CN201050310Y - Flexible composite high pressure vertical tube - Google Patents
Flexible composite high pressure vertical tube Download PDFInfo
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- CN201050310Y CN201050310Y CNU2007201480995U CN200720148099U CN201050310Y CN 201050310 Y CN201050310 Y CN 201050310Y CN U2007201480995 U CNU2007201480995 U CN U2007201480995U CN 200720148099 U CN200720148099 U CN 200720148099U CN 201050310 Y CN201050310 Y CN 201050310Y
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Abstract
The utility model discloses a flexible composite high-pressure riser, which comprises a core layer, a tensile layer and a compression layer. The core layer is in the forming from the polymer extrusion, and the tensile layer is composed of a plurality of wires or high strength fibres arranged along the axial direction of the riser. The compression layer is composed of the wires in spiral winding. The tensile layer or the compression layer is bonded or coated on the outside of the core layer. On the outside of the tensile layer or the compression layer, at least one tensile layer or compression layer is bonded or coated again through a polymer bonding layer. At last, the outside of the riser is coated with an covering layer. The flexible composite high-pressure riser of the utility model is simple in structure with higher compression and tensile strength, which is also corrosion resistant.
Description
Technical field
The utility model relates to a kind of flexible composite high pressure vertical tube that is used for oil exploitation in the oil well that is installed in.
Background technology
At present high pressure vertical tube is mainly used in tubing and casing and is installed in the oil well, because the usually oil well depth is gone into underground thousands of rice, so high pressure vertical tube will bear very high pressure, also wants simultaneously to bear very high pulling force, so that tractive and lay high pressure vertical tube to the down-hole.Existing high pressure vertical tube adopts the steel tubing and casing usually, to guarantee above-mentioned resistance to compression, resistance to tension.But this steel tubing and casing in use, owing to contain corrosive gas such as carbon dioxide and hydrogen sulfide usually in the oil gas, is easy to generate corrosion, influences its application life, even can cause great security incident.
The utility model content
The purpose of this utility model is at the problems referred to above, provides a kind of simple in structure, has higher resistance to compression, tensile strength, and corrosion resistant flexible composite high pressure vertical tube.
For achieving the above object, the utility model adopts following technical scheme: a kind of flexible composite high pressure vertical tube, comprise inner sandwich layer, tensile layer and resistance to compression layer, described inner sandwich layer is by polymer-extruded shaping, described tensile layer is made of many steel wires that axially are provided with along standpipe or high strength fibre, described resistance to compression layer is made of the steel wire that spiral twines, the bonding described inner sandwich layer outside that is coated on of described tensile layer or resistance to compression layer, in this tensile layer or resistance to compression layer outside by the bonding again coating of polymer-bonded layer one deck resistance to compression layer or tensile layer at least, at last at standpipe outside coating overlay.
The wire rope of the steel wire of described tensile layer for being entwined by finer wire.
The high strength fibre of described tensile layer is aramid fiber, polyethylene fibre, polyster fibre, nylon fiber and carbon fiber.
Described polymer is polyethylene, polyvinyl chloride or nylon.
Described tensile layer is coated on the outside of inner sandwich layer, and described resistance to compression layer is coated on the outside of tensile layer.
Described tensile layer is bonded in inner sandwich layer by hot melt or adhesive means, extrudes coated polymer again, twines the resistance to compression layer then, extrude coated polymer again, the step of twining, coating the resistance to compression layer repeats 2～4 times, forms 2～4 layers of resistance to compression layer, and each adjacent resistance to compression helical layer rotation direction is opposite.
Described tensile layer and resistance to compression layer replace the bonding inner sandwich layer outside that is coated on, and form 2～4 layers of tensile layer and 2～4 layers of resistance to compression layer respectively.
Because the utility model flexible composite high pressure vertical tube is provided with the tensile layer that is made of steel wire or high strength fibre vertically, increase the tensile strength of standpipe greatly, and the resistance to compression layer that the steel wire that is twined by spiral constitutes can increase the compressive strength of standpipe, can guarantee the utility model flexible composite high pressure vertical tube tension, compressive strength in use, simultaneously its inner sandwich layer and bonding clad are made and can avoid etchant gas in the oil gas to the erosion of body by polymer, its long service life, safe and reliable, cost is also lower.In addition, this flexible composite high pressure vertical tube can whole manufacturing, reduces jointing, installs, deposits, transports also more convenient.The steel wire of described tensile layer adopts the wire rope that is entwined by finer wire, and its pliability is better.Tensile layer adopts high strength fibre, its intensity height but weight is lighter.
Description of drawings
Fig. 1 is the structural representation of a kind of flexible composite high pressure vertical tube of the utility model.
Fig. 2 is the structural representation of the another kind of flexible composite high pressure vertical tube of the utility model.Among the figure
1. inner sandwich layer 2. tensile layers 3. resistance to compression layers are 4. polymer-bonded layers
5. overlay
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, flexible composite high pressure vertical tube of the present utility model, comprise inner sandwich layer 1, tensile layer 2 and resistance to compression layer 3, described inner sandwich layer 1 is by polymer-extruded shaping, described tensile layer 2 is made of many steel wires that axially are provided with along standpipe or high strength fibre, described resistance to compression layer 3 is made of the steel wire that spiral twines, described tensile layer 2 or resistance to compression layer 3 bonding described inner sandwich layer 1 outside that is coated on, by the 4 bonding again coating of polymer-bonded layer one deck resistance to compression layer 3 or tensile layer 2 at least, coat overlay 5 in the standpipe outside in this tensile layer 2 or resistance to compression layer 3 outside at last.
The steel wire of described tensile layer 2 can be the wire rope that is entwined by finer wire, and it is better flexible.Described tensile layer 2 also can be high strength fibre, as is aramid fiber, polyethylene fibre, polyster fibre, nylon fiber and carbon fiber, and its intensity height, in light weight can alleviate the weight of high pressure vertical tube greatly.Described polymer can be polyethylene, polyvinyl chloride or nylon, can anti-carbon dioxide and the corrosion of corrosive gas such as hydrogen sulfide.
In the embodiment shown in fig. 1, described tensile layer 2 is coated on the outside of inner sandwich layer 1, and described resistance to compression layer 3 is coated on the outside of tensile layer 2.Described tensile layer 2 is bonded in inner sandwich layer 1 by hot melt or adhesive means, extrude coated polymer adhesive layer 4 again, twine resistance to compression layer 3 along the dextrorotation direction then, extrude coated polymer adhesive layer 4 again, twine resistance to compression layer 3 to left hand direction again, form the three layer construction of 2, two layers of resistance to compression layer 3 of one deck tensile layer, coat overlay 5 in the outside of resistance to compression layer 3 at last, make high pressure vertical tube of the present utility model.Can be according to the pressure requirement of high pressure vertical tube, the step of above-mentioned coating resistance to compression layer 3 is repeated 2～4 times, form 2～4 layers of resistance to compression layer, wherein each adjacent resistance to compression helical layer rotation direction is opposite.
As shown in Figure 2, also can adopt earlier and twine resistance to compression layer 3, extrude coated polymer adhesive layer 4 at inner sandwich layer 1, bonding again tensile layer 2, coated polymer adhesive layer 4 twines resistance to compression layer 3 at last, coat overlay 5, form the high pressure vertical tube that has one deck tensile layer 2, two layers of resistance to compression layer 3.Also can make tensile layer 2 and resistance to compression layer 3 replace bonding inner sandwich layer 1 outside that is coated on, form the high pressure vertical tube that has 2～4 layers of tensile layer and 2～4 layers of resistance to compression layer respectively according to the working pressure needs.
With way of example the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment the protection domain that all any improvement done based on the utility model or modification all belong to the utility model claim.
Claims (7)
1. flexible composite high pressure vertical tube, it is characterized in that: comprise inner sandwich layer, tensile layer and resistance to compression layer, described inner sandwich layer is by polymer-extruded shaping, described tensile layer is made of many steel wires that axially are provided with along standpipe or high strength fibre, described resistance to compression layer is made of the steel wire that spiral twines, the bonding described inner sandwich layer outside that is coated on of described tensile layer or resistance to compression layer, in this tensile layer or resistance to compression layer outside by the bonding again coating of polymer-bonded layer one deck resistance to compression layer or tensile layer at least, at last at standpipe outside coating overlay.
2. flexible composite high pressure vertical tube according to claim 1 is characterized in that: the wire rope of the steel wire of described tensile layer for being entwined by finer wire.
3. flexible composite high pressure vertical tube according to claim 1 is characterized in that: the high strength fibre of described tensile layer is aramid fiber, polyethylene fibre, polyster fibre, nylon fiber and carbon fiber.
4. flexible composite high pressure vertical tube according to claim 1 is characterized in that: described polymer is polyethylene, polyvinyl chloride or nylon.
5. flexible composite high pressure vertical tube according to claim 1 is characterized in that: described tensile layer is coated on the outside of inner sandwich layer, and described resistance to compression layer is coated on the outside of tensile layer.
6. flexible composite high pressure vertical tube according to claim 5, it is characterized in that: described tensile layer is bonded in inner sandwich layer by hot melt or adhesive means, extrude coated polymer again, twine the resistance to compression layer then, extrude coated polymer again, the step of twining, coating the resistance to compression layer repeats 2～4 times, forms 2～4 layers of resistance to compression layer, and each adjacent resistance to compression helical layer rotation direction is opposite.
7. flexible composite high pressure vertical tube according to claim 1 is characterized in that: described tensile layer and resistance to compression layer replace the bonding inner sandwich layer outside that is coated on, and form 2～4 layers of tensile layer and 2～4 layers of resistance to compression layer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201480995U CN201050310Y (en) | 2007-05-30 | 2007-05-30 | Flexible composite high pressure vertical tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201480995U CN201050310Y (en) | 2007-05-30 | 2007-05-30 | Flexible composite high pressure vertical tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050310Y true CN201050310Y (en) | 2008-04-23 |
Family
ID=39336794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201480995U Expired - Lifetime CN201050310Y (en) | 2007-05-30 | 2007-05-30 | Flexible composite high pressure vertical tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050310Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054888B (en) * | 2007-05-30 | 2010-06-02 | 孟庆义 | Flexible composite high pressure vertical tube |
| CN106761442A (en) * | 2016-12-20 | 2017-05-31 | 中国石油天然气集团公司 | Fill-type high strength fibre rubber outer assembled casing |
-
2007
- 2007-05-30 CN CNU2007201480995U patent/CN201050310Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054888B (en) * | 2007-05-30 | 2010-06-02 | 孟庆义 | Flexible composite high pressure vertical tube |
| CN106761442A (en) * | 2016-12-20 | 2017-05-31 | 中国石油天然气集团公司 | Fill-type high strength fibre rubber outer assembled casing |
| CN106761442B (en) * | 2016-12-20 | 2019-06-11 | 中国石油天然气集团公司 | Fill-type high strength fibre rubber outer assembled casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080423 |
|
| CX01 | Expiry of patent term |