CN104060971A - Assembly type underwater manifold structure - Google Patents
Assembly type underwater manifold structure Download PDFInfo
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- CN104060971A CN104060971A CN201410276369.5A CN201410276369A CN104060971A CN 104060971 A CN104060971 A CN 104060971A CN 201410276369 A CN201410276369 A CN 201410276369A CN 104060971 A CN104060971 A CN 104060971A
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Abstract
The invention discloses an assembly type underwater manifold structure. The assembly type underwater manifold structure comprises a bottom supporting frame, a manifold technology pipeline, an upper guiding and assembling frame and multiple pipeline guiding supports, wherein the manifold technology pipeline is arranged on the bottom supporting frame, the multiple manifold guiding supports are used for restraining and supporting the manifold technology pipeline, the upper guiding and assembling frame is formed by connecting multiple upright posts, multiple main upright posts and cross supports in a crossing way, hanging points are arranged in the top positions of the main upright posts, and each main upright post is connected with a guiding sleeve by outwards stretching the main upright post. According to the assembly type underwater manifold structure disclosed by the utility model, the assembly type underwater manifold structure can be independently put down to a sea-floor foundation structure through a crane and can be assembled into a whole with the sea-floor foundation structure; the load of the manifold technology pipeline and an interface structure can be effectively transmitted to the sea-floor foundation structure, the requirement on ship installation is greatly reduced, and the selectable range of a ship resource and the selection of weather windows are enlarged; meanwhile, the installation difficulty and the construction risk are reduced.
Description
Technical field
The present invention relates to subsea manifold, relate in particular to a kind of assembling subsea manifold structure for offshore and gas development.Belong to Offshore Engineering field.
Background technology
Subsea production system is indispensable in deep water offshore and gas development and basic equipment.Along with deep water and marginal field are progressively moved towards in the exploitation of China's petroleum resources, subsea production system is widely applied, and subsea production system will be the key that offshore and gas development is produced from now on.
Subsea manifold occupies an important position in oil and gas development under water, is connected with other underwater installations by subsea manifold, completes the defeated distribution of collection under water, realizes optimizing distribution of whole subsea production system.
At present, existing subsea manifold is mainly to be connected to form by foundation structure, manifold structure and protection structure.Because its volume and weight is larger, often substantially exceed the crane capacity of conventional sea installation loop wheel machine.If the mounting means that adopts subsea manifold entirety to transfer, will propose high challenge to marine installation exercise, need boats and ships loop wheel machine to have enough crane capacities and cantilever span distance, simultaneously, also can limit the weather window of installation, thereby, the risk of installation difficulty and underwater operation increased.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that prior art exists, and a kind of assembling subsea manifold structure is provided, and it not only can be transferred separately to seafloor foundation structure by loop wheel machine, and is assembled into entirety with foundation structure; And, the load of process pipelines and interface structure can be delivered in foundation structure effectively, reduce widely the requirement to mounting shipping, expand the optional scope of resources on board and the selection of weather window; Meanwhile, installation difficulty and construction risk have been reduced.
The object of the invention is to be realized by following technical scheme:
A kind of assembling subsea manifold structure, is characterized in that: comprising: a bottom support framework, be arranged on manifold process pipelines on bottom support framework, upper guide to assembling framework, for retraining and support several pipeline guiding+supports of manifold process pipelines; Wherein, upper guide is by several columns to assembling framework, and several head trees and stull interconnection form, and the tip position of head tree is provided with suspension centre; On head tree, stretch to outer and be connected with a pilot sleeve.
Described bottom support framework is the frame construction being welded by i iron, and bottom support framework is provided with spacing collar.
Described pilot sleeve is for being inverted toroidal.
The i iron of described bottom support framework is provided with reinforcement gusset with upper guide to the crossing node bottom of column, the head tree of assembling framework; Wherein, transition ring flat-plate is also installed on head tree; On the i iron of bottom support framework, be provided with the spacing bearing of ball valve, the spacing bearing of this ball valve is made up of the welding of right-angled intersection plate.
Described pipeline guiding trestle is by upper and lower half-watt clamp and bolt and nut to connecting and composing, and pipeline guiding trestle both sides are provided with reinforcement diagonal brace.
On described column, be provided with a buphthalmos saddle.
Described manifold process pipelines is provided with: several Trunk Lines and the several by-pass lines that are connected with several Trunk Lines, and manifold process pipelines is to be connected and composed by metallurgical clad pipe, underwater tee joint, underwater flange, subsea control valve; Wherein, one end of Trunk Line is connected with rigid submarine pipeline, and the other end of Trunk Line is for interim pigging; By-pass line is connected with Trunk Line by underwater tee joint; Two by-pass lines by one under water valve throttle be connected with jumper pipe, in addition, two by-pass lines are cut off and are reserved by double gate valve.
Beneficial effect of the present invention:
1, reduce the requirement to mounting shipping, expanded the optional scope of resources on board and the selection of weather window, meanwhile, reduced installation difficulty and construction risk;
2, by manifold core texture modularization, be convenient to the work such as follow-up construction, test, transport installation, its design concept is equally applicable to other underwater facility; Meanwhile, adopt the form of assembly connection, can meet the requirement of recovery, be conducive to the needs such as maintenance detection in later stage;
3, be with bell-mouthed pilot sleeve assembly structure, can realize the docking of underwater structures, the assembling of basis, spacing collar bottom, can effectively be delivered to foundation structure by the load of process pipelines and interface structure;
4, the setting of buphthalmos can meet the demand that levelness installation accuracy is adjusted, and in bottom support framework, confined space can pour into iron sand or concrete and realize the requirement of counterweight.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is structural framing schematic diagram of the present invention.
Fig. 3 is process pipelines schematic diagram of the present invention.
Major label description in figure:
1. bottom support framework, 2. manifold process pipelines, 3. upper guide is to assembling framework, 4. i iron, 5. pipeline guiding trestle, 6. column, 7. stull, 8. head tree, 9. suspension centre, 10. pilot sleeve, 11. spacing collars, 12. strengthen gusset, 13. transition ring flat-plates, 14. standpipes, 15. strengthen diagonal brace, the spacing bearing of 16. ball valve, 17. buphthalmos saddles, 18. metallurgical clad pipes, 19. underwater tee joints, 20. ball flanges under water, 21. blind flanges under water, 22. ball valves under water, 23. gate valves under water.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows, the present invention includes: bottom support framework 1, be arranged on manifold process pipelines 2 on bottom support framework 1, for retraining and support several pipeline guiding trestles 5 of manifold process pipelines 2 and being arranged on upper guide on bottom support framework 1 to assembling framework 3; Wherein, bottom support framework 1 is the frame construction being welded by i iron 4, and bottom support framework 1 is provided with spacing collar 11; In pipeline guiding trestle 5, be placed with packing ring, in order to the axial freedom of discharge line; Upper guide is by several columns 6 to assembling framework 3, several head trees 8 and stull 7 interconnections form, this column 6 adopts welding manner to fix with bottom support framework 1, and this head tree 8 adopts axis hole connected mode to coordinate and is arranged in the spacing collar 11 of bottom support framework 1; The tip position of head tree 8 adopts welding manner that suspension centre 9 is installed; In this head tree 8, stretch be connected with a pilot sleeve 10 on part head tree 8 to outer, this pilot sleeve 10 is for being inverted toroidal.
The i iron 4 of above-mentioned bottom support framework 1 and upper guide adopt welding manner to be provided with to assembling framework 3 central posts 6, the crossing node bottom of head tree 8 to strengthen gusset 12; Wherein, on head tree 8, adopt welding manner that transition ring flat-plate 13 is installed.
The present embodiment: pipeline guiding trestle 5 is provided with 7, comprising: 3 14 cun of supports, 36 cun of supports and 14 cun of support; This pipeline guiding trestle 5 by upper and lower half-watt clamp and bolt and nut to connecting and composing; By upper and lower half-watt clamp and bolt and nut, to connection constraints pipeline, this clamp bottom half-watt is welded and fixed by a standpipe 14 and i iron top flange; 4 cun and 6 writing brush line guiding trestle 5 both sides adopt welding manners be provided with strengthen diagonal brace 15; On the i iron of bottom support framework 1, be provided with the spacing bearing 16 of ball valve, this bracket is made up of the welding of right-angled intersection plate, and size need to be determined according to the three-dimensional dimension of valve and suffered load.
As shown in Figure 3, above-mentioned manifold process pipelines 2 is provided with: several Trunk Lines and the several by-pass lines that are connected with several Trunk Lines, manifold process pipelines 2 be by the metallurgical clad pipe 18 of 14 cun, 6 cun and 4 cun, underwater tee joint 19, under water ball flange 20, blind flange 21, subsea control valve connect and compose under water; Wherein, 14 cun of metallurgical clad pipes 18 are as Trunk Line, and one end of Trunk Line is connected with rigid submarine pipeline, and the other end of Trunk Line is for interim pigging, and the two balls of pigging end employing under water valve 22 carry out two the partition; 6 cun and 4 cun are as by-pass line, and wherein by-pass line is connected with Trunk Line by reducing underwater tee joint 19; Wherein two by-pass lines are connected with jumper pipe by gate valve 23 throttlings under water, and in addition, two by-pass lines cut off reserved by double gate valve.
On above-mentioned column 6, be provided with a buphthalmos saddle 17, position height need to meet the observation requirement of underwater robot (ROV).
When use, by mounting shipping hanging device, the present invention is transferred to the pairing foundation structure in seabed, dock location by pilot sleeve 10 with the lead of seafloor foundation structure, then insert the guiding realization assembling of foundation structure by spacing collar 11.Ball flange in manifold process pipelines 12 connects respectively steel seabed pipeline and jumper pipe, and manifold process pipelines 12 forms after entirety by guiding trestle 5 and bottom support framework 1 again, then realizes stablizing in seabed with foundation structure assembling.
Above-mentioned flange, threeway, ball valve, gate valve is prior art under water, and the technology of not specified (NS) is prior art.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. an assembling subsea manifold structure, is characterized in that: comprising: a bottom support framework, be arranged on manifold process pipelines on bottom support framework, upper guide to assembling framework, for retraining and support several pipeline guiding+supports of manifold process pipelines; Wherein, upper guide is by several columns to assembling framework, and several head trees and stull interconnection form, and the tip position of head tree is provided with suspension centre; On head tree, stretch to outer and be connected with a pilot sleeve.
2. assembling subsea manifold structure according to claim 1, is characterized in that: described bottom support framework is the frame construction being welded by i iron, and bottom support framework is provided with spacing collar.
3. assembling subsea manifold structure according to claim 1, is characterized in that: described pilot sleeve is for being inverted toroidal.
4. assembling subsea manifold structure according to claim 1 and 2, is characterized in that: the i iron of described bottom support framework is provided with reinforcement gusset with upper guide to the crossing node bottom of column, the head tree of assembling framework; Wherein, transition ring flat-plate is also installed on head tree; On the i iron of bottom support framework, be provided with the spacing bearing of ball valve, the spacing bearing of this ball valve is made up of the welding of right-angled intersection plate.
5. assembling subsea manifold structure according to claim 1, is characterized in that: described pipeline guiding trestle is by upper and lower half-watt clamp and bolt and nut to connecting and composing, and pipeline guiding trestle both sides are provided with reinforcement diagonal brace.
6. assembling subsea manifold structure according to claim 1, is characterized in that: on described column, be provided with a buphthalmos saddle.
7. assembling subsea manifold structure according to claim 1, it is characterized in that: described manifold process pipelines is provided with: several Trunk Lines and the several by-pass lines that are connected with several Trunk Lines, manifold process pipelines is to be connected and composed by metallurgical clad pipe, underwater tee joint, underwater flange, subsea control valve; Wherein, one end of Trunk Line is connected with rigid submarine pipeline, and the other end of Trunk Line is for interim pigging; By-pass line is connected with Trunk Line by underwater tee joint; Two by-pass lines by one under water valve throttle be connected with jumper pipe, in addition, two by-pass lines are cut off and are reserved by double gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276369.5A CN104060971B (en) | 2014-06-19 | 2014-06-19 | Assembly type underwater manifold structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276369.5A CN104060971B (en) | 2014-06-19 | 2014-06-19 | Assembly type underwater manifold structure |
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| CN104060971A true CN104060971A (en) | 2014-09-24 |
| CN104060971B CN104060971B (en) | 2017-04-12 |
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| CN201410276369.5A Active CN104060971B (en) | 2014-06-19 | 2014-06-19 | Assembly type underwater manifold structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064958A (en) * | 2015-07-31 | 2015-11-18 | 中国海洋石油总公司 | Vertical multi-joint fishing net protection underground pipe manifold |
| CN107313723A (en) * | 2017-07-21 | 2017-11-03 | 中国海洋石油总公司 | Slidingtype super large caliber subsea manifold |
| CN111173479A (en) * | 2020-01-02 | 2020-05-19 | 海洋石油工程股份有限公司 | Underwater manifold of horizontal non-submersible connection integrated control system |
| CN111236893A (en) * | 2020-01-02 | 2020-06-05 | 海洋石油工程股份有限公司 | Underwater production system expansion tie-back facility |
| CN111874790A (en) * | 2020-06-22 | 2020-11-03 | 海洋石油工程股份有限公司 | A stand up wet structure of depositing for vertical dredging pipe ware under water |
| CN113062708A (en) * | 2021-03-05 | 2021-07-02 | 海洋石油工程股份有限公司 | Underwater central manifold with control system |
| CN113970012A (en) * | 2021-11-01 | 2022-01-25 | 中海石油(中国)有限公司 | Fixing pin fixing method for underwater production manifold in steel cylinder under seabed mud surface |
| CN114198567A (en) * | 2021-12-17 | 2022-03-18 | 中海石油(中国)有限公司 | Wet-type protection jumper connection method for underwater oil and gas production under seabed mud surface |
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| US4398846A (en) * | 1981-03-23 | 1983-08-16 | Mobil Oil Corporation | Subsea riser manifold with structural spanning member for supporting production riser |
| CN102080520A (en) * | 2010-12-08 | 2011-06-01 | 中国海洋石油总公司 | Deepwater subsea manifold structure |
| CN102704888A (en) * | 2012-06-01 | 2012-10-03 | 中国海洋石油总公司 | Novel underwater manifold sledge |
| CN203570282U (en) * | 2013-07-26 | 2014-04-30 | 中海石油深海开发有限公司 | Deepwater underwater on-line piping system |
-
2014
- 2014-06-19 CN CN201410276369.5A patent/CN104060971B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398846A (en) * | 1981-03-23 | 1983-08-16 | Mobil Oil Corporation | Subsea riser manifold with structural spanning member for supporting production riser |
| CN102080520A (en) * | 2010-12-08 | 2011-06-01 | 中国海洋石油总公司 | Deepwater subsea manifold structure |
| CN102704888A (en) * | 2012-06-01 | 2012-10-03 | 中国海洋石油总公司 | Novel underwater manifold sledge |
| CN203570282U (en) * | 2013-07-26 | 2014-04-30 | 中海石油深海开发有限公司 | Deepwater underwater on-line piping system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064958A (en) * | 2015-07-31 | 2015-11-18 | 中国海洋石油总公司 | Vertical multi-joint fishing net protection underground pipe manifold |
| CN107313723A (en) * | 2017-07-21 | 2017-11-03 | 中国海洋石油总公司 | Slidingtype super large caliber subsea manifold |
| CN111173479A (en) * | 2020-01-02 | 2020-05-19 | 海洋石油工程股份有限公司 | Underwater manifold of horizontal non-submersible connection integrated control system |
| CN111236893A (en) * | 2020-01-02 | 2020-06-05 | 海洋石油工程股份有限公司 | Underwater production system expansion tie-back facility |
| CN111236893B (en) * | 2020-01-02 | 2022-05-17 | 海洋石油工程股份有限公司 | Underwater production system expansion tie-back facility |
| CN111874790A (en) * | 2020-06-22 | 2020-11-03 | 海洋石油工程股份有限公司 | A stand up wet structure of depositing for vertical dredging pipe ware under water |
| CN113062708A (en) * | 2021-03-05 | 2021-07-02 | 海洋石油工程股份有限公司 | Underwater central manifold with control system |
| CN113970012A (en) * | 2021-11-01 | 2022-01-25 | 中海石油(中国)有限公司 | Fixing pin fixing method for underwater production manifold in steel cylinder under seabed mud surface |
| CN114198567A (en) * | 2021-12-17 | 2022-03-18 | 中海石油(中国)有限公司 | Wet-type protection jumper connection method for underwater oil and gas production under seabed mud surface |
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|---|---|
| CN104060971B (en) | 2017-04-12 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation |
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