CN2911362Y - Single layer thermal insulation pipeline structure for offshore transportation of petroleum, natural gas, water and/or oil-gas mixed transportation - Google Patents
Single layer thermal insulation pipeline structure for offshore transportation of petroleum, natural gas, water and/or oil-gas mixed transportation Download PDFInfo
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- CN2911362Y CN2911362Y CN 200620025290 CN200620025290U CN2911362Y CN 2911362 Y CN2911362 Y CN 2911362Y CN 200620025290 CN200620025290 CN 200620025290 CN 200620025290 U CN200620025290 U CN 200620025290U CN 2911362 Y CN2911362 Y CN 2911362Y
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- seabed
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Abstract
The utility model is a single layer insulated pipeline structure for seabed transmission of oil, natural gas and water or mixed transmission for oil, gas and water. The utility model comprises a steel pipe transmission for the first layer, also an anticorrosive surface coating of transmitting steel pipe for the second layer, a heat preservation surface covering layer with an anticorrosive coating as the third layer, the fourth layer consists of a polythene protective pipe which is covered on the surface with heat preservation layer and finally a concrete layer covered on the surface of polythene protective pipe as the fifth layer, the above are layers are in close with each other, resulting in a complex pipeline as a whole. A water stopping end cap formed as ladder arranged at the end of the pipe. Most work for the pipes have been prefabricated in the land workshop, only welding the inner layer of transmitting steel pipe upon the arrival on site at sea, the utility model, substantially reducing working time at sea and speeding up construction on site, meanwhile, reducing cost and raise efficiency as well.
Description
Technical field
The utility model relates to a kind of pipeline configuration, particularly a kind of monolayer heat-insulating pipe road structure that is used for seabed transfer oil, rock gas, water or mixed transportation of oil and gas.
Background technique
The insulation submerged pipeline that common offshore oilfield is used for transfer oil, rock gas, water or mixed transportation of oil and gas, particularly high viscosity, high-solidification point, high waxy oil is to be formed by connecting by a prefabricated on land joint joint oil transport pipeline.This conveyance conduit structure is formed first layer by two layers of composite pipe: the composite tube for conveying road is made of conveying steel pipe and the thermal insulation layer that is coated on the conveying steel pipe outer surface; The second layer: outer composite steel tube, play counterweight, anticorrosion, the effect of protection thermal insulation layer is made of outer layer pipe and the anticorrosive coat that is coated on the outer layer pipe.Composite tube for conveying road and outer composite steel tube cooperate the complete compound conveyance conduit of formation.Composite tube for conveying road and outer composite steel tube after prefabricated together are transported to the offshore construction scene, the connection operation in the enterprising line pipe of operation boats and ships road.At first, butt joint of 2-section pipe road and employing welding manner are welded at first layer composite tube for conveying road joint, then, again outer composite steel tube is sleeved on the thermal insulation layer outside in first layer composite tube for conveying road, carry out second layer welding, external welding in a section like this makes the outer composite steel tube of the first layer composite tube for conveying road and the second layer constitute the seabed transfer line together jointly.This pipeline configuration, because inside and outside layer steel pipe all needs at sea the job site to carry out weld job, welding capacity is big, the site operation activity duration is long, and because leak is welded in soldering point many weld intervals of long appearance easily, increased the workload of verification test, workmen labourer's intensity is increased.
The model utility content
The purpose of this utility model provides the monolayer heat-insulating pipe road structure of a kind of improved seabed transfer oil, rock gas, water or mixed transportation of oil and gas, be called the monolayer heat-insulating pipe road, it can once prefabricatedly on land form, reduced the welding capacity of job site, and greatly reduced the operation on the sea time.
The utility model by the following technical solutions for achieving the above object: the monolayer heat-insulating pipe road structure of seabed transfer oil, rock gas, water or mixed transportation of oil and gas, comprise: first layer is a conveying steel pipe, also comprise: the second layer, the 3rd layer, the 4th layer and layer 5, wherein, the second layer is the outer surface coating one deck corrosion-inhibiting coating at conveying steel pipe; The 3rd layer is polyurethane insulation coating, is coated on the outer surface of corrosion-inhibiting coating; The 4th layer is the polyethylene protective tube, is coated on the outer surface of thermal insulation layer; Layer 5 is a concrete layer, is coated on the outer surface of polyethylene protective tube; Closely cooperate between above-mentioned each layer and constitute a whole composite pipe.Described corrosion-inhibiting coating is to be made of binder and clinkery epoxy powder (FBE) material.Described concrete layer adopts steel wire and concrete to mix.At the stepped sealing end cap of the port of pipeline suit one.Described sealing end cap adopts high density polyethylene (HDPE) (HDPE) material to make.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the cross-sectional view of the utility model seabed conveyance conduit.
Fig. 2 is the side cross-sectional, view of the utility model seabed conveyance conduit.
Embodiment
See also Fig. 1, shown in Figure 2, the monolayer heat-insulating pipe road structure of seabed transfer oil, rock gas, water or mixed transportation of oil and gas comprises: first layer: conveyance conduit 1 is to be made of steel pipe.The second layer is the outer surface coating one deck corrosion-inhibiting coating 2 at conveyance conduit 1, is to be made of binder and clinkery epoxy powder (FBE), plays antisepsis.The 3rd layer is thermal insulation layer 3, is coated on the outer surface of corrosion-inhibiting coating 2, is to be made of polyurethane material.The 4th layer is polyethylene protective tube 4, is coated on the outer surface of thermal insulation layer.Layer 5 is a concrete layer 6, is coated on the outer surface of polyethylene protective tube 4, is to be mixed by steel wire 5 and concrete, plays the counterweight effect.Closely cooperate between above-mentioned each layer and constitute a whole composite pipe.At the sealing end cap 7 of the port of pipeline suit one ladder dress, adopt high density polyethylene (HDPE) (HDPE) material to make, play waterproof action as the tarpaulin of pipeline.Above-mentioned pipeline configuration is once prefabricated forming in the factory of land.Composite pipe after prefabricated is transported to the job site successively by one, and per two joints are implemented welding to after connecting with conveyance conduit 1.Conveyance conduit 1 after welding coats pyrocondensation belt at the node place again, coats sheet iron outside concrete layer 6, and work such as casting water chestnut fat just can carry out submarine laying after node handled.
In sum, the utility model is owing to the major part work of tubulation process is finished in the land prefabrication, after transporting to the offshore construction scene, only need the internal layer conveying steel pipe is welded, greatly reduce the operation on the sea time, accelerate site operation speed, also reduced cost simultaneously, improved efficient.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
In sum, the utility model is on structural design, use practicability and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, have novelty, creativeness, practicability, the regulation that meets relevant novel patent requirement is so mention application in accordance with the law.
Claims (6)
1, the monolayer heat-insulating pipe road structure of a kind of seabed transfer oil, rock gas, water or mixed transportation of oil and gas, comprising: first layer is a conveying steel pipe, it is characterized in that:
Also comprise: the second layer, the 3rd layer, the 4th layer and layer 5, wherein
The second layer is the outer surface coating one deck corrosion-inhibiting coating at conveying steel pipe;
The 3rd layer is polyurethane insulation coating, is coated on the outer surface of corrosion-inhibiting coating;
The 4th layer is the polyethylene protective tube, is coated on the outer surface of thermal insulation layer;
The layer 5 concrete layer is coated on the outer surface of polyethylene protective tube;
Closely cooperate between above-mentioned each layer and constitute a whole composite pipe.
2, the monolayer heat-insulating pipe road structure of seabed according to claim 1 transfer oil, rock gas, water or mixed transportation of oil and gas; it is characterized in that: described polyethylene protective tube closely is connected with polyurethane insulation coating and concrete layer, and the polyethylene protective tube is made by high-density polyethylene material and constituted.
3, the monolayer heat-insulating pipe road structure of seabed according to claim 1 transfer oil, rock gas, water or mixed transportation of oil and gas, it is characterized in that: described corrosion-inhibiting coating is to be made of binder and clinkery epoxy powder material.
4, the monolayer heat-insulating pipe road structure of seabed according to claim 1 transfer oil, rock gas, water or mixed transportation of oil and gas is characterized in that: described concrete layer adopts steel wire and concrete to mix.
5, according to the monolayer heat-insulating pipe road structure of claim 1,2,3 or 4 described seabed transfer oil, rock gas, water or mixed transportation of oil and gas, it is characterized in that: at the stepped sealing end cap of the port of pipeline suit one.
6, seabed according to claim 5 transfer oil, rock gas, water or mixed transportation of oil and gas monolayer heat-insulating pipe road structure is characterized in that: described stair-stepping sealing end cap adopts high-density polyethylene material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025290 CN2911362Y (en) | 2006-01-27 | 2006-01-27 | Single layer thermal insulation pipeline structure for offshore transportation of petroleum, natural gas, water and/or oil-gas mixed transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025290 CN2911362Y (en) | 2006-01-27 | 2006-01-27 | Single layer thermal insulation pipeline structure for offshore transportation of petroleum, natural gas, water and/or oil-gas mixed transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2911362Y true CN2911362Y (en) | 2007-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620025290 Expired - Fee Related CN2911362Y (en) | 2006-01-27 | 2006-01-27 | Single layer thermal insulation pipeline structure for offshore transportation of petroleum, natural gas, water and/or oil-gas mixed transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2911362Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620065A (en) * | 2012-04-10 | 2012-08-01 | 中国海洋石油总公司 | Anti-corrosion counterweight pipe capable of preventing counterweight layer from shedding and method for manufacturing anti-corrosion counterweight pipe |
| CN104482318A (en) * | 2014-10-29 | 2015-04-01 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipe |
| CN104728553A (en) * | 2015-01-20 | 2015-06-24 | 中国石油天然气集团公司 | Submarine pipeline additional weight layer opening repairing structure |
| CN105299338A (en) * | 2015-11-07 | 2016-02-03 | 江鹏财 | Heat preservation heating power composite pipe |
| CN106764118A (en) * | 2015-11-23 | 2017-05-31 | 青岛大仓防腐有限公司 | A kind of intelligent heat preserving pipe |
| CN110513544A (en) * | 2019-08-29 | 2019-11-29 | 中国海洋石油集团有限公司 | A kind of pipeline suitable for conveying ultralow temperature medium |
-
2006
- 2006-01-27 CN CN 200620025290 patent/CN2911362Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620065A (en) * | 2012-04-10 | 2012-08-01 | 中国海洋石油总公司 | Anti-corrosion counterweight pipe capable of preventing counterweight layer from shedding and method for manufacturing anti-corrosion counterweight pipe |
| CN104482318A (en) * | 2014-10-29 | 2015-04-01 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipe |
| CN104728553A (en) * | 2015-01-20 | 2015-06-24 | 中国石油天然气集团公司 | Submarine pipeline additional weight layer opening repairing structure |
| CN105299338A (en) * | 2015-11-07 | 2016-02-03 | 江鹏财 | Heat preservation heating power composite pipe |
| CN106764118A (en) * | 2015-11-23 | 2017-05-31 | 青岛大仓防腐有限公司 | A kind of intelligent heat preserving pipe |
| CN110513544A (en) * | 2019-08-29 | 2019-11-29 | 中国海洋石油集团有限公司 | A kind of pipeline suitable for conveying ultralow temperature medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 Termination date: 20120127 |