CN106337659A - Multilayered abrasion-resisting carbon fiber continuous sucker rod with graphene coating - Google Patents
Multilayered abrasion-resisting carbon fiber continuous sucker rod with graphene coating Download PDFInfo
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- CN106337659A CN106337659A CN201610873219.1A CN201610873219A CN106337659A CN 106337659 A CN106337659 A CN 106337659A CN 201610873219 A CN201610873219 A CN 201610873219A CN 106337659 A CN106337659 A CN 106337659A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 41
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 19
- 238000000576 coating method Methods 0.000 title claims abstract description 11
- 239000011248 coating agent Substances 0.000 title abstract 2
- 239000003365 glass fiber Substances 0.000 claims abstract description 55
- 239000003822 epoxy resin Substances 0.000 claims abstract description 20
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims description 71
- 238000004804 winding Methods 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 12
- 229920000573 polyethylene Polymers 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 11
- -1 polyethylene Polymers 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 11
- 239000004593 Epoxy Substances 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 241001274660 Modulus Species 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 150000002632 lipids Chemical class 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010030 laminating Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000003301 hydrolyzing effect Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000218691 Cupressaceae Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 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
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- 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)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention belongs to the field of oilfield oil extraction equipment and particularly relates to a multilayered abrasion-resisting carbon fiber continuous sucker rod with a graphene coating. The multilayered abrasion-resisting carbon fiber continuous sucker rod comprises a carbon fiber core body, a glass fiber layer wrapping the outer side of the carbon fiber core body and an epoxy resin layer wrapping the outer side of the glass fiber layer; the carbon fiber core body is composed of a resin-stuck carbon fiber bundle; the glass fiber layer is composed of a wound glass fiber layer and a longitudinal glass fiber layer; the wound glass fiber layer is spirally wound on the outer side of the carbon fiber core body; and glass fibers for forming the longitudinal glass fiber layer are parallel to carbon fibers. According to the multilayered abrasion-resisting carbon fiber continuous sucker rod, the wound glass fiber layer is arranged; the wound glass fiber layer can be used for bundling each thread of carbon fibers in the carbon fiber core body and the anti-twisting strength of the sucker rod is effectively enhanced; and meanwhile, the wound glass fiber layer is used for wrapping the carbon fiber core body and the longitudinal glass fiber layer can be effectively prevented from being doped with the carbon fiber core body, so that the roundness of the carbon fiber core body is guaranteed and the strength weakness is eliminated.
Description
Technical field
The invention belongs to oil field equipment field, it is fine that more particularly, to a kind of multi-layer wear-resistant with graphite ene coatings wipes carbon
Dimension coiled rod.
Background technology
Sucker rod is conventional a kind of equipment in process of oil production, during oil recovery, drives the oil pumping of down-hole by sucker rod
Pump pump rod pumps, thus by liquid pumpings such as ground in the layer oil to ground.In use, generally will take out
Beam hanger connects supreme km, in this case, the load of sucker rod itself suspending weight to be born and oil well pump, therefore bears
Pulling force is than larger.How existing sucker rod is made up of steel, but steel have the physical imperfections such as weight is big, perishable, easy to wear,
The loss making sucker rod remains high.In addition, existing sucker rod is mostly segmentation structure, applies man-hour requirement and pacify paragraph by paragraph
Dress, therefore efficiency of construction is than relatively low.
In order to solve the above problems, scientific research personnel has invented a kind of carbon-fiber continuous rod, and this sucker rod utilizes carbon
Fiber quality is light, the superior physical property such as good toughness, tensile strength height, solves the problems referred to above.But this sucker rod is also deposited
In some defects: 1, the torsional strength of existing carbon fibre pumping rod is poor；2nd, the carbon in existing carbon fibre pumping rod is fine
The trend of peacekeeping glass fibre is all identical with the length direction of sucker rod, during production, should be coated on the glass outside carbon fiber
Fiber is easy to mix in carbon fiber bundle, thus adversely affecting to the intensity of sucker rod.3rd, existing carbon fibre pumping rod
Outer layer be simple epoxy resin layer, wearability is poor.
Content of the invention
The present invention provides a kind of multi-layer wear-resistant with graphite ene coatings to wipe carbon-fiber continuous rod, to solve the above-mentioned back of the body
The problem proposing in scape technology.
Technical problem solved by the invention employs the following technical solutions to realize: the invention provides a kind of carry graphite
The multi-layer wear-resistant of ene coatings wipes carbon-fiber continuous rod, including carbon fiber core, the external spiral successively of described carbon fiber core
It is wound with winding glass layer a and is wound around glass layer b, be wound around glass layer b and be coated with longitudinal glass layer,
Longitudinal glass layer outer wall is coated with epoxy resin layer, and carbon fiber core is led to by 150/12k---242 root/12k carbon fiber
The carbon fiber bundle crossing epoxy bond is constituted, and more than carbon fiber tensile strength 4950mpa, the percent mass of carbon fiber core contains
Measure as 33.1---28.3%, a diameter of 11--14mm of carbon fiber core, winding glass layer a and winding glass layer b two
The winding screw angle that layer is wound around glass fibre is 45 °, and winding direction is contrary, is wound around glass layer a and is wound around glass fibre
By epoxy bond on carbon fiber core, the percent mass being wound around glass layer a and winding glass layer b contains layer b
Measure as 5.0 5.9%, be wound around glass layer a and to be wound around the winding thickness of glass layer b two-layer be 0.4 0.6mm, indulge
It is arranged in parallel to the glass fibre of glass layer with carbon fiber core, longitudinal glass layer weight/mass percentage composition 32
38%, longitudinal glass layer is made up of 42/2400tex--106 root/2400tex glass fibre, longitudinal glass layer by
Epoxy bond is being wound around glass layer b outer wall, and two terminations of sucker rod are connected with rod connector, rod connector
The pulling force that can bear with the junction of oil pumping club shaft reaches 698kn, and shear strength reaches 92mpa；Tensile modulus of elasticity >=
150gpa.
The outside of the sucker rod in such scheme is additionally provided with polyethylene layer and graphene layer.
In such scheme, in described winding glass layer a, winding glass layer b and longitudinal glass layer
Glass fibre adopts s level alkali-free glass fibre, more than glass fiber strength 2500mpa；Line density 2400 ± 5%tex；Stretching bullet
More than property modulus 88gpa, moisture content is below 0.1%.
160 DEG C of epoxy resin heatproof in such scheme, epoxy resin stretching intensity 60-85mpa, stretch moduluses 2.5-
3.0gpa, percentage elongation 3.5-5.0%, bending strength 100-135mpa, bending moduluses 2.5-3.5gpa.
Present invention additionally comprises rod connector, rod connector is mainly made up of tapered sleeve, trocar sheath and union joint, trocar sheath
It is threaded connection and union joint between, tapered sleeve is encapsulated in trocar sheath union joint, tapered sleeve is circle with the contact surface of trocar sheath
The conical surface, the two ends of described tapered sleeve are respectively machined with an otch, and otch is cut in the axial direction, the plane phase that two otch are located
Mutually vertically, the percentage ratio that the length of otch accounts for tapered sleeve total length is 85%-90%.
The invention has the benefit that
1st, it is provided with two-layer winding glass fibre in opposite direction in sucker rod of the present invention, two-layer is in opposite direction
It is wound around glass fibre and can fetter each stock carbon fiber in carbon fiber core, it is to avoid sucker rod bears each stock carbon fiber during moment of torsion and occurs to divide
From causing sucker rod failure, thus effectively enhancing the torsional strength of sucker rod, meanwhile, with being wound around glass fibre by carbon fiber core
Body wraps up, and can effectively prevent longitudinal glass layer from blending with carbon fiber core, thus ensure that the circularity of carbon fiber core, that is,
Ensure that the uniformity of sucker rod structural strength, eliminate intensity weakness.
2nd, polyethylene layer and graphene layer give sucker rod more excellent anti-wear performance, meanwhile, by sucker rod surface
Setting multiple structure, can avoiding fluid to permeate, delaying resin hydrolyzing, thus preventing sucker rod from damaging because of resin hydrolyzing.Involved
And technology maturation reliable, stability is high.
3rd, Graphene has fabulous anti-wear performance, and when producing, the thickness of graphene layer is minimum, therefore, in sucker rod
In the case that diameter is certain, increase the structure distribution that graphene layer does not interfere with other each layers.
4th, while the bending diameter in sucker rod itself does not increase, using the wearability of Graphene, improve continuous lever
Anti-wear performance.After Graphene wear out failure, thermosetting polyethylene replaces its performance to continue the internal structure of protection sucker rod.And
And heat cured polyethylene is two phase structure with the epoxy resin layer 5 of sucker rod, after thermosetting pe material wear out failure, permissible
By corresponding technique, undamaged portion is carried out peeling off again repairing, increase sucker rod service life.
5th, the present invention is directed to the supporting sucker rod special joint of this design of suker rod, can be by by this rod connector
This sucker rod quickly, stably, is reliably connected with common pumping rod made by steel.
Brief description
Fig. 1 is the structural representation of the sucker rod in the present invention；
Fig. 2 is the structural representation of rod connector；
Fig. 3 is the sectional view of tapered sleeve；
Fig. 4 be in Fig. 3 a to sectional view.
In figure: 1- carbon fiber core, 2- is wound around glass layer a, and 3- is wound around glass layer b, 4- longitudinal direction glass fibre
Layer, 5- epoxy resin layer, 6- polyethylene layer, 7- graphene layer, 8- tapered sleeve, 9- trocar sheath, 10- union joint, 11- otch.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
The present embodiment includes carbon fiber core 1, and carbon fiber core 1 is passed through by 150/12k---242 root/12k carbon fiber
The carbon fiber bundle of epoxy bond is constituted, carbon fiber tensile strength >=4950mpa, the described outer spiral shell successively of carbon fiber core 1
Rotation is wound with winding glass layer a2 and is wound around glass layer b3, is wound around glass layer b3 and is coated with longitudinal glass fibers
Dimension layer 4, longitudinal glass layer 4 outer wall is coated with epoxy resin layer 5.It is wound around glass fibre can fetter in carbon fiber core 1 respectively
Stock carbon fiber, it is to avoid sucker rod bears each stock carbon fiber during moment of torsion and occurs separation to cause sucker rod failure, thus effectively enhancing
Carbon fiber core 1 meanwhile, is wrapped up with being wound around glass fibre, can effectively prevent longitudinal glass fibre by the torsional strength of sucker rod
Layer 4 is blended with carbon fiber core 1, thus ensure that the circularity of carbon fiber core 1, that is, ensure that the uniform of sucker rod structural strength
Property, eliminate intensity weakness.
Carbon fiber core 1 passes through the carbon fiber bundle structure of epoxy bond by 150/12k---242 root/12k carbon fiber
Become, the weight/mass percentage composition of carbon fiber core 1 is 33.1---28.3%, a diameter of 11--14mm of carbon fiber core 1.Every carbon
The monofilament quantity of fiber is an important indicator of carbon fiber, and the bigger cost of monofilament quantity is higher, but intensity is more high pumps simultaneously
Bar also can overstriking.The present invention selects the carbon fiber that monofilament quantity is 12k, while meeting the intensity requirement of coiled rod,
Also taken into account economy.Limited by use environment and production standard, the diameter of coiled rod is usually defined as several solid
Definite value, according to the difference of coiled rod diameter, the quantity of 12k carbon fiber is limited in 150-242 root, can ensure continuously to take out
Reduce production cost while beam hanger intensity, sucker rod integrally also lightened reduce energy consumption it is ensured that coiled rod its
Its layer will not be forced because the diameter of carbon fiber core 1 is excessive to compress, and then affects the overall performance of coiled rod.This
The bright weight/mass percentage composition by carbon fiber core 1 is 33.1---28.3%, and this is that pole is necessary.Radical quilt in carbon fiber
In the case of restriction, it is the restriction to coiled rod quality to the restriction of the weight/mass percentage composition of carbon fiber core 1, is also
Restriction to carbon fiber content in coiled rod and the ratio of other each constituent content.Diameter one timing of coiled rod,
The weight/mass percentage composition of carbon fiber core 1 is higher, and the tensile strength of coiled rod is higher, but the asphalt mixtures modified by epoxy resin in coiled rod
The component such as fat and glass fibre also can be compressed accordingly, thus affecting the performance of these component performances, therefore, carbon fiber core
1 weight/mass percentage composition must be limited in a rational scope.
It is wound around glass layer a2 and the winding screw angle of winding glass layer b3 two-layer winding glass fibre is
45 °, winding direction is contrary, is wound around glass layer a2 and is wound around glass layer b3 by epoxy bond in carbon fiber core
On 1.45 ° is one of industrial design special angle, and in the present invention, 45 ° is optimum winding angle, and winding angle is more than
When 45 °, angle is bigger to be more difficult in technique, and when winding angle is less than 45 °, angle is less, and sucker rod resists moment of torsion
Ability is poorer.It is wound around glass layer a2 and be wound around the winding direction of glass layer b3 on the contrary so that sucker rod is clockwise
Spin up acquisition identical torsional strength with two counterclockwise.
The weight/mass percentage composition being wound around glass layer a2 and winding glass layer b3 is 5.0 5.9%, in order that even
Continuous sucker rod has good torsional strength and reserves enough secure thresholds, and the content being wound around glass fibre must be enough,
Through the probe to use demand and systematic analysiss, minimum is set as 5.0%, in order to avoid coiled rod herein
Improve precision controlling cost because excessively strict precision controlling requires in production, avoid the invalid loss of material, herein simultaneously
The upper limit being wound around the weight/mass percentage composition of glass fibre is set as 5.9%.
Being wound around glass layer a2 and the winding thickness of winding glass layer b3 two-layer is 0.4 0.6mm, under thickness
Limit value is set to 0.4mm, and the glass fibre just being completely secured in longitudinal glass layer 4 will not be admixed to carbon fiber core 1
Interior, improve precision controlling cost because excessively strict precision controlling requires in producing in order to avoid coiled rod, keep away simultaneously
Exempt from the invalid loss of material, the thickness being wound around glass fibre can float to 0.6mm upwards.
The glass fibre of longitudinal glass layer 4 and carbon fiber core 1 be arranged in parallel, longitudinal glass layer 4 mass hundred
Divide content 32 38%, longitudinal glass layer 4 is made up of 42/2400tex--106 root/2400tex glass fibre, longitudinally
Glass layer 4 acts primarily as anti-shearing effect, therefore the line density of glass fibre is necessarily claimed.Line is adopted in the present invention
Density is the glass fibre of 2400tex, to ensure good anti-shear ability.And in actual production, line density is too high (i.e. fine
Tieed up thick) bond effect of epoxy resin and the uniformity of longitudinal glass layer 4 can be had a strong impact on, therefore, meeting shearing resistance
In the case of cutting performance, line density is set to 2400tex, unsuitable too high.
Longitudinal glass layer 4 is being wound around glass layer b3 outer wall by epoxy bond.
Described glass fibre can adopt s level alkali-free glass fibre.Glass fiber strength >=2500mpa；Line density 2400
± 5%tex；Tensile modulus of elasticity >=88gpa, moisture content≤0.1%.
Constitute the glass fibre of longitudinal glass layer 4 and carbon fiber core 1 be arranged in parallel so that longitudinal glass layer
4 can share drag load jointly with carbon fiber core 1, be conducive to improving the tensile strength of coiled rod.
The outside of sucker rod is additionally provided with polyethylene layer 6 and graphene layer 7.Graphene has fabulous anti-wear performance, is giving birth to
During product, the thickness of graphene layer is minimum, therefore, in the case that oil pumping shank diameter is certain, increases graphene layer 7 and does not interfere with it
The structure distribution of its each layer.
Polyethylene layer 6 and graphene layer 7 give sucker rod more excellent anti-wear performance, meanwhile, by sucker rod surface
Setting multiple structure, can avoiding fluid to permeate, delaying resin hydrolyzing, thus preventing sucker rod from damaging because of resin hydrolyzing.Involved
And technology maturation reliable, stability is high.
Heat cured polyethylene layer 6 and graphene layer 7 is increased on the basis of original carbon fiber pultrude process.In oil pumping
While the bending diameter of bar itself does not increase, using the wearability of Graphene, increase the anti-wear performance of continuous lever.Work as Graphene
After wear out failure, thermosetting polyethylene replaces its performance to continue the internal structure of protection sucker rod.And heat cured polyethylene
Epoxy resin layer 5 with sucker rod is two phase structure, after thermosetting polythene material wear out failure, can be by corresponding technique
Undamaged portion is peeled off and is again repaired, increased sucker rod service life.
In such scheme, in described winding glass layer a2, winding glass layer b and longitudinal glass layer
Glass fibre adopts s level alkali-free glass fibre, glass fiber strength >=2500mpa；Line density 2400 ± 5%tex；Tensile elasticity
Modulus >=88gpa, moisture content≤0.1%.
160 DEG C of epoxy resin heatproof in such scheme, epoxy resin stretching intensity 60-85mpa, stretch moduluses 2.5-
3.0gpa, percentage elongation 3.5-5.0%, bending strength 100-135mpa, bending moduluses 2.5-3.5gpa.Above-mentioned parameter ensure that ring
The intensity of oxygen tree lipid layer 5, prevents it from ftractureing in BENDING PROCESS.Epoxy resin is purchased from favour cypress new material science and technology (Shanghai) share to be had
Limit company.
Extended state in order to ensure the extended state of glass fibre and epoxy resin and carbon fiber can when bearing load
With collaborative variation (preventing glass fibre fracture or epoxy resin cracking), the selection of glass fibre and epoxy resin must strictly according to
Determine according to above-mentioned parameter.
The present invention devises supporting sucker rod special joint for this coiled rod, permissible by this rod connector
This coiled rod quickly, stably, is reliably connected with common pumping rod made by steel.Rod connector is mainly by tapered sleeve 8, outer
Sleeve pipe 9 and union joint 10 form, and are threaded connection between trocar sheath 9 and union joint 10, and tapered sleeve 8 is encapsulated outside by union joint 10
In sleeve pipe 9, tapered sleeve 8 is taper seat with the contact surface of trocar sheath 9, and the two ends of described tapered sleeve 8 are respectively machined with an otch 11, cut
Mouth 11 is cut in the axial direction, and the plane at two otch 11 places is mutually perpendicular to, and the length of otch 11 accounts for the hundred of tapered sleeve 8 total length
Divide ratio for 85%-90%.
When coiled rod is connected with above-mentioned rod connector, union joint 10 is pulled down and makes tapered sleeve 8 and 9 points of trocar sheath
From, then make the end of coiled rod penetrate trocar sheath 9 and tapered sleeve 8 successively, so that tapered sleeve 8 is again fitted with trocar sheath 9,
During laminating, tapered sleeve 8 side wall constantly draws close laminating to coiled rod, coiled rod clamping the most at last.Pump continuous
After bar bears drag load, tapered sleeve 8 side wall draws close laminating to coiled rod further, and the bigger clamping force of drag load is bigger,
Eliminate that coiled rod gets loose may be it is ensured that the reliability that connects.Respectively it is machined with an otch 11 at the two ends of tapered sleeve 8
And the plane at two otch 11 places is mutually perpendicular to, such incision design is so that all sections on tapered sleeve 8 all can be outside
Laminating is drawn close to coiled rod, effective clamping length of tapered sleeve 8 is equal to the length of tapered sleeve 8 under the squeezing action of sleeve pipe 9 inwall,
Compared with arranging otch 11 in one end of tapered sleeve 8, the reliability of clamping greatly enhances.In addition, the length of otch 11 to account for tapered sleeve 8 total
The percentage limit of length be 85%-90%, if otch 11 is long, the structural strength of tapered sleeve 8 can be weaker, produce,
Install and use during be easily damaged, if otch 11 is too short, the flexibility of tapered sleeve 8 will be deteriorated, impact tapered sleeve 8 inwall with
The circumferential laminating degree of coiled rod, and then the reliability and stability of clamping are impacted.
Sucker rod to the application is presented herein below test, test result is as follows:
1) shear strength reaches 92mpa；Tensile modulus of elasticity >=150gpa.
2) fatigue behaviour of sucker rod is tested, lowest pull 40kn, maximum pull 120kn, tension variations frequency
100hz, number of times 1,000 ten thousand times.
3) carbon-fiber continuous rod body of rod performance:
Table 1
| Sequence number | Detection project | Unit | Data demand | Measured data |
| 1 | Specification | mm | 19±0.2 | 19.10 |
| 2 | Density | g/m3 | 1.5-1.95 | 1.736 |
| 3 | Radially pressure | kn | ≥110 | 119.1 |
| 4 | Bending strength | mpa | ≥800 | 1046 |
| 5 | The modulus of elasticity in static bending | gpa | ≤100 | 85.6 |
| 6 | Tensile failure load | kn | ≥690 | 700.5 |
| 7 | Stretch moduluses | gpa | ≥150 | 152 |
| 8 | Performance level shear strength | mpa | ≥60 | 92 |
| 9 | Glass transition temperature (tg) | ℃ | ≥160 | 181.14 |
Table 2
Sucker rod stretch test result: tensile strength: 1831mpa, fracture elongation: 1.84%, stretch moduluses are
152gpa.
4) sucker rod circular cross-section d (mm): 153.938 (mm2) when load-bearing 46.18 (ton), 201.062 (mm2) load-bearing
60.32 (tons), 283.529 (mm2) load-bearing 85.06 (ton).
5) density of sucker rod is tested with (taking 5 sucker rods), result is as follows:
Table 3
6) compressive property of sucker rod is tested with (taking 3 sucker rods), result is as follows:
Table 4
| Maximum load n | |
| 1st | 140471.09 |
| 2nd | 102943.23 |
| 3rd | 113920.12 |
| Meansigma methodss | 119111.48 |
Note: the equal establishing criteria q/jhy006-2014 of above test data measures.
Claims (5)
1. a kind of multi-layer wear-resistant with graphite ene coatings wipes carbon-fiber continuous rod, including carbon fiber core (1), its feature
Be: described carbon fiber core (1) outward successively spiral winding have winding glass layer a (2) and winding glass layer b
(3), it is wound around glass layer b (3) and is coated with longitudinal glass layer (4), longitudinal glass layer (4) outer wall is coated with ring
Oxygen tree lipid layer (5), by 150/12k---242 root/12k, the carbon that carbon fiber passes through epoxy bond is fine for carbon fiber core (1)
Dimension bundle is constituted, and more than carbon fiber tensile strength 4950mpa, the weight/mass percentage composition of carbon fiber core (1) is 33.1---
28.3%, a diameter of 11--14mm of carbon fiber core (1), are wound around glass layer a (2) and are wound around glass layer b (3) two-layer
The winding screw angle being wound around glass fibre is 45 °, and winding direction is contrary, is wound around glass layer a (2) and is wound around glass fibre
Layer b (3) on carbon fiber core (1), is wound around glass layer a (2) and is wound around glass layer b (3) by epoxy bond
Weight/mass percentage composition be 5.0 5.9%, be wound around glass layer a (2) and be wound around glass layer b (3) two-layer winding thickness
Spend for 0.4 0.6mm, the glass fibre of longitudinal glass layer (4) and carbon fiber core (1) be arranged in parallel, longitudinal glass fibers
Dimension layer (4) weight/mass percentage composition 32 38%, longitudinal glass layer (4) is by 42/2400tex--106 root/2400tex's
Glass fibre forms, and longitudinal glass layer (4) is being wound around glass layer b (3) outer wall by epoxy bond, sucker rod
Two terminations are connected with rod connector, and the pulling force that the junction of rod connector and oil pumping club shaft can be born reaches 698kn,
Shear strength reaches 92mpa；More than tensile modulus of elasticity 150gpa.
2. a kind of multi-layer wear-resistant with graphite ene coatings according to claim 1 wipes carbon-fiber continuous rod, and it is special
Levy and be: the outside of sucker rod is additionally provided with polyethylene layer (6) and graphene layer (7).
3. a kind of multi-layer wear-resistant with graphite ene coatings according to claim 1 wipes carbon-fiber continuous rod, and it is special
Levy and be: described winding glass layer a (2), the glass being wound around in glass layer b (3) and longitudinal glass layer (4)
Fiber adopts s level alkali-free glass fibre, more than glass fiber strength 2500mpa；Line density 2400 ± 5%tex；Tensile elasticity mould
Amount more than 88gpa, moisture content are below 0.1%.
4. a kind of multi-layer wear-resistant with graphite ene coatings according to claim 1 wipes carbon-fiber continuous rod, and it is special
Levy and be: 160 DEG C of described epoxy resin heatproof, epoxy resin stretches intensity 60-85mpa, stretch moduluses 2.5-3.0gpa, stretches
Long rate 3.5-5.0%, bending strength 100-135mpa, bending moduluses 2.5-3.5gpa, epoxy resin heatproof reaches 160 DEG C.
5. a kind of multi-layer wear-resistant with graphite ene coatings according to claim 1 wipes carbon-fiber continuous rod, and it is special
Levy and be: described rod connector is mainly made up of tapered sleeve (8), trocar sheath (9) and union joint (10), trocar sheath (9) with even
Joint is threaded connection between (10), and tapered sleeve (8) is encapsulated in trocar sheath (9) union joint (10), tapered sleeve (8) and trocar sheath
(9) contact surface is taper seat, and the two ends of described tapered sleeve (8) are respectively machined with an otch (11), and otch (11) is along axis side
To incision, the plane that two otch (11) are located is mutually perpendicular to, and the percentage ratio that the length of otch (11) accounts for tapered sleeve (8) total length is
85%-90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106337659B (en) | 2017-11-17 |
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