable rotation symmetric hull and a moonpool |
| CN203921145U (en) * | 2014-04-11 | 2014-11-05 | 中国海洋石油总公司 | The connecting device of deep water FPSO capstan head and rigidity standpipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6990917B2 (en) * | 2001-12-28 | 2006-01-31 | Fmc/Sofec Floating Systems, Inc. | Large diameter mooring turret with compliant deck and frame |
-
2014
- 2014-04-11 CN CN201410145592.6A patent/CN103935477B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4955310A (en) * | 1988-12-08 | 1990-09-11 | Jack Pollack | Bearing arrangement for single point terminal |
| CN2736251Y (en) * | 2004-01-20 | 2005-10-26 | 天津市海王星海上工程技术有限公司 | Anti-ice single anchor leg type anchoring system |
| CN101336190A (en) * | 2006-01-03 | 2008-12-31 | 蓝水能源服务有限公司 | Disconnectable mooring system for a vessel |
| CN103442979A (en) * | 2011-02-01 | 2013-12-11 | 塞万海洋股份有限公司 | Production unit having a ballastable rotation symmetric hull and a moonpool |
| CN203921145U (en) * | 2014-04-11 | 2014-11-05 | 中国海洋石油总公司 | The connecting device of deep water FPSO capstan head and rigidity standpipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018163126A3 (en) * | 2017-03-09 | 2018-11-01 | Single Buoy Moorings, Inc. | Steel catenary riser top interface |
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| Publication number | Publication date |
|---|---|
| CN103935477A (en) | 2014-07-23 |
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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: Outai Department (Tianjin) Ocean Engineering Technology Co. Ltd. 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: Outai Department (Tianjin) Ocean Engineering Technology Co. Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191212 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: Otaike (Tianjin) Deep Sea Engineering Technology Co., Ltd. |