CN106968609A - A kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer - Google Patents
A kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer Download PDFInfo
- Publication number
- CN106968609A CN106968609A CN201710256414.4A CN201710256414A CN106968609A CN 106968609 A CN106968609 A CN 106968609A CN 201710256414 A CN201710256414 A CN 201710256414A CN 106968609 A CN106968609 A CN 106968609A
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- China
- Prior art keywords
- layer
- epoxy resin
- fiber
- wearing layer
- carbon
- 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.)
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Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 28
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 44
- 239000003822 epoxy resin Substances 0.000 claims abstract description 40
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 40
- -1 polypropylene Polymers 0.000 claims abstract description 37
- 239000004743 Polypropylene Substances 0.000 claims abstract description 34
- 229920001155 polypropylene Polymers 0.000 claims abstract description 34
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 21
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 238000005299 abrasion Methods 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000003082 abrasive agent Substances 0.000 abstract description 7
- 230000021615 conjugation Effects 0.000 abstract description 4
- 238000007598 dipping method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000005086 pumping Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010181 polygamy Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention belongs to oil production equipment field, more particularly to a kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer, including carbon fiber core, wearing layer and epoxy resin layer, roving layer is provided with the outside of carbon fiber core, in the outside of coarse sands layer, wearing layer is set, spun yarn layer is provided with the outside of wearing layer, described epoxy resin layer is arranged on the outside of spun yarn layer；Described roving layer is made up of fineness of 3000D aramid fiber, and described wearing layer is formed by the polypropylene fibre bar cladding of flocculence, and described spun yarn layer is made up of fineness of 1100 aramid fiber；The length direction of described carbon fiber, aramid fiber and polypropylene fibre bar is consistent with the axis direction of sucker rod.The polypropylene fibre that the present invention is used is flocculence structure, epoxy resin can be more fully immersed between every fibre single thread in polypropylene fibre bar, therefore high-abrasive material and the conjugation of epoxy resin and the dipping of epoxy resin are greatly improved, so that the anti-wear performance of high-abrasive material is given full play to.
Description
Technical field
Continuously pumped the invention belongs to oil production equipment field, more particularly to a kind of carbon fiber of built-in continuous cotton-shaped wearing layer
Bar.
Background technology
Carbon-fiber continuous rod, is the Novel sucker rod being applied in recent years on oil pumper, is pumped with traditional steel
Bar is compared, and carbon fibre pumping rod has tensile strength big, and construction technology is simple, short construction period, the low plurality of advantages of cost.So
And, the anti-wear performance for the carbon-fiber continuous rod that oil field has been applied is poor, and service life has much room for improvement.
To solve the above problems, scientific research personnel have developed a series of novel carbon fiber sucker rod, these Novel sucker rods
Mainly improve the anti-wear performance of sucker rod by three kinds of modes：
One is to add abrasion resistant particles in the epoxy resin of sucker rod, passes through the hard, wear-resistant particle such as carborundum, boron nitride
Carry out improve wearability, but there is obvious deficiency in the sucker rod produced in this way, because：Filled into epoxy resin wear-resisting
The homogeneity that abrasion resistant particles are distributed in epoxy resin is difficult to ensure that during particle, also can not just ensure the complete of wearing layer
Property, therefore there is anti-wear performance blind area in this sucker rod, have a strong impact on the overall wear resistance energy of sucker rod.
Two be to increase the outer wear layers such as polyethylene on the surface of sucker rod, for such a sucker rod, although polyethylene layer has
There is preferable anti-wear performance, but hardness is smaller, is easily scratched and damaged by the borehole wall in operation process.Meanwhile, polyethylene layer
There is the possibility come off during sucker rod use.
Three are the problem of being and abrasion resistant fibrous layer or wear-resistant fabric layer, this structure are set in sucker rod, into the fibre of stock
The impregnation limited capacity of dimension or fabric, it is poor with the conjugation of epoxy resin and the dipping of epoxy resin, cause structure
Anti-wear performance into abrasion resistant fibrous or wear-resistant fabric high-abrasive material is had a greatly reduced quality.
Therefore, it is necessary to research and develop a kind of new carbon-fiber continuous rod to solve carbon fiber present in prior art
The problem of coiled rod anti-wear performance is poor.
The content of the invention
The present invention provides a kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer, to solve above-mentioned background technology
The problem of middle proposition.
Technical problem solved by the invention is realized using following technical scheme：The present invention provides a kind of built-in continuous wadding
The carbon-fiber continuous rod of shape wearing layer, including carbon fiber core, wearing layer and epoxy resin layer, the outside of carbon fiber core
Roving layer is provided with, is set in the outside of coarse sands layer and spun yarn layer, described epoxy resin is provided with the outside of wearing layer, wearing layer
Layer is arranged on the outside of spun yarn layer；
Described roving layer is made up of fineness of 3000D aramid fiber, described wearing layer by flocculence polypropylene fibre bar
Cladding is formed, and described spun yarn layer is made up of fineness of 1100 aramid fiber；Described carbon fiber, aramid fiber and polypropylene fibre
The length direction of bar is consistent with the axis direction of sucker rod；
The weight/mass percentage composition of carbon fiber is 28%-30%, the quality percentage of the aramid fiber in roving layer in sucker rod
Content is 22%-24%, and the weight/mass percentage composition of polypropylene fibre bar is that the quality percentage of the aramid fiber in 3%-4%, spun yarn layer contains
Measure as 10%-12%, remaining composition is epoxy resin；
The specification of described carbon fiber is T300/6K；
Admixture has abrasion resistant particles in described epoxy resin layer.
Preferably, the cross sectional shape of described sucker rod is strip.
Preferably, the cross sectional shape of described sucker rod is ellipse.
Beneficial effects of the present invention are：The present invention creatively employs polypropylene fibre wearing layer built in the flocculence of uniqueness, and
Abrasion resistant particles are filled in epoxy resin layer simultaneously, this sucker rod has the following advantages that,
1st, it is strip bandlet structure as the polypropylene fibre of wearing layer, length direction of the polypropylene fibre bar along sucker rod is set, polypropylene fibre bar
Width be equal to roving layer on the outside of the face of cylinder girth, with epoxy resin add abrasion resistant particles abrasion-proof structure compared with, with
Polypropylene fibre is uniform, continuous, complete for the wearing layer of core, therefore effectively eliminates performance blind area, improves sucker rod
Overall wear resistance energy.
2nd, the present invention is provided with inside and outside two layers of abrasion-proof structure (epoxy resin layer and wearing layer that have filled abrasion resistant particles), mixes
Although added the epoxy resin layer of abrasion resistant particles has the possibility that there is performance blind area, but still wearing layer can be prevented locally a wide range of
Abrasion, so as to protect wearing layer.
3rd, the polypropylene fibre that the present invention is used is flocculence structure, with the abrasion resistant fibrous or wear-resistant fabric of the prior art into stock
Compare, epoxy resin can be more fully immersed between every fibre single thread in polypropylene fibre bar, therefore high-abrasive material and epoxy
The conjugation of resin and the dipping of epoxy resin are greatly improved, so that the anti-wear performance of high-abrasive material is able to fully send out
Wave.
In addition, in existing carbon fibre pumping rod, it is past in order to increase the anti-splitting parameter and anti-shear performance of sucker rod
Toward to wind at least layer of glass in the outside of carbon fiber core, this mode can undoubtedly increase answering for product processes
Polygamy and production difficulty.However, for carbon fibre pumping rod of the present invention, in epoxy resin and the knot of polypropylene fiber
In zoarium, polypropylene fiber monofilament serves the effect of reinforcing fiber, so that the combination tool of epoxy resin and polypropylene fiber
There are larger specific strength and specific modulus, this characteristic causes the anti-splitting parameter and anti-shear performance of sucker rod to obtain significantly
Improve, so as to simplify process equipment, reduce technology difficulty.
4th, when manufacturing sucker rod of the present invention, each operation is only needed by the pultrusion mould in existing equipment
Tool, you can shaping, and no longer need to be equipped with the machines such as braider, wrapping machine, further improve the production technology of the present invention.
Brief description of the drawings
Fig. 1 is the sectional view of the present invention；
Fig. 2 is sectional view when section of the invention is strip；
Fig. 3 is the position relationship schematic diagram of roving layer and the polypropylene fibre bar as wearing layer.
In figure：1- carbon fiber cores, 2- roving layers, 3- wearing layers, 4- spun yarns layer, 5- epoxy resin layers.
Embodiment
The present invention is described further below in conjunction with accompanying drawing：
The present embodiment includes carbon fiber core 1, wearing layer 3 and epoxy resin layer 5, and this is carbon fiber oil pumping in the prior art
The basic structure of bar.
The outside of carbon fiber core 1 is provided with roving layer 2, is set in the outside of coarse sands layer 2 outside wearing layer 3, wearing layer 3
Side is provided with spun yarn layer 4, and described epoxy resin layer 5 is arranged on the outside of spun yarn layer 4.Wherein, the effect of carbon fiber core 1 is
Bear most of drag load；The effect of roving layer 2 and spun yarn layer 4 is to share drag load jointly with carbon fiber core 1, is reduced
The consumption of carbon fiber, so that the production for reducing sucker rod rises this, meanwhile, the aramid fiber of composition roving layer 2 and spun yarn layer 4 has
Preferable anti-wear performance, helps to improve the anti-wear performance of sucker rod.The effect of wearing layer 3 is improve wearability energy.
Described wearing layer 3 is formed by the polypropylene fibre bar cladding of flocculence.It is strip bandlet knot as the polypropylene fibre of wearing layer 3
Structure, length direction of the polypropylene fibre bar along sucker rod is set, and the width of polypropylene fibre bar is equal to the girth on the outside face of cylinder of roving layer 2, with
The abrasion-proof structure of addition abrasion resistant particles is compared in epoxy resin, the wearing layer 3 by core of polypropylene fibre evenly, it is more continuous, completeer
It is whole, therefore performance blind area is effectively eliminated, improve the overall wear resistance energy of sucker rod.The polypropylene fibre that the present invention is used is flocculence
Structure, compared with the abrasion resistant fibrous or wear-resistant fabric of the prior art into stock, epoxy resin can more fully be immersed in third
Between every fibre single thread in synthetic fibre bar, therefore polypropylene fibre and the conjugation of epoxy resin and epoxy resin as high-abrasive material
Dipping greatly improve, polypropylene fibre and epoxy resin can be combined farthest, so that the anti-wear performance of high-abrasive material
Given full play to.
In the present invention, aramid fiber is divided into two kinds of coarse sand and spun yarn, and the difference of coarse sand and spun yarn is：With spun yarn phase
Than in the case where consumption is certain, required yarn axis is less during using coarse sand, and the space of occupancy is also fewer, the production cycle
Also it is shorter, but because the impregnation performance of coarse sand is not so good as spun yarn, therefore the anti-wear performance of roving layer 2 is not so good as spun yarn layer 4.In this hair
In bright, roving layer 2 is that (D is fineness unit to 3000D by fineness：Danier) aramid fiber be made, described spun yarn layer 4 is by thin
Spend and be made up of 1100D aramid fiber.By using the different aramid fiber of two kinds of fineness, production technology has been taken into account and wear-resisting
Performance, is that sucker rod obtains preferable combination property.
The length direction of described carbon fiber, aramid fiber and polypropylene fibre bar is consistent with the axis direction of sucker rod, this
One design feature can greatly simplify the technological process of production of sucker rod, reduce technology difficulty, and quality stability is also easier to ensure.
When manufacturing sucker rod of the present invention, each operation is only needed by the pultrusion die in existing equipment, you can shaping,
And no longer need to be equipped with the machines such as braider, wrapping machine, injection machine, compressed air shotblasting machine, the simplification degree to technique is very notable.
The weight/mass percentage composition of carbon fiber is 28%-30%, the quality percentage of the aramid fiber in roving layer 2 in sucker rod
Content is 22%-24%, and the weight/mass percentage composition of polypropylene fibre bar is that the quality percentage of the aramid fiber in 3%-4%, spun yarn layer 4 contains
Measure as 10%-12%, remaining composition is epoxy resin, by controlling the weight/mass percentage composition of each part, can be obtained comprehensive
Close the sucker rod that performance meets design requirement.
To ensure enough tensile strength, the specification of carbon fiber of the prior art is 12K, but in the present invention,
To reduce the quantity of yarn axis, the specification for the carbon fiber that reduction reduction yarn axis is used to space hold, the present invention is T300/
6K so that the quantity of yarn axis reduces half, the space that yarn axis takes decreases half.
Admixture has abrasion resistant particles in described epoxy resin layer 5.The present invention is provided with inside and outside two layers of abrasion-proof structure (admixture
The epoxy resin layer 5 and wearing layer 3 of abrasion resistant particles), although the epoxy resin layer 5 for having filled abrasion resistant particles, which has, has performance blind area
Possibility, but still the local a wide range of abrasion of wearing layer 3 can be prevented, so as to protect wearing layer 3.
Preferably, the cross sectional shape of described sucker rod is strip or ellipse, is circle with section of the prior art
The sucker rod structure of shape is compared, in the case of area of section identical, the sucker rod of the cross sectional shape of strip or ellipse
Minimum bending radius is smaller, so as to significantly reduce the diameter of the wheel disc for coiling sucker rod so that the transhipment of sucker rod, peace
The volume of dress and construction equipment is greatly reduced.
At the beginning of the design of the present invention, how designer produces to existing carbon-fiber continuous rod if contemplating
The problem of equipment is simplified.In existing carbon fibre pumping rod, in order to increase the anti-splitting parameter of sucker rod and anti-shearing
Performance, often will wind at least layer of glass, this mode can undoubtedly increase production in the outside of carbon fiber core 1
The complexity and production difficulty of technique.However, for carbon fibre pumping rod of the present invention, in epoxy resin and polypropylene fibre
In the combination of fiber, polypropylene fiber monofilament serves the effect of reinforcing fiber, so that epoxy resin and polypropylene fiber
Combination has larger specific strength and a specific modulus, and this characteristic causes the anti-splitting parameter and anti-shear performance of sucker rod
To significantly improving, so as to simplify process equipment, technology difficulty is reduced.
Claims (3)
1. a kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer, including carbon fiber core (1), wearing layer (3) and
Epoxy resin layer (5), it is characterised in that：Roving layer (2), the outside in coarse sands layer (2) are provided with the outside of carbon fiber core (1)
Set and spun yarn layer (4) is provided with the outside of wearing layer (3), wearing layer (3), described epoxy resin layer (5) is arranged on spun yarn layer
(4) outside；
Described roving layer (2) is made up of fineness of 3000D aramid fiber, described wearing layer (3) by flocculence polypropylene fibre
Bar cladding is formed, and described spun yarn layer (4) is made up of fineness of 1100 aramid fiber；Described carbon fiber, aramid fiber with
And the length direction of polypropylene fibre bar is consistent with the axis direction of sucker rod；
The weight/mass percentage composition of carbon fiber is 28%-30% in sucker rod, and the quality percentage of the aramid fiber in roving layer (2) contains
Measure as 22%-24%, the weight/mass percentage composition of polypropylene fibre bar is that the quality percentage of the aramid fiber in 3%-4%, spun yarn layer (4) contains
Measure as 10%-12%, remaining composition is epoxy resin；
The specification of described carbon fiber is T300/6K；
Admixture has abrasion resistant particles in described epoxy resin layer (5).
2. a kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer according to claim 1, it is characterised in that：
The cross sectional shape of described sucker rod is strip.
3. a kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer according to claim 1, it is characterised in that：
The cross sectional shape of described sucker rod is ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710256414.4A CN106968609A (en) | 2017-04-19 | 2017-04-19 | A kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710256414.4A CN106968609A (en) | 2017-04-19 | 2017-04-19 | A kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106968609A true CN106968609A (en) | 2017-07-21 |
Family
ID=59333818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710256414.4A Withdrawn CN106968609A (en) | 2017-04-19 | 2017-04-19 | A kind of carbon-fiber continuous rod of built-in continuous cotton-shaped wearing layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968609A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104733A (en) * | 2018-02-01 | 2018-06-01 | 山东中恒景新碳纤维科技发展有限公司 | Pumping rod of composite carbon fiber material with autonomous repair function |
| CN109488219A (en) * | 2018-11-28 | 2019-03-19 | 胜利油田新大管业科技发展有限责任公司 | Multilayered structure corrosion-resistant and high-temperature resistant composite continuous sucker rod and preparation process |
-
2017
- 2017-04-19 CN CN201710256414.4A patent/CN106968609A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104733A (en) * | 2018-02-01 | 2018-06-01 | 山东中恒景新碳纤维科技发展有限公司 | Pumping rod of composite carbon fiber material with autonomous repair function |
| CN108104733B (en) * | 2018-02-01 | 2024-02-23 | 山东中恒景新碳纤维科技发展有限公司 | Carbon fiber composite sucker rod with autonomous repair function |
| CN109488219A (en) * | 2018-11-28 | 2019-03-19 | 胜利油田新大管业科技发展有限责任公司 | Multilayered structure corrosion-resistant and high-temperature resistant composite continuous sucker rod and preparation process |
| CN109488219B (en) * | 2018-11-28 | 2024-02-02 | 胜利新大新材料股份有限公司 | Corrosion-resistant high-temperature-resistant composite material continuous sucker rod with multilayer structure and preparation process thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170721 |