CN203008798U - Fiber reinforced composite material anti-eccentric continuous sucker rod - Google Patents
Fiber reinforced composite material anti-eccentric continuous sucker rod Download PDFInfo
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- CN203008798U CN203008798U CN 201220646475 CN201220646475U CN203008798U CN 203008798 U CN203008798 U CN 203008798U CN 201220646475 CN201220646475 CN 201220646475 CN 201220646475 U CN201220646475 U CN 201220646475U CN 203008798 U CN203008798 U CN 203008798U
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Abstract
The utility model relates to a fiber reinforced composite material anti-eccentric continuous sucker rod, which has the technical scheme that a layer of thermoplastic wear-resistance layer is covered on one section or several sections of the outer surface of a composite material rod body of a fiber reinforced resin base body, the fiber adopted by the rod body is one kind of fibers from glass fibers, carbon fibers or basalt fibers, and the resin base body is made of one kind of materials from epoxy resin, polyurethane resin or vinyl ester. A plastic extrusion machine and a cooling device are arranged between a traction device and a coiling device, a layer of thermoplastic wear-resistance layer is covered on one section or several sections of the outer surface of the formed sucker rod by using the plastic extrusion device, then, the cooling treatment is carried out through the cooling device, and the fiber reinforced composite material anti-eccentric continuous sucker rod is formed. The fiber reinforced composite material anti-eccentric continuous sucker rod has the advantages that excellent anti-corrosion and anti-eccentric performance is given to the sucker rod, the joint number is greatly reduced, the disconnection probability and the piston effect are reduced, in addition, the production efficiency is high, and the operation is simple and convenient.
Description
Technical field
The utility model relates to a kind of petroleum industry oil production equipment, particularly the anti-eccentric wear coiled rod of a kind of fibre reinforced composites.
Background technology
Because the Oil Reservoir Types of exploitation becomes increasingly complex, the continuous deterioration of the simultaneously continuous increase of well depth and well ore deposit environment, corrosion and eccentric wear problem become oil extraction in oil field technique problem demanding prompt solution.Because possess the corrosion resistant characteristics of high-strength light, so the composite material sucker rod has begun progressively to replace traditional metal sucker rod.The composite material sucker rod that adopts at present mainly comprises glass fiber reinforced plastic oil pumping rod and the large class of carbon fibre reinforced composite coiled rod two.Glass fiber reinforced plastic oil pumping rod adopts the pultrude process one-shot forming preparation of glass-fiber reinforced thermo-setting resin, extensive use, but along with the reliability requirement of modern times oil recovery improves constantly, glass fiber reinforced plastic oil pumping rod can not meet the demands, mainly there is following problem, 1, the anti-eccentric wear of sucker rod is bad; 2, fatigue strength is inadequate; 3, the equal fixed length of glass fiber reinforced plastic oil pumping rod, respectively there is a metal joint at two ends, adopt the metal box cupling of metal pumping rod application to be connected between root and root, and due to complex structure, difficulty of processing is large, and is expensive.Each root glass fiber reinforced plastic oil pumping rod is with two metal joints, and the cost of these two metal joints is far above the cost of a glass fiber reinforced plastic body of rod; Compare with the traditional metal sucker rod in addition, except shank portion has been changed material, other parts of whole rod string there is no change, traditional metal rod string joint is many, breaking, it is high to take off probability, and piston effect is obvious, and the serious problem of box cupling and oil pipe eccentric wear is not resolved.Chinese patent CN1417449 discloses a kind of preparation method of Anti-wear oil pumping rod, the method is the anti-abrading block of the material such as secondary injection molding nylon in type sucker rod body, reduce the clad material that uses, reduce and coat continuously cost and process complexity, but the anti-abrading block size of its injection moulding is less, anti-abrading block often occurs and breaks away from the body of rod, appearance " sugarcoated haws " phenomenon in the relatively independent body of rod that is distributed in.In addition, its body of rod fixed length can not solve the traditional metal rod connector many, the defective such as the break-off accident rate is large, and piston effect is large; And to install anti-bias abrading block on the less body of rod of size additional be to solve eccentric wear problem between metal joint and box cupling and oil pipe, and this is only the emphasis that sucker rod, pipe eccentric wear need to solve.CN101396874 discloses a kind of preparation method and device of anti-eccentric wear composite material sucker rod, its preparation method is on the in type composite material sucker rod body of rod, the anti-eccentric wear layer of the abrasion resistant fibrous continuous-winding forming spiral bar shape such as the aramid fiber, High molecular weight polyethylene of resin adhesive liquid was flooded in utilization, to reach anti-eccentric wear effect.The anti-eccentric wear layer of its spiral bar shape, owing to being with abrasion resistant fibrous enhancing thermosetting resin, although therefore fiber has antiwear characteristic, after forming composite material with thermosetting resin, its wear resistance decrease is a lot, and how many life-spans can not extend.Except it possessed the anti-eccentric wear layer of spiral bar shape, its shortcoming was the same with common glass fiber reinforced plastic oil pumping rod.Chinese patent CN1461870 discloses a kind of carbon fibre reinforced composite coiled rod and preparation method, the employing carbon fiber is reinforcing material, and by transversely arranged aramid fiber or superhigh molecular weight polyethylene fibers bundle and longitudinally glass fiber to form integral coating compound, mainly solve and strengthen the horizontal interlaminar shear strength of sucker rod, thereby avoid sucker rod that the problem of longitudinal splitting occurs in oil well, also improved anti-eccentric wear and the intensity of the body of rod simultaneously.But this sucker rod adopts the Integratively processing method (comprise and put silk-resin pickup glue-clad coating-preformed-curing-coiling operation) of pultrusion, coating, clad is that fabric strengthens thermosetting resin, not only strengthened material cost, and the anti-eccentric wear of fabric clad is not ideal enough.In addition, because this carbon fibre reinforced composite coiled rod cross sectional shape is rectangle or ellipse, and its thickness only has 3～5mm, when application specific equipment removes well operations, the material of retained part almost can't be selected, and can only adopt the two-piece type clamping, left and right directions can't be spacing, is easy to occur the phenomenon that the body of rod deflects away from retained part.Therefore its special use go into the well implement retained part structure and the developing material difficulty larger, become the technical bottleneck of carbon fibre reinforced composite coiled rod in using, limited this product large-scale promotion application.
The utility model content
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provide a kind of fibre reinforced composites to prevent the eccentric wear coiled rod, to solve corrosion in oil extraction in oil field production and eccentric wear problem as main purpose, prepare that corrosion-resistant and anti-eccentric wear performance is good, joint is few, break and take off the sucker rod that probability is little, piston effect is little, operation is easy to use.
A kind of fibre reinforced composites are prevented the eccentric wear coiled rod, one section or several sections at the external surface of the fiber reinforced resin based composite material body of rod is covered with one deck thermoplastic wearing layer, and described thermoplastic wearing layer is a kind of the making in high density polyethylene (HDPE), acrylonitrile-butadiene-styrene, polyformaldehyde, nylon, polyphenylene oxide, polysulfones, polytetrafluoroethylene (PTFE) or polyether-ether-ketone.
The fiber that the above-mentioned fiber reinforced resin based composite material body of rod adopts is that a kind of of glass fiber, carbon fiber or basalt fibre makes, and the resin matrix of employing is a kind of of epoxy resin, polyurethane resin or vinyl ester resin.
The cross sectional shape of the above-mentioned fiber reinforced resin based composite material body of rod is for just round or oval.
The beneficial effects of the utility model are: extrude continuously on the continous sucker rod made of fiber reinforced composition surface and form continuous one section or interrupted several sections thermoplastic wearing layers, given the corrosion-resistant and anti-eccentric wear performance of sucker rod excellence, reduced greatly again joint quantity, reduced to resolve and take off probability and piston effect; Longer in conjunction with length between both of the sucker rod body of rod and plastic wear-resisting layer simultaneously, intensity is very high, has avoided in slippage and the layering from the sucker rod surface of the normal in service anti-eccentric wear layer of oil well, and in addition, its production efficiency is high, and is easy and simple to handle.
Description of drawings
Accompanying drawing 1 is the structural representation of the fiber reinforced resin based composite material body of rod of the present utility model;
Accompanying drawing 2 is schematic flow sheets of preparation facilities of the present utility model;
In upper figure: put guide frame 1, pretreatment heating furnace 2, injector 3, injection molding 4, equipment for cooling die 5, pultrusion die 6, mold heating device 7, control section 8, rear solidifying heating furnice 9, draw-gear 10, coiler device 11, plastic extruder 12 and cooling unit 13; Thermoplastic wearing layer a, fiber reinforced resin based composite material body of rod b.
The specific embodiment
with reference to accompanying drawing 1, the fibre reinforced composites that the utility model is mentioned are prevented the eccentric wear coiled rod, one section or several sections at the external surface of fiber reinforced resin based composite material body of rod b is covered with one deck thermoplastic wearing layer a, described thermoplastic wearing layer a is high density polyethylene (HDPE), acrylonitrile-butadiene-styrene, polyformaldehyde, nylon, polyphenylene oxide, polysulfones, a kind of making in polytetrafluoroethylene (PTFE) or polyether-ether-ketone, the thickness of thermoplastic wearing layer a is 1～10mm, the fiber that described fiber reinforced resin based composite material body of rod b adopts is glass fiber, the a kind of of carbon fiber or basalt fibre makes, the resin matrix that adopts is epoxy resin, polyurethane resin or vinyl ester resin a kind of, the continuous length of the body of rod of making is 1～5000m.
with reference to accompanying drawing 2, preparation facilities of the present utility model comprises puts guide frame 1, pretreatment heating furnace 2, injector 3, injection molding 4, equipment for cooling die 5, pultrusion die 6, mold heating device 7, control section 8, rear solidifying heating furnice 9, draw-gear 10, coiler device 11 forms injection pultrusion equipment, its improvements are: be provided with a plastic extruder 12 and cooling unit 13 between the draw-gear 10 of injecting pultrusion equipment and coiler device 11, utilize plastic extrusion apparatus 12 at surface attachment one deck thermoplastic wearing layer of the moulding body of rod, then through apparatus for supercooling 13 cooling processing, in the bottom of injection molding 4, one or two adhesive pouring nozzles are housed, one or two vacuum nozzles are equipped with at the top, the external vacuum tube of vacuum nozzle, and vacuum tube is connected with vacuum tank, and vacuum tank is controlled by vacuum pump, continue to keep when producing 〉=-vacuum of 0.85MPa, described injector 3 is passed through the adhesive pouring nozzle of bottom to the inner resin by injection Matrix adhesive of injection molding.
Wherein, above-mentioned fiber reinforced resin based composite material body of rod b, its cross sectional shape is for just round or oval, and its continuous length is generally 1～5000m, thermoplastic wearing layer a, its thickness is generally 1～10mm, in the longitudinal direction, in the sucker rod body of rod and the corresponding position appearance of oil pipe eccentric wear well section, it can be only continuous one section, can be interrupted several sections, all the other positions of the body of rod do not need all to adhere to wearing layer yet.
By adopting above-mentioned preparation facilities, realize preparation method of the present utility model specifically:
(a) draw multiple fibre (glass fiber, carbon fiber or basalt fibre) from putting guide frame 1, process heating furnace 2 pretreatment under the traction of draw-gear 10, atmosphere is air, furnace temperature is between 80～150 ℃, hauling speed between 0.08～1.5 m/min, by the time be 1.0～12.5 minutes; Enter injection molding 4 from heating furnace 2 fiber out, be full of the resin matrix glue 4.3 that injector 3 is injected in injection molding 4, resin matrix is epoxy resin, vinyl ester resin or polyurethane resin.
(b) fiber bundle through the interior glue dipping of injection molding 4 passes through pultrusion die 6 curing moldings again, and the entrance of pultrusion die 6 is provided with equipment for cooling die 5, for reducing the die entrance temperature, avoids mold temperature to conduct to injection molding 4.Around pultrusion die 6, the back of equipment for cooling die 5 is distributed with mold heating device 7, general 2～4 sections heating, solidification temperature between 95～180 ℃, heating mode in gradient, pultrusion speed is between 0.08～1.5 m/min, pultrusion goes out the composite material body of rod.The composite material body of rod that pultrusion goes out enters rear solidifying heating furnice 8 and carries out thermal stress processing and rear curing, and rear curing finishes, by draw-gear 10.
(c) between the draw-gear 10 and coiler device 11 of injection extruding equipment, a sleeving plastic extrusion device 12 and cooling unit 13 are set, utilize plastic extrusion apparatus 12 at one section or surface attachment one deck thermoplastic wearing layer of several sections of the moulding oil pumping body of rod, then through apparatus for supercooling 13.After fully being cooled to room temperature, utilize coiler device 11 that it is wound on the disk of diameter for 1.5m～3.5m.
Comprehensive, the utility model is to adopt injection pultrusion and plastic extrusion assembling process, a kind of with glass fiber, carbon fiber or basalt fibre, compound by injection pultrusion molding process and resin matrix, the preparation composite material sucker rod body of rod, directly as the heart yearn in plastic extrusion process, pass the head guide rod, rely on the pipe of head extrusion molding to meet convergent force stronger when cold, sucker rod and wearing layer strong bonded finally form the anti-eccentric wear coiled rod of fibre reinforced composites.
Claims (3)
1. fibre reinforced composites are prevented the eccentric wear coiled rod, it is characterized in that: one section or several sections at the external surface of the fiber reinforced resin based composite material body of rod (b) is covered with one deck thermoplastic wearing layer (a), and described thermoplastic wearing layer (a) is a kind of the making in high density polyethylene (HDPE), acrylonitrile-butadiene-styrene, polyformaldehyde, nylon, polyphenylene oxide, polysulfones, polytetrafluoroethylene (PTFE) or polyether-ether-ketone.
2. fibre reinforced composites according to claim 1 are prevented the eccentric wear coiled rod, it is characterized in that: the fiber that the described fiber reinforced resin based composite material body of rod (b) adopts is that a kind of of glass fiber, carbon fiber or basalt fibre makes, and the resin matrix of employing is a kind of of epoxy resin, polyurethane resin or vinyl ester resin.
3. fibre reinforced composites according to claim 1 are prevented the eccentric wear coiled rod, it is characterized in that: the cross sectional shape of the described fiber reinforced resin based composite material body of rod (b) is for just round or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646475 CN203008798U (en) | 2012-11-30 | 2012-11-30 | Fiber reinforced composite material anti-eccentric continuous sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646475 CN203008798U (en) | 2012-11-30 | 2012-11-30 | Fiber reinforced composite material anti-eccentric continuous sucker rod |
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| Publication Number | Publication Date |
|---|---|
| CN203008798U true CN203008798U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646475 Expired - Lifetime CN203008798U (en) | 2012-11-30 | 2012-11-30 | Fiber reinforced composite material anti-eccentric continuous sucker rod |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343396A (en) * | 2013-08-02 | 2015-02-11 | 中国石油天然气股份有限公司 | Production method for coiled sucker rod made of fiber reinforced composite material |
| CN105178878A (en) * | 2015-09-28 | 2015-12-23 | 江苏众成复合材料有限责任公司 | Fiber-reinforced composite coiled sucker rod and production apparatus and method thereof |
| WO2017186021A1 (en) * | 2016-04-25 | 2017-11-02 | 张建功 | Oil extraction system |
| CN113833713A (en) * | 2021-10-18 | 2021-12-24 | 浙江昊达气动科技有限公司 | Thin cylinder |
-
2012
- 2012-11-30 CN CN 201220646475 patent/CN203008798U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343396A (en) * | 2013-08-02 | 2015-02-11 | 中国石油天然气股份有限公司 | Production method for coiled sucker rod made of fiber reinforced composite material |
| CN105178878A (en) * | 2015-09-28 | 2015-12-23 | 江苏众成复合材料有限责任公司 | Fiber-reinforced composite coiled sucker rod and production apparatus and method thereof |
| CN105178878B (en) * | 2015-09-28 | 2019-09-03 | 江苏众成复合材料有限责任公司 | A kind of continuous sucker rod made of fiber reinforced composition and its preparation facilities and method |
| WO2017186021A1 (en) * | 2016-04-25 | 2017-11-02 | 张建功 | Oil extraction system |
| CN113833713A (en) * | 2021-10-18 | 2021-12-24 | 浙江昊达气动科技有限公司 | Thin cylinder |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 257091, No. 221, South Road, an industrial park, Dongying Economic Development Zone, Shandong Patentee after: Shengli new big new materials Co.,Ltd. Address before: 257091, No. 221, South Road, an industrial park, Dongying Economic Development Zone, Shandong Patentee before: SHENGLI OIL FIELD XINDA PIPE INDUSTRY TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |